Abstract

A resin composition comprising a copolymer and a curing agent, wherein: the copolymer contains repeating unit (A), repeating unit (B), repeating unit (C) and repeating unit (D); the curing agent is a salt of a compound having a cyclic amidine with an organic acid; the content of repeating unit (A) is 10-20 mol% inclusive; the content of repeating unit (B) is 20-50 mol% inclusive; the content of repeating unit (C) is 10-20 mol% inclusive; the content of repeating unit (D) is 20-50 mol% inclusive; and the content of the curing agent is 50-10000 ppm inclusive.

IPC Classes  ?

• C08G 77/24 - Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen halogen-containing groups
• C08K 5/3465 - Six-membered rings condensed with carbocyclic rings
• C08L 83/08 - Polysiloxanes containing silicon bound to organic groups containing atoms other than carbon, hydrogen, and oxygen
• H01L 33/44 - SEMICONDUCTOR DEVICES NOT COVERED BY CLASS - Details thereof characterised by the coatings, e.g. passivation layer or anti-reflective coating
• G02B 1/14 - Protective coatings, e.g. hard coatings

Abstract

A diphenylsulfone compound containing 4,4′-dihydroxydiphenylsulfone is produced in good yield in a short time and at a relatively low temperature. A diphenylsulfone compound represented by formula (2) below is produced by irradiating, with microwaves, a compound represented by formula (1) below and a sulfonating agent so that a dehydration condensation reaction is carried out.

IPC Classes  ?

• C07C 315/04 - Preparation of sulfonesPreparation of sulfoxides by reactions not involving the formation of sulfone or sulfoxide groups

Abstract

In the present invention, a diphenylsulfone compound containing 4,4'-dihydroxydiphenylsulfone is produced at a good yield in a short time at a relatively low temperature. A diphenylsulfone compound represented by formula (2) is produced by directing microwaves onto a compound represented by formula (1) and a sulfonating agent to effect dehydrocondensation.

IPC Classes  ?

• C07C 315/00 - Preparation of sulfonesPreparation of sulfoxides
• C07C 317/22 - SulfonesSulfoxides having sulfone or sulfoxide groups and singly-bound oxygen atoms bound to the same carbon skeleton with sulfone or sulfoxide groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton
• C07B 61/00 - Other general methods

Abstract

2—).

IPC Classes  ?

• C08G 75/23 - Polyethersulfones
• C08G 75/20 - Polysulfones
• C08G 85/00 - General processes for preparing compounds provided for in this subclass
• C08F 8/36 - SulfonationSulfation

Abstract

The purpose of the present invention is to provide a method of consistently producing high-quality diallylbisphenols with high yields from bisphenols. This method involves steps (1) through (3) below, and enables the consistent production of diallylbisphenols from bisphenols. (1) A step for reacting allyl halides and bisphenols or alkali metal salts thereof in a cellosolve solvent in the presence or absence of basic alkali metal salts, (2) a step for separating inorganic salt by-products from a reaction solution obtained in step (1), and (3) a step for heating and subjecting to a rearrangement reaction the reaction solution obtained in step (2).

IPC Classes  ?

• C07C 37/18 - Preparation of compounds having hydroxy or O-metal groups bound to a carbon atom of a six-membered aromatic ring by reactions increasing the number of carbon atoms by condensation involving halogen atoms of halogenated compounds
• C07C 39/21 - Compounds having at least one hydroxy or O-metal group bound to a carbon atom of a six-membered aromatic ring polycyclic, containing only six-membered aromatic rings as cyclic part, with unsaturation outside the rings with at least one hydroxy group on a non-condensed ring
• C07C 315/04 - Preparation of sulfonesPreparation of sulfoxides by reactions not involving the formation of sulfone or sulfoxide groups
• C07C 317/22 - SulfonesSulfoxides having sulfone or sulfoxide groups and singly-bound oxygen atoms bound to the same carbon skeleton with sulfone or sulfoxide groups bound to carbon atoms of six-membered aromatic rings of the carbon skeleton

Abstract

The present invention addresses the problem of providing a method whereby a sulfonated aromatic polymer can be manufactured in an industrially useful way and decreases in the molecular weight thereof can be prevented. The present invention is a method for manufacturing a sulfonated aromatic polymer and is characterized in that an aromatic polymer and a sulfonating agent are sulfonated in the presence of a solvent, said solvent being a compound containing a sulfonyl group (-SO2-).

IPC Classes  ?

• C08G 85/00 - General processes for preparing compounds provided for in this subclass
• C08F 8/36 - SulfonationSulfation