Curable resin composition
AssigneeKanegafuchi Kagaku Kogyo Kabushiki Kaisha
InventorsMikiko Suzuki, Jo Kawamura, Hiroshi Iwakiri, Fumio Kawakubo
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Abstract
A curable resin composition comprising (a) an oxyalkylene polymer comprising at least one reactive silicon group per molecule and having a number average molecular weight of not less than 3000 and an Mw/Mn ratio of not higher than 1.6, (b) a curing catalyst for the oxyalkylene polymer containing at least one reactive silicon group per molecule, (c) an epoxy resin, and (d) a ketimine; and a curable resin composition further comprises (e) a reactive silicon group-containing silane compound in addition to (a) to (d).
Claims13
A curable resin composition comprising:
- (a) an oxyalkylene polymer having a number average molecular weight (Mn) of 3000 or more and an Mw/Mn ratio of 1.6 or less comprised of
- (i) a group represented by the formula (3):
- ##STR7## wherein R is an divalent alkylene group of 2 to 4 carbon atoms and m is an integer;
- (ii) at least one reactive silicon group of the formulae (1) or (2):
- ##STR8## wherein R.sup.1 and R.sup.2 are independently:
- a straight, branched or cyclic alkyl group of 1 to 20 carbon atoms, an aryl group of 6 to 20 carbon atoms, an aralkyl of 7 to 20 carbon atoms, or a triorganosiloxy group of the formula:
- (R.sup.1).sub.3 SiO--, wherein each R' may be the same or different and represents phenyl or monovalent hydrocarbon group of 1 to 20 carbon atoms;
- may be the same or different and is a hydroxyl group or a hydrolyzable group:
- a is 0 or an integer from 1 to 3;
- b is 0, 1 or 2;
- and a +.SIGMA.b.gtoreq.1;
- (b) a curing catalyst comprised of at least one reactive silicon group per molecule of the formula (1) or (2) as described above;
- (c) an epoxy resin;
- and
- (d) a ketimine.
Dependencies are inferred from the claim text.