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:
Aug. 21, 1990
Filed:
Dec. 08, 1988
Hans-Peter Rieck, Hofheim am Taunus, DE;
Martin Schott, Steinbach, DE;
Willy Ott, Kelkheim, DE;
Werner Gohla, Niederkassel, DE;
Hoechst Aktiengesellschaft, Frankfurt am Main, DE;
Abstract
X-ray crystalline sodium silicates having a sheet structure and an SiO.sub.2 :Na.sub.2 O molar ratio of 1.9 to 3.5 are prepared by dissolving an X-ray crystalline sodium silicate having a sheet structure and an SiO.sub.2 /Na.sub.2 O molar ratio of 1.9:1 to 3.5:1 in water and evaporating the solution at temperatures of 20.degree. to 445.degree. C. For the preparation of detergents or cleaners, a mixture of surfactants and builders, which may also contain fillers, bleaching agents, bleach activators and enzymes, is made into a paste with water, mixed with an X-ray crystalline sheet sodium silicate having an SiO.sub.2 /Na.sub.2 O molar ratio of 1.9:1 to 3.5:1, mixed thoroughly and then spray-dried.