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AssigneeNisshinbo Holdings Inc.
InventorsNaohiro Uemura, Kenta Sasaki, Kazutoshi Hayakawa, Toshifumi Hashiba
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The marine biodegradable polymer compound includes, as essential units: (A) a structural unit A derived from a marine biodegradable linking agent which is a compound including two or more reactive groups X in the molecule and having, in the main chain, a structure which includes two or more organic anions having a predefined molecular weight and in which the organic anions are bound by an ionic bond formed by a metal cation having a valence of two or more; and (B1) a structural unit B1 derived from a compound having, in the molecule, two or more reactive groups Y that react with the reactive groups X or (B2) a structural unit B2 derived from a cyclic compound which can undergo ring opening polymerization and in which the reactive groups Y that reacts with the reactive groups X are generated in the molecule through ring-opening.
A marine biodegradable polymer compound which comprises as essential units:
A method for preparing a marine biodegradable polymer compound, which method comprises the step of polymerizing (A) a marine biodegradable linking agent which is a compound that includes on the molecule two or more reactive groups X and has, on a main chain, a structure which includes two or more organic anions having molecular weights of from 100 to 10,000 and in which the organic anions are bound by ionic bonds with a metal cation having a valence of two or more, (B1) a compound having on the molecule two or more reactive groups Y that react with the reactive groups X and (C) a compound, other than the marine biodegradable linking agent, which includes on the molecule two or more reactive groups X;
A compound having, on a main chain, a structure which includes two or more organic anions having molecular weights of from 100 to 10,000 and in which the organic anions are bound by ionic bonds with a metal cation having a valence of two or more, and including on the molecule two or more amino groups, carboxyl groups, thiol groups, vinyl groups or isocyanate groups.
Dependencies are inferred from the claim text.