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. 26, 1994
Filed:
May. 20, 1992
Vincent S Zabrocki, Newark, OH (US);
Robert H Kelch, Granville, OH (US);
The Dow Chemical Company, Midland, MI (US);
Abstract
A coextruded weatherable film for lamination to an underlying nonweatherable substrate, including, for example, a two-layer film structure including an outer layer of a weatherable polymer that provides weather resistance such as ethylene/propylene/nonconjugated diene-reinforced styrene/acrylonitrile copolymer (AES) or butyl acrylate-reinforced styrene/acrylonitrile copolymer (ASA), coextruded over a thermoplastic underlying layer, for example, of a carbon black pigmented, UV stabilized polymer such as chlorinated polyethylene that provides UV protection for an underlying substrate such as vinyl siding or polymer layers.