Invention Grant
- Patent Title: Process for the production of a dark-color multi-layer coating
- Patent Title (中): 用于生产深色多层涂层的方法
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Application No.: US12993122Application Date: 2009-05-27
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Publication No.: US08835008B2Publication Date: 2014-09-16
- Inventor: Gunter Richter , Karl-Friedrich Dossel
- Applicant: Gunter Richter , Karl-Friedrich Dossel
- Applicant Address: US DE Wilmington
- Assignee: Axalta Coating Systems IP Co., LLC
- Current Assignee: Axalta Coating Systems IP Co., LLC
- Current Assignee Address: US DE Wilmington
- Agency: Ingrassia Fisher & Lorenz, P.C.
- International Application: PCT/US2009/045263 WO 20090527
- International Announcement: WO2009/146317 WO 20091203
- Main IPC: B32B5/16
- IPC: B32B5/16 ; B32B15/02 ; B05D7/16 ; B05D7/00 ; C09D7/12 ; B05D3/02 ; C09D5/33 ; C08K3/22 ; B05D1/02 ; C08K3/08 ; B05D5/06

Abstract:
A process for the production of a dark-color multi-layer coating, comprising the successive steps: (1) applying an NIR-opaque coating layer A′ from a pigmented, solvent- or waterborne coating composition A to a substrate, (2) applying a coating layer B′ from a pigmented coating composition B onto the substrate provided with coating layer A′, wherein the pigment content of coating composition A consists 90 to 100 wt. % of at least one 10 to 80 nm thick aluminum flake pigment and 0 to 10 wt. % of at least one further pigment, which is selected in such a way that NIR-opaque coating layer A′ exhibits low NIR absorption, wherein the pigment content of coating composition B consists 50 to 100 wt. % of at least one black pigment with low NIR absorption and 0 to 50 wt. % of at least one further pigment, which is selected in such a way that coating layer B′ exhibits low NIR absorption and that the dark-color multi-layer coating exhibits a brightness L* (according to CIEL*a*b*, DIN 6174), measured at an illumination angle of 45 degrees to the perpendicular and an observation angle of 45 degrees to the specular, of at most 10 units, wherein the sum of the respective wt. % equals 100 wt. %, and wherein the coating layers A′ and B′ are cured.
Public/Granted literature
- US20110070427A1 PROCESS FOR THE PRODUCTION OF A DARK-COLOR MULTI-LAYER COATING Public/Granted day:2011-03-24
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