| 发明名称 |
HIGHLY SCRATCH-RESISTANT COATINGS HAVING GOOD WEATHERING AND CRACK RESISTANCE |
| 摘要 |
Disclosed is an at least partly crosslinked coating (K) composed of a near-surface coating zone (K1) and a volume coating zone (K2), the coating obtained from a composition comprising at least two different crosslinkable components (D1) and (D2), at least part of component (D) having one or more surface-active structural units, wherein (i) the coating in zone (K1) and in zone (K2) is at least partly crosslinked, and (ii) the crosslinking density of the coating in zone (K1) is higher than the crosslinking density of the coating in zone (K2). Also disclosed are coatings (K) wherein the concentration of component (D1) in the near-surface coating zone (K1) is higher than in the volume coating zone (K2), and the micropentration hardness and/or the dry scratch resistance of the coating (K) is higher than that of an at least partly crosslinked coating (K′) obtained from a composition with no crosslinkable component (D1). |
| 申请公布号 |
US2015056458(A1) |
申请公布日期 |
2015.02.26 |
| 申请号 |
US201414536171 |
申请日期 |
2014.11.07 |
| 申请人 |
BASF Coatings GmBH |
发明人 |
Poppe Andreas;Wegner Egon;Kutschera Michael;Essig Manfred |
| 分类号 |
C09D133/08;B05D7/00 |
主分类号 |
C09D133/08 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. An at least partly crosslinked coating (K) comprising
1. a near-surface coating zone (K1) and 2. a volume coating zone (K2), the coating (K) being obtained from a coating composition (B) comprising at least two different crosslinkable components (D1) and (D2), at least part of component (D1) comprising one or more surface-active structural units (O); wherein (i) the coating both in zone (K1) and in zone (K2) is at least partly crosslinked, and (ii) the crosslinking density of the coating in zone (K1) is higher than the crosslinking density of the coating in zone (K2). |
| 地址 |
Munster DE |
