Mixing With Fluorine- Or Iodine-containing Organic Compound Or Composition; Or Product Thereof Dnrm Patents (Class 524/462)
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Patent number: 5571858Abstract: The present invention provides colored and colorless aqueous nail varnishes which contain 10 to 59% by weight of a film forming polymer present in a dispersed state, from 0.01 to 1% by weight of a water-soluble perfluoroalkyl compound and form 40 to 90% by weight of water. The presence of the water-soluble perfluoroalkyl compound makes it possible to provide excellent aqueous nail varnishes with improved spreading properties.Type: GrantFiled: May 25, 1994Date of Patent: November 5, 1996Assignee: L'OrealInventors: Valerie de La Poterie, Myriam Mellul
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Patent number: 5569691Abstract: The invention relates to a rubber-elastic composition which comprises a polyether material, and which in the completely vulcanized and completely polymerized form, contain 0.1 to 15 wt. %, relative to the total weight of the composition, of at least one hydrophilic nature imparting agent selecting from the group consisting of a hydrophilic silicone oil having one or more siloxane groups as a hydrophobic part and one or more ether groups as a hydrophilic part, a fluorinated hydro-carbon, a block copolymer of ethylene oxide/propylene oxide, a fatty alcohol derivative, an alkyl phenol derivative, a fatty amine, an amine oxide, a fatty acid glycol and glycerin derivative, a fatty acid, and a fatty acid monoester. The composition is suitable as dental impression composition and has, in the completely polymerized state, even with multiple disinfections in an aqueous disinfecting solution, a continuing good ability to flow on (small wetting angle) and an unchanged dimensional stability.Type: GrantFiled: March 7, 1994Date of Patent: October 29, 1996Assignee: Thera Patent GmbH & Co. KG Gesellschaft fur Industrielle SchutzrechteInventors: Rainer Guggenberger, Erich Wanek, Oswald Gasser
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Patent number: 5556906Abstract: Adhesive compositions comprising an aqueous based adhesive and one or more hydrophilic hydrocarbon surfactant(s) or fluorochemical surfactants and methods for bonding porous materials are described which are particularly suitable for bonding high density and/or high moisture content woods. Methods for bonding timber veneer and improving bond cure rates are also disclosed.Type: GrantFiled: January 4, 1993Date of Patent: September 17, 1996Assignees: Commonwealth Scientific and Industrial Research Organisation, Chemplex Australia LimitedInventors: Peter J. Collins, Yoshikazu Yazaki
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Patent number: 5536304Abstract: The invention relates to a water and oil repellency imparting composition which comprises:(a) a fluoroaliphatic radical-containing agent; and(b) a cyclic carboxylic anhydride-containing polysiloxane. Additionally, the composition may comprise:(c) an extender and/or a plasticizer. The composition provides water and oil repellent properties and a soft hand to fibrous and other substrates treated therewith.Type: GrantFiled: October 14, 1994Date of Patent: July 16, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Dirk M. Coppens, Kathy Allewaert
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Patent number: 5532310Abstract: This invention provides a fluoropolymer dispersion useful for coating applications. The dispersion is a homogeneous and non-ozone depleting dispersion comprising a lubricious fluoropolymer, an inert perfluorinated liquid, a polar solvent, and an effective amount of a surface active agent selected from the group consisting of:a. perfluoroaliphatic amidoalkanols;b. polymerized products formed from the reaction of a mixture comprising a hydrophilic monomer and a monomer of the general formula: ##STR1## wherein p and q are integers between 1 and 4 inclusive, x and y are integers between 0 and 4 inclusive, m is 1 or 2, n is an integer between 3 and 10 inclusive, X' is either a methyl group or a single hydrogen atom, g is 0 or 1, and Q is a sulfonamido constituent group according to the formula: ##STR2## wherein R.sup.Type: GrantFiled: April 28, 1995Date of Patent: July 2, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: Mark W. Grenfell, Richard M. Flynn, Patricia M. Savu
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Patent number: 5530053Abstract: Electrostatic toners comprising polymeric dyes comprising of (1) discrete segments that are dispersible in highly fluorinated solvents and (2) discrete color-imparting segments. These toners can be prepared by a means of a polymerization process, wherein macromers containing highly fluorinated dispersible segments are grafted onto a polymer having chromophores attached thereto.Type: GrantFiled: May 24, 1995Date of Patent: June 25, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventors: S. Prabhakara Rao, Terrance P. Smith
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Patent number: 5516886Abstract: The present invention provides methods for producing top anti-reflective coating compositions having a very low level of metal ions, utilizing specially treated ion exchange resins. A method is also provided for producing semiconductor devices using such top anti-reflective coating compositions.Type: GrantFiled: June 10, 1994Date of Patent: May 14, 1996Assignee: Hoechst Celanese CorporationInventors: M. Dalil Rahman, Dana L. Durham
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Patent number: 5516578Abstract: The invention relates to a water and oil repellency imparting composition which comprises:(a) a fluoroaliphatic radical-containing agent; and(b) a polymer comprising cyclic carboxylic anhydride groups.Additionally, the composition may comprise:(c) a softener and/or a plasticizer. The composition provides water and oil repellent properties to fibrous and other substrates treated therewith and it shows high compatibility with the commonly used softeners.Type: GrantFiled: October 14, 1994Date of Patent: May 14, 1996Assignee: Minnesota Mining and Manufacturing CompanyInventor: Dirk M. Coppens
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Patent number: 5512624Abstract: The invention provides shaped, substantially unoriented, compositions of PTFE, having high notched Izod impact resistance, produced in a hot compression molding process wherein heat and pressure are applied simultaneously in a selected temperature range below the melting point of the virgin, as polymerized PTFE powder.Type: GrantFiled: February 28, 1995Date of Patent: April 30, 1996Assignee: E. I. Du Pont de Nemours and CompanyInventors: Edward G. Howard, Jr., Arthur Z. Moss
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Patent number: 5512623Abstract: Permanent aqueous marker inks are provided which include surfactant, a pigment, a film-forming polymer, and water. The surfactant may be a combination of a hydrocarbon, preferably an alkylphenol ethyoxylate and a fluorocarbon, or it may be a silicone.Type: GrantFiled: October 28, 1992Date of Patent: April 30, 1996Assignee: The Gillette CompanyInventors: Rachel M. Loftin, Kimberly B. Sanborn
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Patent number: 5510406Abstract: A fluoropolymer composition for coating, which comprises a polymer having a fluorine-containing cycloaliphatic structure and at least one coupling group in its molecule and a solvent for dissolving said polymer.Type: GrantFiled: May 9, 1994Date of Patent: April 23, 1996Assignee: Asahi Glass Company, Ltd.Inventors: Masashi Matsuo, Masaru Yamauchi, Nobuko Matsunaga, Shunsuke Yokotsuka, Masao Unoki
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Patent number: 5509959Abstract: The present invention relates to precursor coating compositions which are particularly suitable for being admixed with at least one supercritical fluid used as a viscosity reduction diluent and then spraying this resultant liquid mixture of supercritical fluid and precursor coating composition onto a substrate to be coated.Type: GrantFiled: April 15, 1991Date of Patent: April 23, 1996Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: Kenneth A. Nielsen, Charles W. Glancy
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Patent number: 5508330Abstract: An improvement in barrier properties of films and molded articles containing an organic polymer is achieved by incorporation therein of fluorochemicals, fluoropolymers or mixtures thereof, wherein said fluorochemicals or fluoropolymers contain greater than 40% fluorine by weight and exhibit less than 20% weight loss at 165.degree. C., as measured by thermogravimetric analysis at 20.degree. C. per minute in air. The films and molded articles in accordance with the present invention exhibit improved vapor and chemical barrier properties.Type: GrantFiled: November 3, 1994Date of Patent: April 16, 1996Assignee: Ciba-Geigy CorporationInventors: Gregory R. Coughlin, Robert A. Falk
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Patent number: 5498657Abstract: A fluorine-containing polymer composition comprising a polymer having a functional group and a fluorine-containing aliphatic cyclic structure dissolved in a solvent mixture of an aprotic fluorine-containing solvent and a protic fluorine-containing solvent.Type: GrantFiled: August 26, 1994Date of Patent: March 12, 1996Assignees: Asahi Glass Company Ltd., Iwaki Glass Company Ltd.Inventors: Norihide Sugiyama, Atsushi Watakabe, Shunsuke Yokotsuka, Atsuo Hiroi, Masaki Naritomi, Naoko Shirota, Ko Aosaki, Masaru Nakamura
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Patent number: 5478874Abstract: A flame-retardant aromatic polycarbonate resin composition has excellent flame retardancy and high transparency without impairing excellent properties inherent to an aromatic polycarbonate resin, and is free from corroding a molding machine or a processing machine, the flame-retardant resin composition comprising 100 parts by weight of an aromatic polycarbonate resin, 0.01 to 1 part by weight of (a) a perfluoroalkane-sulfonic acid alkali salt and 0.02 to 2 parts by weight of (b) a halogenated triaryl phosphate of the formula [1], ##STR1## wherein each of Ar.sup.1, Ar.sup.2 and Ar.sup.3 is independently an aromatic hydrocarbon, and at least one halogen atom is substituted on ring-forming carbon of each aromatic hydrocarbon group.Type: GrantFiled: March 3, 1995Date of Patent: December 26, 1995Assignee: Teijin Chemicals Ltd.Inventors: Masahiro Miyouga, Shinichi Souda
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Patent number: 5470904Abstract: Permanent aqueous marker inks are provided which include surfactant, a pigment, a film-forming polymer, and water. The surfactant may be a combination of a hydrocarbon, preferably an alkylphenol ethyoxylate and a fluorocarbon, or it may be a silicone.Type: GrantFiled: February 2, 1994Date of Patent: November 28, 1995Assignee: The Gillette CompanyInventors: Rachel M. Loftin, Kimberly B. Sanborn
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Patent number: 5466743Abstract: The invention concerns a polyethylene-based ski coating containing up to 5%-wt of a fluorinated additive. This ski coating is especially suitable for making downhill and cross-country skis.Type: GrantFiled: May 27, 1993Date of Patent: November 14, 1995Assignee: Isosport Verbundbauteile Gesellschaft m.b.H.Inventor: Robert Schamesberger
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Patent number: 5461107Abstract: An elastomeric composition having improved resistance to chemical attack is provided, the elastomeric composition including a perfluoroelastomer and a non-fibrillating particulate fluorographite. Also, a process for improving the processibility and resistance to chemical attack of a perfluoroelastomer is provided, in which the perfluoroelastomer is mixed with a non-fibrillating fluorocarbon particulate polymer to form a elastomeric composition which is processed at a temperature less than the melting temperature of the non-fibrillating fluorocarbon particulate polymer to disperse the fluorocarbon polymer throughout the perfluoroelastomer while maintaining the fluorocarbon polymer in particulate form. A method of making a seal which is resistant to chemical attack for preventing the leakage of a fluid between a first member and a second member is also provided.Type: GrantFiled: September 14, 1994Date of Patent: October 24, 1995Assignee: Greene, Tweed & Co.Inventors: Harshad P. Amin, Carl A. Aufdermarsh
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Patent number: 5459188Abstract: Permanently soil resistant polymeric compositions that have fluorochemical dispersed throughout the polymer are prepared by melt extrusion of the fluorochemical with the desired polymer. Preferred polymers for extrusion with the fluorochemical are polyester, polypropylene, polyethylene, and polyamide.Type: GrantFiled: June 30, 1993Date of Patent: October 17, 1995Assignee: Peach State Labs, Inc.Inventors: R. Richard Sargent, Jeffrey R. Alender
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Patent number: 5459191Abstract: Perfluorinated cycloalkane solvents for dissolving high melting polymers containing tetrafluoroethylene, are disclosed. These solvents dissolve such polymers more rapidly, and/or are more stable, than previously known solvents. Also disclosed is a process for dissolution of the polymers and their resulting solutions. The solutions are useful for making polymer films, coatings and for encapsulating objects.Type: GrantFiled: March 31, 1994Date of Patent: October 17, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: William H. Tuminello, Robert J. Cavanaugh
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Patent number: 5457153Abstract: Proposed is an aqueous coating composition based on a polyvinyl alcohol suitable for use to provide a protective film on various electronic materials. The composition comprises, as dissolved in water, a partially saponified polyvinyl alcohol having a specified average degree of polymerization and a specified degree of saponification, a fluorine-containing surface active agent and, optionally, a quaternary ammonium hydroxide. The liquid coating composition is preferably freed from sodium ions as an impurity by an ion-exchange treatment.Type: GrantFiled: August 11, 1994Date of Patent: October 10, 1995Assignee: Tokyo Ohka Kogyo Co., Ltd.Inventors: Yoshio Hagiwara, Isao Satoh, Hatsuyuki Tanaka, Toshimasa Nakayama
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Patent number: 5444116Abstract: An elastomeric composition having improved resistance to chemical attack is provided, the elastomeric composition including a perfluoroelastomer and a non-fibrillating particulate fluorographite. Also, a process for improving the processibility and resistance to chemical attack of a perfluoroelastomer is provided, in which the perfluoroelastomer is mixed with a non-fibrillating fluorocarbon particulate polymer to form a elastomeric composition which is processed at a temperature less than the melting temperature of the non-fibrillating fluorocarbon particulate polymer to disperse the fluorocarbon polymer throughout the perfluoroelastomer while maintaining the fluorocarbon polymer in particulate form.Type: GrantFiled: July 14, 1993Date of Patent: August 22, 1995Assignee: Greene, Tweed & Co.Inventors: Harshad P. Amin, Carl A. Aufdermarsh
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Patent number: 5420191Abstract: Shaped PTFE compositions are disclosed having low creep which are produced by the application of pressure and elevated temperature. Also disclosed is a process for making shaped compositions with low creep by the application of pressure and elevated temperature.Type: GrantFiled: August 30, 1993Date of Patent: May 30, 1995Assignee: E. I. Du Pont de Nemours and CompanyInventors: Edward G. Howard, Jr., Arthur Z. Moss
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Patent number: 5397669Abstract: An electrostatic liquid toner imaging process uses a liquid toner comprises a perfluorinated solvent and polymer resin-bound pigment particles. The polymer resin is preferably a resin containing highly fluorinated or perfluorinated units within the polymer resin or a resin comprising of at least 10% perfluorinated units, the rest comprising nonfluorinated units.Type: GrantFiled: January 24, 1994Date of Patent: March 14, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventor: Prabhakara S. Rao
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Patent number: 5384374Abstract: Fluorocarbon elastomer gum is compounded with fluorinated ether compositions, the resulting compounded gum is shaped and heated to form a cured shaped article such as automotive fuel line hose or O-ring.Type: GrantFiled: July 27, 1993Date of Patent: January 24, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventors: Miguel A. Guerra, David A. Stivers
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Patent number: 5374707Abstract: New compounds including bis-.beta.-hydroxy ethyl bibenzoate containing less than 2.5%, and preferably less than 1%, diethylene glycol and a process for the production of the bis-.beta.-hydroxy ethyl bibenzoate by the condensation of 4,4'-biphenyl dicarboxylic acid and ethylene glycol at low temperature and pressure in the presence of a catalyst are disclosed. Use of the compounds to produce polyesters is also disclosed.Type: GrantFiled: February 18, 1993Date of Patent: December 20, 1994Assignee: Monsanto CompanyInventors: Jawed Asrar, David J. Weinkauff, A. Hameed Bhombal
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Patent number: 5369165Abstract: A halogen group solvent comprising a mixed solvent consisting essentially of bromochloromethane and/or 1,2-dichloroethylene and a co-solvent, wherein the co-solvent is at least one member selected from the group consisting of carbon dioxide, sulfur hexafluoride, difluorochloromethane, 1,1,1,2-tetrafluoroethane, etc., and the content of said co-solvent in the mixed solvent is 3 to 65% by weight; a polyolefin solution using the solvent; and a process for producing a three-dimensional fiber of a polyolefin using the solution.Type: GrantFiled: February 3, 1994Date of Patent: November 29, 1994Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Jinichiro Kato, Toshio Yoneyama, Kazuhiko Shimura, Yoshiaki Nakayama, Kenji Kanekiyo
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Patent number: 5364929Abstract: Disclosed herein is a process for dissolving high melting polymers containing tetrafluoroethylene units at pressures greater than autogenous pressure, using selected halogenated solvents that are often not solvents at autogenous pressure. Also disclosed are the solutions resulting from this process. The solutions are useful for preparing fibers and paper-like webs from these polymers.Type: GrantFiled: January 13, 1993Date of Patent: November 15, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Gregory T. Dee, William H. Tuminello
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Patent number: 5362769Abstract: The present invention is directed to orthodontic adhesive formulations, both light curable in the visible wavelength range, and self-curing, for use in the adherence of orthodontic appliances to the surface of etched human teeth. These formulations exhibit a high degree of surface wetting, an available source of leachable fluoride, low polymerization shrinkage, high physical properties and adhesion, and in the light curable embodiment, a post-curing capability.Type: GrantFiled: May 7, 1992Date of Patent: November 8, 1994Assignees: Ormco Corporation, Kerr Manufacturing Co.Inventors: Duncan E. Waller, Raymond F. Wong
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Patent number: 5362568Abstract: A composition and method for detecting thermal overheating of an apparatus or system and for quickly and accurately locating the portions of the apparatus or system that experience a predetermined degree of such overheating. A composition made according to the invention includes perfluorocarbon tracers (PFTs) mixed with certain non-reactive carrier compounds that are effective to trap or block the PFTs within the composition at normal room temperature or at normal operating temperature of the coated apparatus or system. When a predetermined degree of overheating occurs in any of the coated components of the apparatus or system, PFTs are emitted from the compositions at a rate corresponding to the degree of overheating of the component.Type: GrantFiled: May 27, 1993Date of Patent: November 8, 1994Assignee: Associated Universities, Inc.Inventors: Russell N. Dietz, Gunnar I. Senum
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Patent number: 5356986Abstract: Fluoroelastomers and fluoroplastics are plasticized with high-boiling fluorinated aliphatic cyclic structures to enhance processibility or to improve final properties.Type: GrantFiled: August 20, 1993Date of Patent: October 18, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: Charles W. Stewart, Peter D. Spohn
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Patent number: 5342395Abstract: A load-bearing, bioabsorbable surgical repair device manufactured from a copolymer having a plurality of first linkages of lactide or lactide/glycolide, and a plurality of second linkages of a polymer having a glass transition temperature below ambient temperature. The second linkages preferably are selected from: 1,3-dioxan-2-one; 1,4-dioxan-2-one; and .epsilon.-caprolactone.Type: GrantFiled: January 13, 1992Date of Patent: August 30, 1994Assignee: American Cyanamid Co.Inventors: Peter K. Jarrett, Donald J. Casey, Louis Rosati
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Patent number: 5328946Abstract: Perfluorinated cycloalkane solvents for dissolving high melting polymers containing tetrafluoroethylene, are disclosed. These solvents dissolve such polymers more rapidly, and/or are more stable, than previously known solvents. Also disclosed is a process for dissolution of the polymers and their resulting solutions. The solutions are useful for making polymer films, coatings and for encapsulating objects.Type: GrantFiled: August 28, 1992Date of Patent: July 12, 1994Assignee: E. I. Du Pont de Nemours and CompanyInventors: William H. Tuminello, Robert J. Cavanaugh
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Patent number: 5304594Abstract: Disclosed is a resin composition for a resin-banded bearing comprising from 25 to 65% by weight of a thermoplastic polyester elastomer, from 70 to 20% by weight of a thermoplastic polyester resin, and from 5 to 15% by weight of a filler, based on the total amount of the thermoplastic polyester elastomer, the thermoplastic polyester resin and the filler. The resin composition withstands long-term use at high temperatures of 140 or higher to exert creep-proofing performance in a stable manner.Type: GrantFiled: September 22, 1993Date of Patent: April 19, 1994Assignee: NSK Ltd.Inventor: Katsuyuki Saitou
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Patent number: 5290602Abstract: The present invention relates to copolymers which are particularly suitable in coating compositions which are sprayed with compressed fluids which act as viscosity reducing diluents.Type: GrantFiled: October 19, 1992Date of Patent: March 1, 1994Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: John N. Argyropoulos, Brian L. Hilker
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Patent number: 5286773Abstract: A composition of matter formed by melt-blending a thermoplastic polymer and from 0.01% to <1% of a fluorocarbon additive, the additive having a lower surface energy than that of the polymer; the blending resulting in a cooled admixture having a concentration of fluorocarbon additive through a cross-section of the solid composition lower in the interior thereof and higher at the surfaces thereof.Type: GrantFiled: June 17, 1992Date of Patent: February 15, 1994Assignee: Res Development CorporationInventors: Robert E. Sterling, Eugene P. Goldberg
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Patent number: 5276175Abstract: Fluorochemical compositions comprising fluorinated compounds, wherein the fluorinated compound comprises fluorochemical oligomeric portion, an organic moiety, and a group that can impart soft hand, stain release, water repellency, or a durable property when the compound is applied to a fibrous substrate, wherein the fluorochemical oligomeric portion is bonded to the organic moiety through an isocyanate-derived linking group. Also disclosed are fluorochemical compositions in the form of fluorochemical liquid dispersions and methods for preparing substrates treated with such compositions. Substrates so treated exhibit particularly durable and abrasion-resistant oil and water repellent properties. Intermediates in the preparation of the fluorochemical compositions are also disclosed. Some of the intermediates are useful as emulsifiers in fluorochemical liquid dispersions.Type: GrantFiled: April 2, 1991Date of Patent: January 4, 1994Assignee: Minnesota Mining and Manufacturing CompanyInventors: Rudolf J. Dams, Johan E. De Witte
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Patent number: 5268411Abstract: A fluorine-containing polymer composition comprising a solvent containing a block compound composed of a polyfluorinated segment and a hydrocarbon segment and a fluorine-containing polymer having a fluorine-containing aliphatic cyclic structure dissolved in the solvent.Type: GrantFiled: February 17, 1993Date of Patent: December 7, 1993Assignee: Asahi Glass Company Ltd.Inventors: Shunsuke Yokotsuka, Isamu Kaneko, Kazuya Oharu
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Patent number: 5266650Abstract: Fluorocarbon elastomer gum is compounded with fluorinated ether compositions, the resulting compounded gum is shaped and heated to form a cured shaped article such as automotive fuel line hose or O-ring.Type: GrantFiled: October 11, 1909Date of Patent: November 30, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Miguel A. Guerra, David A. Stivers
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Patent number: 5237049Abstract: A process for purifying fluoropolymers by contacting them at temperatures above 140.degree. C. with a liquid perfluorinated cycloalkane. The resulting polymers are particularly useful where polymers with reduced impurities are desirable, such as in medical devices and in parts for the semiconductor manufacturing industry. The liquid perfluorinated cycloalkanes improve the adhesion of fluoropolymer to themselves and other materials.Type: GrantFiled: August 28, 1992Date of Patent: August 17, 1993Assignee: E. I. Du Pont de Nemours and CompanyInventors: Robert J. Cavanaugh, William H. Tuminello
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Patent number: 5218031Abstract: In accordance with the present invention, there is provided an aqueous coating composition comprising in addition to water,(A) at least one water-dispersible or emulsifiable film-forming resin;(B) from about 0.1 to about 15% by weight, based on the weight of resin (A) of a hydrophobic fluoroalkene polymer; and(C) an effective amount of at least one nonionic fluorocarbon surfactant.In one preferred embodiment, the aqueous coating compositions of the present invention may contain an organic phosphate ester. The compositions may also contain one or more pigments. The invention also relates to the use of such coating compositions for depositing coatings on metal substrates, and in particular, for coatings on phosphated metal substrates.Type: GrantFiled: June 10, 1991Date of Patent: June 8, 1993Assignee: Man-Gill Chemical CompanyInventors: Daniel A. Nayder, David A. Blaha
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Patent number: 5215818Abstract: A repositionable pressure-sensitive adhesive comprising from about 70% to about 99% solid, polymeric, acrylate, inherently tacky, infusible, solvent-insoluble, solvent-dispersible, elastomeric microspheres comprising at least one alkyl acrylate or alkyl methacrylate ester; and at least one polar monomer, and correspondingly, from about 30% to about 1% of a binder copolymer comprising an elastomeric polymeric backbone having pendant therefrom high Tg polymeric moieties.Type: GrantFiled: May 15, 1992Date of Patent: June 1, 1993Assignee: Minnesota Mining and Manufacturing CompanyInventors: Spencer F. Silver, Roger W. Leinen, Joaquin Delgado
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Grease compositions employing a vinylidene fluoride-hexafluoroisobutylene copolymer thickening agent
Patent number: 5210123Abstract: A vinylidene fluoride-hexafluoroisobutylene copolymer powder is employed to thicken a conventional fluorine-containing liquid lubricant to provide a grease composition which has improved lubrication character in metal bearing subjected to the simultaneous conditions of high load, high speed and elevated temperature.Type: GrantFiled: October 1, 1990Date of Patent: May 11, 1993Assignee: Dow Corning CorporationInventor: Gerardo Caporiccio -
Patent number: 5202372Abstract: Fluoroelastomeric compositions peroxy-curable, endowed with improved characteristics of processability and compatibility, and with enhanced low-temperature properties, comprising, as additives, vinylidene fluoride cotelomers having the general formula:R[(CH.sub.2 CF.sub.2).sub.n (C.sub.3 F.sub.6).sub.m (C.sub.2 F.sub.4).sub.p (C.sub.2 F.sub.3 Cl).sub.q ]X (I)wherein:X=Br, I;R is a possible halogenated alkyl radical;n, m, p, q are integers, m, p, q may also be zero.Type: GrantFiled: May 26, 1992Date of Patent: April 13, 1993Assignee: Ausimont S.p.AInventors: Giovanni Moggi, Gianna Cirillo, Alberto Fontana, Silvana Modena, Raffaele Ferro
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Patent number: 5194483Abstract: Disclosed herein are water-based protective composition for coating films. The compositions contain (a) a water-based dispersion of copolymer particles having a number average molecular weight of from 2,000 to 20,000 and a glass transition point of from -10.degree. C. to +40.degree. C. and obtained by emulsion-polymerizing 100 parts by weight of a monomer mixture consisting substantially of (X) 7-12 parts by weight of an .alpha.,.beta.-monoethylenically-unsaturated carboxylic acid and (Y) 88-93 parts by weight of at least one ester selected from the group consisting of C.sub.1-4 -alkyl acrylates and C.sub.1-4 -alkyl methacrylates; as well as specific amounts of (b) an ultraviolet absorber, (c) an antioxidant, (d) a thickening agent and (e) a surface active agent. They can form barrier coats having excellent removability, weatherability, water-proofness, heat resistance and coating-film-protecting property. Their preparation processes are also disclosed.Type: GrantFiled: November 20, 1991Date of Patent: March 16, 1993Assignee: Nippon Oil Co., Ltd.Inventor: Nobuaki Kawabata
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Patent number: 5169890Abstract: The present invention relates to a thermoplastic hot melt adhesive comprising(a) a block copolymer, said block copolymer being prepared utilizing a bromide based coupling agent, said block copolymer comprising at least two monoalkenyl arene polymer end blocks A and at least one elastomeric conjugated diene polymer mid block B, and said block copolymer having about 8 to about 65 percent by weight of said monoalkenyl arene polymer block content, each polymer block A having an average molecular weight of between about 5,000 and about 125,000, and each polymer block B having an average molecular weight of between about 10,000 and about 300,000,(b) a polyisobutylene rubber,(c) a partially cross-linked polyisobutylene rubber(d) a compatible tackifying resin,(e) a phenolic antioxidant,(f) a non-reactive phenolic resin,(g) a fluorocarbon surface active agent, and(h) a petroleum derived wax.Type: GrantFiled: October 11, 1991Date of Patent: December 8, 1992Assignee: Ciba-Geigy CorporationInventors: Rajan Eadara, Julie Szymborski, Irvin Jackson
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Patent number: 5166251Abstract: A corrosive resistant coating with deep drawability characteristics which is applied to a metal substrate as a wet film and then heated to dry and initiate curing to provide a protective coating tenaciously bonded to the substrate. The composition has a corrosion inhibiting powder metal, a drawing agent of polytetrafluorethylene (PTFE), a primary bonding resin, and a vehicle of solvents. Preferably, the coating composition also has a secondary organic resin and thixotropic, metal suspension and hydroscopic agents. The cured coating composition on a metal substrate, in most instances, eliminates the needs for additional die drawing compounds when deep cold drawing the coated metal substrate.Type: GrantFiled: July 11, 1990Date of Patent: November 24, 1992Assignee: Depor Industries, Inc.Inventors: L. Donald Barrett, Burkhard Flamme, Dale R. Hahn, Peter E. Pelloski
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Patent number: 5162407Abstract: A sealant composition especially useful for porous materials such as wood, concrete and mansonry is provided comprising: (a) a silanol-terminated polysiloxane having a molecular weight greater than about 2000; (b) a multifunctional silane having functional groups which condense with silanol groups in the presence of atmospheric moisture at room temperature to form a cross-linked polymer; and (c) a nonaqueous volatile solvent which is non-reactive with components (a) and (b).The sealant composition renders said materials waterproof by coating and filling in the pores of said material with cured silicone rubber product.In a preferred embodiment the composition also contains a metal-containing curing catalyst and a volatile or subliming chelating agent in an amount sufficient to prevent cure of the composition in the storage container prior to or during use.The composition may also comprise adhesion agents, surfactants and pigments.Type: GrantFiled: March 6, 1991Date of Patent: November 10, 1992Assignee: Investors Diversified Capital, Inc.Inventor: Ronald L. Turner
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Patent number: 5158606Abstract: A printing ink composition having a high degree of rub-off resistance comprising (a) a dispersion of a pigment in a vehicle containing a C.sub.7 -C.sub.40 oil and (b) a polymer latex emulsified in said dispersion. When employed for printing at high speeds, an anti-misting compound such as tridecyl acid phosphate, phosphoric acid, glycerol, or propylene carbonate is preferentially added to the ink composition. Where cost is not of paramount concern, a polytetrafluoroethylene wax is preferentially added to the ink composition.Type: GrantFiled: March 6, 1991Date of Patent: October 27, 1992Assignee: Sun Chemical CorporationInventors: Daniel J. Carlick, Robert W. Bassemir, Ramasamy Krishnan, Richard R. Durand, Jr.
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Patent number: 5147922Abstract: A resin composition comprising (A) a polycyanoarylether consisting essentially of the repeating unit represented by the following general formula (I) ##STR1## and having a reduced viscosity of at least 0.6 dl/g as measured at 60.degree. C. in p-chlorophenol at a concentration of 0.2 g/dl and (B) a carbonized phenolic resin is suitable for sliding parts of electric and electronic instruments and machines because it exhibits excellent abrasion resistance and reduces the damage to counterparts. The sliding characteristics of the resin composition is further increased by addition of a non-fibrous solid lubricant.Type: GrantFiled: August 22, 1990Date of Patent: September 15, 1992Assignee: Idemitsu Kosan Co., Ltd.Inventor: Tomoyoshi Murakami