LOW WATER-ABSORPTIVE POLYIMIDE RESIN AND METHOD FOR PRODUCING SAME

Title:

LOW WATER-ABSORPTIVE POLYIMIDE RESIN AND METHOD FOR PRODUCING SAME

Document Type and Number:

WIPO Patent Application WO/2006/068096

Kind Code:

A1

Abstract:

Disclosed is a polyimide resin obtained by reacting a compound selected from 1,2,4,5-cyclohexanetetracarboxylic acid, acid dianhydrides thereof and reactive derivatives of them with a compound selected from diamines containing at least one phenylene group and an isopropylidene group and diisocyanates. Such a polyimide resin is colorless and has high heat resistance, high transparency and low water absorption.

Inventors:

Makinoshima, Takashi c/o Mitsubishi Gas Chemical Company (Inc. Hiratsuka Research Laboratory, 6-2, Higashiyawata 5-chom, Hiratsuka-shi Kanagawa 16, 25400, JP)
Kihara, Shuta c/o Mitsubishi Gas Chemical Company (Inc. Hiratsuka Research Laboratory, 6-2, Higashiyawata 5-chom, Hiratsuka-shi Kanagawa 16, 25400, JP)

Application Number:

PCT/JP2005/023281

Publication Date:

June 29, 2006

Filing Date:

December 19, 2005

Export Citation:

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Assignee:

MITSUBISHI GAS CHEMICAL COMPANY, INC. (5-2 Marunouchi 2-chome, Chiyoda-ku, Tokyo 24, 10083, JP)
Makinoshima, Takashi c/o Mitsubishi Gas Chemical Company (Inc. Hiratsuka Research Laboratory, 6-2, Higashiyawata 5-chom, Hiratsuka-shi Kanagawa 16, 25400, JP)
Kihara, Shuta c/o Mitsubishi Gas Chemical Company (Inc. Hiratsuka Research Laboratory, 6-2, Higashiyawata 5-chom, Hiratsuka-shi Kanagawa 16, 25400, JP)

International Classes:

C08G73/10; B29C41/12; C08G18/34; C08G18/76

Attorney, Agent or Firm:

Ohtani, Tamotsu (OHTANI PATENT OFFICE, Bridgestone Toranomon Bldg. 6F. 25-2, Toranomon 3-chom, Minato-ku Tokyo 01, 10500, JP)

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