Preparation of compact or cellular elastomers containing...

Details Preparation of compact or cellular elastomers containing... Preparation of compact or cellular elastomers containing...

C - Chemistry, Metallurgy

08

G

C08G 18/66 (2006.01) B29C 45/00 (2006.01) B29C 49/06 (2006.01) C08G 18/10 (2006.01) C08G 18/50 (2006.01)

Patent

CA 2095676

Compact or cellular elastomers containing urethane and urea groups are prepared by reacting a) at least one organic and/or modified organic polyisocyanate b) at least one N-propoxylated polyoxyalkylene-polyamine containing at least 50% of secondary amino groups or a mixture of said N-propoxylated polyoxyalkylene- polyamines and polyoxyalkylene-polyamines containing 2 to 4 primary amino groups and having a molecular weight of from 1000 to 8000, c) at least one alkyl-substituted aromatic polyamine having a molecular weight up to 500, in the presence or absence of d) catalysts and, if desired, e) blowing agents, f) auxiliaries and/or g) additives.

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