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. 26, 1988
Filed:
Dec. 19, 1986
Applicant:
Inventors:
Rudolf Burkhardt, Troisdorf, DE;
Hansjurgen Hass, Troisdorf-Spich, DE;
Assignee:
Dynamit Nobel AG, Troisdorf Bez Cologne, DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B01J / ; C09K / ; F02D / ;
U.S. Cl.
CPC ...
405264 ; 106 74 ; 2523152 ; 2523155 ; 2523156 ; 405270 ;
Abstract
A soil injection agent on an alkali metal silicate basis, containing as gelling agent trialkoxysilanes of the formula R-Si(OR').sub.3, in which R is an aliphatic moiety of 1 to 6 carbon atoms and R' represents equal or different alkyl moieties of 1 to 4 carbon atoms, is adjusted for properties by the addition of acid alkali metal phosphates or ammonium phosphates and/or phosphoric acid. The addition improves the sealing and strengthening action of the gels and permits a reduction of the silane content, without impairing the resistance of the gels to pollutants.