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. 23, 1991
Filed:
Oct. 24, 1989
Connie L Merrill, Katy, TX (US);
Donald L Wood, Houston, TX (US);
Shell Oil Company, Houston, TX (US);
Abstract
A nonionic surfactant based powdered laundry detergent formulation which consists essentially of between about 15 and about 25 percent by weight of one or more nonionic surfactants, between about 1 and 10 percent by weight of one or more of certan carboxysulfonate compounds which may be prepared, for example, by the direct reaction of a hydrocarbyl succinic anhydride with either an aminoalkyl sulfonate or a salt of isethionic acid, between about 2 and about 10 percent by weight of a silicate salt anticorrosion agent, between about 2 and about 40 percent by weight of detergent builder, and a sulfate salt filler. The combination of nonionic surfactant and anionic carboxysulfonate surfactant in the formulation provides a highly effective detergent performance. However, the formulation retains the beneficial properties of mildness, low foam generation, and biodegradability characteristic of nonionic surfactants. The formulation is very effective for removal of particulate soils from fabrics and for preventing their redeposition onto the fabrics during the laundry wash cycle.
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile