Curable resin composition
AssigneeToshiba Silicone Co., Ltd.
InventorHisayuki Nagaoka
Life of this patent
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Abstract
Disclosed is a curable resin composition comprising (a) 100 parts by weight of a siloxane-amide block copolymer of formula (1): ##STR1## where R.sup.1 is a substituted or unsubstituted divalent hydrocarbon group; R.sup.2 may be the same or different and each is a substituted or unsubstituted monovalent hydrocarbon group; R.sup.3 is substituted or unsubstituted divalent aromatic hydrocarbon group; and m and an each are a number of 1 or more; (b) from 1 to 100 parts by weight of a crosslinking agent containing 2 or more epoxy groups in the molecule, and (c) up to 15 parts by weight of a curable catalyst. The composition can be cured at room temperature and in the absence of moisture in a closed system to give a cured product having high oil resistance and mechanical strength.
Claims3
A curable resin composition comprising:
- (a) 100 parts by weight of a siloxane-amide block copolymer represented by the formula:
- ##STR12## where R.sup.1 represents a substituted or unsubstituted divalent hydrocarbon group;
- each R.sup.2 may be the same or different substituted or unsubstituted monovalent hydrocarbon group;
- R.sup.3 represents a substituted or unsubstituted divalent aromatic hydrocarbon group;
- and m and n each represent a number of 1 or more;
- (b) from 1 to 100 parts by weight of a crosslinking agent containing 2 or more epoxy groups;
- and
- (c) up to 15 parts by weight of a curing catalyst.
Dependencies are inferred from the claim text.