Patents by Inventor John George Chambers
John George Chambers has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 9228157Abstract: A process for manufacturing detergent particles comprising the steps of: a) forming a liquid surfactant blend comprising a major amount of surfactant and a minor amount of water, the surfactant part consisting of at least 51 wt % linear alkylbenzene sulfonate and at least one co-surfactant, the surfactant blend consisting of at most 20 wt % nonionic surfactant; b) drying the liquid surfactant blend of step (a) in an evaporator or drier to a moisture content of at most 2 wt % and cooling the output from the evaporator or dryer; c) feeding the cooled material, which output comprises at least 93 wt % surfactant blend with a major part of LAS, to an extruder, optionally along with less than 10 wt % of other materials such as perfume, fluorescer, and extruding the surfactant blend to form an extrudate while periodically cutting the extrudate to form hard detergent particles with a diameter across the extruder of greater than 2 mm and a thickness along the axis of the extruder of greater than 0.Type: GrantFiled: April 21, 2010Date of Patent: January 5, 2016Assignee: Conopco, Inc.Inventors: John George Chambers, Stephen Thomas Keningley, Steven James Kynaston, Jonathan Osler, William John Wilson
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Publication number: 20120058266Abstract: A process for manufacturing detergent particles comprising the steps of: a) forming a liquid surfactant blend comprising a major amount of surfactant and a minor amount of water, the surfactant part consisting of at least 51 wt % linear alkylbenzene sulfonate and at least one co-surfactant, the surfactant blend consisting of at most 20 wt % nonionic surfactant; b) drying the liquid surfactant blend of step (a) in an evaporator or drier to a moisture content of at most 2 wt % and cooling the output from the evaporator or dryer; c) feeding the cooled material, which output comprises at least 93 wt % surfactant blend with a major part of LAS, to an extruder, optionally along with less than 10 wt % of other materials such as perfume, fluorescer, and extruding the surfactant blend to form an extrudate while periodically cutting the extrudate to form hard detergent particles with a diameter across the extruder of greater than 2 mm and a thickness along the axis of the extruder of greater than 0.Type: ApplicationFiled: April 21, 2010Publication date: March 8, 2012Inventors: John George Chambers, Stephen Thomas Keningley, Steven James Kynaston, Jonathan Osler, William John Wilson
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Publication number: 20080214424Abstract: A soluble unit dose of laundry detergent which comprises: a) a thin walled hard capsule, having a wall thickness between 0.07 and 0.3 mm and, c) within the thin walled hard capsule a detergent composition comprising at least 1 g of surfactant, which makes up at least 45% wt of the detergent composition. wherein the solubility of the capsule and the detergent composition is such that it will reach a level of 90% of eventually dissolved electrolytes in stirred demineralised water at 25° C. in less than 35 seconds. By choice of a capsule with this wall thickness the solubility is ensured while pressure caking of the contents is resisted to minimise overall dissolution time.Type: ApplicationFiled: June 14, 2005Publication date: September 4, 2008Inventors: Stephen George Barnwell, Paul Chadwick, John George Chambers, Peter Graham, Philip Ronald Moore, David Christopher Thorley
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Publication number: 20030166491Abstract: A compacted laundry detergent tablet which comprises (a) solid particulate detergent base powder comprising surfactant and optionally builder; (b) optionally other particulate detergent ingredients; and (c) a binder material between the detergent base powder particles and/or the optional particulate detergent ingredients wherein the binder comprises (c)(i) from 10 wt % to 90 wt % of a nonionic surfactant having a melting point of from 30 to 70° C.; and (c)(ii) from 10 wt % to 90 wt % of a water-soluble organic material having a melting point of from 30 to 70° C. Preferred nonionic surfactants are the primary and secondary aliphatic alcohol ethoxylates and preferred organic materials are the polyethylene glycols.Type: ApplicationFiled: January 17, 2003Publication date: September 4, 2003Applicant: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: John George Chambers, John Edley Wilson, Douglas Wraige
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Patent number: 6387857Abstract: A personal wash liquid composition which comprises 10 to 40% of one or more anionic surfactants, 30 to 50% of one or more humectants, and less than 55% water, characterized in that the water activity of the product is less than 0.9. Compositions according to the invention have been found to have self-preserving properties.Type: GrantFiled: February 15, 2000Date of Patent: May 14, 2002Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: John George Chambers, Phillip Moore
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Patent number: 6342470Abstract: The invention discloses bars comprising fatty acid soaps, free fatty acid, polyalkylene glycol and specific salts of protic acid (i.e., having pKa1 less than 6, preferably less than 5.5). Using specific equivalent molar ratios of free fatty acid to protic acid salt and specific wt. ratio of free fatty acid to PAG and salt of protic acid, applicants obtain bars having sensory feel of soap and which improve skin condition is measured in Controlled Application Wash Test.Type: GrantFiled: April 26, 2000Date of Patent: January 29, 2002Assignee: Unilever Home & Personal Care USAInventors: Michael Paul Aronson, Charles Craig Nunn, Sergio Roberto Leopoldino, John George Chambers, Christine Gorman, Shana Azri-Meehan
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Publication number: 20020010109Abstract: A personal wash liquid composition which comprises 10 to 40% of one or more anionic surfactants, 30 to 50% of one or more humectants, and less than 55% water, characterised in that the water activity of the product is less than 0.9. Compositions according to the invention have been found to have self-preserving properties.Type: ApplicationFiled: February 15, 2000Publication date: January 24, 2002Inventors: John George Chambers, Phillip Moore
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Patent number: 6251843Abstract: A detergent composition which is suitable for making into bars for personal washing comprises: (a) 10 to 60% wt. of a synthetic, non-soap detergent; (b) 20 to 60% wt. of water soluble material which is neither soap nor a non-soap detergent and which has a melting point in the range 40° C. to 100° C.; and (c) 5 to 50% wt. of water insoluble material which is neither soap nor a non-soap detergent and which has a melting point in the range 40° C. to 100° C. The content of water, if any does not exceed 20% wt. of the composition and better is less than 15% wt. The materials (b) and (c) serve to give structure to the bars. The compositions can be prepared by melting together the above mentioned components at a temperature of 50-100° C., without the conventional energetic working. Desirably the molten mixture contains less than 20% wt. material, other than synthetic, non-soap detergent, which does not enter the liquid phase.Type: GrantFiled: September 28, 1999Date of Patent: June 26, 2001Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: John George Chambers, Bryan Stuart Joy, Melissa Iva Katz, John Gerrard Sheehan
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Patent number: 6242399Abstract: A soap bar comprises: (A) 30-60% by wt of an alkali metal salt of a fatty acid mixture consisting of: (i) 65-90% soap having 1-14 carbon atoms, which includes 2-15% soap having 1-10 carbon atoms, and which further includes 1-10% by wt soap having 1-8 carbon atoms, and (ii) 10-35% of soap having greater than fourteen carbon atoms of which 0-25% is unsaturated soap; (B) 3-35% by wt. fatty acid; (C) 2-25% by wt. structurant; and (D) the remainder water. The product provides higher and creamier lather than other toilet soaps, and also provides a preferred post-use ‘draggy’ (non-frictional) feel to consumers.Type: GrantFiled: February 18, 1999Date of Patent: June 5, 2001Assignee: Unilever Home & Personal Care USA, a division of Conopco, Inc.Inventors: John George Chambers, Geoffrey Irlam, Bryan Stuart Joy
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Patent number: 6242398Abstract: A soap bar comprises 40-85% soap, 1-40% water immiscible benefit agent 1-40% solid water soluble carrier and 5-25% water. The carrier is initially mixed with the benefits agent to form a premix which is subsequently dispersed into the soap. Suitable benefit agents are oils and humectants whereas suitable carriers are starches, modified starches and water soluble solid polymers.Type: GrantFiled: August 20, 1998Date of Patent: June 5, 2001Assignee: Lever Brothers Company, division of Conopco, Inc.Inventors: John George Chambers, Geoffrey Irlam, Bryan Stuart Joy
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Patent number: 6242412Abstract: Liquid personal wash composition comprises a synthetic anionic surfactant and an amphoteric surfactant in range of 4:1 to 0.1:1. Use of levels of at least 10% of a specified PEG provides both enhanced lather and enhanced mildness.Type: GrantFiled: August 9, 1999Date of Patent: June 5, 2001Assignee: Unilever Home & Personal Care USA, Division of Conopco, Inc.Inventors: John George Chambers, Izumi Kutsuwa, David Serridge
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Patent number: 6218348Abstract: The invention discloses process for making bars comprising fatty acid soaps, free fatty acid, polyalkylene glycol and specific salts of protic acid (i.e., having pKa1 less than 6, preferably less than 5.5). Using specific equivalent molar ratios of fatty acid to protic acid salt and specific wt. ratio of PAG and salt of protic acid to free fatty acid, applicants obtain bars having sensory feel of soap and which improve skin condition in Controlled Application Wash Tests.Type: GrantFiled: April 26, 2000Date of Patent: April 17, 2001Assignee: Unilever Home & Personal Care USA, division of Conopco, Inc.Inventors: Michael Paul Aronson, Charles Craig Nunn, Sergio Roberto Leopoldino, John George Chambers, Christine Gorman, Shana Azri-Meehan
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Synthetic bar comprising high levels of alkylene oxide as structurant prepared by simple mix process
Patent number: 6028042Abstract: A detergent composition which is suitable for making into bars for personal washing comprises:(a) 10 to 60% wt. of a synthetic, non-soap detergent;(b) 20 to 60% wt. of water soluble material which is neither soap nor a non-soap detergent and which has a melting point in the range 40.degree. C. to 100.degree. C.; and(c) 5 to 50% wt. of water insoluble material which is neither soap nor a non-soap detergent and which has a melting point in the range 40.degree. C. to 100.degree. C. The content of water, if any does not exceed 20% wt. of the composition and better is less than 15% wt. The materials (b) and (c) serve to give structure to the bars. The compositions can be prepared by melting together the above mentioned components at a temperature of 50-100.degree. C., without the conventional energetic working. Desirably the molten mixture contains less than 20% wt. material, other than synthetic, non-soap detergent, which does not enter the liquid phase.Type: GrantFiled: March 31, 1998Date of Patent: February 22, 2000Assignee: Lever Brothers CompanyInventors: John George Chambers, Bryan Stuart Joy, Melissa Iva Katz, John Gerrard Sheehan -
Patent number: 5968890Abstract: An aqueous liquid detergent composition comprises a mixture of synthetic anionic and amphoteric surfactants in a weight ratio within the range 4:1 to 0.1:1 and a polyethylene glycol having a molecular weight of not more than 100,00. The later component boosts the lather of the composition during use. It may also enhance the mildness of the formulation.Type: GrantFiled: March 14, 1997Date of Patent: October 19, 1999Assignee: Lever Brothers CompanyInventors: John George Chambers, Izuma Kutsuwa, David Serridge
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Patent number: 5882660Abstract: A personal care composition in the form of an aqueous liquid comprises:i) a lipid composition comprising two components D and E, where D is a molecule having one long hydrocarbon chain and a hydrophillic head group and E is a material which comprises at least one of a compound selected from 3.beta.-sterol; squalane; squalane; saponins or sapogenins of the plant steroid or triterpenoid type; di and tri terpenes such as phytol, retinol and amyrin; and mixtures thereof, wherein D and E are respectively present at levels within the range 0.1 to 10 wt % and 0.2 a to 12 wt % based on the total composition;ii) a surface active agent selected from anionic, nonionic, cationic, zwitterionic, amphoteric surface active agents, soap and mixtures thereof; andiii) a deposition aid; andthe composition is substantially free of a molecule having at least two hydrocarbon chains and a polar head group which satisfies the relationship ##EQU1## where V is the volume of the hydrocarbon chainsI.sub.Type: GrantFiled: February 3, 1997Date of Patent: March 16, 1999Assignee: Lever Brothers Company, Division of Conopco, Inc.Inventors: John George Chambers, Graham Andrew Turner
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Patent number: 5656579Abstract: The invention relates to mild toilet soap bars, comprising blends of soap with one or more coactives. There is a need for mild bars which do not have the processing problems associated with the use of superfatting agents and co-actives, which can be made without difficulty on conventional soap production lines without substantial modification of the lines and yet provide a product with reduced harshness while maintaining lathering and structural properties. Moreover, it is desirable that soap bars should not suffer from the defect of grittiness and also have a composition which contains relatively low levels of the significantly more expensive lauric fats. We have determined that in soap bars which comprise at least 25% wt. on total actives of lauric acid soaps; as the balance of the soaps, non-lauric soaps having an iodine value of less than 45; at least 5% wt.Type: GrantFiled: March 6, 1996Date of Patent: August 12, 1997Assignee: Lever Brothers Company, Divison of Conopco, Inc.Inventors: John George Chambers, Geoffrey Irlam