For Removing Adhesively Attached Material Or Adhesive Agent From A Substrate (e.g., Wallpaper, Gummed Label, Etc.) Patents (Class 510/200)
  • Publication number: 20020129840
    Abstract: 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: Application
    Filed: February 13, 2002
    Publication date: September 19, 2002
    Applicant: EMERALD AGROCHEMICALS COMPANY AVV
    Inventors: Hang-Chang Bobby Chen, Edward A. Rowe
  • Patent number: 6399554
    Abstract: 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: Grant
    Filed: June 9, 2000
    Date of Patent: June 4, 2002
    Assignee: National Starch and Chemical Investment Holding Corporation
    Inventors: John Harrington, Melissa L. Sardina, David W. Lydzinski
  • Patent number: 6319884
    Abstract: 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: Grant
    Filed: June 16, 1998
    Date of Patent: November 20, 2001
    Assignee: International Business Machines Corporation
    Inventors: Marilyn R. Leduc, Harold G. Linde, Gary P. Viens
  • Patent number: 6265367
    Abstract: 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: Grant
    Filed: May 13, 1999
    Date of Patent: July 24, 2001
    Assignee: S. C. Johnson & Son, Inc.
    Inventors: Ian C. Callaghan, Balvinder Adat, Judith Ann Freeman
  • Patent number: 6057276
    Abstract: 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: Grant
    Filed: April 30, 1999
    Date of Patent: May 2, 2000
    Assignee: Decora Incorporated
    Inventor: John Ralph Smith
  • Patent number: 6017863
    Abstract: 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: Grant
    Filed: May 22, 1998
    Date of Patent: January 25, 2000
    Assignee: Church & Dwight Co., Inc.
    Inventors: Frank Cala, Alfredo Vinci
  • Patent number: 6013612
    Abstract: 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: Grant
    Filed: April 2, 1999
    Date of Patent: January 11, 2000
    Assignee: Showa Denko K.K.
    Inventors: Makoto Saito, Tohru Yamamoto, Sumio Soya
  • Patent number: 5977051
    Abstract: 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: Grant
    Filed: January 5, 1998
    Date of Patent: November 2, 1999
    Assignee: Joe A. Dominguez, Jr.
    Inventor: Joe A. Dominguez, Jr.
  • Patent number: 5929006
    Abstract: 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: Grant
    Filed: October 22, 1997
    Date of Patent: July 27, 1999
    Assignee: Showa Denko K.K.
    Inventors: Makoto Saito, Tohru Yamamoto, Sumio Soya
  • Patent number: 5929005
    Abstract: 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: Grant
    Filed: December 4, 1998
    Date of Patent: July 27, 1999
    Assignee: Decora, Incorporated
    Inventor: John Ralph Smith
  • Patent number: 5916857
    Abstract: 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: Grant
    Filed: November 17, 1997
    Date of Patent: June 29, 1999
    Assignee: Federal Service & Supply, Inc.
    Inventors: Janice T. Watson, John W. Faulk
  • Patent number: 5851435
    Abstract: 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: Grant
    Filed: May 10, 1996
    Date of Patent: December 22, 1998
    Assignee: Occidental Chemical Corporation
    Inventors: Hang-Chang Bobby Chen, Edward A. Rowe
  • Patent number: 5780408
    Abstract: 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: Grant
    Filed: May 23, 1996
    Date of Patent: July 14, 1998
    Assignee: MMZ Solutions Pty. Ltd.
    Inventors: Mark John Russell, Michael John Rickhuss, Zygmunt Joseph Zielinski
  • Patent number: 5767049
    Abstract: 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: Grant
    Filed: September 17, 1996
    Date of Patent: June 16, 1998
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Kimberley A. Gaul
  • Patent number: 5756002
    Abstract: 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: Grant
    Filed: May 10, 1996
    Date of Patent: May 26, 1998
    Assignee: Occidental Chemical Corporation
    Inventors: Hang-Chang Bobby Chen, Edward A. Rowe
  • Patent number: 5688334
    Abstract: a method for removing wallpaper involving the employment of a composition comprising a surfactant, a polyhydric alcohol humectant, an organic solvent and water.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: November 18, 1997
    Assignee: Minnesota Mining and Manufacturing Company
    Inventor: Kimberley A. Gaul
  • Patent number: 5688336
    Abstract: 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: Grant
    Filed: June 21, 1996
    Date of Patent: November 18, 1997
    Inventor: James B. Millard, Jr.
  • Patent number: 5672579
    Abstract: 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: Grant
    Filed: March 4, 1996
    Date of Patent: September 30, 1997
    Assignee: Monsanto Company
    Inventors: Iris Margarita Diaz, Joel Jeffry Gummeson, Mark Weir Heininger
  • Patent number: 5654268
    Abstract: 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: Grant
    Filed: June 5, 1995
    Date of Patent: August 5, 1997
    Assignee: Smith & Nephew United, Inc.
    Inventor: Michael Albert Norcia
  • Patent number: 5604193
    Abstract: A composition useful for removing adhesives and enamels from surfaces consists of d-limonene, dibasic acid ester, and N-methyl pyrrolidone.
    Type: Grant
    Filed: December 8, 1994
    Date of Patent: February 18, 1997
    Assignee: Dotolo Research Corporation
    Inventor: Jack T. Vlasblom
  • Patent number: 5531919
    Abstract: 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: Grant
    Filed: March 27, 1995
    Date of Patent: July 2, 1996
    Assignee: Roman Adhesives, Inc.
    Inventors: Gerald M. Russo, Kardar M. Majeed, Merle L. Houck