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. 25, 1983
Filed:
Jul. 21, 1981
Applicant:
Inventors:
Hendrikus C de Man, Geleen, NL;
Petrus T Smids, Maastricht, NL;
Assignee:
Stamicarbon B.V., Geleen, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08F / ;
U.S. Cl.
CPC ...
526293 ; 526271 ;
Abstract
Fire-resistant copolymers of bromostyrene and another monomer, preferably acrylonitrile, are made by emulsion polymerization to produce copolymers having 95 to 25 weight percent bromostyrene, the balance being the second monomer. The resulting copolymers have a high bromine content in the range 20 to 44 weight percent and may be used as such as a flame-resistant plastics material or admixed with other plastics such as the polyolefins to impart fire-resistance to the mixture. The copolymers produced exhibit good mechanical properties and fire-resistance values.