SULFO-GROUP-CONTAINING POLYHYDROXY POLYETHER RESIN, RESIN COMPOSITION CONTAINING SAID RESIN, CURABLE RESIN COMPOSITION CONTAINING SAID RESIN, AND FILM OBTAINABLE THEREFROM

WIPO Patent Application WO/2011/087153

A1

Provided is a sulfo-group-containing polyhydroxy polyether resin capable of forming an insulating resin film that exhibits low moisture absorption and good solubility in solvents while also exhibiting high heat resistance and good adhesion to metals. Said sulfo-group-containing polyhydroxy polyether resin, which is represented by formula (1), contains between 3% and 8% sulfur and between 10% and 30% methyl groups, by weight, and has a weight-average molecular weight between 10,000 and 200,000. Also provided are: a curable resin composition that requires the aforementioned sulfo-group-containing polyhydroxy polyether resin and a thermosetting resin; an insulating resin film characterized by being obtainable from the aforementioned sulfo-group-containing polyhydroxy polyether resin; and an insulating resin film characterized by being obtainable from the aforementioned curable resin composition.

SAITO NOBUHISA (JP)
ASAKAGE HIDEYASU (JP)
TAKUWA SEIGO (JP)

PCT/JP2011/051136

July 21, 2011

January 17, 2011

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NIPPON STEEL CHEMICAL CO (JP)
SAITO NOBUHISA (JP)
ASAKAGE HIDEYASU (JP)
TAKUWA SEIGO (JP)

C08G65/40; C08L71/10

GB939225A	1963-10-09
US3364178A	1968-01-16
JP2001261789A	2001-09-26

VAN, H.H.: "Dynamic mechanical study of the effect of chemical variations on the internal mobility of linear epoxy resins [poly(hydroxy ethers)]", JOURNAL OF APPLIED POLYMER SCIENCE, vol. 12, no. 4, 1968, pages 871 - 888

AOKI, Atsushi et al. (JP)
Aoki 篤 (JP)

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