Non-aqueous sprayable and curable dampening compositions for automotive body and closure panels and associated methods for curing and using the same
AssigneeUniseal, Inc.
InventorsThanikaivelan Tindivanam Veeraraghavan, Karthikeyan Sengotaiyan, Senthilkumar Veeraraghavan
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Abstract
A non-aqueous sprayable and curable dampening composition for automotive body and closure panels which cures to form a cured product, including: (1) a PVC homopolymer resin and/or a mixture of a PVC copolymer resin; (2) a phthalate plasticizer and a benzoate plasticizer; (3) a filler component, wherein the filler component comprises one or more spherical fillers and/or one or more platy fillers; (4) a modified epoxy resin; (5) an adhesion promoter; and (6) a substrate wetting agent.
Claims25
A non-aqueous sprayable and curable dampening composition for automotive body and closure panels which cures to form a cured product, comprising:
- a PVC homopolymer resin and/or a mixture of a PVC copolymer resin;
- a phthalate plasticizer and a benzoate plasticizer;
- a filler component, wherein the filler component comprises one or more spherical filler(s) and/or one or more platy filler(s);
- a modified epoxy resin;
- an adhesion promoter, wherein the adhesion promoter comprises an epoxy-based silane;
- and
- a substrate wetting agent.
A method for using a curable dampening composition, comprising the steps of:
- (a) providing a curable dampening composition comprising:
- (1) a PVC homopolymer resin and/or a mixture of a PVC copolymer resin;
- (2) a phthalate plasticizer and a benzoate plasticizer;
- (3) a filler component, wherein the filler component comprises one or more spherical filler(s) and one or more platy filler(s);
- (4) a modified epoxy resin;
- (5) an adhesion promoter, wherein the adhesion promoter comprises an epoxy-based silane;
- and
- (6) a substrate wetting agent;
- (b) spraying a coating of the composition onto a substrate;
- and
- (c) curing the coating of the composition on the substrate such that the cured composition comprises an interpenetrating network of a cured epoxy modified rubber and cured PVC resin.
Dependencies are inferred from the claim text.