发明授权
- 专利标题： Segmented polyurethane resins
- 专利标题（中）： 分段聚氨酯树脂
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申请号： US26110申请日： 1979-04-02
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公开(公告)号： US4228249A公开(公告)日： 1980-10-14
- 发明人: Johannes Blahak , Roland Gipp , Kuno Wagner , Erwin Muller , Jan Mazanek , Peter Haas
- 申请人： Johannes Blahak , Roland Gipp , Kuno Wagner , Erwin Muller , Jan Mazanek , Peter Haas
- 申请人地址： DEX Bayerwerk
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Bayerwerk
- 优先权： DEX2706297 19770215; DEX2744599 19771004
- 主分类号： C08G18/00
- IPC分类号： C08G18/00 ; C08G18/10 ; C08G18/40 ; C08G18/42 ; C08G18/46 ; C08G18/14
摘要：
This invention relates to new high molecular weight polyurethanes which contain a very small amount of urethane and urea groups. These new synthetic resins are built up as block copolymers and contain relatively high molecular weight segments which are derived from high melting and low melting polyols and linked together through ester and/or urethane and/or urea groups.
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