Sulfur Containing Anionically Substituted Surfactant Which Is Admixed With A Diverse Non-soap Surfactant Patents (Class 510/351)
  • Patent number: 5635466
    Abstract: A concentrated aqueous surfactant solution comprising alkyl ether sulphate and alkaline earth metal, preferably magnesium. The composition is a stable liquid which is suitable for making into cleaning products, especially dish washing liquids. The concentrated surfactant solution can be prepared by partial neutralisation of the acid precursor with the hydroxide or oxide of the alkaline earth metal, followed by a further neutralisation with the hydroxide of an alkali metal or ammonium.
    Type: Grant
    Filed: October 20, 1995
    Date of Patent: June 3, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Allan Burdon, Katherine J. Cope, Wendy Coppenrath, Guy Stasino, Brian E. Talkes, Stefano Zenezini
  • Patent number: 5632780
    Abstract: 1,2-Octanediol is used to clean soiled fabrics. Thus, cleaning compositions comprising 1,2-octanediol, preferably in combination with solvents, are impregnated into carrier sheets. The sheets are tumbled with soiled fabrics inside of a plastic bag. The resulting home dry cleaning process leaves the fabrics clean and refreshed.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: May 27, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Michael P. Siklosi
  • Patent number: 5630848
    Abstract: A home dry cleaning article is provided. Thus, a hydroentangled carrier sheet comprising mixed cellulosic, rayon, polyester and optional bicomponent fibers which is releasably impregnated with solvents such as butoxy propoxy propanol, 1,2-octanediol as a wetting agent, water and an emulsifier is prepared. The article is placed in a plastic bag with soiled garments and tumbled in a hot-air clothes dryer. The garments are cleaned and refreshed.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: May 20, 1997
    Assignee: The Procter & Gamble Company
    Inventors: Terrill A. Young, Jane L. Bavely, Timothy C. Roetker, Maxwell G. Davis
  • Patent number: 5607618
    Abstract: The present invention relates to the the use of water-soluble copolymers based on acrylamidoalkylenesulfonic acid, vinylacetamide and, if appropriate, other monomers, comprising5-90% by weight of structural units of the formula ##STR1## in which R.sup.1 is hydrogen or methyl,R.sup.2 is C.sub.2 -C.sub.10 -alkylene, preferably C.sub.2 -C.sub.6 -alkylene, particularly preferably C.sub.4 -alkylene, andMe is ammonium or an alkali metal ion,5-95% by weight of structural units of the formula ##STR2## in which R.sup.3 and R.sup.4 independently of one another are hydrogen, methyl or ethyl, or R.sup.3 and R.sup.4 together are a propylene group which, including a radical ##STR3## form a pyrrolidone radical, 0-90% by weight of structural units of the formula ##STR4## in which X is a halogen, preferably chloride,R.sup.5 and R.sup.6 independently of one another are C.sub.1 -C.sub.6 -alkyl, prefrably C.sub.1 -C.sub.3 -alkyl, in particular methyl or ethyl, and0-90% by weight of structural units of the formula --CHR.sup.
    Type: Grant
    Filed: August 19, 1993
    Date of Patent: March 4, 1997
    Assignee: Hoechst Aktiengesellschaft
    Inventors: Werner Antwerpen, Martin Hille, Gerd Reinhardt
  • Patent number: 5591236
    Abstract: Aqueous cleaning compositions containing solvents such as butoxy propoxy propanol (BPP) are emulsified using low levels of polyacrylate emulsifiers. Thus, an emulsion comprising BPP, a polyacrylate, optional surfactants, optional 1,2-octanediol and water is applied to fabrics in a home dry cleaning operation.
    Type: Grant
    Filed: October 17, 1995
    Date of Patent: January 7, 1997
    Assignee: The Procter & Gamble Company
    Inventor: Timothy C. Roetker
  • Patent number: 5583098
    Abstract: A particulate detergent composition having a bulk density of at least 650 g/l which is not the product of a spray-drying process consists of a substantially homogeneous granular base and optional postdosed ingredients. The composition comprises a surfactant system, alkali metal aluminosilicate builder, and a water-soluble salt of citric acid, preferably sodium citrate, and optionally other ingredients. The delivery and dissolution characteristics of the composition in the wash are improved if citrate of Rosin Rammler particle size less than 800 .mu.m is incorporated within the granular base. The composition may also contain postdosed citrate of unrestricted particle size.
    Type: Grant
    Filed: November 17, 1994
    Date of Patent: December 10, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Jelles V. Boskamp, Mark P. Houghton, Christophe Joyeux, Carolyn A. Rowe, Cornelis E. J. van Lare, Gilbert M. Verschelling, Petra Zuidgeest
  • Patent number: 5574004
    Abstract: A non-bleaching laundry detergent composition, wherein the solids content comprises an active surfactant, at least about 70 wt. % of a water soluble alkaline carbonate, e.g., sodium carbonate, a minor amount of a polymeric polycarboxylate, e.g., an acrylic acid polymer, and a minor amount of elemental zinc in the form of a water soluble salt, e.g., a hydrated or anhydrous zinc sulfate, such as zinc sulfate heptahydrate or monohydrate, based on the total weight of solids in the composition. Incorporation of a polymeric polycarboxylate and zinc ions in the foregoing laundry detergent composition containing carbonate ions has the effect of significantly reducing fabric encrustation caused by the precipitation of calcium carbonate.
    Type: Grant
    Filed: November 15, 1994
    Date of Patent: November 12, 1996
    Assignee: Church & Dwight Co., Inc.
    Inventor: Charles D. Carr
  • Patent number: 5565137
    Abstract: A process for preparing high density detergent agglomerates having a density of at least 650 g/l is provided. The process comprises the steps of: (a) continuously mixing a detergent surfactant paste and dry starting detergent material into a high speed mixer/densifier to obtain detergent agglomerates, wherein the ratio of the surfactant paste to the dry detergent material is from about 1:10 to about 10:1; (b) mixing the detergent agglomerates in a moderate speed mixer/densifier to further densify and agglomerate the detergent agglomerates; and (c) drying said detergent agglomerates so as to form the high density detergent composition. The process may include one or more additional processing steps such as adding a coating agent after the moderate speed mixer/densifier to facilitate and control agglomeration.
    Type: Grant
    Filed: May 20, 1994
    Date of Patent: October 15, 1996
    Assignee: The Proctor & Gamble Co.
    Inventor: Scott W. Capeci
  • Patent number: 5552078
    Abstract: A powdered laundry detergent composition comprising an active surfactant, at least about 70 wt. % of a water soluble alkaline carbonate salt, e.g., sodium carbonate, about 0.1 to 2 wt. % of a phosphorus-containing sequestering agent, e.g., sodium tripolyphosphate (STPP), about 0.1 to 2 wt. % of a polymeric polycarboxylate, e.g., a polyacrylate or a polymaleate, and about 1-12 wt. % water. Use of the foregoing detergent composition provides excellent cleaning and whitening of fabrics while avoiding the problem of eutrophication which occurs when a substantial amount of a phosphorus containing builder such as STPP is present in the composition, and while minimizing the problem of fabric encrustation often present when the composition contains a large amount of carbonate builder.
    Type: Grant
    Filed: December 21, 1994
    Date of Patent: September 3, 1996
    Assignee: Church & Dwight Co., Inc.
    Inventors: Charles D. Carr, Steven A. Bolkan, Joseph G. Becker
  • Patent number: 5536432
    Abstract: A process for the production of a detergent composition having a predetermined relative humidity comprising forming a crude detergent composition having a relative humidity in excess of the predetermined level, for example in excess of 30% and contacting the said crude composition with a preconditioned gas having a relative humidity below the predetermined relative humidity wherein the temperature of the crude composition is maintained below the temperature at which the crude composition agglomerates thereby to form a low relative humidity detergent composition.
    Type: Grant
    Filed: November 1, 1994
    Date of Patent: July 16, 1996
    Assignee: Lever Brothers Company, Division of Conopco, Inc.
    Inventors: Craig Cicciari, Cornelis E. Van Lare