Bis-(N-alkylaminocyclohexyl)methanes as curing agents in polyure

Details Bis-(N-alkylaminocyclohexyl)methanes as curing agents in polyure Bis-(N-alkylaminocyclohexyl)methanes as curing agents in polyure

1994-06-17

1995-11-28

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Cellular products or processes of preparing a cellular...

521163, 528 64, 528 67, 528 68, 528 85, C08G 1810

Patent

active

054708907

ABSTRACT:
Flexible foam resistant to both photochemical and oxidative degradation result from the use of bis(N-alkylaminocyclohexyl)methanes as curing agents for polyisocyanates or polyisocyanate prepolymers. The chain extenders may be used alone or in combination with other polyamines and with polyols. Where the polyisocyanate or polyisocyanate prepolymer is also aliphatic there is outstanding resistance to yellowing.

REFERENCES:
patent: 4246360 (1981-01-01), Brown et al.
patent: 5173516 (1992-12-01), Vratsanos
patent: 5223551 (1993-06-01), Gattuso et al.
patent: 5312886 (1994-05-01), House et al.

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