Surface treatment of rigid polyvinyl chloride
AssigneeGAF Corporation
InventorsFred S. Morshauser, Luther L. Roberts
Life of this patent
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Abstract
Rigid polyvinyl chloride article and method for making same. The article comprises a substrate of PVC containing metallic soap of C.sub.8 -C.sub.22 fatty acid which is coated with an anionic phosphate acid ester surfactant and then a protective top coat. The surfactant improves adhesion of the top coat.
Claims10
Method for treating the surface of a rigid polyvinyl chloride substrate containing between 0.3 and 3.0 pounds per hundred pounds resin of metallic soap C.sub.8 -C.sub.22 fatty acid, which method comprises coating said surface with a continuous layer of phosphate acid ester surfactant.
Method for providing a protective coating on the surface of a rigid polyvinyl chloride substrate wherein the substrate contains between 0.3 and 3 pounds per hundred pounds resin of metallic coap of a C.sub.8 -C.sub.22 fatty acid, which method comprises the steps of:
- (a). coating the surface of the substrate with a continuous layer of phosphate acid ester surfactant;
- and
- (b). then coating the substrate with a protective top coat.
A rigid polyvinyl chloride article comprising:
- (a). a substrate of polyvinyl chloride containing between 0.3 and 3 pounds per hundred pounds resin metallic soap of C.sub.8 -C.sub.22 fatty acid;
- and
- (b). a protective or decorative top coat adhered to a surface of said substrate by a layer of phosphate acid ester surfactant.
Dependencies are inferred from the claim text.