Title:
BRANCHED POLYCARBONATE
Document Type and Number:
WIPO Patent Application WO/2012/005250
Kind Code:
A1
Abstract:
Disclosed is a branched polycarbonate with branches derived from a polyfunctional compound and which includes a branch structure (a) derived from repeated units shown in the general formula (1) and a polyfunctional compound and a branch structure (b) that includes at least one type selected from a group of branched structures shown in the general formulas (2), (3), and (4). The total volume ratio of (a) and (b) to the volume in (1) is 0.2-1.0 mol%, the ratio of the volume of (b) to the total volume of (a) and (b) is 0.1-0.6, and the ratio of the volume of (2) to the volume of (b) is 0.5 min., (wherein the formula, Ar indicates a bivalent aromatic residue and Ar' indicates a trivalent aromatic residue.)
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Inventors:
NAMBA Nobutsugu (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
難波 仙嗣 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
難波 仙嗣 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
Application Number:
JP2011/065383
Publication Date:
January 12, 2012
Filing Date:
July 05, 2011
Export Citation:
Assignee:
Asahi Kasei Chemicals Corporation (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
旭化成ケミカルズ株式会社 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
NAMBA Nobutsugu (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
旭化成ケミカルズ株式会社 (〒01 東京都千代田区神田神保町一丁目１０５番地 Tokyo, 〒1018101, JP)
NAMBA Nobutsugu (1-105, Kanda Jinbocho Chiyoda-k, Tokyo 01, 〒1018101, JP)
International Classes:
C08G64/06; B29C49/00; B65D1/00
Attorney, Agent or Firm:
HASEGAWA Yoshiki et al. (SOEI PATENT AND LAW FIRM, Marunouchi MY PLAZA 9th fl.,1-1, Marunouchi 2-chom, Chiyoda-ku Tokyo 05, 〒1000005, JP)
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