Non-nucleophilic acid salts of amines as cure accelerators
AssigneeAshland Oil, Inc.
InventorAnil B. Goel
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Abstract
A curable composition comprising a polyepoxide, an amine curing agent and a catalytic amount of a non-nucleophilic acid salt of an amine having the formula R(R')(R")NH.sup.+ X.sup.- wherein R, R' and R" independently represent an alkyl group having from 1 to 20 carbon atoms, an alkaryl group having from 7 to 20 carbon atoms or an oxyalkylene group having from 2 to 50 carbon atoms and wherein R' and R" independently also may represent hydrogen and R may also represent the formula [--Y--(R')(R")NH.sup.+ X.sup.- ].sub.n wherein R' and R" have the foregoing designations, Y represents an alkylene or alkylene ether group having from 2 to 50 carbon atoms and n represents an integer of from 1 to 5 is described.
Claims14
A curable composition comprising a polyepoxide, an amine curing agent and a catalytic amount of a member selected from the group consisting of the tetrafluoroborate salt of aminoethylpiperazine, the tetrafluoroborate salt of diethylene triamine, the tetrafluoroborate salt of ethylene diamine, the tetrafluoroborate salt of triethylene tetramine, the tetrafluoroborate salt of an amido amine obtained by amidification of linoleic acid with ethylene diamine, the tetrafluoroborate salt of morpholine, the hexafluorophosphate salt of aminoethylpiperazine, the hexafluorophosphate salt of poly(oxy propylene) triamine and the hexafluorophospate salt of diethyl amine.
Dependencies are inferred from the claim text.