Coated Or Encapsulated Solid Material, Or Process Of Preparing Patents (Class 510/441)
-
Patent number: 6156718Abstract: A process for making a detergent composition comprises the steps of: (i) mixing together at least two non-surfactant additives to form a premix; (ii) spraying all of the nonionic surfactant on to the premix to form a first intermediate particle; (iii) subsequently mixing the first intermediate particle with a second intermediate particle, wherein the second intermediate particle comprises anionic surfactant.Type: GrantFiled: January 4, 1999Date of Patent: December 5, 2000Assignee: The Procter & Gamble CompanyInventors: Scott John Donoghue, Marcel Karel Nelis Liplijn, Carole Patricia Denise Wilkinson
-
Patent number: 6150323Abstract: A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the steps of (a) dispersing a surfactant, and coating the surfactant with fine powder in a mixer, wherein first agglomerates are formed, (b) thoroughly mixing the first agglomerates in a mixer, wherein second agglomerates are formed, and (c) granulating the second agglomerates in one or more fluidizing apparatus. The process can also comprise further step (b'), i.e., spraying finely atomized liquid onto the second agglomerates in a mixer, between step (b) and step (c).Type: GrantFiled: April 1, 1999Date of Patent: November 21, 2000Assignee: The Procter & Gamble CompanyInventors: Angela Gloria Del Greco, Wayne Edward Beimesch, Manivannan Kandasamy
-
Patent number: 6143711Abstract: A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the steps of (a) dispersing a surfactant and coating the surfactant with fine powder having a diameter from 0.1 to 500 microns in a mixer fitted with choppers, and (b) granulating the agglomerates in one or more fluidizing apparatus, wherein finely atomized liquid is sprayed onto the first agglomerates in a mixer between step (a) and (b).Type: GrantFiled: April 1, 1999Date of Patent: November 7, 2000Assignee: The Procter & Gamble CompanyInventors: Angela Gloria Del Greco, Wayne Edward Beimesch
-
Patent number: 6136777Abstract: A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the overall steps of: (a) dispersing a surfactant, and coating the surfactant with fine powder in a mixer, wherein first agglomerates are formed; (b) spraying finely atomized liquid onto the first agglomerates in a mixer, wherein second agglomerates are formed; and (c) granulating the third agglomerates in one or more fluidizing apparatus. The process is improved by further step (b'), by thoroughly mixing the second agglomerates in a mixer, between step (b) and step (c), wherein, in step (b'), choppers are used to reduce the amount of oversized agglomerates.Type: GrantFiled: April 1, 1999Date of Patent: October 24, 2000Assignee: The Procter & Gamble CompanyInventors: Angela Gloria Del Greco, Wayne Edward Beimesch, Manivannan Kandasamy
-
Patent number: 6130194Abstract: A detergent composition containing an inexpensive detergent builder in the form of a selected crystalline calcium carbonate that has been coated with a hydrotrope is provided. The crystalline calcium carbonate can be calcite and the hydrotrope can be xylene sulfonate. The crystalline calcium carbonate of the present invention is extremely inexpensive because it performs well even when used at large median particle sizes (e.g. less than 10 m.sup.2 /g surface areas).Type: GrantFiled: March 2, 1998Date of Patent: October 10, 2000Assignee: The Procter & Gamble CompanyInventors: Eugene Joseph Pancheri, Ronald Allen Swift
-
Patent number: 6121229Abstract: A non-tower process for continuously preparing granular detergent composition having a density of at least about 600 g/l is provided. The process comprises the overall steps of (a) dispersing a surfactant, and coating the surfactant with fine powder having a diameter from 0.1 to 500 microns, in a mixer, wherein first agglomerates are formed, (b) spraying on finely atomized liquid to the first agglomerates in a mixer, wherein second agglomerates are formed, and (c) the second agglomerates are thoroughly mixed in a mixer to provide rounding and growth.Type: GrantFiled: April 1, 1999Date of Patent: September 19, 2000Assignee: The Procter & Gamble CompanyInventors: Angela Gloria Del Greco, Manivannan Kandasamy
-
Patent number: 6114289Abstract: A detergent composition containing an inexpensive detergent builder in the form of a selected crystalline calcium carbonate that has been coated with an encapsulating material such as a carbohydrate is provided. The crystalline calcium carbonate can be calcite and the encapsulating material can be sucrose. The crystalline calcium carbonate of the present invention is extremely inexpensive because it performs well even when used at large median particle sizes (e.g. less than 10 m.sup.2 /g surface areas).Type: GrantFiled: March 2, 1998Date of Patent: September 5, 2000Assignee: The Procter & Gamble CompanyInventors: Scott William Capeci, Eugene Joseph Pancheri
-
Patent number: 6100232Abstract: A process for preparing a detergent composition is provided. The process involves: (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; and (b) mixing the detergent agglomerates in a moderate speed mixer/densifier to further densify and agglomerate the detergent agglomerates. The dry detergent material contains a builder which is a selected crystalline calcium carbonate material substantially having a rhombohedral crystalline structure with {1,0,-1,1} crystallographic indices.Type: GrantFiled: March 2, 1998Date of Patent: August 8, 2000Assignee: The Procter & Gamble CompanyInventors: Scott William Capeci, Eugene Joseph Pancheri
-
Patent number: 6096703Abstract: Disclosed is a process for making a detergent composition comprising the steps of:i) making a detergent based composition comprising a solid acid source;ii) coating the solid acid source with a detergent surfactant; andiii) further adding an alkaline source and agglomerating said alkaline source with said acid source;and wherein the alkaline source and the acid source are capable of reacting together to produce a gas. Detergent compositions thus prepared show improved dispersability. Methods of laundering fabrics using such detergent compositions are disclosed.Type: GrantFiled: February 1, 1999Date of Patent: August 1, 2000Assignee: The Procter & Gamble CompanyInventor: Robin Gibson Hall
-
Patent number: 6093688Abstract: The speed of disintegration of tablets containing a water-softening agent, especially water-insoluble, water-softening agent intended as detergency builder for fabric washing is enhanced by incorporating sodium acetate trihydrate, potassium acetate or a mixture thereof. To inhibit caking and facilitate handling during manufacture, smaller particles of another substance are preferably provided at the surface of the crystals of the acetate or citrate.Type: GrantFiled: March 29, 1999Date of Patent: July 25, 2000Assignee: Unilever Home & Personal Care USAInventor: James William Gordon
-
Patent number: 6093343Abstract: The present invention relates to bleach catalyst containing composite particles suitable for incorporation into particulate detergent compositions, said composite particles comprising by weight of the particles a) from 1% to 50% of a metal containing bleach catalyst; b) from 40% to 99% of an encapsulating material; and c) from 0.5% to 20% water.Type: GrantFiled: August 7, 1998Date of Patent: July 25, 2000Assignee: The Procter & Gamble CompanyInventors: Michael Crombie Addison, Barry Rowland, Fiona Susan MacBeath
-
Patent number: 6087311Abstract: Tablets comprise a core and a coating, the core being formed by compressing a particulate material, the particulate material comprising surfactant and detergent builder, and the coating comprising dicarboxylic acid. The tablets are provided with effervescent agents, in the core or water-swellable desintegrant in the coating which aid in their disintegration in wash liquors. The invention also relates to processes for making the tablets.Type: GrantFiled: June 4, 1999Date of Patent: July 11, 2000Assignee: The Proctor & Gamble CompanyInventor: Paul Irma Albertus Van Dijk
-
Patent number: 6063747Abstract: This is provided a detergent composition in compacted solid form containing(a) an organo diphosphonate crystal growth inhibitor; and(b) an alkalinity system comprising alkaline salts selected from the group consisting of alkali and alkaline earth carbonates, bicarbonates, hydroxides and silicateswherein at least part of the alkalinity system comprises particulate alkaline salts coated with an organic binder and the weight ratio of organic binder to alkalinity system in the detergent composition is from 1:100 to 1:1. A making process is also provided.Type: GrantFiled: July 31, 1998Date of Patent: May 16, 2000Assignee: The Procter & Gamble CompanyInventor: Jane Margaret Warwick
-
Patent number: 6048830Abstract: A laundry agent delivery particle is provided. The particle comprises: a) a porous carrier selected from the group consisting of Zeolite X, Zeolite Y and mixtures thereof, the porous carrier including a number of pore openings; and b) a release barrier having at least one deliverable agent residue and at least one size enlarging agent residue, the deliverable agent residue being incorporated into the porous carrier, the size enlarging agent residue having a hydrophilic portion and a hydrophobic portion, the hydrophilic portion incorporated into the porous carrier and in conjunction with the deliverable agent residue forming the release barrier wherein the cross-sectional area of the release barrier within the porous carrier is larger than the cross-sectional area of the pore openings of the porous carrier. Preferred size enlarging agents include those having a fatty chain or alcohol chain in the hydrophobic portion, such as nonionic surfactants.Type: GrantFiled: September 22, 1998Date of Patent: April 11, 2000Assignee: The Procter & Gamble CompanyInventors: Lois Sara Gallon, William Richard Mueller, Robert Ya-Lin Pan
-
Patent number: 6028043Abstract: Liquid personal cleansing compositions which comprise a complex coascervate, a lipophilic skin moisturizing agent, a stabilizer, a lathering surfactant and water are disclosed. The complex coascervate comprises particles having a particle size distribution such that at least about 10% by weight of the particles have a diameter of at least about 20 microns. The particles comprising the complex coascervate comprise 1) a polycation having a minimum filtrate with of about 10 grams, and 2) a polyanion. The complex coascervate is essentially free of cross-linking agent.Type: GrantFiled: November 17, 1998Date of Patent: February 22, 2000Assignee: The Procter & Gamble CompanyInventors: Robert Wayne Glenn, Jr., Mark Richard Sine, Mark David Evans, Mary Elizabeth Carethers, Sarah Christine Heilshorn
-
Patent number: 6025319Abstract: A laundry additive particle having multiple coatings and compositions employing the particle are provided. The laundry additive particle comprises a porous carrier core material; a first encapsulating material coated on the core material to form an intermediate layer, the first encapsulating material comprising a glassy material derived from one or more at least partially water-soluble hydroxylic compounds having an anhydrous, nonplasticized, glass transition temperature, T.sub.g, of at least about 0.degree. C.; and a second encapsulating material coated on the intermediate layer to form an outer layer, the second encapsulating material comprising a carbohydrate material having an anhydrous, nonplasticized, glass transition temperature, T.sub.g, of at least about 130.degree.0 C.; and the laundry additive particle has a hygroscopicity value of less than about 80%. Preferably, a laundry or cleaning agent such as a perfume is supported on or contained in the porous carrier.Type: GrantFiled: September 18, 1998Date of Patent: February 15, 2000Assignee: Procter & Gamble CompanyInventors: Athanasios Surutzidis, Michael J. LeBlanc
-
Patent number: 6017873Abstract: Two processes for producing agglomerated high density detergent compositions are provided. On process comprises blending secondary (2,3) alkyl sulfate with a detergency builder to form a homogeneous powder mixture which is agglomerated with a surfactant paste mixture comprising C.sub.10-20 linear alkylbenzene sulfonates, C.sub.10-20 alkyl sulfates, C.sub.10-18 alkyl ethoxy sulfates having from about 1 to about 7 ethoxy groups, alcohol ethoxylates and polyethylene glycol and drying the agglomerates. Another process comprises blending secondary (2,3) alkyl sulfate with a detergency builder to form a homogeneous powder mixture which is agglomerated with a liquid acid precursor of C.sub.10-20 linear alkylbenzene sulfonate so as to form an agglomerated detergent composition which has a density of at least about 650 g/l.Type: GrantFiled: February 24, 1999Date of Patent: January 25, 2000Assignee: The Procter & Gamble CompnayInventors: Stephen William Sikra, James Bert Royston
-
Patent number: 6015784Abstract: Secondary (2,3) alkyl sulfate surfactants are admixed with an organic material such as a polyacrylate, and the resulting mixture is compacted into chips. The chips are comminuted to provide particles and the particles are coated with a free-flow aid. The resulting particles exhibit improved solubility and are especially useful in laundry detergents.Type: GrantFiled: March 10, 1999Date of Patent: January 18, 2000Assignee: The Procter & Gamble CompanyInventors: Takashi Kazuta, Fukuji Ebihara
-
Patent number: 5998360Abstract: Soluble alkali metal silicates combined with antiredeposition agents can actually have a beneficial effect on bleach stabilisation if said antiredeposition agents are intimately mixed with an alkali metal silicate solution, the resulting product being then dried (spray drying, turbo drying, etc . . . ) into granules.Type: GrantFiled: April 13, 1998Date of Patent: December 7, 1999Assignee: Crosfield LimitedInventors: Keith R Cockett, Theo J Osinga
-
Patent number: 5980580Abstract: A washing method characterized in that washing is carried out under conditions that a pH of a washing liquid starts increasing after a water hardness of the washing liquid starts decreasing; a detergent composition characterized by containing particles capable of delayed-exerting an alkalizing effect of a washing liquid, wherein a pH of a washing liquid starts increasing after a water hardness of the washing liquid starts decreasing; and a detergent composition comprising an alkalizing agent coated with an organic material, or organic and inorganic materials, the alkalizing agent occupying an amount of 70% by weight or more of the entire alkalizing agents in the detergent composition.Type: GrantFiled: May 1, 1997Date of Patent: November 9, 1999Assignee: KAO CorporationInventors: Shu Yamaguchi, Katsuhiko Kasai, Yoko Yamaguchi, Shigeru Tamura, Masaki Tsumadori, Hiroyuki Yamashita
-
Patent number: 5965515Abstract: Amine functionality-containing materials such as cationic cellulose-based compositions are coated to suppress their tendency to generate "amine odors" in an alkaline pH environment. Further provided are effervescent compositions, liquid or solid soap formulations, fabric softeners, shampoos and the like comprising such materials coated with a suitable coating composition.Type: GrantFiled: September 1, 1995Date of Patent: October 12, 1999Assignees: The Andrew Jergens Company, Kao CorporationInventor: Allen H. Rau
-
Patent number: 5958864Abstract: A process for producing a particulate amorphous alkali metal silicate having a molar ratio of M.sub.2 O to SiO.sub.2 of 1:1.5 to 1:3.3 bya) spray-drying an aqueous mixture of amorphous alkali metal silicate,b) impregnating the spray-dried amorphous alkali metal silicate with an aqueous dispersion or solution of detergent composition components containing at least one organic component, andc) optionally drying the impregnated amorphous alkali metal silicate.Type: GrantFiled: June 24, 1998Date of Patent: September 28, 1999Assignee: Henkel Kommandiggesellschaft auf AktienInventors: Rene-Andres Artiga Gonzalez, Hubert Freese, Manfred Greger, Kathrin Schnepp, Adolf Wiche
-
Patent number: 5955419Abstract: Laundry particles comprising: a) a porous carrier selected from the group consisting of Zeolite X, Zeolite Y, and mixtures thereof; and b) laundry agents comprising from about 5% to about 100% by weight of deliverable agents, preferably comprising from about 0.1% to about 50% blocker agents.Type: GrantFiled: April 4, 1997Date of Patent: September 21, 1999Assignee: The Procter & Gamble CompanyInventors: Dennis Joseph Barket, Jr., Jill Bonham Costa, Lois Sara Gallon, Janet Sue Littig
-
Patent number: 5955418Abstract: A process for preparing detergent particles containing secondary (2,3) alkyl sulfate surfactant comprises admixing secondary (2,3) alkyl sulfate surfactants with powdered detersive ingredients and admixing the resulting powder with a surfactant paste. The resulting detergent dough is extruded through an orifice and sized to provide particles. The particles are coated with a free-flow aid. The resulting detergent particles exhibit improved solubility and are especially useful in laundry detergents.Type: GrantFiled: September 8, 1998Date of Patent: September 21, 1999Assignee: The Procter & Gamble CompanyInventors: Takashi Kazuta, Fukuji Ebihara, Kinji Ogami
-
Patent number: 5945395Abstract: The method for producing nonionic detergent granules includes the steps of (I) blending the following (i) to (iii): (i) at least one of a nonionic surfactant and an aqueous nonionic surfactant solution; (ii) an acid precursor of an anionic surfactant capable of having a lamellar orientation; (iii) at least one of an alkali builder and an alkali, porous oil-absorbing carrier, to give a mixture of detergent starting materials containing the nonionic surfactant as a main surfactant component; and (II) heating the mixture obtained in step (I) at least up to a temperature capable of neutralizing the acid precursor of the anionic surfactant in an agitating mixer, and granulating while tumbling the agitating mixer thereby increasing a bulk density, to give nonionic detergent granules having a bulk density of from 0.6 to 1.2 g/ml.Type: GrantFiled: September 29, 1997Date of Patent: August 31, 1999Assignee: KAO CorporationInventors: Hiroyuki Yamashita, Koji Toyoda, Masaaki Sakaue, Yasuji Yamada, Teruo Kubota, Hiroshi Kogurusu
-
Patent number: 5942483Abstract: A high molecular weight, solid state active detergent made by mixing two pilled materials at a predetermined ratio, the detergent containing sodium lauryl sulfate, fatty alcohol polyoxyetbylene (9) ?ether (AEO-9)!, CMC (carboxymethyl cellulose), EDTA (ethylene diamine tetra-acetic acid), fluorescent whitening agent, sodium silicate pentahydrate (Na.sub.2 Sio.sub.3 5H.sub.2 O), sodium carbonate (Na.sub.2 CO.sub.3), E-44 (epoxy resin), polyamide resin, red iron oxide, zeolite A, and fragrance.Type: GrantFiled: February 10, 1998Date of Patent: August 24, 1999Inventor: Shiow Jiuan Freida Leu
-
Patent number: 5919747Abstract: Preparation of secondary (2,3) alkyl sulfate particles comprises admixing secondary (2,3) alkyl sulfate surfactants with a deagglomerating agent such as zeolite or silica. The resulting powder is agglomerated with a nonionic surfactant, and formed into particles. The particles are then coated with a free-flow aid. Secondary (2,3) alkyl sulfate particles treated in this manner have improved solubility characteristics for use in laundry detergents.Type: GrantFiled: September 8, 1998Date of Patent: July 6, 1999Assignee: The Procter & Gamble CompanyInventors: Takashi Kazuta, Fukuji Ebihara
-
Patent number: 5916868Abstract: A process for preparing a free-flowing high bulk density granular laundry detergent product comprises pre-blending a powder admixture comprising (1) between about 40-90 weight percent of a water soluble detergent builder wherein at least 70 weight percent of the detergent builder is sodium carbonate, and (b) between about 0.5-10 weight percent of alkali metal chloride salt, (2) forming a builder-surfactant powder by blending the step (1) admixture with between about 5-40 weight percent of a detergent active ingredient which is a blend of sulfated ethoxylated alcohols and nonionic ethoxylated alcohols, (3) subjecting the builder-surfactant powder to treatment with water under agglomerating conditions, and (4) drying the detergent composition to provide a free-flowing granular laundry detergent product having a bulk density of at least 650 grams per liter, and in which the detergent granule surfaces are coated with a glossy shell of alkali metal salt crystallites.Type: GrantFiled: June 30, 1998Date of Patent: June 29, 1999Assignee: Church & Dwight Co., IncInventors: Louis R. Mazzola, Anthony J. Falotico
-
Patent number: 5916866Abstract: In a process for making detergent tablets comprising spraying a coating of a water-soluble organic polymeric binder onto the exterior of particles of detergent composition containing detergent active and detergency builder and compacting the composition, the improvement comprises spraying an external coating of a film-forming water-soluble organic polymer onto the tablets. The coating on the tablet exterior reduces friability and abrasion and provides extra enhancement of strength while permitting disintegration/dissolution in a wash liquor.Type: GrantFiled: June 25, 1997Date of Patent: June 29, 1999Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: Alan Phillip Davies, Sara Jane Edwards, Douglas Wraige
-
Patent number: 5902782Abstract: Detergent compositions comprising polyamino acid compounds and salts thereof are provided. More particularly, detergent compositions containing a polyamino acid compound/protein particle comprising at least one polyamino acid compound coated with at least one protein, detergent compositions containing a polyamino acid compound/protein particle comprising at least one protein coated with at least one polyamino acid compound, and detergent compositions containing a polyamino acid compound/protein agglomerate are provided. The polyamino acid compound/protein particle and/or agglomerate resists degradation of the polyamino acid compound.Type: GrantFiled: February 5, 1998Date of Patent: May 11, 1999Assignee: Procter & Gamble CompanyInventors: Robin Gibson Hall, Alan David Willey
-
Patent number: 5898024Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and a metasilicate and/or sesquisilicate. A preferred cleaning composition further includes a surfactant and hydrated builder.Type: GrantFiled: January 9, 1997Date of Patent: April 27, 1999Assignee: Charvid Limited LiabilityInventor: Charles Bullick Talley
-
Patent number: 5891835Abstract: A cleaner impregnated towel comprises a flexible, porous substrate and, impregnated into the substrate, a cleaner formulation comprising d-limonene, dibasic acid ester, N-methyl-2-pyrrolidone, secondary alcohol ethoxylate, sodium lauryl sulfate, polysorbate 80, a salt of a coconut oil fatty acid ester of isethionic acid, glycerine, ethyl alcohol, an antimicrobial preservative, and optionally water.Type: GrantFiled: March 17, 1998Date of Patent: April 6, 1999Assignee: Dotolo Research CorporationInventor: Jack T. Vlasblom
-
Patent number: 5866531Abstract: A process for producing detergent tablets containing more than 10% by weight of anionic surfactant wherein the detergent tablets contain detergent components which are at least partly in hydrated form and the anionic surfactant is present in the form of one or more compounds containing up to 95% by weight of surfactants, by exposing a mixture of the detergent components and the anionic surfactant to microwaves in the frequency range from 3 to 300,000 MHz.Type: GrantFiled: March 26, 1997Date of Patent: February 2, 1999Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Georg Assmann, Hans-Friedrich Kruse, Jochen Jacobs, Volker Bauer, Guenther Vogt, Heinz-Manfred Wilsberg, Sandra Witt
-
Patent number: 5858952Abstract: The present invention provides an enzyme-containing granulated product containing, in a uniformly dispersed state, an enzyme and one or more stabilizers selected from the group consisting of reducing agents and antioxidants. The invention also discloses a method for the production of the granulated product, as well as bleaching agents and detergent compositions containing the granulated product. The granulated product loses only a minimal level of enzyme activity even in the copresence of a bleaching agent, and exhibits excellent solubility. Therefore, bleach compositions and detergent compositions prepared by incorporating the granulated product fully exhibit the enzyme activity and bleaching activity.Type: GrantFiled: November 27, 1996Date of Patent: January 12, 1999Assignee: Kao CorporationInventors: Yoshifumi Izawa, Takaaki Watanabe, Nobuharu Kotani
-
Patent number: 5854189Abstract: The process of producing break-resistant and storage-stable detergent tablets comprising coating powdered or crystalline detergent components present in anhydrous form or having a low degree of hydration with a hydrophobicizing agent, and tabletting the resulting mixture under pressure to produce tablets having a breaking strength of at least 150 N.Type: GrantFiled: September 13, 1996Date of Patent: December 29, 1998Inventors: Hans Kruse, Jochen Jacobs, Peter Jeschke
-
Patent number: 5846927Abstract: The present invention relates to improved matrix or core shell enzyme capsule compositions comprising certain density modifying solids and defined core structural ingredients. Using these capsule compositions, much better active stability is obtained. In addition, higher active retention is accomplished during capsule formation. Release characteristics are not compromised. In a second embodiment of the invention, the invention relates to structured heavy duty liquid compositions comprising these capsules.Type: GrantFiled: April 8, 1996Date of Patent: December 8, 1998Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventor: Tirucherai Varahan Vasudevan
-
Patent number: 5840668Abstract: The invention concerns perfumed, free flowing concentrated laundry detergent powders (concentrates), having a ratio of total solid constituents to total liquid constituents of less than 30:1, wherein the perfume is sorbed onto carrier particles which release at least 60% w/w/ of the perfume in the Perfume Release Test and which are inert as defined by the Perfume Stability Test. The invention also concerns perfume-on-carrier systems designed for perfuming free flowing concentrated laundry detergent powders. Preferably the carrier particles are inorganic and have a perfume content of at least 25% w/w.Type: GrantFiled: November 14, 1995Date of Patent: November 24, 1998Assignee: Quest International B.V.Inventors: John Martin Behan, Richard Arthur Birch, John Leake, Jeremy Nicholas Ness, Anthony Nock, Keith Douglas Perring
-
Patent number: 5834414Abstract: A novel detergent composition and product form provides for substantial chlorine stability in detergents having substantial organic surfactant concentration. The product format ensures that water contained in the formulation, contact between sensitive organic materials and the chlorine source are structurally isolated preventing undesirable chlorine surfactant interactions and instability. Particulate detergents can be packaged in any arbitrary packaging component that can maintain a dry flowable powder.Type: GrantFiled: October 17, 1996Date of Patent: November 10, 1998Assignee: Ecolab Inc.Inventors: Eddie D. Sowle, Darryl C. Bowling
-
Patent number: 5830841Abstract: A process for preparing a suds controlling composition suitable for incorporation into laundry detergent products comprises absorbing into the pores of porous silica a sufficient amount of a surfactant-containing solution to ensure wetting of the porous silica, dispersing the porous silica having the surfactant-containing solution absorbed therein in a silicone oil and mixing the dispersion with a dispersing agent.Type: GrantFiled: December 2, 1996Date of Patent: November 3, 1998Assignee: The Procter & Gamble CompanyInventors: Athanasios Surutzidis, Roger Jeffery Jones
-
Patent number: 5821207Abstract: The method for producing a fine solid builder particle includes the steps of suspending a solid builder in a dispersion medium containing 20 to 100% by weight of a surfactant, and carrying out wet grinding of the solid builder. The builder composition containing the fine solid builder particle is obtainable by the above method. The detergent composition containing the fine solid builder particle is obtainable by the method. The method for producing a detergent composition includes the steps of carrying out wet grinding of a solid builder using a dispersion medium containing a surfactant to give a mixture of a fine solid builder particle and the surfactant, and further adding the mixture to a composition for a detergent.Type: GrantFiled: December 11, 1996Date of Patent: October 13, 1998Assignee: Kao CorporationInventors: Hiroyuki Kanai, Mikio Sakaguchi, Shu Yamaguchi
-
Patent number: 5807817Abstract: This invention provides a free-flowing high bulk density granular detergent product for heavy duty textile laundering utility. One essential aspect of an invention detergent product is a content of a partially sulfated and neutralized blend of ethoxylated alcohol surfactant constituents. Another essential aspect is a unique granule structure in which the surfaces are coated with a non-tacky glossy shell of alkali metal chloride salt crystallites. The said glossy coating facilitates free-flowing and tight-packing of the granules into a high bulk density compact mass.Type: GrantFiled: October 15, 1996Date of Patent: September 15, 1998Assignee: Church & Dwight Co., Inc.Inventors: Louis R. Mazzola, Anthony J. Falotico
-
Patent number: 5789361Abstract: The present invention discloses an alkaline cleaning composition for cleaning heavily soiled metal surfaces such as food fryers, baking pans, high temperature pasteurizers, and beer kettles, ceramic surfaces such as restaurant grade ceramic china plates and platters, and plastic surfaces. The cleaning composition is noncaustic and includes a peroxygen compound, a chelate, and a metasilicate and/or sesquisilicate. A preferred cleaning composition further includes a surfactant and hydrated builder.Type: GrantFiled: March 1, 1996Date of Patent: August 4, 1998Assignee: Charvid Limited Liability Co.Inventor: Charles Bullick Talley
-
Patent number: 5783552Abstract: An effective amount of uncomplexed cyclodextrin, in the form of particles having particle sizes below about 12 microns, is incorporated into solid dryer-activated fabric conditioning compositions which are used in dryers to treat fabrics. The cyclodextrin is thereby attached to the fabrics and subsequently provides effective control of odors when they come in contact with the treated fabric. The fabric conditioning compositions can be attached to substrates to prepare an article of manufacture or be in the form of detergent compatible particles, for use with conventional laundry detergents.Type: GrantFiled: May 6, 1997Date of Patent: July 21, 1998Assignee: The Procter & Gamble CompanyInventors: Toan Trinh, Helen Bernardo Tordil
-
Patent number: 5783541Abstract: A unit packaged detergent comprises a detergent composition wrapped in a film made of a water-dissolvable material. The water-dissolvable material protects the wrapped detergent from dissolution until the start of a main wash of a dishwashing machine. At least one outer side of the water-dissolvable material is provided with a coating of a water-dissolvable glue.Type: GrantFiled: March 12, 1997Date of Patent: July 21, 1998Assignee: Procter & Gamble CompanyInventors: Joris Josef Gustaaf Tack, Jean-Luc Andre Varlet, Bruno Van De Pol
-
Patent number: 5773399Abstract: Granular laundry detergents are formulated with percarbonate bleach and oxidation-sensitive ingredients such as brighteners, enzymes, perfumes and the like. The storage stability of such compositions is improved by the presence of silicate. For example, the tendency of stilbene-type brighteners to form undesirable yellow shades in the presence of percarbonate is diminished by the corporation of silicate materials into the granules.Type: GrantFiled: May 21, 1996Date of Patent: June 30, 1998Assignee: The Procter & Gamble ComapnyInventors: Gerard Marcel Baillely, Richard Timothy Hartshorn
-
Patent number: 5773400Abstract: Stable granular detergent compositions with good flow and dispensing properties are prepared using percarbonate bleach and selected sulfate salts. Thus, particles comprising builders and surfactants are prepared separately from percarbonate bleach particles of defined particle size. Water-soluble sulfate particles having a defined size range and no more than 40 ppm iron and no more than 5 ppm copper are used in the compositions. The specified moisture content of the ingredients and overall compositions improves stability and flow/dispensing properties.Type: GrantFiled: May 21, 1996Date of Patent: June 30, 1998Assignee: The Procter & Gamble CompanyInventors: Gerard Marcel Baillely, Richard Timothy Hartshorn
-
Patent number: 5767053Abstract: A method of making a particulate foam control agent comprising 0.001 to 30 parts of silicone antifoam, 45 to 99 parts of a zeolite and 0 to 30 parts of a binder, preferably of a polycarboxylate-type, able to release at least some antifoam from the zeolite in the first 10 minutes of a washing cycle comprises depositing from 0.1 to 500% of the silicone antifoam of an organic surfactant onto the zeolite not later than depositing the silicone antifoam, at least 1 part of surfactant being used per 100 parts of the foam control agent. Also covered are detergent compositions and some foam control agents.Type: GrantFiled: December 20, 1995Date of Patent: June 16, 1998Assignee: Dow Corning S. A.Inventors: Pierre Andre Georges Gustave Germain, Bernhard Ernst Gold, Jan Sybren Hoogland, Bertrand Louis Julien Lenoble, Mark Prince
-
Patent number: 5759974Abstract: Block-form cleaners for flush toilets which consist of at least two masses of different composition, one of the masses being at least partly surrounded by the other mass(es) and the surrounded mass containing an active substance in a concentration at least 1.3 times higher than in the surrounding mass. This distribution ensures that the active substance is more uniformly released over the useful life of the cleaning block.Type: GrantFiled: July 30, 1996Date of Patent: June 2, 1998Assignee: Henkel Kommanditgesellschaft auf AktienInventors: Ronald Menke, Alexander Ditze, Gerd Praus
-
Patent number: 5759988Abstract: There is provided an environmentally stable detergent article. Normally, hygroscopic caustic detergent materials can be made resistant to absorption of ambient humidity or water by introducing a barrier coating onto the caustic detergent. The barrier also renders the highly active alkaline material safe for human handling. The coated detergent article can further be enclosed in a film enclosure or wrapping which provides further protection for handling during production, shipment, storage and final end use. The coated article can be removed from any packaging material, inserted into a water spray-on dispenser and used to create a concentrated aqueous detergent for use in ware washing machines. In order to obtain control over dispensing, hydrophobic coatings can be nicked, split, peeled or partially removed using other means to provide an initial surface of caustic detergent exposed to the water spray.Type: GrantFiled: November 22, 1996Date of Patent: June 2, 1998Assignee: Ecolab Inc.Inventors: Bernard Joseph Heile, James John Tarara
-
Patent number: 5756445Abstract: A granular detergent component having a bulk density of less than 400 g/l comprises from 20% to 50%, by weight, of aluminosilicate, optionally up to 50%, by weight, of a co-filler, and 0.05% to 2%, by weight, of anionic surfactant, preferably C14-C20 alkyl sulphate. The low bulk density component is preferably mixed with other components such as percarbonate, silicate, layered silicate, carbonate, bicarbonate, sesquicarbonate, sulphate, citrate and mixtures thereof to provide a granular detergent composition.Type: GrantFiled: July 30, 1996Date of Patent: May 26, 1998Assignee: The Proctor & Gamble CompanyInventors: Andrew Dorset, Robin Gibson Hall