Invention Grant
- Patent Title: Coating composition
- Patent Title (中): 涂料组成
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Application No.: US10554330Application Date: 2004-04-23
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Publication No.: US07728075B2Publication Date: 2010-06-01
- Inventor: Johannes Wilhemus Maria Schellekens , Martin Bosma , Freddy Gerhard Hendrikus Van Wijk , Paul Marie Vandevoorde
- Applicant: Johannes Wilhemus Maria Schellekens , Martin Bosma , Freddy Gerhard Hendrikus Van Wijk , Paul Marie Vandevoorde
- Applicant Address: NL Bergen Op Zoom
- Assignee: Nuplex Resins B.V.
- Current Assignee: Nuplex Resins B.V.
- Current Assignee Address: NL Bergen Op Zoom
- Agency: Howrey LLP
- Agent Coraline J. Haitjema; David P. Owen
- Priority: EP03076233 20030424
- International Application: PCT/EP2004/004384 WO 20040423
- International Announcement: WO2004/094515 WO 20041104
- Main IPC: C08L75/14
- IPC: C08L75/14 ; C08F20/00

Abstract:
The invention relates to a high gloss car wash-resistant coating composition comprising a hydroxyl-functional binder and a cross-linker reactive with the hydroxyl groups of the binder and a method to prepare such a car wash-resistant coating. The invention further relates to the use of said coating composition, as a pigment-free top coat or a clear coat, in the finishing and refinishing of articles, for example motorcycles, cars, trains, buses, trucks, and aeroplanes. The coating composition after curing forms a coating having an initial gloss of at least 81 GU and a loss of gloss (LoG) of less than 0.18, the loss of gloss being determined by the formula (I): LoG=A+B·E′·(X)−1·10(C·ΔTg)+D·(E′)−0.5; wherein A=0.0132, B=1.0197, C=0.0113, and D=0.0566, E′ reflects the tensile storage modulus at 40° C. in GPa, ΔTg the width of the glass transition temperature in ° C., and X the cross-link density parameter in kPA/K all three parameters determined in a DMTA test at 11 Hz and a heating rate of 5° C./min.
Public/Granted literature
- US20060281862A1 Coating composition Public/Granted day:2006-12-14
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