发明名称 |
Blocked polyisocyanates prepared from partially trimerized cyclic organic diisocyanates having (cyclo)aliphatically bound isocyanate groups and their use for the production of coatings. |
摘要 |
<p>The present invention relates to a blocked polyisocyanate which is based on the reaction product of a polyisocyanate with a reversible, monofunctional blocking agent for isocyanate groups, wherein the polyisocyanate is prepared by trimerizing 5 to 85% of the isocyanate groups of a cyclic organic diisocyanate having (cyclo)aliphatically bound isocyanate groups and contains i) an isocyanurate group-containing polyisocyanate and ii) at least 5% by weight, based on the weight of the polyisocyanate, of unreacted diisocyanate. The present invention also relates to a one-component coating composition containing this blocked polyisocyanate and a polyhydroxyl polyacrylate and/or a polyhydroxyl polyester. Finally, the present invention relates to substrates coated with this coating composition.</p> |
申请公布号 |
EP0557822(A2) |
申请公布日期 |
1993.09.01 |
申请号 |
EP19930102224 |
申请日期 |
1993.02.12 |
申请人 |
MILES INC. |
发明人 |
VENHAM, LANNY D.;SALEK, MARIANNE M.;POTTER, TERRY A. |
分类号 |
C08G18/42;C08G18/62;C08G18/79;C08G18/80;C09D175/00;C09D175/04 |
主分类号 |
C08G18/42 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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