| 发明名称 |
UV- And Thermally Curing Clearcoat Composition For Automotive Refinishing |
| 摘要 |
An UV- and thermally curable, solventborne clearcoat material suitable for automotive refinishing comprises:
(A) at least one polyhydroxy-functional poly(meth)acrylate having grafted-on unsaturated (meth)acrylate side groups,(B) at least one polyisocyanate-functional, poly(meth)acrylate-functional aliphatic urethane,(C) at least one (meth)acrylate-functional aliphatic urethane free from isocyanate groups,(D) at least one hydroxy-functional, (meth)acrylate-functional aliphatic component free from isocyanate groups and from urethane groups and having a molecular weight of not more than 1000 g/mol and a (meth)acrylate functionality of at least 4,(E) at least one aliphatic polymercaptan,(F) at least one phosphoric acid or phosphonic acid blocked with an amine, the amine possessing a pKb of ≧3 and a boiling point under atmospheric pressure of >100° C., and(G) at least one photoinitiator selected from the group consisting of α-hydroxyalkyl phenyl ketones and monoacylphosphine oxides.
Component (A) may be an intermediate in the production of the clearcoat material. |
| 申请公布号 |
US2015322285(A1) |
申请公布日期 |
2015.11.12 |
| 申请号 |
US201314410297 |
申请日期 |
2013.07.04 |
| 申请人 |
BASF Coatings GmbH |
发明人 |
Rademacher Josef;Nienhaus Egbert;Schöps Sibylle;Steffens Alexandra |
| 分类号 |
C09D151/00 |
主分类号 |
C09D151/00 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An UV- and thermally curable, solventborne clearcoat material comprising
(A) at least one polyhydroxy-functional poly(meth)acrylate having grafted-on unsaturated (meth)acrylate side groups, (B) at least one polyisocyanate-functional aliphatic urethane containing at least two (meth)acrylate groups, (C) at least one (meth)acrylate-functional aliphatic urethane free from isocyanate groups, (D) at least one hydroxy-functional, (meth)acrylate-functional aliphatic component free from isocyanate groups and from urethane groups and having a molecular weight of not more than 1000 g/mol and a (meth)acrylate functionality of at least 4, (E) at least one aliphatic polymercaptan, (F) at least one phosphoric acid or phosphonic acid blocked with an amine, the amine possessing a pKb of ≧3 and a boiling point under atmospheric pressure of >100° C., and (G) at least one photoinitiator selected from the group consisting of a hydroxyalkyl phenyl ketones and monoacylphosphine oxides. |
| 地址 |
Münster DE |
