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Solid siliconized polyester resins for powder coatings
   
Document Number
US Patent 7129310
Issued Date
October 31, 2006
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Abstract
The present invention pertains to a siliconized polyester resin that has a sufficiently high Tg that the siliconized polyester is a solid at room temperature. The silicone polyester preferably has a Tg of 30.degree. C. or greater. The silicone polyester can be produced as a particulate and remain stable at room temperature. The particulate silicone polyester is suitable for use in coating compositions, including powder coating compositions. The coating can be clear or pigmented, and thus optionally can include pigment. The coating composition also includes a crosslinker. The coating composition can be ground into a powder. The powder is stable at room temperature. The powder is then capable of being coated on a suitable substrate and then baked to form a coated metal object.
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Number of Claims:
19
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Published
October 31, 2006
Application Number
10/745,181
Filed
December 23, 2003
US Classification
528/26   525/446 525/934
Int'l Classification
C08G   77/14   (20060101)  
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USPTO Field of Search
528/26   525/446   525/934  
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