| 摘要 |
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 polyoxybutylene-polyoxyalkylene glycol from the group comprising polyoxybutylene-polyoxyethylene glycols, polyoxybutylene-polyoxypropylene glycols and/or polyoxybutylene-polyoxpropylene-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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