发明申请
- 专利标题: COATING COMPOSITIONS AND COATINGS PRODUCED FROM THEM WITH HIGH SCRATCH RESISTANCE, WEATHERING STABILITY, AND GOOD OPTICAL PROPERTIES
- 专利标题(中): 涂层组合物和涂层,具有高耐蚀性,耐候稳定性和良好的光学性能
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申请号: US13132847申请日: 2009-08-22
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公开(公告)号: US20110245406A1公开(公告)日: 2011-10-06
- 发明人: Günter Klein , Björn Feldmann , Sabine Holtschulte , Silke Hottenbacher , Andreas Poppe , Ulrike Clausen-Meiring
- 申请人: Günter Klein , Björn Feldmann , Sabine Holtschulte , Silke Hottenbacher , Andreas Poppe , Ulrike Clausen-Meiring
- 申请人地址: DE Münster
- 专利权人: BASF COATINGS GMBH
- 当前专利权人: BASF COATINGS GMBH
- 当前专利权人地址: DE Münster
- 优先权: DE102008060454.2 20081205
- 国际申请: PCT/EP2009/006110 WO 20090822
- 主分类号: C08L67/00
- IPC分类号: C08L67/00 ; B05D1/36 ; B05D3/02
摘要:
The invention relates to coating compositions comprising (a) at least one hydroxyl-containing compound (A), (b) at least one saturated compound (B) having free and/or blocked isocyanate groups and containing at least in part hydrolyzable silane groups, and (c) at least one catalyst (D) for the crosslinking of silane groups, wherein the coating composition comprises as hydroxyl-containing compound (A) at least one hyperbranched, dendritic hydroxy-functional polyester in which on average at least one hydroxyl function of the polyester is esterified with at least one acid selected from the group of the isomeric C8 to C9 monocarboxylic acids. The present invention also provides a multistage coating method using these coating compositions, and also the use of the coating compositions as clearcoat material for producing multicoat effect and/or color paint systems, and use of the coating method for automotive OEM finishing and automotive refinish.