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:
Sep. 20, 1983
Filed:
Feb. 03, 1982
Gary L Deets, Springfield, MA (US);
Quiriano A Trementozzi, Springfield, MA (US);
Monsanto Company, St. Louis, MO (US);
Abstract
Polyblends are described which comprise (i) 40 to 60% by weight of polyphenylene oxide; (ii) from 10 to 30% by weight an SAN or ABS polymer comprising from 2 to 14% by weight of acrylonitrile; and (iii) from 10 to 30% by weight of a styrene/maleic anhydride copolymer containing from 5 to 18% by weight of maleic anhydride; and in which: (a) the weight proportion of rubber (ungrafted basis) in the polyblend is less than 8%; and (b) the proportions of acrylonitrile and maleic anhydride are selected such that, when plasticized only with 4 parts of triphenyl phosphate for each 100 parts by weight of polyphenylene oxide, the Izod impact strength is at least 50 J/M notch and the distortion temperature under load is at least 110.degree. C.