Abstract: A process for the continuous preparation of a granular detergent composition or component having a bulk density greater than 650 g/l which comprises the steps of: i) dispersing a detergent active paste throughout a powder stream in a high speed mixer with a residence time of from 2 seconds to 30 seconds, ii) forming an agglomerate in a moderate speed mixer/agglomerator with a residence time of less than 2 minutes, in which, optionally, a finely divided powder may be added, iii) drying and/or cooling. Granular detergent compositions which are made by this process, and which have excellent solubility properties especially with respect to dispensing and rate of dissolution are also described.
Type:
Grant
Filed:
January 30, 1995
Date of Patent:
September 2, 1997
Assignee:
The Procter & Gamble Company
Inventors:
Paul Van Dijk, Jose Luis Vega, Haydn Guy William Dickenson
Abstract: Polyaminoacid builders or co-builders having the general formula: ##STR1## that are useful in the formulations of detergents are disclosed. Preferred detergent formulations contain from 5 to 50 percent by weight of the polyaminoacid builder, preferably polyaspartic aicd or polyglutamic acid, together with surface-active agents, aluminosilicates and other detergent additives.
Type:
Grant
Filed:
June 14, 1994
Date of Patent:
August 19, 1997
Assignee:
Rohm and Haas Company
Inventors:
Annick Du Vosel, Franco Francalanci, Paola Maggiorotti
Abstract: Detergent tablets, compacted from detergent powder containing detergent active and detergency builder, contain a polymer which acts as binder and as a disintegrant when the tablets are added to water. Preferably the binder is sprayed into the powder before compaction. The strength of such tablets is improved, without detriment to other properties, by tabletting at a temperature above ambient but below melting point of the polymeric binder. Preferably the temperature is only 5.degree. C. to 10.degree. C. below the melting point of the binder.
Type:
Grant
Filed:
November 13, 1995
Date of Patent:
August 19, 1997
Assignee:
Lever Brothers Company, Division of Conopco, Inc.
Inventors:
Alan Phillip Davies, Sara Jane Edwards, Pauline Farnworth, Douglas Wraige
Abstract: A nonionic powdery detergent composition which is free from bleeding of a nonionic surfactant, does not exhibit any deterioration in its solubility even after the passage of time and has an excellent detergency against a fatty acid soil, which comprises 12 to 50% by weight of (a) a nonionic surfactant having a melting point of 40.degree. C. or below, 3 to 60% by weight of (b) a specified crystalline layer silicate, and 5 to 30% by weight of (c) a porous oil-absorbent carrier having an oil absorbability of 80 ml/100 g or more, and a process for producing the nonionic powdery detergent composition.
Abstract: A detergent or cleaning composition containing a copolymeric polycarboxylic acid or salt thereof which is a terpolymer of (a) a monoethylenically unsaturated C.sub.3-8 carboxylic acid, (b) a 2-alkyl or aryl allylsulfonic acid, and (c) a carbohydrate. The invention also relates to builder compositions containing the above terpolymer.
Type:
Grant
Filed:
September 15, 1995
Date of Patent:
July 8, 1997
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Beatrix Kottwitz, Joerg Poethkow, Peter Krings, Horst Upadek
Abstract: A granular, powdered detergent comprising a blend of first and second components, said first component comprising a first portion of a flowable powder detergent builder with a liquid surfactant, and an effective amount of a finely divided barrier particle material and a second component comprising a second portion of flowable powder detergent builder, such that the first portion of detergent builder comprises from about 10% to about 90% of the total amount of detergent builder in the resulting composition.
Abstract: Stable suspensions of zeolite particulates, in water, well adapted for detergency applications, have a pumpable low viscosity and include an effective viscosity reducing amount of a siliconate and/or a siliconate derivative and, advantageously, a suspension stabilizer, e.g., an alkaline earth metal cation or a biogum polysaccharide.
Abstract: The synthesized inorganic crystalline ion exchange material has a composition represented by the following general formula in an anhydride form:aX.sub.2 O.bSiO.sub.2.cX'O,wherein X represents Na and K; X' represents Ca, or Ca and Mg; b/a is 1.4 to 2.1; c/a is 0.001 to 0.35; K/Na in X.sub.2 O is 0.09 to 1.11; Mg/Ca in X'O is 0 to 100; and K.sub.2 O/SiO.sub.2 is 0.06 to 0.25. The synthesized inorganic crystalline ion exchange material exhibits main shift peaks at least at 1080.+-.6 cm.sup.-1 in Raman scattering spectra in the range of from 900 to 1200 cm.sup.-1. The inorganic ion exchange material of the present invention is excellent in cationic exchange capacity, cationic exchange speed, and anti-solubility, making it useful to be used for a water softener and an alkalinity adjusting agent in detergents.
Abstract: The present invention is a granular colorant speckle exhibiting reduced colorant spotting, the speckle which comprises:(a) an insoluble dispersible carrier;(b) a surfactant; and(c) a substantive agent.The present invention also discloses a method for forming a colorant speckle suitable for use as a granular laundry detergent component, or a laundry additive. The speckle of the present invention is preferably produced by an agglomeration process utilizing, for example, a fluid-bed or rotary falling curtain type agglomerator.
Type:
Grant
Filed:
November 8, 1995
Date of Patent:
February 25, 1997
Inventors:
Robert J. Iliff, Linda A. Bernard, Erle D. Mankin
Abstract: The invention comprises a dye transfer inhibiting fabric softening composition comprisinga) 0.0001% to 10% by weight of poly(4-vinylpyridine-N-oxide) having a ratio of amine to amine N-oxide of from about 2:3 to about 1:1,000,000; andb) 0.5% to 30% by weight of a fabric softening clay.
Abstract: Oil based paint containing lead compounds is removed from a substrate on which it is deposited by application of an aqueous solution thereto. The solution comprises a solvent that does not dissolve the paint and is compatible with water; a film former for retarding evaporation; a viscosity builder to fortify the solution and prevent slumping thereof during application to vertical and overhead horizontal surfaces; an alkaline compound for reacting with the pigment portion of the paint. Advantageously, the solution penetrates the deposited paint, which coagulates and separates from the substrate. Stripping procedures are facilitated, and neutralization of the substrate prior to repainting is avoided. A safe and effective treatment of materials covered with lead-containing paint is carried out in an economical, cost efficient manner.
Abstract: The invention is a process for producing surfactant granules by mixing a water-containing surfactant with a solid to form granules, drying the granules and recycling the dried granules as a portion of the solid.
Type:
Grant
Filed:
October 17, 1994
Date of Patent:
January 28, 1997
Assignee:
Henkel Kommanditgesellschaft auf Aktien
Inventors:
Volker Bauer, Wilfried Raehse, Andreas Syldath, Ditmar Kischkel
Abstract: The present invention relates to light and heat reactive paint or polymer stripping compositions preferably employing biodegradable components such as conjugated terpenes and related polyenes in combination with an alcohol such as a phenyl substituted benzyl alcohol for use in removing polymeric materials from substrates, in particular, cured paint from hard and/or flexible surfaces. The compositions avoid the use of methylene chloride, phenol, corrosives and caustics, methanol, toluol or acetone. Compositions according to the present invention preferably have flash points above about 49.degree. C. (about 120.degree. F.) and a pH which is preferably neutral.Methods of stripping polymeric coatings from surfaces and methods of making these compositions are also described.
Abstract: A particulate foam control agent comprises 1 to 30 parts silicone antifoam, 70 to 99 parts zeolite carrier, 1 to 60% of the antifoam of an organopolysiloxane polyoxyalkylene copolymer, deposited onto the zeolite carrier not later than the antifoam and 1 to 40 parts by weight of a polycarboxylate-type binder or encapsulant. This combination give good release in early stages, storage stability and powder characteristics.
Type:
Grant
Filed:
July 22, 1994
Date of Patent:
December 31, 1996
Assignee:
Dow Corning S.A.
Inventors:
Leonidas Kolaitis, Bertrand L. J. Lenoble, Mark A. Prince
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
Abstract: A nonionic powdery detergent composition having high solubility and dispersibility which are not impaired even when used for washing in high-temperature water and an excellent caking resistance even during storage under a highly humid condition, which contains, as a starting detergent material used for absorbing the nonionic surfactant, an amorphous aluminosilicate having a composition represented by the following formula (I):x(M.sub.2 O).y(MeO).Al.sub.2 O.sub.3.z(SiO.sub.2) (I)wherein M represents an alkali metal atom, Me represents an alkaline earth metal atom, and x, y and z represent the molar numbers of the respective components, with the proviso that they satisfy the following relationship:0.2.ltoreq.x.ltoreq.2.0, 0.ltoreq.y.ltoreq.0.1 and 1.5.ltoreq.z.ltoreq.6.0,and having an oil-absorbing capacity of at least 100 ml/100 g and a water content of 5 to 20% by weight, and wherein the volume of pores having diameters of smaller than 0.1 .mu.
Abstract: Soil removal performance of granular laundry detergents containing aluminosilicate builders is improved by presence of polyaspartic acid (or its water-soluble salts) as a co-builder/soil dispersant.