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:
Mar. 30, 1982
Filed:
Sep. 12, 1979
Applicant:
Inventors:
Karl-Hans Muller, Bruchkobel, DE;
Walter Barthel, Langenselbold, DE;
Assignee:
Deutsche Gold- und Silber-Scheideanstalt vormals Roessler, Frankfurt, DE;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
1062 / ;
Abstract
Mastic asphalt mixture for road, building and industrial construction, which contains 0.1 to 2% by weight of silica. For example, a precipitated silica, a precipitated and spray dried, or a pyrogenously produced silica may be used as a synthetic silicic acid. The content of synthetic silica produces an essentially higher degree of hardness in the finished mastic asphalt layer.