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:
Oct. 01, 2019
Filed:
Sep. 24, 2014
Basf SE, Ludwigshafen, DE;
Stephen Mark Andrews, New Fairfield, CT (US);
Joseph James Fay, Hopewell Junction, NY (US);
Roswell Easton King, Pleasantville, NY (US);
Mohammad Zafar, Pittsford, NY (US);
Zhisheng Chen, Bernardsville, NJ (US);
Thomas Friend Thompson, Highland Mills, NY (US);
Feng Zuo, Scarsdale, NY (US);
BASF SE, Ludwigshafen, DE;
Abstract
Polyolefin compositions useful for construction articles for outdoor use, for instance house siding, cladding, soffit or roofing. The compositions comprise a polyolefin substrate which has incorporated therein one or more additives selected from the group consisting of a) one or more ultraviolet light absorbers, b) one or more hindered amine light stabilizers and c) one or more antioxidants. Advantageously, the polyolefin substrate also has incorporated therein d) one or more colorants, e) one or more fillers, f) one or more flame retardants and optionally g) one or more antimicrobial compounds. The compositions exhibit certain performance levels according to standard tests, for example impact strength of >35 in-lb per ASTM D4226, coefficient of linear thermal expansion of <4.5×10E-05 in/in/ft per ASTM D696 and optionally acceptable color uniformity in finished siding parts per ASTM D6864 and/or acceptable low delta E color for the intended application per ASTM D2244 and/or a UL-94 V-1 or V-0 rating and/or a flame spread index of <200 according to ASTM E-84.