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:
Apr. 05, 1983
Filed:
Aug. 06, 1980
Applicant:
Inventors:
Karl-Hans Muller, Brochkobel, DE;
Walter Barthel, Langenselbold, DE;
Assignee:
Degussa AG, Frankfurt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
1062 / ; 10628734 ;
Abstract
Powdery bitumen concentrates are prepared containing 10 to 85 weight %, preferably 40 to 80 weight %, of synthetic silica. The concentrate is used in asphalt mixtures for building roads to give high stiffening value thereto.