The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 29, 2012
Filed:
Dec. 17, 2008
Shinya Oshita, Kurashiki, JP;
Yuhi Shimazumi, Kurashiki, JP;
Shinya Oshita, Kurashiki, JP;
Yuhi Shimazumi, Kurashiki, JP;
Kuraray Co., Ltd., Kurashiki-shi, JP;
Abstract
The present invention provides a polyvinyl acetal powder coating material capable of forming a coating film having a highly smooth surface, being less susceptible to yellowing when exposed to heat, and being suitable for working such as bending of a coated article. The present invention is a polyvinyl acetal powder coating material including: a polyvinyl acetal resin; and 0.02 to 5% by weight of an antioxidant relative to the polyvinyl acetal resin. The antioxidant has a molecular weight of 380 to 1000 and a melting point of 80 to 230° C. It is preferable that the molecular weight of the antioxidant be 400 to 1000.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile