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:
Jul. 10, 1979
Filed:
Aug. 28, 1978
Paul Kraft, South Spring Valley, NY (US);
Joseph Silberberg, Brooklyn, NY (US);
Stauffer Chemical Company, Westport, CT (US);
Abstract
Flame retardant blends having good impact resistance and a high heat deflection temperature which comprise: (1) an interpolymer comprising: (a) crosslinked (meth)acrylate; (b) crosslinked styrene-acrylonitrile; and (c) uncrosslinked styrene-acrylonitrile polymeric components; (2) a chlorinated vinyl chloride polymer; and (3) a vinyl chloride polymer. The blends have utility as an outdoor construction material for the construction industry, for example, for residential siding, gutter systems, shutters and the like. The amount of the interpolymer (1) which is present in the blend predominates over the respective weight amounts of either of the two other components (2) or (3).