Process for producing a curable resin from cyanate ester compoun

Details Process for producing a curable resin from cyanate ester compoun Process for producing a curable resin from cyanate ester compoun

1984-04-03

1985-08-06

Anderson, Harold D.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From carboxylic acid or derivative thereof

428413, 428415, 525407, 525523, 528271, 528363, C08G 8300

Patent

active

045337276

ABSTRACT:
A process for producing a curable resin comprises reacting (a) at least one cyanate ester compound selected from the group consisting of polyfunctional cyanate esters having 2 or more cyanato groups per one molecule, prepolymers of the cyanate esters or mixtures thereof with (b) at least one compound having 1,2-epoxy group(s) and radical-polymerizable unsaturated double bond(s) in its molecule, the cyanate ester compound (a) and the compound (b) being used so that the ratio of the cyanato group to the 1,2-epoxy group is in the range of about 1:0.25 to about 1:2, in the presence of (c) a radical polymerization inhibitor at a temperature of about 90.degree.--about 140.degree. C.
The curable resin produced according to the present invention is capable of giving cured products having excellent heat resistance and electrical properties.

REFERENCES:
patent: 4383903 (1983-05-01), Ayano et al.
patent: 4393195 (1983-07-01), Gaku et al.

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