Biodegradable polymers
AssigneeMitsubishi Rayon Co., Ltd.
InventorsNariyoshi Kawabata, Mutsumi Kohsaka, Teruya Kurooka
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Abstract
Provided are biodegradable polymers each of which can be obtained by introducing pyridinium groups such as N-alkylpyridinium groups or N-arylpyridinium groups into a backbone of a synthetic polymer of a vinyl compound or olefin and then quaternizing the pyridinium groups with counter anions such as chlorine ions or bromine ions. The biodegradable polymers have high compatibility with microbial cells so that articles molded or otherwise formed from the biodegradable polymers can be easily decomposed by activated sludge or under conditions buried in the ground.
Claims5
In a biodegradable polymer composed predominantly of acrylonitrile monomers, the improvement wherein the backbone of said biodegradable polymer comprises 1-5 mole %, based on the total moles of monomer in said biodegradable polymer, of a second monomer comprising a vinyl group substituted with one member selected from the group consisting of N-alkylpyridinium groups, N-arylpyridinium groups and N-arylalkylpyridinium groups.
Dependencies are inferred from the claim text.