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:
May. 19, 1992
Filed:
Oct. 15, 1990
Werner Siegmund, deceased, late of Heiligkreuzsteinach, DE;
Wilhelm Kamereit, Dusseldorf, DE;
Oskar M Schmitt, Stolberg, DE;
Volker Weidmann, Den Haag, DE;
Otto J Friedrich, Dusseldorf, DE;
Mannesmann Aktiengesellschaft, Dusseldorf, DE;
Abstract
Preparation of a fine-grained mixture having hydrophobic properties and a grain size substantially less than 0.2 mm and preferable less than 0.1 mm for asphalt-treatment and de-icing, having a hydrophobic component with a hydrophilic component of at least 50% by weight of the mixture and having 55-99.5% by weight of a residual salt which results from the production of glycerol and 45-0.05% by weight of an additive consisting of salts, oxides, hydoxides, and combinations thereof, in the moist condition and at least partially ground with the residual salt, and containing alkali-earth metal or other non-alkali metals as cations.