| http://www.w3.org/ns/prov#value | - ining from 1 to 7 carbon atoms which may be halogen substituted, and n is an integer such as to provide said polymer with a molecular weight of from about 5000 to about 1,000,000, the substituent R in at least about 50 percent of said units in said polymer being alkyl containing from 1 to 3 carbon atoms, and (b) a water-soluble or water-dispersible N-vinyl heterocyclic polymer or copolymer selecte
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