Preparation of polyurethane elastomers, and mixtures...

Details Preparation of polyurethane elastomers, and mixtures... Preparation of polyurethane elastomers, and mixtures...

C - Chemistry, Metallurgy

08

L

C08L 71/00 (2006.01) C08G 18/00 (2006.01) C08G 18/48 (2006.01) C08G 18/66 (2006.01) C08J 9/06 (2006.01) C08K 5/15 (2006.01) C08L 75/08 (2006.01)

Patent

CA 2061062

A process for the preparation of a polyurethane elastomer by reacting a) an organic and/or modified organic polyisocyanate with b) at least one relatively high-molecular-weight poly-oxybutylene-polyoxyalkylene glycol from the group comprising polyoxybutylene-polyoxyethylene glycols, polyoxybutylene-polyoxypropylene glycols and/or polyoxybutylene-polyoxypropylene-polyoxyethylene glycols, c) at least one chain extender and/or crosslinking agent and d) at least one glycidyl compound containing units having the structure Image in which n is a number from 1 to 6, X is an alkylene, arylene, -O- or -N- bridge, and R1 and R2 are identical or different and are hydrogen, methyl or ethyl, in the presence or absence of e) blowing agents, f) catalysts and g) assistants and/or additives, and mixtures of polyoxybutylene-polyoxyalkylene glycols (b) and glycidyl compounds (d).

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