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Title:
MANUFACTURING METHOD FOR POLYIMIDE RESIN VARNISH
Document Type and Number:
WIPO Patent Application WO/2024/034634
Kind Code:
A1
Abstract:
A method of manufacturing a polyimide resin varnish comprises step (A) described below and step (B) described below and is under a dry gas environment from the start time of step (A) to the end time of step (B). Step (A) is for polymerizing, in an organic solvent and at 100 to 210°C, a tetracarboxylic acid component including an aliphatic tetracarboxylic acid dianhydride mixture and a diamine component including an aromatic diamine, and obtaining a polymer, and step (B) is for reacting, at 60 to 130°C, an alkoxysilylamine compound with the polymer obtained in step (A).

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Inventors:
HATAKEYAMA TAKURO (JP)
MURAYA TAKAHIRO (JP)
Application Number:
PCT/JP2023/029067
Publication Date:
February 15, 2024
Filing Date:
August 09, 2023
Export Citation:
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Assignee:
MITSUBISHI GAS CHEMICAL CO (JP)
International Classes:
C08G73/10; B32B27/34
Domestic Patent References:
WO2022210109A12022-10-06
Foreign References:
JP2005187768A2005-07-14
CN105440284A2016-03-30
JP2016188367A2016-11-04
JP2015212807A2015-11-26
KR20160098832A2016-08-19
JP2001270988A2001-10-02
JP2020204012A2020-12-24
Attorney, Agent or Firm:
OHTANI PATENT OFFICE (JP)
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