发明授权
US06566481B2 Polyisocyanates with allophanate groups derived from alicyclic alkanediols
有权
具有衍生自脂环族烷二醇的脲基甲酸酯基的多异氰酸酯
- 专利标题： Polyisocyanates with allophanate groups derived from alicyclic alkanediols
- 专利标题（中）： 具有衍生自脂环族烷二醇的脲基甲酸酯基的多异氰酸酯
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申请号： US09769310申请日： 2001-01-26
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公开(公告)号： US06566481B2公开(公告)日： 2003-05-20
- 发明人: Bernd Bruchmann , Hans Renz , Günter Mohrhardt , Hubert Baumgart , Simone Bitter
- 申请人： Bernd Bruchmann , Hans Renz , Günter Mohrhardt , Hubert Baumgart , Simone Bitter
- 优先权： DE10005228 20000205
- 主分类号： C08G1810
- IPC分类号： C08G1810
摘要：
A polyisocyanate of formula (I) OCN—R1—[—NX—CO—O—R2—O—CO—NH—R1—]n—NCO in which the units R1, X and R2 have the meanings: R1 is a unit of the formula (II): —CH2—CH2—CH2—CH2—CH2—CH2— (II) X is hydrogen or a unit of the formula (III): —CO—NH—R1—NCO (III), with the proviso that at least one of the units X in the polyisocyanates is a unit of formula (III); and R2 • is a 4-, 5- or 6-membered cycloalkylene group containing radical.
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