For Removing Adhesively Attached Material Or Adhesive Agent From A Substrate (e.g., Wallpaper, Gummed Label, Etc.) Patents (Class 510/200)
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Publication number: 20020129840Abstract: Disclosed is a composition of about 20 to about 80 wt % benzotrifluoride and about 20 to about 80 wt % trichloroethylene. Up to about 1 wt % of a stabilizer for the trichloroethylene can be included in the composition.Type: ApplicationFiled: February 13, 2002Publication date: September 19, 2002Applicant: EMERALD AGROCHEMICALS COMPANY AVVInventors: Hang-Chang Bobby Chen, Edward A. Rowe
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Patent number: 6399554Abstract: A cleaning composition is presented for removing an adhesive from hard substrates. The cleaning solution contains 25 to 98 percent by weight of water, 5 to 74 percent by weight of a chaotropic agent, and 0.001 to 10 percent by weight of at least one surfactant. The cleaning composition is especially effective in removing aqueous-based resin adhesives from machine parts.Type: GrantFiled: June 9, 2000Date of Patent: June 4, 2002Assignee: National Starch and Chemical Investment Holding CorporationInventors: John Harrington, Melissa L. Sardina, David W. Lydzinski
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Patent number: 6319884Abstract: Non-aqueous cleaning compositions capable of removing cured polyimides and other polymers from a metal circuitry containing substrate such as a semiconductor device for rework and other purposes without any significant adverse affect on the circuitry are provided consisting essentially of alkanolamines, preferably monoethanolamine or monoethanolamine-diethanolamine mixtures and optionally with a solvent such as NMP in an amount less than about 50% by weight. A method is also provided for removing polyimide coatings and other polymers from semiconductor devices using the cleaning compositions of the invention.Type: GrantFiled: June 16, 1998Date of Patent: November 20, 2001Assignee: International Business Machines CorporationInventors: Marilyn R. Leduc, Harold G. Linde, Gary P. Viens
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Patent number: 6265367Abstract: A liquid cleaning composition is disclosed that is suitable for cleaning strippable surface. It has an ester solvent with a Hansen solubility parameter in the range of 9.5 to 11 which is present in amount of 3.0% to 7.2% by weight based on the total weight of the composition. There is also a surfactant system in an amount of 3.5% to 7.5% by weight of active material based on the total weight of the composition. The system has a natural soap and a nonionic surfactant; an abrasive in an amount of 0.5% to 4.0% by weight based on total weight of the composition; and at least 70% by weight of water based on total weight of the composition. Methods of using and preparing the composition are also described.Type: GrantFiled: May 13, 1999Date of Patent: July 24, 2001Assignee: S. C. Johnson & Son, Inc.Inventors: Ian C. Callaghan, Balvinder Adat, Judith Ann Freeman
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Patent number: 6057276Abstract: This invention provides graffiti removers for removing permanent ink stains from painted surfaces. This graffiti removers include an active solvent for dissolving the stains, which are organic in nature, an optional secondary solvent for concentrated attack on the stain without being adversely affected by dilution with water, an emollient for maintaining a uniform dispersion of particulates in the remover and on the graffiti-stained painted surfaces, and an amorphous, particulate, mildly abrasive filler for imbiding the solvents, the filler being selected to permit the slow release of the active solvent.Type: GrantFiled: April 30, 1999Date of Patent: May 2, 2000Assignee: Decora IncorporatedInventor: John Ralph Smith
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Patent number: 6017863Abstract: An alkaline, aqueous cleaning solution which is capable of removing at least a substantial portion of uncured adhesive residues, e.g., epoxy-based adhesives, from a substrate, preferably a metal stencil substrate, contains water, an alkalinity-providing agent and a synergistic combination of surfactants, specifically an N-alkylpyrrolidone surfactant, which is preferably N-octyl-2-pyrrolidone, and an aminocarboxylic acid surfactant, which is preferably N-coco-beta-aminopropionic acid. At an active-concentration ratio of the N-alkyl-2-pyrrolidone surfactant to the aminocarboxylic acid surfactant of from about 1:1 to about 3.5:1 and a total active concentration of at least 0.30% by weight of the aqueous cleaning solution, the N-alkyl-2-pyrrolidone and aminocarboxylic acid surfactants synergistically improve the ability of the solution to remove uncured adhesive residues from the substrate, even at relatively low wash temperatures, e.g., from about 70.degree. F. to less than about 135.degree. F.Type: GrantFiled: May 22, 1998Date of Patent: January 25, 2000Assignee: Church & Dwight Co., Inc.Inventors: Frank Cala, Alfredo Vinci
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Patent number: 6013612Abstract: A cleaning agent composition which contains as major components an aminodicarboxylic acid N,N-diacetic acid salt, (particularly aspartic acid N,N-diacetic acid salt or glutamic acid N,N-diacetic acid salt) and a glycolic acid salt and of which a cleaning liquid has pH 8.5 or higher. Preferably, the composition further contains anionic surfactant and/or nonionic surfactant or an alkali metal hydroxide.The cleaning agent composition of the present invention has excellent cleaning effect and biodegradability and can be used advantageously as domestic, medical, and industrial cleaning agents.Type: GrantFiled: April 2, 1999Date of Patent: January 11, 2000Assignee: Showa Denko K.K.Inventors: Makoto Saito, Tohru Yamamoto, Sumio Soya
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Patent number: 5977051Abstract: A cleaning and dusting composition, particularly useful as a treatment for dusting implements such as a cloth or feather duster, comprised of a high quality natural wax in an alcohol solution. In the preferred embodiment, a near-saturated solution of lanolin in denatured ethyl alcohol is employed to provide a rapidly drying, non-smear, low residue, and safe dusting treatment composition.Type: GrantFiled: January 5, 1998Date of Patent: November 2, 1999Assignee: Joe A. Dominguez, Jr.Inventor: Joe A. Dominguez, Jr.
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Patent number: 5929006Abstract: A cleaning agent composition which contains as major components an aminodicarboxylic acid N,N-diacetic acid salt, (particularly aspartic acid N,N-diacetic acid salt or glutamic acid N,N-diacetic acid salt) and a glycolic acid salt and of which a cleaning liquid has pH 8.5 or higher. Preferably, the composition further contains anionic surfactant and/or nonionic surfactant or an alkali metal hydroxide.The cleaning agent composition of the present invention has excellent cleaning effect and biodegradability and can be used advantageously as domestic, medical, and industrial cleaning agents.Type: GrantFiled: October 22, 1997Date of Patent: July 27, 1999Assignee: Showa Denko K.K.Inventors: Makoto Saito, Tohru Yamamoto, Sumio Soya
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Patent number: 5929005Abstract: This invention provides graffiti removers for removing permanent ink stains from painted surfaces. The graffiti removers include an active solvent for dissolving the stains, which are organic in nature, an optional secondary solvent for concentrated attack on the stain without being adversely affected by dilution with water, an emollient for maintaining a uniform dispersion of particulates in the remover and on the graffiti-stained painted surfaces, and an amorphous, particulate, mildly abrasive filler for imbibing the solvents, the filler being selected to permit the slow release of the active solvent.Type: GrantFiled: December 4, 1998Date of Patent: July 27, 1999Assignee: Decora, IncorporatedInventor: John Ralph Smith
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Patent number: 5916857Abstract: A "stickie" remover cleaning composition consists of aliphatic petroleum distillate, d-limonene, and an aliphatic dibasic acid ester mixture containing approximately 59% dimethyl glutarate, 21% dimethyl adipate, and 20% dimethyl succinate for use in paper mill production. "Stickies" are resinous type organic materials predominately commonly found in de-inked secondary fiber. Secondary fiber is pulp derived from telephone books, computer paper, etc., and are more common in de-inked secondary fiber than in virgin pulp.Type: GrantFiled: November 17, 1997Date of Patent: June 29, 1999Assignee: Federal Service & Supply, Inc.Inventors: Janice T. Watson, John W. Faulk
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Patent number: 5851435Abstract: Disclosed is a cleaning composition of about 80 to about 99 wt % benzotrifluoride, about 1 to about 20 wt % monohydric alkanol from C.sub.1 to C.sub.4, and up to about 20 wt % of a fluorocarbon having the general formula C.sub.m H.sub.n F.sub.2m+2n, where m is 4 to 8 and n is 1 to m/2 if m is even and (m+1)/2 if m is odd. The composition is useful in cleaning greases, oils, solder fluxes, and other soils.Type: GrantFiled: May 10, 1996Date of Patent: December 22, 1998Assignee: Occidental Chemical CorporationInventors: Hang-Chang Bobby Chen, Edward A. Rowe
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Patent number: 5780408Abstract: A solution for use in removing the double sided adhesive tape from mouldings used on motor vehicles and the like. The solution comprises (a) 60-97% by weight of kerosene, (b) 2-27% by weight of oil of turpentine, (c) 1-10% by weight of an oil based surface active agent selected from the group consisting of castor oil and linseed oil, and 0-3% weight of a perfume.Type: GrantFiled: May 23, 1996Date of Patent: July 14, 1998Assignee: MMZ Solutions Pty. Ltd.Inventors: Mark John Russell, Michael John Rickhuss, Zygmunt Joseph Zielinski
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Patent number: 5767049Abstract: The present invention comprises a wallpaper remover whose composition includes at least one surfactant, at least one humectant and a major portion water. The composition should be present in an amount sufficient for the composition to be effective in removing wallpaper.Type: GrantFiled: September 17, 1996Date of Patent: June 16, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventor: Kimberley A. Gaul
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Patent number: 5756002Abstract: A cleaning solvent comprising(A) about 3 to about 20 wt % of a fluorinated compound selected from the group consisting of(1) fluorocarbons having the general formulaC.sub.m H.sub.n F.sub.2m+2-nwhere m is 4 to 8, and n is 0 to m/2 if m is even and 0 to (m+1)/2 if m is odd;(2) C.sub.5 F.sub.11 NO;(3) alkyl perfluoroethers having the general formulaR.sub.1 OR.sub.2where R.sub.1 is C.sub.3 F.sub.7 or C.sub.4 F.sub.9 and R.sub.2 is CH.sub.3 or C.sub.2 H.sub.5 ; and(4) fluorochlorocarbons having the general formulaC.sub.p H.sub.q Cl.sub.r F.sub.2p+2-q-rwhere p is 3, 4, or 5, q is 1 to p-1, and r is 1 to p-1;(B) up to about 15 wt % of a C.sub.1 to C.sub.4 alkanol; and(C) the remainder benzotrifluoride.Type: GrantFiled: May 10, 1996Date of Patent: May 26, 1998Assignee: Occidental Chemical CorporationInventors: Hang-Chang Bobby Chen, Edward A. Rowe
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Patent number: 5688334Abstract: a method for removing wallpaper involving the employment of a composition comprising a surfactant, a polyhydric alcohol humectant, an organic solvent and water.Type: GrantFiled: April 15, 1996Date of Patent: November 18, 1997Assignee: Minnesota Mining and Manufacturing CompanyInventor: Kimberley A. Gaul
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Patent number: 5688336Abstract: A solvent that will remove all types of commercially available water soluble polymers by breaking the covalent bonds within the polymer molecules such that these polymers can then be removed from all surfaces and equipment completely and safely by washing away with water.The solvent consists of (in a 21/2 gallon concentrated solution) 4% of ammonium chloride, 29% of ammonium hydroxide, and 67% water.Type: GrantFiled: June 21, 1996Date of Patent: November 18, 1997Inventor: James B. Millard, Jr.
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Patent number: 5672579Abstract: A cleaning solution consisting essentially of dimethyl ester, water and one or more organic solvents completely miscible at 23.degree. C. with dimethyl ester and water, said water present at at least ten weight percent based on the weight of solution components.Type: GrantFiled: March 4, 1996Date of Patent: September 30, 1997Assignee: Monsanto CompanyInventors: Iris Margarita Diaz, Joel Jeffry Gummeson, Mark Weir Heininger
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Patent number: 5654268Abstract: An adhesive cleansing solvent for removing medical adhesive from the skin comprises an oxyalkylene alkyl ether such as dipropylene glycol monomethyl ether and a liquid aliphatic hydrocarbon such as a mixture of C.sub.10-11 paraffins.Type: GrantFiled: June 5, 1995Date of Patent: August 5, 1997Assignee: Smith & Nephew United, Inc.Inventor: Michael Albert Norcia
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Patent number: 5604193Abstract: A composition useful for removing adhesives and enamels from surfaces consists of d-limonene, dibasic acid ester, and N-methyl pyrrolidone.Type: GrantFiled: December 8, 1994Date of Patent: February 18, 1997Assignee: Dotolo Research CorporationInventor: Jack T. Vlasblom
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Patent number: 5531919Abstract: A wallpaper stripper includes a humectant and a bond degrading component. Optionally, the stripper can include one or more of a surfactant, a high boiling point solvent and a stabilizer. A method of using the humectant in a wallpaper stripper includes the steps of mixing the humectant and the bond degrading component together. When placed on a surface having wallpaper to be removed, the stripper remains moist for an extended time period to facilitate penetration of the bond degrading component and degradation of the bond.Type: GrantFiled: March 27, 1995Date of Patent: July 2, 1996Assignee: Roman Adhesives, Inc.Inventors: Gerald M. Russo, Kardar M. Majeed, Merle L. Houck