Surface hydrolyzed olefin-vinyl ester container coatings
AssigneeNational Distillers and Chemical Corporation
InventorsAlfred B. Zimmerman, Leroy J. Memering
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Abstract
A container is provided with a coating having a frosty appearance comprising an olefin-vinyl ester copolymer the exterior surface of which is hydrolyzed following application of the coating to the exterior surface container. Surface hydrolysis of the olefin-vinyl ester coating significantly improves container-to-container lubricity without appreciably affecting the mechanical properties of the coating.
Claims13
A container provided with an impact absorbent shatter resistant coating having a frosty appearance which comprises a surface hydrolyzed olefin-vinyl ester copolymer, wherein the degree of hydrolysis of said olefin-vinyl ester copolymer is essentially to a depth of from about 10 percent to about 30 percent of the average thickness of the coating.
A process for providing a container with an impact absorbent, shatter resistant coating having a frosty appearance which comprises coating the container with an essentially unhydrolyzed olefin-vinyl ester copolymer and thereafter subjecting the exterior surface of the olefin-vinyl ester coating to hydrolysis so that the degree of said hydrolysis of said olefin-vinyl ester copolymer is essentially to a depth of from about 10 percent to about 30 percent of the average thickness of the coating.
Dependencies are inferred from the claim text.