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'polyisobutylene-based polyurethanes polyureas and/or polyurethane-polyureas and method for making same'
'polyisobutylene-based polyurethanes polyureas and/or polyurethane-polyureas and method for making same'
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机译:“聚异丁烯基聚氨酯聚脲和/或聚氨酯-聚脲及其制备方法”
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摘要
The present invention generally relates to polyisobutylene-based polyurethanes, polyureas and/or polyurethane-polyureas, and to a process for making such compounds. In one embodiment, the polyisobutylene-based polyurethanes, polyureas and/or polyurethane-polyureas also include at least one flexible hydrogen bond acceptor chain extender (HACE). In another embodiment, amine telechelic and hydroxyl telechelic polyisobutylenes are utilized with at least one at least one flexible hydrogen bond acceptor chain extender (HACE) to produce polyurethane-polyureas having various desired mechanical properties in combination with various desired oxidative/ hydrolytic stability.
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