| http://www.w3.org/ns/prov#value | - The acid copolymers preferably comprise alpha olefin, particularly ethylene, C.sub.3???8.alpha .beta. ethylenically unsaturated carboxylic acid, particularly acrylic and methacrylic acid, and softening monomers, selected from alkyl acrylate, and alkyl methacrylate, wherein the alkyl groups have from 1???8 carbon atoms, copolymers.
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