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US 4,617,286 AGranted
Catalyst for polyurethane having delay property
AssigneeToyo Soda Manufacturing Co., Ltd.
InventorsShoji Arai, Yutaka Tamano, Yukihiro Tsutsumi
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Abstract
The disclosed catalyst for polyurethane comprises an organic carboxylic acid salt of a tertiary amine compound and 1-methyl-4-(2-dimethylaminoethyl)piperazine. The tertiary amine compound is selected from the group of triethylenediamine, bis(2-dimethylaminoethyl)ether and N,N,N',N",N"-pentamethyldiethylenetriamine and the organic carboxylic acid is selected from the organic carboxylic acids having 1-20 carbon atoms.
Claims10
A catalyst for the foaming of polyurethanes, comprising:
- the combination of an organic carboxylic acid salt of a teritiary amine compound and 1-methyl-4-(2-dimethylaminoethyl)piperazine in 5-70% by weight of an organic solvent, wherein the amount of said 1-methyl-4-(2-dimethylaminoethyl)piperazine compound ranges from 0.01 to 10.0 times the molar amount of the tertiary amine component of said organic carboxylic acid salt.
The catalyst of claim:
- 9, wherein the amount of said organic carboxylic acid ranges from 0.1 to 0.8 equivalents.
Dependencies are inferred from the claim text.