Curable composition
AssigneeKaneka Corporation
InventorsNoriko Matsushita, Hiroshi Iwakiri, Toshihiko Okamoto
Life of this patent
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Abstract
The present invention has its object to provide a curable composition which allows slight bleedout of a liquid compound to occur to the cured product and shows good curability and adhesiveness using a non-organotin catalyst, an amine compound, as a silanol condensation catalyst. The present invention relates to a non-organotin-based curable composition which comprises: (A) an organic polymer having a silicon-containing group capable of crosslinking by siloxane bond formation, and (B) a specific amidine compound and/or a guanidine compound having a melting point of not lower than 23° C., as a silanol condensation catalyst.
Claims9
A non-organotin-based curable composition which comprises:
- (A) an organic polymer having a silicon-containing group capable of crosslinking by siloxane bond formation, wherein the (A) component organic polymer is at least one polymer selected from the group consisting of polyoxyalkylene polymers, saturated hydrocarbon polymers and (meth)acrylate ester polymers,
- (B) a biguanide compound represented by the general formula (4):
- R10N═C(NR112)—NR12—C(═NR13)—NR142 (4)
- (wherein R10, the two R11 moieties, R12, R13 and the two R14 moieties each independently is a hydrogen atom or a non-aryl monovalent organic group;
- any two or more of R10, the two R11 moieties, R12, R13 and the two R14 moieties may be bound together to form a ring structure) and/or the general formula (5):
- R15N═C(NR162)—N═C(NR172)—NR182 (5)
- (wherein R15, the two R16 moieties, the two R17 moieties, and the two R18 moieties each independently is a hydrogen atom or a non-aryl monovalent organic group;
- any two or more of R15, the two R16 moieties, the two R17 moieties and the two R18 moieties may be bound together to form a ring structure).
Dependencies are inferred from the claim text.