US PATENT SUBCLASS 514 / 772.2
.~.~ Polyvinyl alcohol

Current as of: June, 1999
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514 /   HD   DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS

772  DF  DESIGNATED ORGANIC NONACTIVE INGREDIENT CONTAINING OTHER THAN HYDROCARBON {9}
772.1  DF  .~ Aftertreated solid synthetic organic polymer (e.g., grafting, blocking, etc.) {1}
772.2.~.~ Polyvinyl alcohol

DEFINITION

Classification: 514/772.2

Polyvinyl alcohol:

(under subclass 772.1) Subject matter wherein the solid polymer is polyvinyl alcohol, e.g., obtained from the hydrolysis of polyvinyl acetate or copolymers thereof, etc.