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. 24, 1991
Filed:
May. 04, 1990
Applicant:
Inventors:
Thomas C Yu, Chatham, NJ (US);
Robert C Puydak, Cranbury, NJ (US);
Charles W Degener, Toms River, NJ (US);
Assignee:
Advanced Elastomer Systems, L. P., St. Louis, MO (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ; C08L / ; C08L / ; C08L / ; C08L / ;
U.S. Cl.
CPC ...
525194 ; 525 88 ; 525192 ; 525197 ; 525198 ; 525221 ; 525227 ; 525232 ; 525240 ; 525941 ; 524525 ; 524528 ;
Abstract
A dynamically vulcanized thermoplastic composition is provided which comprises a polymer blend of a polyolefin resin, a halogenated elastomeric copolymer, such as a halogenated butyl rubber, or a halogenated copolymer of a C.sub.4 to C.sub.7 isomonoolefin and a para-alkylstyrene, and a halogenated polyethylene. The composition has improved flame retarding properties. Additional flame retarding additives may be incorporated in the composition. The dynamically vulcanized thermoplastic composition is suitable for use in roofing sheets.