发明授权
- 专利标题： Compact, transparent polyisocyanate polyaddition products
- 专利标题（中）： 紧凑，透明的多异氰酸酯加成产物
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申请号： US09266217申请日： 1999-03-10
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公开(公告)号： US06204325B1公开(公告)日： 2001-03-20
- 发明人: Christian Maletzko , Edwin Baumann , Ilka Renate Beuermann , Peter Roche , Ulrich Treuling , Hans-Peter Frei
- 申请人： Christian Maletzko , Edwin Baumann , Ilka Renate Beuermann , Peter Roche , Ulrich Treuling , Hans-Peter Frei
- 优先权： DE19811289 19980316
- 主分类号： C08J300
- IPC分类号： C08J300
摘要：
Compact, transparent polyisocyanate polyaddition products are produced in a process by reacting (a) isocyanates with (b) compounds reactive to isocyanates, if desired in the presence of (c) catalysts and (d) auxiliaries and/or additives, which comprises using as (b) compounds reactive to isocyanates a mixture (i) which has an average functionality of >3 and an average hydroxyl number of from 300 to 950 mg KOH/g.