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US 7,119,151 B2Granted
Antimicrobial agent and production process thereof
AssigneeSony Corporation
InventorsHaruo Watanabe, Yasuhito Inagaki, Tsutomu Noguchi
Life of this patent
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Abstract
An antimicrobial agent utilizes a resin having acrylonitrile and styrene and/or a conjugated diene as units. The antimicrobial agent includes a metal-salt-containing copolymer, and the metal-salt-containing copolymer is obtained by treating a copolymer containing acrylonitrile and at least one of styrene and a conjugated diene as units with an acid to thereby introduce acid radicals into the copolymer, and converting at least part of the acid radicals into a salt of at least one metal selected from among Ag, Cu, and Zn.
Claims14
A process for producing an antimicrobial agent, comprising the steps of:
- treating a copolymer with an acid to thereby introduce acid radicals into said copolymer, said copolymer containing acrylonitrile and at least one of styrene and a conjugated diene as units;
- and
- converting at lest part of said acid radicals into a salt of at least one metal selected from the group consisting of Ag, Cu, and Zn.
Dependencies are inferred from the claim text.