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US 7,064,172 B2Granted
Catalyst for production of a polyurethane resin and method for producing a polyurethane resin
AssigneeTosoh Corporation
InventorsTakahiro Masuda, Hiroaki Nakamura, Yutaka Tamano
Life of this patent
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Abstract
Catalyst containing various amine compounds are described, for the production of polyurethane resins.
Claims4
A catalyst for production of a polyurethane resin, which contains a compound of the following formula (5):
- wherein each of R3, R4 and R5 which are independent of one another, is a hydrogen atom or a C1-4 alkyl group, R6 is a hydrogen atom, a functional group of the following formula:
- wherein R7 is a hydrogen atom or a C1-4 alkyl group, and p is an integer of from 1 to 3, or a 3-aminopropyl group;
- and an amine compound of the following formula (6):
- wherein X is a nitrogen atom or an oxygen atom, each of R8 and R9 which are independent of each other, is a methyl group or a functional group of the following formula:
- wherein R10 is a hydrogen atom or a C1-4 alkyl group and q is an integer of from 1 to 3, and each of m and n is an integer of from 1 to 2, provided that when X is a nitrogen atom, R8 and R9 are not simultaneously methyl groups, and that when X is an oxygen atom, R9 is a functional group of the following formula:
- wherein R10 is a hydrogen atom or a C1-4 alkyl group, and q is an integer of from 1 to 3.
3 more elements
Dependencies are inferred from the claim text.