Invention Grant
US08486539B2 Coating compositions and coatings produced from them with high scratch resistance, weathering stability, and good optical properties
有权
涂料组合物和涂料由它们制备,具有高耐刮擦性,耐候性稳定性和良好的光学性能
- Patent Title: Coating compositions and coatings produced from them with high scratch resistance, weathering stability, and good optical properties
- Patent Title (中): 涂料组合物和涂料由它们制备,具有高耐刮擦性,耐候性稳定性和良好的光学性能
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Application No.: US13132847Application Date: 2009-08-22
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Publication No.: US08486539B2Publication Date: 2013-07-16
- Inventor: Günter Klein , Björn Feldmann , Sabine Holtschulte , Silke Hottenbacher , Andreas Poppe , Ulrike Clausen-Meiring
- Applicant: Günter Klein , Björn Feldmann , Sabine Holtschulte , Silke Hottenbacher , Andreas Poppe , Ulrike Clausen-Meiring
- Applicant Address: DE Münster
- Assignee: BASF Coatings GmbH
- Current Assignee: BASF Coatings GmbH
- Current Assignee Address: DE Münster
- Agency: Quinn Law Group, PLLC
- Priority: DE102008060454 20081205
- International Application: PCT/EP2009/006110 WO 20090822
- International Announcement: WO2010/063332 WO 20100610
- Main IPC: C08L67/04
- IPC: C08L67/04 ; B32B27/36

Abstract:
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.
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