| http://www.w3.org/ns/prov#value | - Hydrolyzable film- and fiber-forming polymers having a plurality of repeating units of the formula: ##STR1## wherein R is lower alkyl, aryl, alkaryl and aralkyl; R1, R2 and R3 are each selected from H or lower alkyl with the proviso that at least one of R1, R2, R3 is H; and n is an integer of 0 to 2.
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