POLYIMIDE RESIN

WIPO Patent Application WO/2015/020016

A1

A polyimide resin containing a repeating constituent unit represented by formula (1), a repeating constituent unit represented by formula (2), and a repeating constituent unit represented by formula (A) or a constituent unit represented by formula (B), wherein the ratio of the content of formula (1) to the total content of formula (1) and formula (2) is 40 to 70 mol%, and the ratio of the content of formula (A) or formula (B) to the total content of formula (1) and formula (2) is more than 0 mol% and 25 mol% or less. (R1 represents a bivalent group having 6 to 22 carbon atoms and containing at least one alicyclic hydrocarbon structure; R2 represents a bivalent linear aliphatic group having 5 to 20 carbon atoms; Ra represents a bivalent group containing at least one aromatic ring, wherein a monovalent or bivalent electron-withdrawing group is bound to the aromatic ring; Rb represents a bivalent group containing -SO2- or -Si(Rx)(Ry)O- (wherein Rx and Ry independently represent a linear aliphatic group having 1 to 3 carbon atoms or a phenyl group); and X1, X2, Xa and Xb independently represent a tetravalent group having 6 to 22 carbon atoms and containing at least one aromatic ring).

SATO YUUKI (JP)
MITADERA JUN (JP)

PCT/JP2014/070529

February 12, 2015

August 04, 2014

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MITSUBISHI GAS CHEMICAL CO (JP)

C08G73/10; C09J179/08

JP2002179913A	2002-06-26
JP2013079345A	2013-05-02
JP2012184317A	2012-09-27
JPH01132632A	1989-05-25
JP2005028524A	2005-02-03
JPS62236858A	1987-10-16

AURUM TECHNICAL INFORMATION/G-06 AURUM INJECTION MOLDING CONDITIONS, 28 June 2013 (2013-06-28), Retrieved from the Internet
MACROMOL. RAPID. COMMUN., vol. 885, 2005, pages 26

OHTANI, Tamotsu (JP)
Tamotsu Otani (JP)

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