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. 20, 1982
Filed:
Dec. 15, 1980
Applicant:
Inventors:
Alan C Aldred, North Cheam, GB;
Brian Weeks, Epsom, GB;
Assignee:
The British Petroleum Company Limited, London, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524 59 ; 524 68 ; 524587 ;
Abstract
Blends of chlorosulphonated polyethylene and defined bituminous material are modified by the addition of not more than 15% by weight, based on total weight of chlorine-containing synthetic elastomer, of a thermoplastic olefin polymer having a softening point in the range 110.degree.-160.degree. C. The incorporation of this polymer reduces shrinkage when sheets formed from the blend are exposed to heat while in use.