AP42 Section: 4.12, Draft 1997 I Rubber Manufacturer's Assoc

Total Page:16

File Type:pdf, Size:1020Kb

AP42 Section: 4.12, Draft 1997 I Rubber Manufacturer's Assoc AP42 Section: 4.12, draft 1997 Related: 1 Title: Development of the Emission Factors for the Rubber Manufacturing Industry Volume I: Emission Factor Program Results - Final Report, May 1995 Volume 3: Test Program Protocol - January 1995 TRC Environmental, presented to I Rubber Manufacturer’s Assoc. Presented to Rubber Manufacturers Association RMA Presented by TRC Environmental Corporation TRC Project No. 16157 0 i‘ May 1995 DEVELOPMENT OF EMISSION FACTORS FOR THE RUBBER MANUFACTURING INDUSTRY Volume 1 Emission Factor Program Results Final Report Prepared for Rubber Manufacturers Association (RMA) Suite 900 1400 K Street, N.W. e Washington, District of Columbia 20005 Prepared by TRC Environmental Corporation Boott Mills South Foot of John Street Lowell, Massachusetts 01852 (508) 970-5600 DISCLAIMER This repon is intended for use solely by the Rubber Manufacturers Association for the specific purposes described in the contractual documents between TRC Environmental Corporation and the Rubber Manufacturers Association. All professional services performed and repons generated by TRC have been prepared for the Rubber Manufacturers Association’s purposes as described in the conuact. The information. statements and conclusions contained in the repon have been prepared in accordance with the work statement and contract terms and conditions. The repon may be subject to differing interpretations andlor may be misinterpreted by third persons or entities who were not involved in the investigative or consultation process. TRC Environmental Corporation therefore expressly disclaims any liability to persons other than the Rubber Manufacturers Association who may use or rely upon this repon in any way or for any purpose. DEVELOPMENT OF EMISSION FACTORS FOR THE RUBBER MANUFACTURING INDUSTRY OMRMEW The contributions of the members of the Environment Committee of the Rubber Manufacturers Association in the preparation of this document are hereby gratefully adtnowledged. The Rubber Manufacturers Association is a cooperative manufacturing trade association with more than 150 member companies. While RMA member companies are bound together by a common denominator-basic raw materials-the membership embraces several industries with often dissimilar problems. For this reason, the services of the RMA are organized into five business groups including: General Products, Information and Statistics, Public Affairs, Technical and Standards, and Finance and Administration. The goals of these groups are to: 1) serve as a forum for exchange of information with and among member companies on issues of common concern, and in areas of common interest 2) provide a single voice for the indusby in dealing with its publics, including government. consumers, and the general public; 3) monitor, recommend and promote the indusky viewpoints on legislative and regulatory issues of concern, and investigate and report on the potential impact of these issues on the rubber indusby; 4) coordinate formulation of indusby positions on domestic and international standards; and 5) establish and maintain dose working relationships with other organizations which share wmninterests and concerns. @ 1995 by The Rubber ManufacturersAssociation, Inc., 1400 K Street, N.W., Washington, D.C. 20005 All Rights Reserved This dowment may not be reproduced, stored in a retrieval system, or transmitted in whole or part, in any form or by any means, electronic, mechanical, photocopying, recording, or otherwise, without the written permission of the Rubber Manufacturers Association. Printed in the United States of America ACKNOWLEDGEMENTS The authors would like to acknowledge the members of the Rubber Manufacturers Association (arranged alphabetically) who provided guidance and funding for this project. The following persons devised the technical scope of the project and provided their talents and skills to the completion of this program: Chris Conky, GenCorp; Lynn Cooper, Michelin North America; Dave Chapman, The Goodyear Tire and Rubber Company; John Finn, Continental General Tire; Nancy Ray-Jandrokovic, The Goodyear Tire and Rubber Company; Ernie Karger, The Gates Rubber Company; Alva King, Bridgestone/Firestone, Inc. ; Peter Provost, PireWAmstrong Tire Corporation; Dan Pyanowski, Dunlop Tire Corporation; Tom Wood, Cooper Tire and Rubber Company. Additionally, special thanks go to the following who provided invaluable technical expertise: Alan Goldstein, Michelin North America; Gary Killean, The Goodyear Tire and Rubber Company; Arvis McKamie, Bridgestone/Firestone, Inc.; Ed Morant, Continental General Tire; Gary Tompkin, The Goodyear Tire and Rubber Company; Joan Traeger, GenCorp. Finally, the authors would like to thank the following for providing key assistance in this project: Lynn Adkins, Bridgestone/Firestone, Inc.; Paul Crosser, Bandag, Inc.; John Fecteau, Western Consolidated Technologies; John Foged, Dayco Products, Inc.; Ray Hahn, Cooper Tire and Rubber; Larry Kagel, CR Industries; John Kell, Carlisle Tire and Rubber Company; Tom Rhodarmer, Dayco Products, Inc.; Rick Rupert, DTR Industries, Inc. ; Bob Schiffer, Carlisle Tire and Rubber Company; Paul Standley, Dayco Products, Inc. The companies which have participated in the Rubber Manufacturers Association Emission Factors Project are presented on the following page. .. L95-035.1 11 The following companies are participants in the RMA Emission Factors Development Project Abbott Laboratories HBD Industries, Inc. Acadia Elastomers Corporation John Crane, Inc. Albert Trostel Packings, Ltd. Johnson Rubber Company Akron Rubber Lining Kelly-Springfield Tire Company Ames Rubber Corporation Kismet Products Inc. Ashtabula Rubber Company Latex Foam Products, Inc. Bandag, Inc. MBL (U.S.A.) Corporation Bando Manufacturing of America, Inc. Michelin North America Beloit Manhattan Molded Dimensions, Inc. Boston Industrial Products, Div. of Neff-Perkins Company Dana Corp. Patch Rubber Company BridgestoneIFirestone, Inc. Pawling Corporation Buckhorn Rubber Products, Inc. Pirelli Armstrong Tire Corporation Cadillac Rubber & Plastics, Inc. hotective Coatings, Inc. Carlisle Tire & Rubber Company, Rice-Chadwick Rubber Company Division of Carlisle Corp. Robbins, Inc. Caterpillar, Inc. Rubber Rolls, Inc. Central Rubber Company Scandura, Inc. Chardon Rubber Company Schlegel N.A.A.O. Chicago-Allis Manufacturing Company Specification Rubber Products, Inc. Clevite Elastomers, a Pullman Sperry Rubber & Plastics Company, Inc. Company Syntex Rubber Corporation Continental General Tire Inc. T & M Rubber, Inc. Cooper Tire & Rubber Company TBMC, Inc. CR Industries The Gates Rubber Company Cupples Rubber Company The Goodyear Tire & Rubber Company Custom Rubber Corporation The Standard Products Company Dawson Manufacturing Company Titan Industries Dayco Products, Inc. Toyo Tire (U.S.A.) Corporation DTR Industries, Inc. Trellex Morse, Division of Svedala Dunlop Tire Corporation Industries, Inc. Eagle-Picher Rubber Molding Division TruflexlPang Rubber Products Federal-Mogul Corporation, Sealing Company Products Group Vail Rubber Works, Inc. Fenner Inc., Fenaplast Division Waukesha Rubber Company, Inc. Freudenberg-NOK, General Partnership West American Rubber Company, Inc. Fulflex, Inc. Western Consolidated Technologies Garlock Mechanical Packing, Division Yale-South Haven, Inc. of Colt Industries Yokohama Tire Corporation GenCorp, Inc. Georgia Duck & Cordage Mill Globe International, Inc. Goshen Rubber Company, Inc. Hawkeye Rubber Manufacturing Company ... L95-035.1 111 TABLE OF CONTENTS Page 1 INTRODUCTION ............................................ 1-1 1.1 Program Overview and Objectives ............................ 1-1 1.2 Emission Factor Project Definitions ........................... 1-2 1.3 Emission Factor Summary ................................. 1-4 1.4 Report Series Format ...................................... 1-4 2 EMISSIONS FACTOR DEVELOPMENT APPROACH .................. 2-1 2.1 General Process Description ................................ 2-1 2.2 Equipment Scale Considerations .............................. 2-3 2.3 Selection of Compounds and Target Pollutants ................... 2-4 2.4 Description of Sampling / Analytical Regimes ................... 2-7 2.5 Data Analysis Approach - Volume 2 ........................... 2-7 2.6 Development of Final Factors - Volume 1 ..................... 2-13 3 DESCRIPTION OF TEST FACILITIES ........................... 3-1 3.1 Processes Employing Generic Rubber Compounds ................ 3-1 3.1.1 Internal MixerDrop Mill .............................. 3-1 3.1.2 Extrusion ........................................ 3-2 3.1.3 Autoclave Curing ................................... 3-2 3.1.4 Platen Press Curing .................................. 3-3 3.1.5 Hot Air Oven Curing ................................ 3-5 3.2 Tire Curing ............................................ 3-6 3.2.1 Laboratory Scale .Tire Curing .......................... 3-6 3.2.2 Full-Scale Tire Curing ............................... 3-6 3.3 Other Rubber Processing .................................. 3-6 3.3.1 Warmup Milling ................................... 3-6 3.3.2 Calendering ........................................ 3-7 3.4 Tire Grinding Processes ................................... -3-8 3.4.1 ForceBalance Grinding .............................. 3-8 3.4.2 SidewallNhitewall Grinding ........................... 3-8 3.4.3 Retread Buffing .................................... 3-8 3.4.4 Tire Carcass Grinding ................................ 3-9 3.5 Engineered Products
Recommended publications
  • 5. Progress in Radiation Vulcanization of Natural Rubber Latex
    JP0050691 JAERI-Conf 2000^003 5. Progress in Radiation Vulcanization of Natural Rubber Latex K. MAKUUCHI Takasaki Radiation Chemistry Research Establishment, JAERI 1233 Watanuki, Takasaki Gunma, 370-12 Japan 1. INTRODUCTION Radiation-induced crosslinking of natural rubber in latex can be accomplished by irradiating NR latex. The dose at which the maximum tensile strength (Tb) is found is called vulcanization dose (Dv). The Dv of NR latex is more than 250 kGy that is too high to be used in industry. The first RV accelerators proposed was carbon tetrachloride. Addition of 5 phr of carbon tetrachloride can reduce. The RVNRL was selected as one of the regional projects of the International Atomic Energy Agency (IAEA) known as the Regional Cooperative Agreement in the Asia and Pacific Region (RCA) in 1981. A pilot plant for the RVNRL was built in. Jakarta in 1983. The products from the pilot plant were tested and evaluated by several institutes in the region during 1983-1985, The results were as follows: Low tensile strength (less than 20MPa) Poor aging properties Inconsistent properties Not economic due to high dose requirement No advantages The results caused argument among the RCA member states and the IAEA whether the project should be continued or stopped. The preliminary R&D in the TRCRE on RVNRL indicated that the properties of RVNRL could be improved by proper selection of an accelerator. Finally, the IAEA decided to support the R&D on RVNRL at Takasaki. The following R&D were carried out in 1985 - 1989. Selection of NR latex to improve tensile strength Selection of accelerator to reduce required dose Selection of process factors to avoid inconsistency Selection of antioxidants to improve aging properties Biological safety test to find advantages of RVNRL As an accelerator n-butyl acrylate (n-BA) was selected by reason of its high accelerating efficiency, no residue in the final dipped products and tolerable price.
    [Show full text]
  • Vulcanization & Accelerators
    Vulcanization & Accelerators Vulcanization is a cross linking process in which individual molecules of rubber (polymer) are converted into a three dimensional network of interconnected (polymer) chains through chemical cross links(of sulfur). The vulcanization process was discovered in 1839 and the individuals responsible for this discovery were Charles Goodyear in USA and Thomas Hancock in England. Both discovered the use of Sulfur and White Lead as a vulcanization system for Natural Rubber. This discovery was a major technological breakthrough for the advancement of the world economy. Vulcanization of rubbers by sulfur alone is an extremely slow and inefficient process. The chemical reaction between sulfur and the Rubber Hydrocarbon occurs mainly at the C = C (double bonds) and each crosslink requires 40 to 55 sulphur atoms (in the absence of accelerator). The process takes around 6 hours at 140°C for completion, which is uneconomical by any production standards. The vulcanizates thus produced are extremely prone to oxidative degradation and do not possess adequate mechanical properties for practical rubber applications. These limitations were overcome through inventions of accelerators which subsequently became a part of rubber compounding formulations as well as subjects of further R&D. Following is the summary of events which led to the progress of ‘Accelerated Sulfur Vulcanization'. Event Year Progress - Discovery of Sulfur Vulcanization: Charles Goodyear. 1839 Vulcanizing Agent - Use of ammonia & aliphatic ammonium derivatives: Rowley. 1881 Acceleration need - Use of aniline as accelerator in USA & Germany: Oenslager. 1906 Accelerated Cure - Use of Piperidine accelerator- Germany. 1911 New Molecules - Use of aldehyde-amine & HMT as accelerators in USA & UK 1914-15 Amine Accelerators - Use of Zn-Alkyl Xanthates accelerators in Russia.
    [Show full text]
  • Silicone Rubber Fluid Resistance Guide
    Fluid Resistance Guide Performance Profiles for Silastic® brand Silicone and Fluorosilicone Rubber and XIAMETER® brand Silicone Rubber Contents Page Introduction noitcudortnI 2 This guide is intended to give you an idea of the performance profile of xednI sdiulF xednI 4 various classes of silicone rubbers when immersed in different fluids. ASTM and IRM Oils, Fuels, and Fluids 6 It's our hope that the information will save you the time and cost of MIL Specification Oils, Fuels, and Fluids 8 preliminary screening and feasibility tests. We recommend that you test Automotive Oils and Fluids 11 specific materials prior to use. Keep in mind that service conditions are Fuels 41 usually less severe than immersion tests. For instance, in actual service Hydraulic Fluids 51 the rubber is often only partly exposed or is subjected only to spills or Transformer and Instrument Oils 71 splashing. This means that a rubber that shows only fair results in a Specialty O ils, G reases, and Fluids 81 prolonged total immersion test will often perform quite adequately under Solvents 12 actual conditions. sdiulF enociliS sdiulF 32 Silicone Compounds and Greases 52 Types of Silastic and XIAMETER Food Products 62 Silicone Rubbers Water and Steam 82 Immersion test results refer to types of silicone rubber by Acids 29 their ASTM designation. The polymer classification described in Bases 30 ASTM D 1418 is based on the organic group side chains attached to the Salts 31 silicon-oxygen chain. If other groups are present, their initials are listed Other Chemicals 13 prior to the MQ designation: MQ indicates methyl groups, V indicates phenyl groups.
    [Show full text]
  • Reinforcement of Styrene Butadiene Rubber Employing Poly(Isobornyl Methacrylate) (PIBOMA) As High Tg Thermoplastic Polymer
    polymers Article Reinforcement of Styrene Butadiene Rubber Employing Poly(isobornyl methacrylate) (PIBOMA) as High Tg Thermoplastic Polymer Abdullah Gunaydin 1,2, Clément Mugemana 1 , Patrick Grysan 1, Carlos Eloy Federico 1 , Reiner Dieden 1 , Daniel F. Schmidt 1, Stephan Westermann 1, Marc Weydert 3 and Alexander S. Shaplov 1,* 1 Luxembourg Institute of Science and Technology (LIST), 5 Avenue des Hauts-Fourneaux, L-4362 Esch-sur-Alzette, Luxembourg; [email protected] (A.G.); [email protected] (C.M.); [email protected] (P.G.); [email protected] (C.E.F.); [email protected] (R.D.); [email protected] (D.F.S.); [email protected] (S.W.) 2 Department of Physics and Materials Science, University of Luxembourg, 2 Avenue de l’Université, L-4365 Esch-sur-Alzette, Luxembourg 3 Goodyear Innovation Center Luxembourg, L-7750 Colmar-Berg, Luxembourg; [email protected] * Correspondence: [email protected]; Tel.: +352-2758884579 Abstract: A set of poly(isobornyl methacrylate)s (PIBOMA) having molar mass in the range of 26,000–283,000 g mol−1 was prepared either via RAFT process or using free radical polymerization. ◦ These linear polymers demonstrated high glass transition temperatures (Tg up to 201 C) and thermal Citation: Gunaydin, A.; stability (T up to 230 ◦C). They were further applied as reinforcing agents in the preparation of the Mugemana, C.; Grysan, P.; onset Eloy Federico, C.; Dieden, R.; vulcanized rubber compositions based on poly(styrene butadiene rubber) (SBR). The influence of the Schmidt, D.F.; Westermann, S.; PIBOMA content and molar mass on the cure characteristics, rheological and mechanical properties of Weydert, M.; Shaplov, A.S.
    [Show full text]
  • Crosslink Density of Rubbers
    Characterisation of Crosslinks in Vulcanised Rubbers: From Simple to Advanced Techniques K.L. Mok* and A.H. Eng** *Malaysian Rubber Board, Paper Presenter **Malaysian Institute of Chemistry Copyright © 2017 by K.L. Mok and A.H. Eng 1 Rubber & Elastomer • Rubbery: 1) Sufficient long chain; 2) Flexible molecules with noncollinear single bonds that allow segmental rotations along the backbone; 3) Non crystalline at service temperature • Rubber vs Elastomer: Rubber commonly refers to elastic materials that requires vulcanisation before they can be used in the products. However, there are elastic polymers that do not require vulcanisation such as polyurethane (PU), styrene- isoprene (SIS) copolymer. These elastic materials are classified under elastomer, which normally also includes rubbers. • Unvulcanised Rubbers: Unvulcanised rubbers are normally weak when put under stress during use. With very few exceptions, such as rubber glues almost all rubber products require vulcanisation to provide the required strength for a longer design life. • Elastomers: Polyurethane (PU), styrene-isoprene (SIS) copolymer, do not require vulcanisation to have good strength properties as they contain the hard segment Copyrightwhich © 2017 by K.L.is Mok good and A.H. Engfor strength and the soft segment good elasticity properties. 2 Rubber Vulcanisation & Crosslink Density • Vulcanization or vulcanisation: A reaction that leads to the formation of inter-molecular bonding among the unsaturated rubber molecules with 3 dimensional network such that the mechanical properties such as tensile strength is enhanced. The vulcanising agent originally referred to was elemental sulfur. Later, sulfur donor was included. It now also includes non sulfur systems such as metal oxide and peroxides.
    [Show full text]
  • Tensile Properties of Pre-Vulcanised Natural Rubber Latex Films Via Hybrid Radiation and Peroxide Vulcanisations
    ASM Sci. J., 11(2), 67-75 Tensile Properties of Pre-vulcanised Natural Rubber Latex Films via Hybrid Radiation and Peroxide Vulcanisations Sofian Ibrahim1;2∗, Chai Chee Keong1, Chantara Thevy Ratnam1 and Khairiah Badri2 1Malaysian Nuclear Agency, 43000 Kajang, Selangor, Malaysia 2School of Chemical Science and Food Technology, Faculty of Science and Technology, Universiti Kebangsaan Malaysia, 43600 UKM Bangi, Selangor, Malaysia Radiation pre-vulcanised natural rubber latex (RVNRL) prepared by using gamma irradia- tion technique has many advantages over the conventionally prepared sulphur pre-vulcanised natural rubber latex (SPVL). Despite the fact that many potential latex dipped products can be made from RVNRL, little effort was made to fully commercialise the products because of the inferior strength of RVNRL products compared to SPVL products. An attempt was made to improve the tensile strength of RVNRL by combining both radiation and peroxide vulcanisation in order to ensure that the products will not tear or fail, and has sufficient stretch. Hexanediol diacrylate (HDDA) plays the main role as sensitizer during radiation vulcanisation and tert-butyl hydroperoxide (t-BHPO) as the co-sensitizer in peroxide vul- canisation. Pre-vulcanised natural rubber latex dipped films via hybrid radiation and perox- idation vulcanisations obtained showed tensile strength of 26.7 MPa, an increment of more than 15% compared to controlled film (22.5 MPa). Besides, the crosslink percentage of the rubber films also showed around 5% increment from 90.7% to 95.6%. Keywords: RVNRL, vulcanisation, irradiation, latex I. INTRODUCTION the expansion of this positive sales performance. One of the major contributors to Malaysia's national income is rubber and latex-based prod- ucts.
    [Show full text]
  • Global Automotive Components and Suppliers Expo 16-18 June 2015 Stuttgart, Germany
    GACS 2015 Report Global Automotive Components and Suppliers Expo 16-18 June 2015 Stuttgart, Germany 1.0 Introduction Global Automotive Components and Suppliers (GACS) Expo is the only show in Europe dedicated to showcasing automotive components and component suppliers for the OEM segment. Companies invited to exhibit at GACS 2015 comprised of automotive Tier 1, 2 and 3 suppliers. GACS 2015 was organized according to three main product categories namely Engine Expo, Automotive Interiors Expo and Automotive Testing Expo concurrently. These annual shows are organized by UKIP Media & Event Ltd. Global Automotive Components and Suppliers Expo (GACS2015) Date 16-18 June 2015 Venue Messe Stuttgart, Germany Organiser UKIP Media & Event Ltd Number of Malaysian Exhibitors 5 exhibitors with MREPC Exhibit Products Rubber Automotive Components – Gaskets, seals, O-rings, grommets, bushings, rubber metal bonded parts, weatherstrips, wiper blades, industrial gloves Table 1: Summary information of GACS 2015 Page | 1 GACS 2015 Report 2.0 Participation Info MREPC officers together with Malaysian manufacturers at MREPC Pavilion 2.1 Participation of MREPC in Exhibition MREPC participated in GACS 2015 for the first time with five rubber products manufacturers under MREPC Pavilion. MREPC and the Malaysian manufacturers promoted a wide range of rubber automotive components, including gaskets, O-rings, grommets, weatherstrips, wiper blades, rubber metal bonded parts such as engine mounts and exhaust hangers as well as industrial gloves. Companies Products 1. COOLTEC INDUSTRIES SDN BHD Rubber molded parts, O-rings, grommet, seals 2. KOSSAN RUBBER INDUSTRIES BHD Rubber automotive components 3. KUMPULAN JEBCO (M) SDN BHD Chasis & suspension parts – engine mounting system, bushes, dampers and strut mount suspension 4.
    [Show full text]
  • Silicone Materials for Automobiles
    Silicone Materials for Automobiles CO NTENTS Silicone Fluids and Secondary Products for Automotive Applications P2 Silicone Elastomers for Automotive Applications P4 Silicone Elastomers for Automotive Applications — Application to Airbags — P6 Thermal Interface Materials for Automotive Applications P8 LIMS Materials for Automobiles P10 Silicone Materials for Automobiles Silicone Fluids and Secondary Products for Automotive Applications The auto industry has been unremitting in its pursuit of development of automotive technologies to improve safety, comfort, and fuel efficiency. Silicones have frequently been used as automotive materials, and Shin-Etsu has been using the latest technologies to develop products to meet evolving needs. In these pages we will present examples of some typical applications, mainly featuring silicone fluids and their secondary products. Introduction adding heat-resistance improvers to dimethyl tires wore out quickly and were therefore not In recent years, automakers have taken silicone fluid. They are used as fan coupling practical. Later, KBE-846 was developed by efforts to make safer vehicles that are more fluids and in other torque transmission researchers who realized that sulfide silane comfortable and eco-friendly by adding car applications, and as a heating medium in could be used to improve the wear life of room temperature it forms a uniform film navigation systems, sensors and other automobiles (Table 1). silica-compounded tires. with exceptional water repellency, oil features, while making vehicles lighter and repellency, release properties, and antifouling more fuel-efficient. In this article, we will 1-3. Modifier for synthetic leather seat materials 1-6. Plastic & rubber modifiers properties (Table 2). discuss some of the places where silicone Double end-capped carbinol-modified fluids Master pellets and acrylic silicone powders fluids and their secondary products Single end-capped diol-modified fluids Silicone master pellets are plastics compounded 2-2.
    [Show full text]
  • United States Patent (19) (11) 4,161,455 Wason 45) Jul
    United States Patent (19) (11) 4,161,455 Wason 45) Jul. 17, 1979 (54) NOVEL PRECIPITATED SILICEOUS 57 ABSTRACT PRODUCTS AND METHODS FORTHER A method for producing a precipitated silicon dioxide USE AND PRODUCTION having a new combination of physical and chemical Satish K. Wason, Havre de Grace, properties is disclosed. The pigments are produced by 75 Inventor: acidulating a solution of an alkali metal silicate with an Md. acid under controlled precipitation conditions. The 73) Assignee: J. M. Huber Corporation, Locust, aqueous reaction medium comprising the precipitated N.J. silica is then post-conditioned by introducing a second silicate solution into the reaction vessel and thereafter 21) Appl. No.: 911,003 adding additional acid to react with the said second 22 Filed: May 30, 1978 silicate solution. By varying the amount of the silicate employed in the post-conditioning step, a product is Related U.S. Application Data obtained which has a unique combination of physical and chemical properties including reduced wet cake 60) Continuation of Ser. No. 796,913, is a division of Ser. moisture content, high surface areas and oil absorptions, No. 557,707, Mar. 12, 1975, abandoned. improved surface activity, friability, wetting character (51) Int. Cl’............................................... C11D 3/08 istics, and the like. The product has particular utility for (52) U.S. C. ............................... 252/174.25; 252/135; use as a rubber reinforcing agent because of its in 252/140; 106/288 B; 423/339 creased surface activity and oil absorption, etc. The (58) Field of Search ......................... 252/89, 135, 140; product, however, may be used in paints, paper, deter 423/339; 106/288B gents, dentifrice compositions, molecular sieves, and polymeric compositions.
    [Show full text]
  • Airfield Maintenance Activities at North Carolina Airports
    STATE OF NORTH CAROLINA DEPARTMENT OF TRANSPORTATION PAT MCCRORY ANTHONY J. TATA GOVERNOR SECRETARY November 17, 2014 NOTICE TO PROSPECTIVE BIDDERS Subject: Invitation to attend a Mandatory Pre-Bid Conference Airfield Maintenance Activities at North Carolina Airports The North Carolina Department of Transportation – Division of Aviation is requesting bids for a purchase order contract involving airfield maintenance activities at North Carolina airports. The contract includes full depth asphalt patching, crack sealing, concrete and asphalt pavement repair, joint sealing, sealing/rejuvenation, rubber removal, airfield painting, marking removal, pressure washing, micro-surfacing, polyurethane foam systems, seeding and mulching, and other additional items. A Contract will be awarded to the three lowest responsible Bidders. The Contractor is to furnish labor, materials, equipment and traffic control and be available to perform work at any airport within North Carolina. A Mandatory Pre-Bid Conference will be held at the NCDOT – Division of Aviation building ( 1050 Meridian Drive, RDU Airport, NC ) in the second floor conference room on November 21, 2014 at 10:30 A.M. Contractors may call-in as an alternative to attending in-person. A call-in number and electronic copy of the Contract Proposal will be available at https://connect.ncdot.gov/letting/Pages/Aviation.aspx The NCDOT, in accordance with the provisions of Title VI of the Civil Rights of 1964 (78 Stat.252) and the Regulations of the Department of Transportation (49 C.F.R., Part 21), issued pursuant to such act, hereby notifies all bidders that it will affirmatively insure that the contract entered into pursuant to this notice will be awarded to the lowest responsible bidders without discrimination on the grounds of sex, race, color, or national origin.
    [Show full text]
  • TECH Tire Repair Chemicals for Best Results, Tech Nail Hole Repairs Should Be Used with These Tech Chemical Products
    epair orld Leader in Tire R The W TECH INTERNATIONAL TIRE REPAIR CATALOG www.techtirerepairs.com TRUST TECH Table of Contents TIRE REPAIR PRODUCTS & REPAIR CHARTS Pages 3 – 25 Uni-Seal Ultra Repairs . 3 – 4 Uni-Seal 2-piece Stems & Repairs . 5 – 7 Centech Radial Repairs for Shoulder Injuries . 6 Radial Section Repairs . 8 – 10 Bias Ply Tire Repairs. 11 – 13 Radial OTR Repairs . 14 – 18 Tech Off Road (TOR) Bias Repairs . 19 – 21 Repair Rubber and Chemicals . 22 – 24 2-Way Tube Repairs & All-Purpose Repairs. 25 NAILHOLE INSERTS & REPAIR KITS Pages 26 – 28 Permacure Repairs & Kits . 26 Flow-Seal Inserts & Self-Vulcanizing Repairs . 27 Repair Kits . 28 CABINETS & REPAIR TOOLS Pages 29 – 31 Cabinets & Tool Stations. 29 Hand Tools and Knives, Extruder Guns . 30 – 31 & Branding Irons PRODUCT PAGES Pages 32 – 33 Tire Inspection & Marking Tools . 32 – 33 Anti-Seize Compound. 33 SAFETY, PROTECTION & HAND CLEANING PRODUCTS Page 34 AIR TOOLS & ACCESSORIES Pages 35 – 41 Drills, Buffers & Air Hammers . 35 Cutters, Burrs, Grinding Stones, Wheels & Rasps . 36 – 39, 41 Wire Brushes, Buffing Stones. 40 Gouges & Cut-Off Wheels . 41 MONAFLEX VULCANIZING EQUIPMENT & SPOTTERS Pages 42 – 47 TIRE & WHEEL SERVICE LUBRICANTS Pages 48 – 49 TIRE IDENTIFICATION Page 50 Radio Frequency Identification Data Tags (RFID) . 50 Tire Identification Logos . 50 TIRE SPREADERS Page 51 Tech International Tire Repair Catalog TIRE BALANCING & SEALANT PRODUCTS Pages 52 – 53 Balance Pads, Tools & Chemicals . 52 Balancing Compound & Tire Sealant . 53 TPMS SOLUTIONS Pages 54 – 57 VALVES & VALVE HARDWARE Pages 58 – 73 AIR SERVICE PRODUCTS Pages 74 – 78 Gauges . 74 Automatic Tire Inflators. 76 Chucks & Chuck Repair Kits.
    [Show full text]
  • United States Patent (19) (11) 4,172,115 Hulme (45) Oct
    United States Patent (19) (11) 4,172,115 Hulme (45) Oct. 23, 1979 (54) PREPARATION AND USE OF SULFUR 56 References Cited TETRACHELORIDE DERVATIVES OF THE FORMULA (SA3+.MX- U.S.S. PAPATEN T DO CUMENTS ,923,094 8/1933 Jenness ................................. 423/467 (75) Inventor: Roger Hulme, Somerville, N.J. 2,992,0732,883,267 4/19597/1961 TullockMuetterties ....... .......................... ... 42.3/469423/469 3,000,694 9/1961 Smith et al. .......................... 423/467 73) Assignee: Exxon Research & Engineering Co., 3,054,661 9/1962 Muetterties .......................... 423/469 Florham Park, N.J. 3,848,064. 1 1/1974 Becher et al. ........................ 423/469 (21) Appl. No.: 929,285 FOREIGNG PATENTT DOCUMENTSD MENT 805860 12A1958 United Kingdom ...................., 423/469 22 Filed: Jul. 31, 1978 Primary Examiner-O. R. Vertiz Assistant Examiner-Gary P. Straub Related U.S. Application Data Attorney, , Agent, or Firm-JFirm-John W. DitstSler 63 Continuation-in-part of Ser. No. 807,522, Jun. 17, 1977, 57 ABSTRACT abandoned, which is a continuation-in-part of Ser. No. Sulfur tetrachloride derivatives are prepared by react 628,590, Nov. 4, 1975, abandoned. ing suitable sulfur-containing compounds in hydrogen fluoride with a gas containing molecular chlorine in the 51) Int. Cl. ....................... C01B 17/45; CO1B 17/00 presence of one or more acidic halides. Such derivatives 52) U.S. Cl. .................................... 423/276; 423/292; can be used to remove water from its solutions in hydro 423/300; 423/462; 423/466; 423/468 gen fluoride. 58) Field of Search ................... 423/467, 469, 561 R, 423/564, 511; 423/468,292, 276, 300, 462, 466 18 Claims, No Drawings 4,172,115 1 2 ride, said sulfur tetrachloride derivatives react with PREPARATION AND USE OF SULFUR water in either system to produce gaseous thionyl fluo TETRACHELORIDE DERVATIVES OF THE ride (SOF2) and HCl.
    [Show full text]