Dry Cleaning Patents (Class 8/142)
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Patent number: 4075375Abstract: A process for the preparation of cleaning materials comprising a cleaning fibrous substrate and an oiling composition adsorbed and impregnated in said fibrous substrate, said process comprising contacting a cleaning fibrous substrate composed of cellulose fibers or a combination of up to 30 % by weight, based on the total fibers, of synthetic fibers and the remainder of cellulose fibers with an oil-in-water emulsion of an oiling composition consisting substantially of (a) an oiling agent composed of mineral oil, a synthetic lubricating oil or a mixture thereof and having a viscosity of 8 to 100 cps as measured at 100.degree. F., (b) 0.5 to 35 % by weight, based on the total oiling composition, of an amphoteric surface active agent or a surface active agent having in the molecule both cationic active and non-ionic active groups and (c) 0.3 to 5.0 % by weight, based on the total oiling composition, of a benzene-carboxylic acid ester having a solubility parameter of from 8 to 12.Type: GrantFiled: January 30, 1976Date of Patent: February 21, 1978Assignee: Duskin Franchise Co. Ltd.Inventor: Toshiyoshi Komatsu
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Patent number: 4065259Abstract: Fluorocarbon dye dispersion comprising an organic disperse dye; a certain normally liquid fluorocarbon having a fluorine to carbon atom ratio of at least 1.5, a solubility parameter of not greater than 7.0 and a critical temperature of at least 135.degree. C., and, optionally, an effective amount of a compound having both surface activity and solubility in the normally liquid fluorocarbon, said dye dispersion being useful in the exhaust dyeing of disperse dyeable synthetic polymers, in the form of films, fibers or fabrics, by the process comprising contacting the polymer with the dye disperson at a temperature above the glass transition temperature of the polymer for a sufficient time to exhaust the dye onto the polymer.Type: GrantFiled: April 23, 1976Date of Patent: December 27, 1977Assignee: E. I. Du Pont de Nemours and CompanyInventor: Harold Leonard Jackson
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Patent number: 4065258Abstract: The dissolution of a small amount of certain reactive epoxy-containing silicone compounds in solvents used to dry clean leather results in improved and more durable softness and water resistance properties being imparted to the leather.Type: GrantFiled: March 5, 1976Date of Patent: December 27, 1977Assignee: Union Carbide CorporationInventor: Haywood Gordon France
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Patent number: 4047889Abstract: A process is disclosed for the rapid, continuous and waterless dyeing of textile and plastic materials in which the dyestuff is dissolved, suspended or dispersed in a high boiling solvent, such as glycol or glycol ether, for carrying out the dyeing step per se, after which the dyed textile or plastic material (after cooling if desired) is subjected to a washing with a low boiling liquid such as methanol or ethanol (preferably the former) or a chlorinated hydrocarbon solvent, and subsequently dried. The entire series of operations is carried out under nonaqueous or substantially nonaqueous conditions with the complete or substantially complete recovery and recycling of the used dyestuff, the used high boiling solvent, and the used low boiling wash liquid.Type: GrantFiled: January 9, 1976Date of Patent: September 13, 1977Assignee: Martin Processing, Inc.Inventor: Julius Hermes
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Patent number: 4048240Abstract: Nitrogen trichloride produced in situ from the reaction of a chlorine source and a nitrogen source in a non-aqueous fluid is adsorbed on an adsorption media and serves to oxidize, bleach or deactivate contaminants and foreign matter of the fluid similarly adsorbed on said adsorption media.Type: GrantFiled: October 19, 1976Date of Patent: September 13, 1977Inventor: Robert Frederick Connelly
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Patent number: 4045174Abstract: A load of garments or other textile material to be washed is presoaked in organic solvent, e.g. in a rotating drum, and is then immersed within the same vessel in a water bath while still permeated by a substantial quantity of solvent. During this immersion, the vessel is gradually heated to the boiling point of the solvent, or of the azeotropic water/solvent mixture, which is below the boiling point of water so that only a part of the wash liquor is vaporized. The evaporation can be accelerated by placing the vessel under a partial vacuum. The evaporation rate of the solvent is measured and the washing cycle is halted as soon as that rate drops to zero or below a predetermined limit, with subsequent drying of the load by, for example, centrifugation.Type: GrantFiled: January 10, 1975Date of Patent: August 30, 1977Assignee: Bowe, Bohler & Weber KG MaschinenfabrikInventors: Heinrich Fuhring, Johannes Helmut Sieber
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Patent number: 4039465Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with octafluorocyclolbutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoramethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.Type: GrantFiled: May 27, 1976Date of Patent: August 2, 1977Assignee: Phillips Petroleum CompanyInventors: William Milton Hutchinson, deceased, by Florence M. Hutchinson, executrix
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Patent number: 4026798Abstract: Peracids and a water-soluble inorganic polyphosphate salt are used in the treatment of dirty dry cleaning baths to permit longer operation between distillation.Type: GrantFiled: November 28, 1975Date of Patent: May 31, 1977Assignee: FMC CorporationInventors: Harry Marcus Castrantas, John T. Gresham
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Patent number: 4023927Abstract: A dry cleaning process is provided which is effective for preventing wet-soil redeposition and improving stain-release characteristics of polyester textile material. The process advantages are accomplished by a dry cleaning solvent system contaning hydroxypropyl methyl cellulose as an anti-soiling agent.Type: GrantFiled: May 8, 1975Date of Patent: May 17, 1977Assignee: Celanese CorporationInventor: Alex S. Forschirm
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Patent number: 4024086Abstract: Constant boiling binary admixtures are formed by 1,2-dichloro-1,1-difluoroethane (F-132B) with acetone, with methanol, and with ethanol; and a constant boiling ternary admixture is formed with diethyl ether and ethanol. Constant boiling binary admixtures are formed by 1,1,2-trifluoroethane (F-143) with octafluorocyclobutane, with 1,2-dichloro-1,1,2,2-tetrafluoroethane, with dichlorofluoromethane, with trichlorofluoromethane, with 1,1,2-trichloro-1,2,2-trifluoroethane, and with 1,1,1-trifluoro-2-chloroethane.Type: GrantFiled: August 6, 1975Date of Patent: May 17, 1977Assignee: Phillips Petroleum CompanyInventor: William Milton Hutchinson, deceased
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Patent number: 4014805Abstract: Improved dry cleaning formulation containing a dry cleaning solvent, water, inorganic polyphosphate salt, hydrogen peroxide and a suitable detergent surfactant having a pH value of from 5 to 9, which minimizes equipment corrosion and maintains fabric strength while effectively removing hydrophilic stains.Type: GrantFiled: November 28, 1975Date of Patent: March 29, 1977Assignee: FMC CorporationInventor: Harry Marcus Castrantas
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Patent number: 4013575Abstract: Textile fabric stain removal is significantly improved by including in conventional dry cleaning solvent baths, a preformed or in situ generated peracid.Type: GrantFiled: November 28, 1975Date of Patent: March 22, 1977Assignee: FMC CorporationInventors: Harry Marcus Castrantas, John T. Gresham
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Patent number: 4012194Abstract: Extraction and cleaning processes characterized by the use of liquid carbon dioxide as the extraction and cleaning solvent. This solvent is disclosed as being applied to plant material for the extraction of essential oils and as being used in place of the conventional solvents in the dry cleaning of garments.Type: GrantFiled: August 2, 1973Date of Patent: March 15, 1977Inventor: Raymond L. Maffei
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Patent number: 4010988Abstract: A towel apparatus which handles an endless towel within a cabinet and subjects the same to cleaning and drawing, making use of a low vapor pressure chemical type solvent.Type: GrantFiled: March 7, 1975Date of Patent: March 8, 1977Inventor: James W. Schwartz
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Patent number: 3996158Abstract: This invention relates to the use of a limited specie of glassy rhyolite, specifically pumicite as a filter aid for the cleaning of solvent in the drycleaning industry. The invention is particularly directed to the new and unexpected results accruing from the use of pumicite for accomplishing extremely low, non-volatile levels in the solvent and for also removing objectionable fatty acids and odor from the solvent while simultaneously making its distillation unnecessary and removing sufficient moisture to give clothes a softer feel, and fewer wrinkles.Type: GrantFiled: September 23, 1974Date of Patent: December 7, 1976Inventor: Marvin D. Cohen
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Patent number: 3990844Abstract: Ion-exchange resins provide a convenient means for reducing the concentration of hydrogen peroxide in drycleaning solvents. The ion-exchange method is adaptable to automated drycleaning processes requiring removal of residual hydrogen peroxide from fabrics.Type: GrantFiled: December 11, 1973Date of Patent: November 9, 1976Assignee: PPG Industries, Inc.Inventor: Charles L. Cormany
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Patent number: 3969073Abstract: A dry cleaning composition comprising a dry cleaning solvent, a detergent and an organic ester of ortho-titanic acid and a process for its use which results in decreased soil redeposition.Type: GrantFiled: January 20, 1975Date of Patent: July 13, 1976Assignee: E. I. Du Pont de Nemours and CompanyInventor: Albert Robert Eanzel
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Patent number: 3963419Abstract: A laundry oil containing 0.02 to 2.0 weight percent 8-hydroxyquinoline as an antibacterial agent and the process of laundering mops and other fabrics used to wipe dust with such oil. In a preferred aspect of the invention the mops, etc. are laundered directly with the oil. When copper is present in the laundering apparatus the laundry oil preferably contains 0.0001 to 0.5 weight percent benzotriazole.Type: GrantFiled: April 15, 1974Date of Patent: June 15, 1976Assignee: Sun Oil Company of PennsylvaniaInventor: Richard E. Ware
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Patent number: 3961880Abstract: Continuous process for the optical brightening and printing of organic fiber material, wherein the material is dry cleaned and at least one optical brightener applied from an organic liquor, the said material being then intermediately dried, printed, and subsequently finished by a heat treatment.Type: GrantFiled: June 18, 1974Date of Patent: June 8, 1976Assignee: Ciba-Geigy CorporationInventors: Gerhard Reinert, Andres Schaub, Paul Dussy
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Patent number: 3961891Abstract: A laundry oil contains 0.0001 to 0.10 weight percent phenyl mercury oleate as an antibacterial agent. Also disclosed is the process of laundering fabrics used to wipe dust with such an oil and a concentrate for adding to an oil prior to its use as a laundry oil.Type: GrantFiled: December 6, 1974Date of Patent: June 8, 1976Assignee: Sun Oil Company of PennsylvaniaInventor: Richard E. Ware
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Patent number: 3957428Abstract: A process for uniformly and thoroughly bleaching textile material having contaminate in the fibers comprising:1. IMPREGNATING THE CONTAMINATED TEXTILE MATERIAL WITH A SOLUTION OF A SURFACE-ACTIVE AGENT IN A HYDROCARBON OR HALOGENATED HYDROCARBON SOLVENT AND STEAMING THE IMPREGNATED TEXTILE MATERIAL TO REMOVE SOLVENT, WHEREBY SUBSTANTIALLY ALL OF THE CONTAMINATION IN THE FIBERS AND THE SURFACE-ACTIVE AGENT REMAIN IN THE TEXTILE MATERIAL;2. IMPREGNATING THE TEXTILE MATERIAL WITH THE CONTAMINATION AND SURFACE-ACTIVE AGENT WITH AN AQUEOUS BLEACHING SOLUTION CONTAINING, AS A BLEACHING AGENT, HYDROGEN PEROXIDE;3. STEAMING THE TEXTILE MATERIAL; AND4. WASHING THE TEXTILE MATERIAL WITH AN AQUEOUS MEDIUM.Type: GrantFiled: September 20, 1972Date of Patent: May 18, 1976Assignee: Imperial Chemical Industries LimitedInventors: John Massey, Martin Alan Shepley, Roger N. Suiter, John M. Murphy
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Patent number: 3955920Abstract: Process for washing textiles in which the washing treatment is carried out in the presence of a cation exchanger containing carboxyl groups in the form of alkali salts and capable of removing calcium and magnesium ions from the washing liquor, and a washing agent for use in said process.Type: GrantFiled: March 30, 1973Date of Patent: May 11, 1976Assignee: Henkel & Cie G.m.b.H.Inventors: Carl Heinrich Krauch, Axel Sanner, Guenter Jakobi, Edmund Schmadel
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Patent number: 3956162Abstract: A cleaning composition in the form of a thixotropic paste which consists essentially of finely divided insoluble particulate matter, water, a petroleum distillate boiling from 150.degree. to 250.degree.C., a hydrocarbon or halogenated hydrocarbon liquid boiling from about 35.degree. to 75.degree.C., and an emulsifying surfactant.Type: GrantFiled: June 15, 1973Date of Patent: May 11, 1976Assignee: E. I. Du Pont de Nemours and CompanyInventor: William Jacob Lautenberger
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Patent number: 3954647Abstract: Improved drycleaning results (when compared on the International Fabricare Institute rating scale of cleaning/greying ratios) are obtained by the addition of up to one ounce per gallon of drycleaning solvent of a 1-hydroxyethyl-2-fatty acid imidazoline and "free" water (water added after an emulsion of water and detergent is formed in the drycleaning bath).Type: GrantFiled: May 23, 1974Date of Patent: May 4, 1976Assignee: Anscott Chemical Industries, Inc.Inventors: Clifford A. Neros, Robert A. Ward
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Patent number: 3951597Abstract: A method of dry cleaning fabrics, for instance, draperies or clothing, in situ, by forcefully infusing the fabric in the open atmosphere with special fast-acting, versatile dry cleaning solvent so as to dissolve and suspend various stains and soils in the fabric, even though firmly set due to age, and promptly drawing ambient air and droplets of soil-laden solvent by suction into a closed waste and suction chamber where the soil is deposited in the form of a sludge, while the carrier air and solvent is discharged to the atmosphere. A special, highly effective, fast-acting, nonflammable and nontoxic solvent is provided.Type: GrantFiled: August 31, 1973Date of Patent: April 20, 1976Assignee: Steamatic, Inc.Inventor: Scott W. Mooring
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Patent number: 3933425Abstract: A method of chemically cleaning textiles in organic solvents with the use of cleaning intensifiers and small quantities of water, comprises bringing the solvents during the cleaning operation into contact with inorganic or organic adsorption materials which are provided with an insolubly fixed impregnation of polycondensation products containing polyalkylene glycol units.Type: GrantFiled: June 29, 1973Date of Patent: January 20, 1976Assignee: Henkel & Cie GmbHInventors: Werner Grunewalder, Herbert Frotscher