Invention Grant
- Patent Title: Polyimide having an alcoholic hydroxyl group and a process for the preparation thereof
- Patent Title (中): 具有醇羟基的聚酰亚胺及其制备方法
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Application No.: US11239238Application Date: 2005-09-30
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Publication No.: US07678874B2Publication Date: 2010-03-16
- Inventor: Michihiro Sugo , Hideto Kato , Tomoyuki Goto
- Applicant: Michihiro Sugo , Hideto Kato , Tomoyuki Goto
- Applicant Address: JP Tokyo
- Assignee: Shin-Etsu Chemical Co., Ltd.
- Current Assignee: Shin-Etsu Chemical Co., Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Birch, Stewart, Kolasch & Birch, LLP
- Priority: JP2004-286340 20040930; JP2004-293825 20041006; JP2005-281920 20050928
- Main IPC: C08G73/00
- IPC: C08G73/00

Abstract:
This invention relates to a novel polyimide silicone having an alcoholic hydroxyl group and a process for the preparation thereof. The polyimide of the invention having a primary alcoholic hydroxyl group is represented by the following general formula (1), wherein X represents a tetravalent organic group, Y represents a divalent group having at least one monovalent group selected from the group consisting of a phenolic hydroxyl group and a carboxyl group, with at least one being a divalent organic group having an alcoholic hydroxyl group, Z represents a divalent organic group, W represents a divalent organic group having an organosiloxane structure, k is a positive number, and each of m and n is equal to 0 (zero) or a positive number, with 0.1≦k/(k+m+n)≦1, 0≦m/(k+m+n)≦0.8, 0≦n/(k+m+n)≦0.8.
Public/Granted literature
- US20060069227A1 Polyimide having an alcoholic hydroxyl group and a process for the preparation thereof Public/Granted day:2006-03-30
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