发明授权
- 专利标题： Process for the preparation of polyurethane elastomers
- 专利标题（中）： 制备聚氨酯弹性体的方法
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申请号： US429707申请日： 1982-09-30
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公开(公告)号： US4587275A公开(公告)日： 1986-05-06
- 发明人: Richard Kopp , Holger Meyborg , Gerhard Grogler , Jurgen Schwindt
- 申请人： Richard Kopp , Holger Meyborg , Gerhard Grogler , Jurgen Schwindt
- 申请人地址： DEX Leverkusen
- 专利权人： Bayer Aktiengesellschaft
- 当前专利权人： Bayer Aktiengesellschaft
- 当前专利权人地址： DEX Leverkusen
- 优先权： DEX3012864 19800402
- 主分类号： C08G18/00
- IPC分类号： C08G18/00 ; C08G18/10 ; C08G18/32 ; C08G18/38 ; C08G18/65 ; C08G18/14
摘要：
Polyurethane urea elastomers are produced by reacting polyisocyanates with compounds containing at least two isocyanate reactive hydrogen atoms having a molecular weight of 400 to 10,000 and mononuclear or dinuclear aromatic diamines. The aromatic diamines must have at least one sulfonamide group as a substituent on at least one of their aromatic rings. Known chain lengthening agents, activators, blowing agents, auxiliary agents and additives may also be included in the reaction mixture.Polyurethane elastomers produced by this process have excellent mechanical properties. In particular, such elastomers are soft yet have high tear propagation resistance.
公开/授权文献
- US5579984A Bonding coordinate teaching method and teaching means 公开/授权日：1996-12-03
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