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:
Feb. 11, 1992
Filed:
Jun. 30, 1989
Applicant:
Inventor:
Lance A Christell, Prospect, KY (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
524 59 ; 524 60 ;
Abstract
Blends of asphalt and 0.1 to 5 weight percent of a chloroprene polymer are disclosed. The chloroprene polymers can contain up to 12 weight percent 2,3-dichlorobutadiene-1,3 a vinyl monomer or mixtures thereof. The chloroprene polymers are mercaptan-modified or dialkyl- or dialkoxy xanthogen disulfide-modified chloroprene polymers having a gel content of 10 to 50 weight percent and preferably from 20 to 40 weight percent.