Patents Assigned to Albright & Wilson Limited
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Patent number: 4960433Abstract: A process for the deposition of a film of an electrophoretic resin upon the surface of a substrate which comprises the steps of (i) electrophoretically depositing from a bath comprising water, a water miscible organic solvent and the resin, a film of the uncured resin upon the surface of the substrate; (ii) immersing said film in a solution of a resin additive in a solvent medium comprising water and a water miscible organic solvent, the amount of said resin additive dissolved in said solvent medium being sufficient for the absorption into the resin film of sufficient additive to impart the desired property to the cured resin film, the composition of said solvent medium being such that the requisite amount of additive can be dissolved therein and such that said desired property is imparted to said resin film while immersed in said solvent medium without significant damage to the resin fim; and (iii) curing the resin.Type: GrantFiled: July 10, 1989Date of Patent: October 2, 1990Assignee: Albright & Wilson LimitedInventor: Stanley Renton
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Patent number: 4919754Abstract: A composition containing an aqueous, recycled cellulosic fibre pulp, print pigments contaminating the pulp, from 0.1% to 10% based on the weight of the pulp solids of a curable precursor of a solid polymer resin which is not substantive to the cellulosic fibres of the pulp, and a catalyst capable of curing the resin precursor in the dispersion; wherein the resin precursor contains a mixture of a fluid prepolymer having at least two reactive functional groups per molecule and a cross-linking agent capable of reacting with the functional groups.Type: GrantFiled: March 18, 1987Date of Patent: April 24, 1990Assignee: Albright & Wilson LimitedInventors: Christopher C. Mollett, Gordon R. Sneddon
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Patent number: 4919725Abstract: A water dispersible active sizing composition comprises an active size such as alkyl succinic acid and an effective proportion (e.g. 10-30% by weight) of a dispersant therefor, said dispersant comprising a polyalkoxylate of a rosin or fortified rosin, and/or a water dispersible organic derivative thereof such as a maleinate or succinate half ester.Type: GrantFiled: July 26, 1988Date of Patent: April 24, 1990Assignee: Albright & Wilson LimitedInventor: Mervyn F. Jones
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Patent number: 4909805Abstract: A process for flame retarding blends of cellulosic and other fibres e.g. polyester fibres involves impregnation thereof with tetra kis (hydroxyorgano) phosphonium compounds or condensates thereof followed by curing with ammonia, the operation being performed in at least two steps, and with 5-20% of organophosphorus compound (as THP.sup.+ ion) applied in the first step.Type: GrantFiled: June 3, 1988Date of Patent: March 20, 1990Assignee: Albright & Wilson LimitedInventor: Geoffrey W. Smith
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Patent number: 4906396Abstract: A protected enzyme system suitable for storage, prior to use, in a medium such as a liquid detergent which causes degradation of the unprotected enzyme, which system comprises at least one enzyme dispersed in a hydrophobic substance which does not dissolve on storage and which is liquid under the conditions of use.Type: GrantFiled: February 20, 1987Date of Patent: March 6, 1990Assignees: Albright & Wilson limited, Novo-Nordisk A/SInventors: Per Falholt, Arne D. Fog, Anthony Martin
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Patent number: 4881975Abstract: Silica products obtained from trivalent metal e.g. Al compounds and silica can be used as corrosion inhibitors or adhesion promoters for organic coatings on surfaces by way of no-rinse or phosphating treatment or as pigments.Type: GrantFiled: December 21, 1987Date of Patent: November 21, 1989Assignee: Albright & Wilson LimitedInventors: John R. Collier, Kenneth U. Holker
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Patent number: 4871467Abstract: Pourable, fluid, non sedimenting, laundry detergent composition, comprising water, surfactant, builder, a surfactant desolubilizing electrolyte and, optionally, the usual minor ingredients, consist essentially of: at least one predominantly aqueous liguid phase which is separable into a distinct layer by centrifuging the composition at 800 times normal earth gravity at 25.degree. C. for 17 hours, and which contains at least part of the electrolyte and less than 75% by weight, preferalby less than 10% by weight, of the surfactant, and one or more other phases which together contain at least part of the builder as solid particles dispersed in the composition and at least part of the surfactant, preferably either as a network of solid surfactant hydrate, or as a "G" phase liquid crystal which may be associated with an "L" phase, micellar solution.Type: GrantFiled: April 17, 1987Date of Patent: October 3, 1989Assignee: Albright & Wilson LimitedInventors: Brian J. Akred, Edward T. Messenger, William J. Nicholson
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Patent number: 4793943Abstract: Liquid detergent compositions suitable for laundry use consist essentially of water, Electrolyte, Active Ingredient and preferably a Builder. They comprise a space-filling, floc-like aggregate of surfactant containing spherulites, substantially cocontinuous with an aqueous liquid micellar solution. They are shear thinning, mobile, stable to shear stress, storage under extreme climatic conditions and high pH.Type: GrantFiled: July 30, 1986Date of Patent: December 27, 1988Assignee: Albright & Wilson LimitedInventors: William P. Haslop, John M. Allonby, Brian J. Akred, Edward T. Messenger
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Patent number: 4781855Abstract: A particulate hydrated trisodium phosphate composition useful in heavy duty cleansers has a core and shell structure, the shell being of trisodium phosphate hexahydrate and the core comprising trisodium orthophosphate dodecahydrate and sodium hydroxide. The composition may be made by prilling to form an intermediate body with solid shell and a liquid or solid/liquid core followed by further cooling.Type: GrantFiled: January 13, 1988Date of Patent: November 1, 1988Assignee: Albright & Wilson LimitedInventors: Brian Shaw, Raymond A. Smith
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Patent number: 4775407Abstract: A method of treating surfaces colonized or colonizable by bryophites or lichens which comprises applying thereto sufficient of a water soluble tetrakis (hydroxymethyl) phosphonium salt to kill, or inhibit the growth thereon of said bryophytes or lichens.Type: GrantFiled: November 12, 1986Date of Patent: October 4, 1988Assignee: Albright & Wilson LimitedInventors: Robert E. Talbot, Kenneth G. Cooper
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Patent number: 4753754Abstract: Surfactant mixtures are prepared in a fluid "G" phase of more than 50% concentration, the mixtures comprise different surfactant products selected respectively from at least two of the following classes, that is to say alkyl sulphates, alkyl ether sulphates, olefin sulphonates, alkyl benzene sulphonates, alkyl sulphosuccinates, alkyl ether sulphosuccinates, alkyl sulphosuccinamates, paraffin sulphonates, fatty carboxylates, alkyl ether carboxylates, alkyl phosphates, alkyl ether phosphates, alkyl phenol sulphates, alkyl phenyl ether sulphates, alkyl phenyl ether sulphonates, fatty ester sulphonates, fatty acid sulphonates, acyl sarcosinates and acyl taurides.Type: GrantFiled: May 8, 1987Date of Patent: June 28, 1988Assignee: Albright & Wilson LimitedInventors: Edward T. Messenger, Douglas E. Mather, Brinley M. Phillips
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Patent number: 4673509Abstract: The growth of microbiological contaminants in industrial cooling and process waters and in aqueous based products, susceptible to microbiological spoilage on storage, is inhibited by the presence of a phosphorus compound having a hydroxy alkyl group directly attached to the phosphorus atom, such as tetrakis hydroxy methyl phosphonium sulphate.Type: GrantFiled: August 27, 1984Date of Patent: June 16, 1987Assignee: Albright & Wilson LimitedInventors: Keith P. Davis, Robert E. Talbot
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Patent number: 4659497Abstract: Pourable, fluid, non sedimenting, laundry detergent composition, comprising water, surfactant, builder, a surfactant desolubilizing electrolyte and, optionally, the usual minor ingredients, consist essentially of: at least one predominantly aqueous liquid phase which is separable into a distinct layer by centrifuging the composition at 800 times normal earth gravity at 25.degree. C. for 17 hours, and which contains at least part of the electrolyte and less than 75% by weight, preferably less than 10% by weight, of the surfactant, and one or more other phases which together contain at least part of the builder as solid particles dispersed in the composition and at least part of the surfactant, preferably either as a network of solid surfactant hydrate, or as a "G" phase liquid crystal which may be associated with an "L" phase, micellar solution.Type: GrantFiled: May 3, 1985Date of Patent: April 21, 1987Assignee: Albright & Wilson LimitedInventors: Brian J. Akred, Edward T. Messenger, William J. Nicholson
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Patent number: 4655787Abstract: A process for the deposition of a film of an electrophoretic resin upon the surface of a substrate which comprises the steps of(i) electrophoretically depositing from a bath comprising water, a water miscible organic solvent and the resin, a film of the resin upon the surface of the substrate(ii) immersing said film in a solution of a solvent dye in a solvent medium comprising water, a water miscible organic solvent and a hydrotrope, the amount of said solvent dye dissolved in said solvent medium being sufficient for the absorption into the resin film of sufficient dye to impart the desired coloration to the resin film, the amount of said hydrotrope and said solvent being sufficient so that said amount of such solvent dye will dissolve in the solvent medium and(iii) curing the resin.Type: GrantFiled: May 7, 1985Date of Patent: April 7, 1987Assignee: Albright & Wilson LimitedInventor: Stanley Renton
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Patent number: 4618446Abstract: Liquid detergent compositions suitable for laundry use consist essentially of water, Electrolyte, Active Ingredient and preferably a Builder. They comprise a space-filling, floc-like aggregate of surfactant containing spherulites, substantially cocontinuous with an aqueous liquid micellar solution. They are shear thinning, mobile, stable to shear stress, storage under extreme climatic conditions and high pH.Type: GrantFiled: December 21, 1984Date of Patent: October 21, 1986Assignee: Albright & Wilson LimitedInventors: William P. Haslop, John M. Allonby, Brian J. Akred, Edward T. Messenger
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Patent number: 4515704Abstract: Pourable, fluid, non sedimenting, laundry detergent composition, comprising water, surfactant, builder, a surfactant desolubilizing electrolyte and, optionally, the usual minor ingredients, consist essentially of : at least one predominantly aqueous liquid phase which is separable into a distinct layer by centrifuging the composition at 800 times normal earth gravity at 25.degree. C. for 17 hours, and which contains at least part of the electrolyte and less than 75% by weight, preferably less than 10% by weight, of the surfactant, and one or more other phases which together contain at least part of the builder as solid particles dispersed in the composition and at least part of the surfactant, preferably either as a network of solid surfactant hydrate, or as a "G" phase liquid crystal which may be associated with an "L" phase, micellar solution.Type: GrantFiled: February 4, 1983Date of Patent: May 7, 1985Assignee: Albright & Wilson LimitedInventors: Brian J. Akred, Edward T. Messenger, William J. Nicholson
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Patent number: 4494951Abstract: The cure efficiency for the treatment of fabrics with tetra(hydroxymethyl) phosphonium compounds and their precondensates e.g. with urea especially from THP sulphate, is improved by passing gaseous ammonia through impregnated fabric then wetting the fabric and completing the cure with more ammonia, preferably again passed it through the fabric.Type: GrantFiled: September 24, 1982Date of Patent: January 22, 1985Assignee: Albright & Wilson LimitedInventors: Robert Cole, James E. Stephenson
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Patent number: 4440665Abstract: Aqueous surfactant mixtures comprising a first amphoteric surfactant and at least one non-ionic surfactant and/or at least one amphoteric surfactant non-homologous with the first amphoteric surfactant, are obtained at a concentration substantially higher than previously obtainable by preparing them in the presence of sufficient water to form a "G" phase.Type: GrantFiled: May 25, 1979Date of Patent: April 3, 1984Assignee: Albright & Wilson LimitedInventors: Douglas E. Mather, Edward T. Messenger, Brinley M. Phillips
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Patent number: 4383898Abstract: After a metal finishing treatment by means of an aqueous solution that forms a surface of free metal, or comprising metal ions, exposed to the environment, the surface is rinsed, contacted with a soap solution and subjected to a final rinse. The treatment provides enhanced corrosion resistance and rapid spontaneous de-watering after the final rinse.Type: GrantFiled: March 26, 1981Date of Patent: May 17, 1983Assignee: Albright & Wilson LimitedInventor: Stanley Renton
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Patent number: 4382066Abstract: Uranium is extracted from wet process phosphoric acid by extraction with a mixture of a diorganophosphate and a neutral phosphorus compound, which is preferably a triorgano phosphine oxide, in the presence of nitrate to form an organic extract layer containing uranium and an aqueous acid layer, which are separated.Type: GrantFiled: October 9, 1979Date of Patent: May 3, 1983Assignee: Albright & Wilson LimitedInventor: Mark A. Rose