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. 10, 1988
Filed:
Jul. 18, 1984
Applicant:
Inventor:
Pierre Hirsbrunner, Les Monts-de-Corsier, CH;
Assignee:
SAREA AG, Cham, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C05C / ;
U.S. Cl.
CPC ...
71 28 ; 71903 ; 405264 ; 106900 ;
Abstract
A process for treating soil which comprises applying to the soil an aqueous solution of a formaldehyde-based pre-condensate containing a condensation initiator in an amount sufficient for condensation to be completed within a predetermined period of time not exceeding 24 hours. Preferably a urea-formaldehyde pre-condensate is used. Advantageously the solution also contains a polysaccharide (alginic acid, alginate, low methoxyl pectin, gum karaya, gum arabic) which is capable of forming a gel with divalent metal cations, particularly calcium, present in soil. The treated soil has improved erosion resistance.