Bis-(N-alkylaminocyclohexyl)methanes as curing agents in polyurethane and polyurea flexible foam manufacture
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United States of America Patent
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Nov 28, 1995
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N/A
app pub date -
Jun 17, 1994
filing date -
Jun 17, 1994
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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.
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