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:
Apr. 23, 2002
Filed:
Jan. 09, 1997
Stanley Edmond, Woodland Hills, CA (US);
Daniel M. Gelfand, Cerritos, CA (US);
Emery Szabo, Seal Beach, CA (US);
Ellay, Inc., Los Angeles, CA (US);
Abstract
A window for use in a vehicular convertible top comprises a thin, flexible, optically transparent plastic substrate sheet, and a thin, flexible, optically transparent abrasion-resistant protective outer film layer adherently bonded as a permanent coating to both sides of the plastic substrate sheet. The protective outer film layer comprises a weatherable polymer which is transparent in thin film form reacted with a cross-linking agent and blended with a dispersed lubricant to provide a level of abrasion-resistance and a self-lubricating exterior surface to the finished protective outer film. The window withstands repeated folding and unfolding without self-adhesion of the contacting surfaces owing to the release properties provided by the lubricant. In one embodiment, the weatherable polymer comprises a solvent based solution of a polyurethane material reacted with a polyisocyanate cross-linking agent and blended with a polyol-ester glycol-based external lubricant.