Waterbased high abrasion resistant coating
AssigneeNational Starch and Chemical Investment Holding Corporation
InventorsMichael W. Pinter, Marufur Rahim
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Abstract
A coating for weatherstrips, windshield wipers, door seals, trunk seals, sunroof seals, windshield seals and the like. The coating comprises a water-based formula that provides high abrasion resistance and, optimally, also provides excellent weathering resistance. The abrasion resistance property is achieved via a combination of boron nitride and a high molecular weight silicone resin. Flexibility and weathering resistance are achieved via the addition of an acrylic/polyurethane/fluoropolymer resin binder blend and high UV-stabilizers and absorbers. Also provided is a method of manufacturing such coatings that comprises the steps of pre-dispersing the boron nitride in water and then combining the pre-dispersed boron nitride with the silicone resin and other ingredients.
Claims36
A high abrasion and weather resistant water-based coating comprising boron nitride, silicone resin, a resin binder, and at least one crosslinking agent, wherein the resin binder comprises a blend of acrylic resin, polyurethane resin, and fluoropolymer.
A method of producing a high abrasion and weather resistant coating comprising:
- (a) forming a pre-dispersion containing boron nitride and water;
- and
- (b) adding silicone resin and at least one resin binder and at least one cross-linking agent to the pre-dispersion,
- wherein the resin binder comprises a blend of arcylic resin polyurethane resin, and fluoropolymer.
Dependencies are inferred from the claim text.