Bagaimana Du Pont Mengubah Dunia Kamis (15/9)
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Arxiv:1810.10187V3 [Physics.Ins-Det] 10 Jan 2019 to Minimize Longitudinal Heat flow While Satisfying One’S Electrical Impedance and Shape (E.G
Properties of selected structural and flat flexible cabling materials for low temperature applications M. Daala,∗, N. Zobrista, N. Kellarisd,e, B. Sadouletb, M. Robertsonc aDepartment of Physics, University of California, Santa Barbara CA 93106-9530 bDepartment of Physics, University of California, Berkeley CA 94720-7300 cDepartment of Physics, University of California, Davis CA 95616-8677 dDepartment of Mechanical Engineering, University of Colorado Boulder, 80309-0427 eMaterials Science and Engineering Program, University of Colorado, Boulder, 80309-0596 Abstract We present measurements of the low temperature thermal conductivity for materials useful in the construction of cryogenic supports for scientific instrumentation and in the fabrication of flat flexible cryogenic cabling. The materials we measure have relatively low thermal conductivity. We present a method for measuring the heat transfer coefficient of flat cabling and show, using an example, that the thermal conductivity of a flex cable is reasonably well predicted by composing the thermal conductivities of its constituent material layers. Room temperature physical and mechanical data is given for the materials studied, as well as an overview of relevant materials science and manufacturing details. Materials include Timet Ti 15-3 and Ti 21S, Materion alloy vit105 (LM105) in amorphous state, ATI Metals Nb-47Ti, Johnson Matthey nitinol (NiTi), Mersen graphite grade 2020, DuPont Pyralux coverlay and Vespel SCP-5050, and Fralock Cirlex polyimide sheets. All data is in the temperature range 0:05 to 2 K, and up to 5 K for SCP-5050. Keywords: Thermal conductivity, Heat transfer coefficient, Cryogenic, Structural materials, Support structures, Flat flexible cables, Superconducting cables, Low temperature, Titanium alloys, Bulk metallic glass, vit105, LM105, Cirlex, Vespel, Pyralux, NbTi, Ti 15-3-3-3, Ti 21S, Nitinol, NiTi, Transition Temperature 1. -
DUPONT DATA BOOK SCIENCE-BASED SOLUTIONS Dupont Investor Relations Contents 1 Dupont Overview
DUPONT DATA BOOK SCIENCE-BASED SOLUTIONS DuPont Investor Relations Contents 1 DuPont Overview 2 Corporate Financial Data Consolidated Income Statements Greg Friedman Tim Johnson Jennifer Driscoll Consolidated Balance Sheets Vice President Director Director Consolidated Statements of Cash Flows (302) 999-5504 (515) 535-2177 (302) 999-5510 6 DuPont Science & Technology 8 Business Segments Agriculture Electronics & Communications Industrial Biosciences Nutrition & Health Performance Materials Ann Giancristoforo Pat Esham Manager Specialist Safety & Protection (302) 999-5511 (302) 999-5513 20 Corporate Financial Data Segment Information The DuPont Data Book has been prepared to assist financial analysts, portfolio managers and others in Selected Additional Data understanding and evaluating the company. This book presents graphics, tabular and other statistical data about the consolidated company and its business segments. Inside Back Cover Forward-Looking Statements Board of Directors and This Data Book contains forward-looking statements which may be identified by their use of words like “plans,” “expects,” “will,” “believes,” “intends,” “estimates,” “anticipates” or other words of similar meaning. All DuPont Senior Leadership statements that address expectations or projections about the future, including statements about the company’s strategy for growth, product development, regulatory approval, market position, anticipated benefits of recent acquisitions, timing of anticipated benefits from restructuring actions, outcome of contingencies, such as litigation and environmental matters, expenditures and financial results, are forward looking statements. Forward-looking statements are not guarantees of future performance and are based on certain assumptions and expectations of future events which may not be realized. Forward-looking statements also involve risks and uncertainties, many of which are beyond the company’s control. -
Outgassing of Technical Polymers PEEK, Kapton, Vespel & Mylar
Ivo Wevers Outgassing of Technical Polymers PEEK, Kapton, Vespel & Mylar Vacuum, Surfaces & Coatings Group Technology Department Outline • Part 1: Introduction • Polymers in vacuum technology • Outgassing of water : metallic surface vs polymer • Part 2: Outgassing at Room Temperature • Outgassing measurements of PEEK, Kapton, Mylar and Vespel samples • Fitting with 2-step and 3-step models • Diffusion coefficient, moisture content and decay time constant • Part 3: Attenuation of Polymers Outgassing • Effects of bakeout and venting on pump-down curves • Effects of desication with silica gel • Conclusions & Future Vacuum, Surfaces & Coatings Group Ivo Wevers ARIES 2021 Technology Department 2 Part 1: Introduction • Polymers in vacuum technology • Outgassing of water : metallic surface vs polymer Vacuum, Surfaces & Coatings Group Ivo Wevers ARIES 2021 Technology Department 3 Polymers in vacuum technology Polymers are sometimes the only option as seal/insulator PEEK, Kapton and Vespel -> bakeout temperatures of 150-200C° Vacuum, Surfaces & Coatings Group Ivo Wevers ARIES 2021 Technology Department 4 Polymers in vacuum technology Polymers are sometimes the only option as seal/insulator PEEK, Kapton and Vespel -> bakeout temperatures of 150-200C° Guarantee a certain beam lifetime or certain operation conditions Outgassing limit (maximum pressure to be reached in 24 hours) is defined for each machine AND the residual gas analysis free of contaminants Acceptance test prior to installation: - Pumpdown will define the outgassing rate and variation -
(12) United States Patent (10) Patent No.: US 8,932,565 B2 Ilekti Et Al
US008932565B2 (12) United States Patent (10) Patent No.: US 8,932,565 B2 Ilekti et al. (45) Date of Patent: Jan. 13, 2015 (54) THERMAL COSMETIC TREATMENT 3.65 A 1 & E. E. 1 PROCESS USING ASEM-CRYSTALLINE 5,082,706- - - A 1/1992 Tangneyolfgruber et al. POLYMER 5,110,890 A 5/1992 Butler 5,156,911 A 10, 1992 Stewart (75) Inventors: Philippe Ilekti, Maison-Alfort (FR): 5,171,096 A 12/1992 Perrotti Sylvie Boulogne, L'hays les Roses (FR) 5,248,7395,221,534 A 9/19936/1993 SchmidtDesLauriers et al. et al. 5,302,685 A 4, 1994 Tsumura et al. (73) Assignee: L'Oreal, Paris (FR) 5.319,040 A 6/1994 Wengrovius et al. 5,500,209 A 3, 1996 Mendolia et al. (*) Notice: Subject to any disclaimer, the term of this 5,519,063 A 5/1996 Mondet et al. patent is extended or adjusted under 35 5,736,125 A 4, 1998 Morawsky et al. U.S.C. 154(b) by 312 days 5,750,723 A 5, 1998 Eldin et al. M YW- y yS. 5,783,657. A 7/1998 Pavlin et al. 5,817,302 A 10, 1998 Berthiaume et al. (21) Appl. No.: 12/988,465 5,847,156 A 12/1998 Eldin et al. 5,874,069 A 2f1999 Mendolia et al. (22) PCT Filed: Jul. 22, 2009 5,919,441 A 7/1999 Mendolia et al. 5,981,680 A 11, 1999 Petroffetal. 5.998,547 A 12/1999 Hohner (86). PCT No.: PCT/FR2009/051474 5.998.570 A 12/1999 Pavlin et al. -
Dupont™ Kalrez® KVSP™ Valve Stem Packing Technical Guidelines and Design to Improve Process Control and Minimize Fugitive Emissions
DuPont™ Kalrez® KVSP™ Valve Stem Packing Technical Guidelines and Design to Improve Process Control and Minimize Fugitive Emissions Technical Information—Rev. 4, March 2019 Introduction DuPont™ Kalrez® Valve Stem Packing (KVSP™) systems can help to significantly reduce fugitive emissions and improve process control through the innovative use of Kalrez® perfluoroelastomer parts combined with other proven packing materials. Graphite packing systems can meet fugitive emissions requirements but restrict valve movement, leading to inconsistent process control. Polytetrafluoroethylene (PTFE) has excellent process control response characteristics but cannot contain fugitive emissions when temperature cycling is involved in conjunction with operational cycling. Kalrez® packing systems overcome these deficiencies, as well as reducing leak rates to near-bellows performance. Kalrez® is chemically an elastomeric PTFE derived from tetrafluoroethylene (TFE), the same base monomer. It provides a unique combination of chemical resistance and inertness like PTFE, but with a higher temperature service limit and no tendency to cold flow. The chemical structure remains cross-linked and stable at high temperatures and does not move under load or deformation. Its resiliency and memory provide improved sealing for control valve stems. Using Kalrez® V-rings backed up with more rigid components of carbon fiber-reinforced PTFE (DuPont™ Vespel® CR-6100) has proven to be a major advancement in improving process control and reducing leakage to less than 1 ppm, or below the plant’s background level. Kalrez® perfluoroelastomer packing systems increase a valve’s ability to react quickly and smoothly to process changes (Figure 1). Kalrez® KVSP™ reduces process control variability to the control system’s capability, resulting in improvements to both yield and product quality on specification. -
Dupont Company Engineering Department Photographs 1982.300
DuPont Company Engineering Department photographs 1982.300 This finding aid was produced using ArchivesSpace on September 14, 2021. Description is written in: English. Describing Archives: A Content Standard Audiovisual Collections PO Box 3630 Wilmington, Delaware 19807 [email protected] URL: http://www.hagley.org/library DuPont Company Engineering Department photographs 1982.300 Table of Contents Summary Information .................................................................................................................................... 8 Historical Note ............................................................................................................................................... 8 Scope and Content ......................................................................................................................................... 9 Administrative Information .......................................................................................................................... 11 Controlled Access Headings ........................................................................................................................ 11 Collection Inventory ..................................................................................................................................... 11 Alabama Ordnance Works ........................................................................................................................ 11 Argentine Rayon Construction ................................................................................................................. -
Application of Polyimide Actuator Rod Seals
(NASA-CR- 120878) APPLICATION OF POLYIiIDE N72-245306 ACTUATOR ROD SEALS AoH. Hatermann, et al (Boeing Co,, Seattle, Wash,) 30 Jan. 1972 177 p CSCL 11A Unclas G3/15 28867 I CR-I 20878 D6-54351 A A~ APPLICATION OF POLYIMIDE ACTUATOR ROD SEALS by A. W. Waterman, B. F. Gay, E. D. Robinson, S. K. Srinath, W. G. Nelson THE BOEING COMPANY prepared for NATIONAL AERONAUTICS AND SPACE ADMINISTRATION NASA Lewis Research Center Contract NAS3-14317 ! William F. Hady, Project Manager 1. Report No. 2. Government Accession No. 3. Recipient's Catalog No. CR- 120878 4. Title and Subtitle 5. Report Date APPLICATION OF POLYIMIDE ACTUATOR ROD SEALS January 30, 1972 6. Performing Organization Code 7. Author(s) A. W. Waterman, B. F. Gay, E. D. Robinson, 8. Performing Organization Report No. S. K. Srinath, and W. G. Nelson D6-54351 9. Performing Organization Name and Address 10. Work Unit No. YON 1347 The Boeing Company, Commercial Airplane Group 11. Contractor Grant No. P.O. Box 3707, Seattle, Washington 98124 NAS3-14317 13. Type of Report and Period Covered 12. Sponsoring Agency Name and Address CONTRACTOR REPORT National Aeronautics and Space Administration 7/1/70-1/30/72 Washington, D.C. 20546 14. Sponsoring Agency Code 15. Supplementary Notes Project Manager: W. F. Hady, Fluid System Component Division, NASA Lewis Research Center, Cleveland, Ohio 16. Abstract Development of polyimide two-stage hydraulic actuator rod seals for application in high-performance aircraft was accomplished. The significant portion of the effort was concentrated on optimization of the chevron and K-section second-stage seal geometries to satisfy the requirements for operation at 4500K (3500F) with dynamic pressure loads varying between 1.379 x 106 N/m2 (200 psig) steady-state and 1.043 x 107 N/m2 (1500 psig) impulse cycling. -
Dupont™ Chemical Guidebook
Chemical manufacturing Personal protective solutions for chemical manufacturing industry applications Because everyone Our brands Nomex® has someone ™ ® DuPont Nomex offers a tested and proven portfolio of protective solutions that continues to meet or exceed global standards for heat, flame and depending on them * electric arc flash protection. to get home safely Kevlar® Gloves made with DuPont™ Kevlar® offer industry-leading cut protection, built-in DuPont is more focused than ever on providing heat and flame resistance and electric arc flash protection, while providing the innovative protection solutions and expert technical dexterity and comfort workers want. support tailored to meet the specific needs of workers in chemical manufacturing industries Tyvek® around the world. DuPont™ Tyvek® garments provide workers with superior protection from small-sized hazardous particles, including lead, asbestos and mold. And because Because their safety is our business, workers in the protection is built into the fabric itself, there are no films or laminates to chemical manufacturing industries can rely on the abrade or wear away. world-class people, products and innovation that have made DuPont a trusted partner in personal protection. Tychem® DuPont™ Tychem® garments deliver durable protection and offer strong With a wide range of industry-leading personal permeation barrier against a wide range of chemicals. Together with Tychem® protective equipment (PPE) solutions and a global gloves and tape, they create the Tychem® Trusted Chemical System™ network of PPE specialists, technical experts and for complete protection. manufacturing, DuPont is uniquely suited to provide the protection and comfort every worker deserves to face a range of workplace hazards with confidence. -
Iso 14001:2015
Certificate of Approval This is to certify that the Management System of: E. I. du Pont de Nemours and Company 974 Centre Road, Wilmington, DE, 19805, United States has been approved by LRQA to the following standards: ISO 14001:2015 Chris Koci Issued By: Lloyd's Register Quality Assurance, Inc. This certificate is valid only in association with the certificate schedule bearing the same number on which the locations applicable to this approval are listed. Current Issue Date: 21 January 2018 Original Approvals: Expiry Date: 20 January 2021 ISO 14001 – 21 January 2009 Certificate Identity Number: 10052905 Approval Number(s): ISO 14001 – 0011717 The scope of this approval is applicable to: Manufacture of Science-Based Products for Agriculture, Nutrition, Electronics, Communications, Safety and Protection, Home and Construction, Transportation and Apparel Markets. Lloyd's Register Group Limited, its affiliates and subsidiaries, including Lloyd's Register Quality Assurance Limited (LRQA), and their respective officers, employees or agents are, individually and collectively, referred to in this clause as 'Lloyd's Register'. Lloyd's Register assumes no responsibility and shall not be liable to any person for any loss, damage or expense caused by reliance on the information or advice in this document or howsoever provided, unless that person has signed a contract with the relevant Lloyd's Register entity for the provision of this information or advice and in that case any responsibility or liability is exclusively on the terms and conditions set out in that contract. Issued By: Lloyd's Register Quality Assurance, Inc., 1330 Enclave Parkway, Suite 200, Houston, Texas 77077, United States Page 1 of 15 Certificate Schedule Certificate Identity Number: 10052905 Location Activities Global Headquarters ISO 14001:2015 974 Centre Road, Wilmington, DE, 19805, Headquarters Activities in Support of the Global United States Manufacturing Sites and EMS Oversight. -
2 0 0 1 a N N U a L R E P O
2001 ANNUAL REPORT DuPont at 200 In 2002, DuPont celebrates its 200th anniversary. The company that began as a small, family firm on the banks of Delaware’s Brandywine River is today a global enterprise operating in 70 countries around the world. From a manufacturer of one main product – black powder for guns and blasting – DuPont grew through a remarkable series of scientific leaps into a supplier of some of the world’s most advanced materials, services and technologies. Much of what we take for granted in the look, feel, and utility of modern life was brought to the marketplace as a result of DuPont discoveries, the genius of DuPont scientists and engineers, and the hard work of DuPont employees in plants and offices, year in and year out. Along the way, there have been some exceptional constants. The company’s core values of safety, health and the environment, ethics, and respect for people have evolved to meet the challenges and opportunities of each era, but as they are lived today they would be easily recognizable to our founder. The central role of science as the means for gaining competitive advantage and creating value for customers and shareholders has been consistent. It would be familiar to any employee plucked at random from any decade of the company’s existence. Yet nothing has contributed more to the success of DuPont than its ability to transform itself in order to grow. Whether moving into high explosives in the latter 19th century, into chemicals and polymers in the 20th century, or into biotechnology and other integrated sciences today, DuPont has always embraced change as a means to grow. -
Wallace Hume Carothers Letters to Frances Gelvin Spencer 2435
Wallace Hume Carothers letters to Frances Gelvin Spencer 2435 This finding aid was produced using ArchivesSpace on September 26, 2021. Description is written in: English. Describing Archives: A Content Standard Manuscripts and Archives PO Box 3630 Wilmington, Delaware 19807 [email protected] URL: http://www.hagley.org/library Wallace Hume Carothers letters to Frances Gelvin Spencer 2435 Table of Contents Summary Information .................................................................................................................................... 3 Biographical Note .......................................................................................................................................... 3 Scope and Contents ........................................................................................................................................ 4 Administrative Information ............................................................................................................................ 4 Related Materials ........................................................................................................................................... 5 Controlled Access Headings .......................................................................................................................... 5 - Page 2 - Wallace Hume Carothers letters to Frances Gelvin Spencer 2435 Summary Information Repository: Manuscripts and Archives Creator - crp: Carothers, Wallace Hume, 1896-1937 Creator - rcp: Spencer, Frances -
(12) Patent Application Publication (10) Pub. No.: US 2010/0197805 A1 CASSIN (43) Pub
US 20100 197805A1 (19) United States (12) Patent Application Publication (10) Pub. No.: US 2010/0197805 A1 CASSIN (43) Pub. Date: Aug. 5, 2010 (54) COMPOSITION FOR IMPROVING THE (30) Foreign Application Priority Data SURFACE APPEARANCE OF THE SKN Jan. 27, 2009 (FR) ...................................... O95O491 (75) Inventor: Guillaume CASSIN, Villebon Sur Publication Classification Yvette (FR) (51) Int. Cl. A6II 47/30 (2006.01) Correspondence Address: A61O 19/00 (2006.01) NEUSTADT,OBLON, SPIVAK, L.L.P. MCCLELLAND MAIER & (52)52) U.S. Cl.C ..................................................... 514/772.1 194O DUKE STREET (57) ABSTRACT ALEXANDRIA, VA 22314 (US) The present invention relates to a cosmetic composition in the form of a paste, containing, in a physiologically acceptable (73) Assignee: LOREAL, Paris (FR) medium, at least 10% by weight, relative to its total weight, of filler(s), at least one silicone polyamide block copolymer (21) Appl. No.: 12/694,345 (PSPA) and at least one wax having a starting melting point of greater than or equal to 50° C. The present invention also (22) Filed: Jan. 27, 2010 relates to a cosmetic treatment method for improving the 9 Surface appearance of the skin, and in particular for reducing Related U.S. Application Data the visible and/or tactile irregularities of the skin, for instance the cutaneous microrelief, comprising at least the application (60) Provisional application No. 61/152,976, filed on Feb. of at least one composition as defined above to skin exhibiting 17, 2009. said irregularities. US 2010/O 197805 A1 Aug. 5, 2010 COMPOSITION FOR IMPROVING THE relative to its total weight, of filler(s), a silicone polyamide SURFACE APPEARANCE OF THE SKN block copolymer (PSPA) and at least one wax having a start ing melting point of greater than or equal to 50° C.