( 12 ) United States Patent

US010196535B2 (12 ) United States Patent (10 ) Patent No. : US 10 , 196 , 535 B2 Ledford et al. ( 45 ) Date of Patent: * Feb . 5 , 2019 ( 54 ) LOW VOC ADHESION PRETREATING AND (51 ) Int. Cl. PAINT ADDITIVE COMPOSITIONS , C09D 133 / 00 ( 2006 .01 ) PRETREATING AND PAINT COMPOSITIONS C09D 5 /00 ( 2006 . 01) THEREFROM AND METHODS OF MAKING C09D 5 /02 (2006 . 01) AND USING SAME U . S . CI. CPC . .. C09D 133/ 00 ( 2013. 01 ) ; C09D 5 / 002 (71 ) Applicant: Packaging Service Co ., Inc ., Pearland , ( 2013 .01 ) ; C09D 5 /022 (2013 .01 ) TX (US ) (58 ) Field of Classification Search (72 ) Inventors : John S . Ledford , Pearland , TX (US ); CPC . .. C08D 133 /00 ; C08D 5 / 002 ; C08D 5 /022 ; C . Johnson , Pearland , TX (US ) ; CO9D 133 /00 ; CO9D 5 /002 ; CO9D 5 /022 Amber Livesey , Pearland , TX (US ) ; USPC . 524 / 1 Lynn Place , Pearland , TX (US ) ; T . J . See application file for complete search history . Minor, Pearland , TX (US ) ; Jason Olson , Pearland , TX (US ) ( 56 ) References Cited ( 73 ) Assignee : PACKAGING SERVICE CO , INC . , U . S . PATENT DOCUMENTS Houston , TX (US ) 6 , 303, 199 B1 * 10 /2001 Takada . C08J 7 /047 428 / 34 . 8 ( * ) Notice: Subject to any disclaimer , the term of this 2006 / 0099429 A1 * 5 / 2006 DomesIES . CO9D 4 / 00 patent is extended or adjusted under 35 428 / 447 U . S . C . 154 (b ) by 0 days . * cited by examiner This patent is subject to a terminal dis claimer. Primary Examiner - Michael Bernshteyn ( 74 ) Attorney , Agent, or Firm — Robert W Strozier (21 ) Appl. No. : 15/ 615 ,730 (57 ) ABSTRACT (22 ) Filed : Jun . 6 , 2017 Surface pretreating additive compositions , surface pretreat ing compositions therefrom , surface adhesion promoting (65 ) Prior Publication Data compositions, and paint compositions therefrom including US 2018 /0155570 A1 Jun . 7 , 2018 an adhesion promoter system , a surfactant system , a solvent system , a solid system , a drying agent system , a crosslinking Related U . S . Application Data agent system , a biocide system , a UV stabilizer system , an abrasion resistance system , a wetting system , a defoaming (63 ) Continuation of application No . 14 /605 , 248 , filed on system , and / or a paint additive system and to methods for Jan . 26 , 2015 , now Pat. No. 9 , 994 ,727 . making and using the compositions. (60 ) Provisional application No. 61/ 931 , 517 , filed on Jan . 24 , 2014 . 22 Claims, No Drawings US 10 , 196 , 535 B2 LOW VOC ADHESION PRETREATING AND and plastic surfaces . For example , U . S . Pat. No . 8 ,076 ,414 PAINT ADDITIVE COMPOSITIONS , disclosed a solvent based blend of a polyurethane , an acrylic PRETREATING AND PAINT COMPOSITIONS resin , an aromatic solvent and either divinylbenzene , iso THEREFROM AND METHODS OF MAKING propylpentyl- 2 -methyl benzyl isocyanate or an acrylic AND USING SAME monomer . The main disadvantage of this technology is that it is solvent based , which may lead to regulatory issues in RELATED APPLICATIONS certain areas of the country as well as leading to relatively high toxicity and high flammability . In another examples , The present application is a continuation U . S . patent United States Published Patent Application No . application Ser. No . 14 /605 , 248 filed Jan . 26 , 2015 now U . S . 10 20130209792 disclosed a water based adhesion promoter for Pat. No . 9 , 994 ,727 , which claims provisional priority to and use in automotive applications, particularly for plastic parts . the benefit of U . S . Provisional Patent Application Ser . No . This product is limited in application to plastic parts and 61 /931 , 517 filed 24 Jan . 2014 . requires a significant amount of VOCs in the commercial product, presumably to maintain the polyurethane acrylic BACKGROUND OF THE INVENTION 15 resin hybrid and the chlorinated polyolefin in solution . Neither of the commercial products stated above are sug 1 . Field of the Invention gested to be useful as a paint additive. The patent and application teach that these products are only for use as Embodiments of the present invention relate to composi - surface preparations for automotive applications . tions including surface pretreating additive compositions, 20 Those skilled in the art will appreciate the ability of the surface pretreating compositions including the surface pre - adhesion promotion additive proposed in this invention as a treating additive compositions, surface adhesion promoting low VOC product capable of preparing many surfaces and compositions , and paint compositions including the adhe - also working synergistically as an adhesion boosting latex sion promoting composition and to methods for making and paint additive. One advantage of this new product is low using the compositions. 25 flammability , due in large part to the high water content in More particularly , embodiments of the present invention may formulas. Also , low VOCs in the formulation not only relate to surface pretreating additive compositions , surface allow the product to exceed requirements for VOCs in the pretreating compositions, surface adhesion promoting com - paint additive category, but also in the more stringent positions, and paint compositions include any combination Multipurpose Solvent category for CARB and SCAQMD . of an adhesion promoter system , a surfactant system , a 30 The very low VOC levels of < 50 g / L or even < 25 g /L in solvent system , and /or mixtures or combinations thereof. In some cases in these new formulations are very clear certain embodiments , the compositions may also include a improvement over the existing technology. solid system , a drying agent system , a crosslinking agent Usually , preparing a surface to be painted requires a system , an abrasion resistance system , a biocide system , a number of steps to assure successful paint adhesion . The UV stabilizer system , a wetting system , a defoaming system , 35 current process generally requires cleaning the surface with a paint additive system , and /or mixtures and combinations soap and water , sanding, deglossing , priming with a stand thereof. Embodiments of the surface pretreating composi alone paint primer and then finally painting the surface . tions and paint compositions include water sufficient to Even after all of this work , some latex paints do not adhere prepare either a water - in - oil emulsion or microemulsion or as well , particularly when a glossy oil based surface is not an oil - in -water emulsion or microemulsion . 40 deglossed , sanded and primed adequately . Our new technol ogy allows the user to simply wipe the surface with the 2 . Description of the Related Art proposed formula ( s ) . The surface is allowed to dry and then painted , preferentially , with a latex paint containing an In the past , alkyd , oil based paints with solvent carriers adhesion improving additive formula , which may even be were able to reliably adhere to metal and wood . However , 45 the same as that used to prepare the surface . even oil based paints typically require that a glossy surface There are a host of adhesion promoting additives known such as clear coat polyurethane or glossy oil based paint be to those skilled in the art. Some broad classes of materials pre- treated with a solvent based deglosser and / or sanding include , but are not limited to alkyd resins , nonionic sur before recoating . There are Low volatile organic compound factants , ionic surfactants , adhesives , polymers capable of (VOC ) paint deglossers on the market; however, they are 50 cross linking, polymers capable of cross linking , mixtures of often formulated with LVP solvents that require a long polymers and copolymers capable of crosslinking , block period of time to activate the paint and for the paint to dry copolymers , random copolymers , polymers , functionalized completely . Water based deglossers do not work reliably on polymers , etc . Many of the aforementioned materials have every surface . Further , the typical deglosser products on the been shown to promote adhesion to various surfaces either market are not indicated to be advantageous as an additive 55 alone or as a mixture of such products . EP89302087 . 5 to paints . One of the challenges of working with latex paint disclosed a mixture of polyurethane and paratoluene sulfo is to determine a reliable means of bonding the coating to a nic acid as a means to treat surfaces before painting as an variety of surfaces . There are other products in existence , alternative to sanding and priming , particularly to automo such as EmulsabondTM , that claim utility as an additive that tive windshield applications . EP1167356 A2 disclosed some may improve paint adhesion . However , these paint additives 60 improvements in wet adhesion have been observed in the do not suggest utility in the pretreatment of the surface to use of a polymerizable monomers . U . S . Pat. No . 4 ,466 , 840 painted , either by cleaning , deglossing or priming the sur - disclosed a method of pretreating surfaces to improve paint face . adhesion using hydroxybenzyl amines. The patentmentions There are many examples of solvent based adhesion that the adhesion promoter might also be added to the paint promoters that may be applied to surfaces to improve 65 as an alternative to pretreating the surface . EP0835529 A1 adhesion . The majority of such products are focused in the suggests that pretreatment of surfaces with a low VOC water automotive coating area , due to the need to bond to metal based mixture of diethanol amines , surfactants , an acrylic / US 10 , 196 , 535 B2 polyurethane

Load more