US PATENT SUBCLASS 430 / 909
.~.~.~ Vinyl alcohol polymer or derivative

Current as of: June, 1999
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430 /   HD   RADIATION IMAGERY CHEMISTRY: PROCESS, COMPOSITION, OR PRODUCT THEREOF

*  DD  IMAGING AFFECTING PHYSICAL PROPERTY OR RADIATION SENSITIVE MATERIAL, OR PRODUCING NONPLANAR OR PRINTING SURFACE - PROCESS, COMPOSITION, OR PRODUCT {1}
*  DD  .~ Radiation sensitive composition or product or process of making {4}
905  DF  .~.~ Binder containing {7}
909.~.~.~ Vinyl alcohol polymer or derivative

DEFINITION

Classification: 430/909

Vinyl alcohol polymer or derivative:

Art collection involving a binder which is a polymer containing the vinyl alcohol unit in the polymer chain or OH derivative wherein the hydrogen of the -OH group is replaced by another substituent.

(1) Note. Since monomeric vinyl alcohol does not exist, per se, these polymers are generally prepared by hydrolysis of vinyl acetate polymers to give free -OH groups in the chain. The derivatives of this art collection must contain at least some free -OH groups in the vinyl alcohol polymer.