With Water, Hydrocarbon, Halohydrocarbon, Or Organic Oxygen Containing Nonreactive Material Patents (Class 524/364)
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Publication number: 20010056143Abstract: In a process for the temporary protection of plastic articles, particularly plastic mouldings, against electrostatic charging and a contamination or dirtying associated therewith, the plastic article is at least partly provided with a coating, which contains an antistatic and which can be washed off with water and/or at least one organic solvent. The antistatic is in particular an electrically conductive, organic polymer. The coating is in particular applied to the plastic article in the form of a solution. The invention also covers a composition, particularly a solution, which contains at least one antistatic and at least one solvent. The antistatic is in particular an electrically conductive, organic polymer, whilst the solvent is in particular a mixture of water and organic solvents.Type: ApplicationFiled: July 6, 1999Publication date: December 27, 2001Inventors: RAMONA BAUMGAERTEL, WALTER MAIER, JUERGEN ORTMEIER
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Publication number: 20010036989Abstract: The present invention provides an adhesive composition for use in bonding a polymeric fitting to an olefin-containing component of an article used in medical applications. The adhesive composition according to the invention includes an adhesive polymer system dissolved in a solvent system. The solvent system includes an organic solvent having a solubility parameter within the range of from about 7.5 to about 10 (cal/cm3)½. Subsequent to forming a bond between the polymeric fitting and the olefin-containing component, the adhesive composition can meet the requirements for USP Class VI materials. In a preferred embodiment of the invention, the adhesive composition includes a low shear mixture of an adhesive polymer system including an atactic polypropylene and a low density polyethylene that is dissolved in a solvent system including a blend of d-limonene and a ketone selected from the group consisting of 4-heptanone and cyclohexanone.Type: ApplicationFiled: February 5, 2001Publication date: November 1, 2001Inventors: Andrew M. Rohn, Anthony S. Scheibelhoffer, James T. Kempthorn, Kenneth D. Zabielski, Deenadayalu Chundury, Timothy W. Birch
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Patent number: 6310127Abstract: An improved coating composition having one or more polymeric binders dispersed in a liquid medium, wherein the improvement comprises an anti-sag and anti-settling effective amount of a copolymer comprising a polymeric backbone comprising recurring monomeric units derived from monomers selected from the group consisting of one or more &agr;-olefins and one or more unsaturated carboxylic acids, said backbone having grafted thereto, by a covalent amide linkage, one or more polymeric grafts comprising at least one recurring monomeric unit selected from the group consisting of: —NHC(O)RC(O)NHR1 and —NH—R—C(O)— or a combination thereof, wherein R is an alkylene group of at least about 2 carbon atoms, and R1 is R or aryl.Type: GrantFiled: December 14, 1995Date of Patent: October 30, 2001Assignee: AlliedSignal Inc.Inventor: Michael Jablon
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Publication number: 20010005731Abstract: Disclosed is a flame-retardant resin composition for insulated wires, shielded wires and insulating tubes which are used in the field requiring high-frequency current transmission, for example, in the field of high-density wiring of internal circuits in electronic appliances. The composition comprises (a) a thermoplastic polyolefinic resin having a density of smaller than 0.89, which is prepared by copolymerizing ethylene and a non-polar &agr;-olefin in the presence of a single-site metallocene catalyst, (b) a halogen-containing flame retardant, and (c) zinc oxide. After crosslinking, the composition is used in forming an insulating coating for insulated wires and shielded wires, and in forming insulating tubes.Type: ApplicationFiled: February 12, 2001Publication date: June 28, 2001Applicant: Sumitomo Electric Industries, Ltd.Inventors: Hiroshi Hayami, Yumi Kawabata, Satoshi Ebina
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Patent number: 6184279Abstract: Coating compositions and coated substrates with the cured coatings of at least one curable film-forming resinous material along with an effective degassing amount of a material having the structure: and dimer derivatives thereof wherein R and R′ are the same or different and are primary alkyl groups with 1 to 6 carbon atoms including methyl or an aromatic group containing at least one heteroatom. Coating compositions like powder coating compositions have the resinous material and material of Structure I and/or dimer derivatives thereof along with one or more crosslinking agents. Optionally, the coating composition like a powder coating can have pigment(s), flow control agent(s), microcrystalline wax(es), light stabilizing agent(s), and/or antioxidant(s) and the like.Type: GrantFiled: June 2, 1998Date of Patent: February 6, 2001Assignee: PPG Industries Ohio, Inc.Inventors: Lawrence G. Anderson, Karen S. Rechenberg, Karen A. Barkac
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Patent number: 6110999Abstract: A composition is disclosed that comprises at least one base polymer, at least one resin and optionally one or more additives such as a filler, colorant, among other additives. The disclosed composition can applied by spraying, immersion, brushing, rolling onto the adherent surface; caulking, among other methods of application.Type: GrantFiled: March 5, 1999Date of Patent: August 29, 2000Assignee: Denovus LLCInventors: Darren Lee Ourth, Jess Rogers, Jeffrey J. Richerson
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Patent number: 5965651Abstract: A liquid-absorbing material composition containing a crosslinking agent (component A), N-vinylcarboxamide copolymer (component B) having a functional group capable of crosslinking with the component A, water (component C), a water-soluble organic solvent (component D) and a plasticizer (component E), a molded liquid-absorbing material prepared from the composition, a method of manufacturing the molded liquid-absorbing material, and uses thereof are provided. The liquid-absorbing material composition has a high flowability, and gives a uniform continuous layer so that it can be directly molded readily into film- or sheet-shaped molded liquid-absorbing material without requiring secondary processing as in the case of conventional water-absorbing polymer.Type: GrantFiled: November 22, 1996Date of Patent: October 12, 1999Assignee: Showa Denko K.K.Inventors: Tetsuya Ishii, Tetsuhiko Yamaguchi
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Patent number: 5962560Abstract: The present invention relates to a low VOC solvent based adhesive comprising a mixture of at least two organic solvents and a thermoplastic resin. Desirably the adhesive has a flash point of at least 100.degree. F. when measured in accordance with ASTM D3828-87. The solvent blend of the low VOC solvent based adhesive of the instant invention volatilizes at substantially reduced rates as compared to conventional solvent blends in solvent based adhesives. Furthermore, this novel low VOC solvent based adhesive is easy to apply, cost effective, and cures within a reasonable time without the use of heat, ultraviolet light or other mechanical devices. In addition, the novel low VOC solvent based adhesive has good storage stability in metal or non-metal containers.Type: GrantFiled: August 14, 1998Date of Patent: October 5, 1999Assignee: The B.F. Goodrich CompanyInventors: Carmen D. Congelio, Andrew M. Olah
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Patent number: 5952407Abstract: A novel thermosettable composition-of-matter is disclosed. One embodiment of the composition-of-matter includes a polymeric thermosettable ingredient having at least three acetoacetoxy-type functional pendant moieties as well as at least three acid-functional pendant moieties. Another embodiment of the composition-of-matter includes at least two polymeric thermosettable ingredients, one of which includes at least three acid-functional pendant moieties and the other of which includes at least three acetoacetoxy-type functional pendant moieties. The novel composition is characterized in that the acid-functional and acetoacetoxy-type functional pendant moieties crosslinkably-react together, when subjected to elevated-temperature conditions for a predetermined period of time, thereby producing a crosslinked polymeric network. The novel thermosettable composition-of-matter can be used "as is" if either of the polymeric thermosettable components is a "fluid" (i.e., is able to flow) at room temperature.Type: GrantFiled: August 28, 1996Date of Patent: September 14, 1999Assignee: S. C. Johnson Commercial Markets, Inc.Inventors: Husam A. A. Rasoul, James R. Beam
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Patent number: 5945251Abstract: 1. A process for preparing a purified solution of blocked polyhydroxystyrene resin in reaction/photoresist solvent, comprising the steps of:(1) forming an impure reaction solution comprising blocked polyhydroxystyrene resin and acidic catalyst in reaction/photoresist solvent;(2) adding amine, at least one hydrophilic solvent, at least one hydrophobic solvent and water to said impure reaction solution, thereby forming an aqueous phase comprising water, the hydrophilic solvent, and at least one salt of the amine and the acidic catalyst and an organic phase comprising the hydrophilic solvent, the hydrophobic solvent, the reaction/photoresist solvent and the blocked polyhydroxystyrene resin;(3) separating the aqueous phase from the organic phase; and(4) removing the hydrophilic solvent and the hydrophobic solvent from the organic phase, thereby forming a purified solution of blocked polyhydroxystyrene resin in reaction/photoresist solvent.Type: GrantFiled: May 8, 1998Date of Patent: August 31, 1999Assignee: Olin CorporationInventor: James M. Davidson
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Patent number: 5824732Abstract: An improved coating composition having one or more polymeric binders dispersed in a liquid medium, wherein the improvement comprises an anti-sag and anti-settling effective amount of a copolymer comprising a polymeric backbone comprising recurring monomeric units derived from monomers selected from the group consisting of one or more .alpha.-olefins and one or more unsaturated carboxylic acids, said backbone having grafted thereto, by a covalent amide linkage, one or more polymeric grafts comprising at least one recurring monomeric unit selected from the group consisting of:--NHC(O)RC(O)NHR.sup.1 and --NH--R--C(O)--or a combination thereof, wherein R is an alkylene group of at least about 2 carbon atoms, and R.sup.1 is R or aryl.Type: GrantFiled: January 7, 1997Date of Patent: October 20, 1998Assignee: AlliedSignal Inc.Inventor: Michael Jablon
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Patent number: 5807916Abstract: The process consists in the agglomeration of fine particles of superabsorbent polymer, carried out by introducing an aqueous solution of monomer into a slurry of aqueous polymer dispersed within a hydrocarbon liquid, this introduction being performed directly at the temperature and in conditions of polymerization of the monomer. A superabsorbent product is thus obtained in a very good yield, in the form of aggregates of particles such that the fraction passing through a 100-micron screen is less than 1%.Type: GrantFiled: April 10, 1996Date of Patent: September 15, 1998Assignee: Elf Atochem S. A.Inventors: Christian Collette, Manuel Hidalgo, Andre Kowalik, Emmanuel Puchois, Shu-Rong Rebre
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Carboxylic acid functional polyurethane polymers and blends thereof used in magnetic recording media
Patent number: 5759666Abstract: The invention provides novel macromonomer and carboxyl functional polyurethanes having a high carboxyl content. The invention further provides dispersions, coatings and magnetic recording media comprising these polyurethanes, or blends or copolymers of these polyurethanes with quaternary ammonium compounds. The invention further provides novel dispersions, coatings and magnetic recording media comprising combinations of carboxyl functional polyurethanes having a high carboxyl content with quaternary ammonium polymers.Type: GrantFiled: December 21, 1995Date of Patent: June 2, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: James G. Carlson, Nelson T. Rotto, Jeffrey T. Anderson, Carol-Lynn Spawn, Albena V. Blagev -
Patent number: 5731368Abstract: Aqueous dispersions of vinyl polymers are disclosed. The polymers are copolymers of a vinyl halide, a vinyl ester, e.g., vinyl acetate, and a poly(alkylene glycol)-based macromonomer, e.g., poly(ethylene glycol)-maleic anhydride. Also disclosed are processes for the preparation of the aqueous dispersions which comprise forming the copolymer by solution polymerization, converting the dissolved polymer into an aqueous dispersion and removing the solvent from the aqueous dispersion.Type: GrantFiled: September 1, 1995Date of Patent: March 24, 1998Assignee: Union Carbide Chemicals & Plastics Technology CorporationInventors: James Preston Stanley, Eric Jay Nagel, Richard Jude Burns, Walter Paul Mayer, Steven Nicholas Semerak
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Patent number: 5688856Abstract: This invention is a process for producing stable polymer emulsions and latexes with an average particle size of less than one micron. The polymers are hydrogenated block copolymers of conjugated dienes and vinyl aromatic hydrocarbons which may or may not contain polar functionality. The process comprises making a polymer cement of the polymer and a blend of a non-aromatic solvent for the vinyl aromatic hydrocarbon block which is immiscible with water and a non-aromatic cosolvent, emulsifying the polymer cement by adding it to an aqueous phase containing at least one surfactant and removing the solvent, cosolvent and excess water.Type: GrantFiled: December 30, 1996Date of Patent: November 18, 1997Assignee: Shell Oil CompanyInventors: David M. Austgen, Jr., Jeffrey G. Southwick, Bing Yang
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Patent number: 5688863Abstract: A thermoplastic polyurethane urea prepared by reacting a reaction mixture ofa) one or more polyisocyanates, withb) one or more compounds having on average at least 1.8 Zerewitinoff-active hydrogen atoms and a molecular weight of between 400 and 10,000, andc) water,wherein the water is introduced into the reaction mixture with the aid of an effective quantity of one or more emulsifiers. The reaction mixture may additionally contain d) further conventional auxiliary substances and additives.Type: GrantFiled: January 5, 1996Date of Patent: November 18, 1997Assignee: Bayer AktiengesellschaftInventors: Stephan Kirchmeyer, Hanns-Peter Muller, Hans-Georg Wussow, Bodo Rehbold
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Patent number: 5665814Abstract: An improved silane/silica sol copolymer hardcoating composition for protecting optical plastic substrates from scratching is able to be manufactured at lower costs and to provide much-improved ease of use in transportation, storage, dipbath stability, and blush resistance in ordinary cleanroom atmospheres. The silane/silica sol copolymer is formed as a direct reaction product of an acidic silica sol and an monomethyl trialkoxy silane, preferably substantially monomethyltriethoxysilane, in ratios of 30:70 to 70:30, most preferably about 40:60. A tail solvent aids blush resistance and adhesion to unprimed polycarbonate. Optionally, colloidal silica sol dissolved in water-miscible solvent may be reacted in a second stage with acidic aqueous colloidal silica sol earlier silanized with monomethyl trialkoxy silane.Type: GrantFiled: May 4, 1995Date of Patent: September 9, 1997Assignee: Abchem ManufacturingInventors: William Lewis, George Galic
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Patent number: 5639813Abstract: An improved coating composition having one or more polymeric binders dispersed in a liquid medium, wherein the improvement comprises an anti-sag and anti-settling effective amount of a copolymer comprising a polymeric backbone comprising recurring monomeric units derived from monomers selected from the group consisting of one or more .alpha.-olefins and one or more unsaturated carboxylic acids, said backbone having grafted thereto, by a covalent amide linkage, one or more polymeric grafts comprising at least one recurring monomeric unit selected from the group consisting of:--NHC(O)RC(O)NHR.sub.1 and --NH--R--C (O)--or a combination thereof, wherein R is an alkylene group of at least about 2 carbon atom, and R.sub.1 is R or aryl.Type: GrantFiled: May 15, 1995Date of Patent: June 17, 1997Assignee: AlliedSignal Inc.Inventor: Michael Jablon
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Patent number: 5637387Abstract: The present invention relates to storage-stable advanced polymaleimide compositions and prepreg products manufactured therefrom comprising (A) an advanced polymaleimide reaction product resulting from the advancement reaction of a polyimide and an alkenyl phenol; and (B) a phenothiazine added to component (A) after advancement.Type: GrantFiled: June 2, 1995Date of Patent: June 10, 1997Assignee: Ciba-Geigy CorporationInventors: Benjamin G. Chin, Roger Tietze
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Patent number: 5635551Abstract: A composition for molding products from unusable tires is disclosed. The composition for molding consists of pulverized tires, one or more resins selected from polypropylene resin, low density polyethylene resin and high density polyethylene resin and one or more chemicals selected from the group of acetone, caustic soda, glass wool, ammonium phosphate, starch and pigments. The composition components are well mixed, melted at 230.degree. C. to 350.degree. C. and molded by injecting, extruding or pressing. Products formed from the composition can be used to form various kinds of industrial construction materials which have high strength and smooth surface.Type: GrantFiled: April 19, 1996Date of Patent: June 3, 1997Inventor: Whanjo Lee
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Patent number: 5626958Abstract: The invention relates to a coating composition for PVC sections, based on a polymeric vehicle, a crosslinking agent, and a thermoplastic resin powder. The coating composition is particularly useful for coating PVC sections for windows, shutters, and doors. PVC joinery coated with the composition of the invention has exceptional impact strength and resistance to abrasion, friction, and inclement weather.Type: GrantFiled: February 1, 1994Date of Patent: May 6, 1997Assignee: Elf Atochem S.A.Inventors: Bruno D'Herbecourt, Thierry Moulin
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Patent number: 5563236Abstract: A resin composition for coating of the present invention includes a polyester containing an acid component and a polyol component, wherein the polyester is soluble or dispersible in a solvent consisting essentially of at least one solvent selected from the group consisting of cyclohexanone and isophorone; the polyester has a metal sulfonate group in an amount in the range of 0.1 to 5 mol % based on the total moles of the acid component or the polyol component and is slightly soluble in an organic solvent in the case where the content of the metal sulfonate group is 0%; and a specific gravity of the polyester at 30.degree. C. is in the range of 1.265 to 1.340.Type: GrantFiled: February 21, 1995Date of Patent: October 8, 1996Assignee: Toyo Boseki Kabushiki KaishaInventors: Hiroshi Murata, Hiroshi Tachika, Hiroshi Fujimoto
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Patent number: 5506312Abstract: A polyketone is contacted with an organic peroxyacid in a reactive, oxidization, slurry process to produce a polyester polymer.Type: GrantFiled: May 17, 1995Date of Patent: April 9, 1996Assignee: Exxon Chemical Patents Inc.Inventor: Palanisamy Arjunan
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Patent number: 5494954Abstract: An organic colloidal dispersion of polar polymeric microparticles synthesized directly in a non-aqueous polar medium is disclosed. The dispersion is particularly useful for controlling rheological properties such as sag and metallic flake orientation in coating compositions.Type: GrantFiled: November 21, 1994Date of Patent: February 27, 1996Assignee: PPG Industries, Inc.Inventors: Suryya K. Das, Soner Kilic
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Patent number: 5494947Abstract: A joint compound which remains flexible upon curing and therefore tailored for manufactured housing processes, comprising an acrylate, a biocide, a reinforcing agent, a latex, a first surfactant, a plasticizer, a coalescent agent, a fungicide, a filler, and a second coalescent, all materials being present in predetermined weight percents. A method for producing flexible joints is also provided whereby joints formed by abutting panels are sealed with a joint compound, said joint compound having the characteristic of remaining flexible upon curing or setting.Type: GrantFiled: October 28, 1994Date of Patent: February 27, 1996Assignee: Lynxx International Inc.Inventor: James C. Kaplan
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Patent number: 5468795Abstract: Priming composition containing a homogeneous liquid solution containing a polymeric material and at least one water-miscible solvent in an amount sufficient to provide adhesion between wet or dry road surface materials and adhesive coated articles. The priming composition allows the marking of roadways with pressure sensitive adhesive articles even on wet or damp roadway surfaces. Also a method for priming roadway surfaces.Type: GrantFiled: June 17, 1993Date of Patent: November 21, 1995Assignee: Minnesota Mining and Manufacturing CompanyInventor: Harald Guder
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Patent number: 5397826Abstract: A coating composition for applying a transparent magnetic recording layer to a support which comprises a polymeric binder, ferromagnetic particles and a dispersing medium for the polymeric binder, the dispersing medium comprising (a) a compound having the formula ##STR1## where R is alkyl having 1 to 8 carbon atoms, phenyl or benzyl;R' is hydrogen, methyl or ethyl; andR" is alkyl having 1 to 5 carbon atoms; and(b) methylene chloride, or lower alkyl ketones or mixtures of methylene chloride and lower alkyl ketones.Type: GrantFiled: December 22, 1993Date of Patent: March 14, 1995Assignee: Eastman Kodak CompanyInventor: Ronald M. Wexler
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Patent number: 5326688Abstract: A solvent mixture of 8 to 30 weight percent of n-propyl acetate 1-methoxy-2-propanol or cyclohexane, 50 to 55 weight percent of acetone and the balance methanol is employed in a coating composition for applying a polymeric antistatic layer.Type: GrantFiled: May 27, 1993Date of Patent: July 5, 1994Assignee: Eastman Kodak CompanyInventors: Ronald M. Stimson, James Skoronski, Thomas M. Smith, Jack J. Holt
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Patent number: 5321054Abstract: Compositions, with controlled and programmed hardening, to record mucodynamic dental impressions, characterized in that they comprise:______________________________________ Polyvinyl acetate (PVAc) 50-85% by weight C.sub.3 to C.sub.6 aliphatic ketones 2-25% by weight C.sub.3 to C.sub.8 aliphatic esters 1-25% by weight C.sub.2 to C.sub.10 aliphatic alcohols 1-25% by weight and/or aliphatic ethers Non-toxic, non-aromatic 0.5-10% by weight plasticizing oils selected from the group consisting of dioctyl adipate, glycerol triacetate and polyglycols Non-toxic and non-extractable 0-2% by weight black, yellow, red or white organic pigments or a combination thereof ______________________________________and is free of any gel-forming components, peroxide-based catalysts, aromatic compounds and incompatible plasticizers.Type: GrantFiled: September 18, 1992Date of Patent: June 14, 1994Inventor: Giovanni Pasini
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Patent number: 5280061Abstract: A sprayable adhesive composition superior in removability from a surface of paper and making it difficult to cause an adhesive transfer phenomenon to a surface to be affixed, which is constructed by dispersing adhesive microspheres having an average particle diameter of 10 to 100 .mu.m obtained by subjecting a composition containing a (meth)acrylate, a water-soluble monomer copolymerizable with the (meth)acrylate, and an oil-soluble polyfunctional monomer having two or more polyumerizalbe unsaturated groups in a molecule to aqueous suspension copolymerization under the presence of an oil-soluble polymerization initiator and a surface-active agent in an aerosol-dispersion medium containing a first solvent for maintaining dispersion properties of the adhesive microspheres so as to exhibit sprayable properties, a second solvent for restraining the swelling of the adhesive microspheres, and an aerosol propellant.Type: GrantFiled: September 5, 1991Date of Patent: January 18, 1994Assignee: Sekisui Kagaku Kogyo Kabushiki KaishaInventors: Nobuyasu Haraguchi, Takao Kihara
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Patent number: 5264523Abstract: A uniform mixture of a polytetrafluoroethylene molding powder and an organic filler, which can provide moldings having improved properties without lowering the appearance and mechanical property, is obtained without sticking the filler to the wall of a mixer by mixing the molding powder and the filler in the presence of a silane coupling agent and a polar solvent, or by previously treating the organic filler with the silane coupling agent and mixing the treated filler with the molding powder.Type: GrantFiled: August 1, 1990Date of Patent: November 23, 1993Assignee: Daikin Industries, Ltd.Inventors: Norimasa Honda, Tomohiko Hirata, Hirokazu Yukawa
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Patent number: 5250598Abstract: A quick drying liquid electrical tape formulation having good shelf life. The formulation forms a durable vinyl coating or film on wires, junctions and objects. The formulation is comprised of at least about 10% of a vinyl material effective to achieve the durable vinyl coating. The formulation further includes a thixotropic agent to add body, and a plasticizer to impart flexibility to the vinyl coating. The vinyl material, thixotropic agent and plasticizer are admixed with solvents comprising at least one drying agent. The formulation further including a stabilizing agent and at least one solvent, such that the thixotropic agent and plasticizer enable the application of a satisfactory coating using the formulation.Type: GrantFiled: April 10, 1991Date of Patent: October 5, 1993Inventors: Peter Dornau, Robert R. Russo, Jeffrey Tieger
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Patent number: 5218028Abstract: A single-layer two-component polyurethane lacquer which is particularly suitable for the high-gloss coating of polystyrene. A lacquer which can be sprayed having a potlife of at least 16 hours and a flash point exceeding 21.degree. C. is obtained by using tertiary alcohols and diacetone alcohol as a solvent, to which a thermoplastic acrylate resin is added as an adhesive.Type: GrantFiled: September 2, 1992Date of Patent: June 8, 1993Assignee: U.S. Philips CorporationInventor: Rutgerus H. M. van Elferen
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Patent number: 5204183Abstract: An encapsulated breaker chemical composition used in a fracturing process in an oil or gas stimulation operation which comprises: (a) a breaker chemical; (b) a water soluble sealing layer, such as urea, having a thickness within the range of about 1 to about 30 microns deposited on the surface of said breaker chemical and encapsulating said breaker chemical; and (c) a pinhole free coating of a neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the coated breaker chemical, wherein said neutralized sulfonated polymer encapsulates the breaker chemical and is permeable to the breaker chemical.Type: GrantFiled: January 3, 1992Date of Patent: April 20, 1993Assignee: Exxon Research and Engineering CompanyInventors: Lee A. McDougall, John C. Newlove, Pacifico V. Manalastas, Evelyn N. Drake
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Patent number: 5192615Abstract: An encapsulated breaker chemical composition used in a fracturing process in the protection of an oil or gas stimulation operation which comprises: a breaker chemical; and a pinhole free coating of a neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the breaker chemical, wherein said neutralized sulfonated polymer encapsulates the breaker chemical, wherein the neutralized sulfonated polymer is permeable to the breaker chemical and the neutralized sulfonated polymer is non-reactive to the breaker chemical.Type: GrantFiled: January 3, 1992Date of Patent: March 9, 1993Assignee: Exxon Research & Engineering CompanyInventors: Lee A. McDougall, John C. Newlove, Pacifico V. Manalastas, Evelyn N. Drake
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Patent number: 5187011Abstract: An encapsulated breaker chemical composition used in an oil or gas stimulation operation which comprises: a breaker chemical; and a pinhole free coating of an ionically and covalently crosslinked neutralized sulfonated elastomeric polymer of about 2 to about 80 microns thick deposited onto the surface of the breaker chemical, wherein said polymer encapsulates the breaker chemical, wherein the polymer is permeable to the breaker chemical and the polymer is non-reactive to the breaker chemical.Type: GrantFiled: January 9, 1992Date of Patent: February 16, 1993Assignee: Exxon Research and Engineering CompanyInventors: Pacifico V. Manalastas, Evelyn N. Drake, Edward N. Kresge, Warren A. Thaler, Lee A. McDougall, John C. Newlove, Vijay Swarup, Albert J. Geiger
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Patent number: 5180496Abstract: The present invention describes a method for the synthesis of unsaturated aliphatic polyesters, their crosslinking by thermal treatment and the use of the corresponding crosslinked membranes to separate aromatics from saturates.Type: GrantFiled: April 16, 1992Date of Patent: January 19, 1993Assignee: Exxon Research and Engineering CompanyInventors: Guido Sartori, W. S. Winston Ho, Robert E. Noone
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Patent number: 5177296Abstract: The present invention describes a method for the synthesis of saturated aliphatic polyesters by reaction of saturated or aromatic diacid chlorides with oligomeric aliphatic polyester diols, a method to thermally crosslink membranes prepared from the above saturated aliphatic polyesters, and the use of the crosslinked membranes to separate aromatics from saturates.Type: GrantFiled: April 16, 1992Date of Patent: January 5, 1993Assignee: Exxon Research and Engineering CompanyInventors: Guido Sartori, W. S. Winston Ho, Bruce H. Ballinger
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Patent number: 5153268Abstract: An improved nail lacquer which includes a film forming resin, a plasticizer and a solvent. The improvement relates to the utilization as the film forming resin of a graft copolymer which has a main backbone chain of acrylic ester monomer units and methacrylic ester monomer units. The main backbone chain has grafted thereto side chain units of carboxyl groups and side chain units of trialkoxysilyl groups. Nail coat compositions containing these film forming resins provide improved wear resistance.Type: GrantFiled: March 5, 1991Date of Patent: October 6, 1992Assignee: Dow Corning CorporationInventors: Gary E. Legrow, Milan F. Sojka
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Patent number: 5151219Abstract: A process for removing unwanted photoresist material from the peripheral areas of a photoresist substrate comprising the steps of:(a) spin coating a photoresist solution onto a surface of a substrate, thereby applying a photoresist coating which comprises a uniform film over substantially all of said substrate surface except for unwanted photoresist material deposits at the peripheral areas of said surface;(b) contacting said peripheral area of the coated substrate with a sufficient amount of a solvent mixture comprising a mixture of ethyl lactate and methyl ethyl ketone present in a volume ratio of about 65:35 to about 25:75, respectively, to selectively dissolve said unwanted deposits without adversely affecting said uniform film; and(c) separating said dissolved deposits from said coated substrate.Type: GrantFiled: July 31, 1989Date of Patent: September 29, 1992Assignee: OCG Microelectronic Materials, Inc.Inventors: Thomas E. Salamy, Marvin L. Love, Jr., Mark E. Towner
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Patent number: 5141973Abstract: A method of preparing a polyvinyl alcohol hydrogel contains the steps of charging an aqueous solution of a polyvinyl alcohol having a degree of hydrolysis of not less than 95 mol % and an average polymerization degree of not less than 500 into a container, the aqueous solution containing the polyvinyl alcohol in a concentration of not less than 5 wt. %, cooling the aqueous solution of the polyvinyl alcohol at a temperature of from - (minus) 9.degree. C. to - (minus) 3.degree. C., subjecting the aqueous solution of the polyvinyl alcohol to physical stimulation, and then maintaining the aqueous solution of the polyvinyl alcohol at a temperature of from - (minus) 5.degree. C. to + (plus) 5.degree. C. The polyvinyl alcohol hydrogel may be contained in a plastic container. An MRI phanton is composed of the plastic container containing such polyvinyl alcohol hydrogel.Type: GrantFiled: December 27, 1989Date of Patent: August 25, 1992Assignee: Nippon Oil Co., Ltd.Inventors: Tomokazu Kobayashi, Toshio Morihiro
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Patent number: 5128403Abstract: A one-coat adhesive composition which utilizes environmentally acceptable ingredients and which can withstand high temperature conditions such as those experienced during injection molding processes. The adhesive contains a Diels-Alder adduct of a perhalogenated cyclic conjugated diene and an olefinically unsaturated dienophile having a vinyl content in excess of 50 percent, a phenolic resin, an aromatic hydroxy compound, a formaldehyde donor, a heat-activated unsaturated elastomer crosslinker, a vulcanizing agent, and a metal oxide. An adhesive bond prepared with the adhesive is resistant to high temperature fluids and corrosive agents.Type: GrantFiled: April 10, 1991Date of Patent: July 7, 1992Assignee: Lord CorporationInventors: Patrick A. Warren, Mark A. Weih, Karen M. Bond
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Patent number: 5122560Abstract: A coating compostion particularly useful in for forming exterior finishes on the exterior of vehicle parts, the binder of the composition which is in an organic liquid carrier is a polyesterurethane and a multifunctional organic polyisocyanate crosslinking agent; wherein the polyesterurethane is formed by reacting a hydroxy functional polyester with a hydroxy containing carboxylic acid and an organic polyisocyanate andthe multifunctional organic polyisocyanate crosslinking agent has at least three reactive isocyanate groups and may be blocked with a blocking agent; coated parts, laminates and composite structures made with the coating composition are also part of the invention.Type: GrantFiled: December 12, 1989Date of Patent: June 16, 1992Assignee: E. I. Du Pont de Nemours and CompanyInventor: Jeffery W. Johnson
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Patent number: 5110486Abstract: An encapsulated breaker chemical composition used in an oil or gas stimulation operation which comprises: a breaker chemical; and a pinhole free coating of an ionically and covalently crosslinked neutralized sulfonated elastomeric polyer of about 2 to about 80 microns thick deposited onto the surface of the breaker chemical, wherein said polymer encapsulates the breaker chemical, wherein the polymer is permeable to the breaker chemical and the polymer is non-reactive to the breaker chemical.Type: GrantFiled: March 28, 1991Date of Patent: May 5, 1992Assignee: Exxon Research and Engineering CompanyInventors: Pacifico V. Manalastas, Evelyn N. Drake, Edward N. Kresge, Warren A. Thaler, Lee A. McDougall, John C. Newlove, Vijay Swarup, Albert J. Geiger
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Patent number: 5106894Abstract: A surface coating composition comprising in combination between about 15 to 75 percent by volume fluoropolymer resin having UV absorbent properties, up to about 30 percent by volume acetic acid ester, up to about 60 percent by volume methyl amyl ketone, and between 1 to 20 cc per gallon dibutyltin dilaurate. To this mixture, a cross-linking/hardening agent is added in sufficient amount. Additional components may be added for specific application environments. The liquid composition can then be applied to the surface to be coated, where it will cross-link and harden adhered to the surface.Type: GrantFiled: March 20, 1991Date of Patent: April 21, 1992Inventor: Robert E. Diefendorf
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Patent number: 5047451Abstract: A corrosive resistant coating composition with improved weldability 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 corrosion inhibiting finely divided aluminum or stainless steel, a weldability agent of finely divided nickel, a primary bonding resin, and a vehicle of solvents. Preferably, the composition also has a secondary organic resin and thixotropic, metal suspension and hydroscopic agents.Type: GrantFiled: November 28, 1988Date of Patent: September 10, 1991Assignee: Depor Industries, Inc.Inventors: L. Donald Barrett, Dale R. Hahn, Peter E. Pelloski, Richard W. Ziegler
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Patent number: 4964916Abstract: A copolymer reaction product of a salt of a quaternary acrylate and a polyalkylene glycol acrylate. The copolymer is useful as an anti-static agent in anti-static varnish compositions for packaging gravure printing.Type: GrantFiled: March 22, 1990Date of Patent: October 23, 1990Assignee: Sun Chemical CorporationInventor: Robert Catena
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Patent number: 4957997Abstract: A facile process for converting polyketones containing pendant functional groups to polyesters is provided. The process involves reacting the polyketone with an organic peroxyacid oxidizing agent in an inert liquid medium at a temperature from -20.degree. C. to 150.degree. C. to convert substantially all or only a portion of the keto functionality to ester moieties. The polyketones are obtained by copolymerizing carbon monoxide and a vinyl or vinylidene monomer having at least one functional group containing one or more oxygen, nitrogen, sulfur or halogen atoms.Type: GrantFiled: February 16, 1990Date of Patent: September 18, 1990Assignee: Quantum Chemical CorporationInventors: Biau-Hung Chang, Jack Kwiatek
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Patent number: 4920167Abstract: Disclosed is dispersion of a polyurethane-urea polymer in a continuous phase. This dispersion contains about 0.1 to about 5 parts by weight of an ionizable, non-volatile salt per 100 parts by weight of polyurethane-urea polymer. Polyurethane-urea coatings made from this dispersion have excellent static dissipative properties.Type: GrantFiled: November 10, 1988Date of Patent: April 24, 1990Assignee: The Dow Chemical CompanyInventors: Sven H. Ruetman, Joginder N. Anand, G. Robert Collins
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Patent number: RE35068Abstract: Ionized crosslinked polyacrylamide gels are provided that are capable of drastic volume changes in response to minor changes in solvent concentration, temperature of pH or salt concentration of the solvent. The gels can contain a metal ion.Type: GrantFiled: March 29, 1994Date of Patent: October 17, 1995Assignee: Massachusetts Institute of TechnologyInventors: Toyoichi Tanaka, Izumi Nishio, Shao-Tang Sun