Contains Two Or More Fluorine Or Iodine Organic Compounds Patents (Class 524/463)
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Patent number: 6342550Abstract: The purpose of the present invention is to provide a flame-retardant polycarbonate resin composition which contains phosphorus-free flame-retardant(s), has an excellent impact resistance, an excellent heat resistance as well as an excellent moldability, and can satisfy a severe flammability level. According to the present invention, there is provided a flame-retardant polycarbonate resin composition which comprises (A) 100 parts by weight of an aromatic polycarbonate resin, (B) 0.01-5 parts by weight of an organic sulfonic acid metal salt, (C) 0.01-5 parts by weight of a fluorinated polyolefin, (D) 0.2-20 parts by weight of a diene-containing multi-layered polymer, and wherein the content of a phosphorus-containing flame-retardant is less than 0.5 parts by weight.Type: GrantFiled: November 15, 1999Date of Patent: January 29, 2002Assignee: Mitsubishi Engineering Plastics CorporationInventors: Kazuhiko Ishii, Ken Shimomai
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Publication number: 20010056144Abstract: An improved via and contact hole fill composition and method for using the composition in the dual damascene production of circuits is provided. Broadly, the fill compositions include a quantity of solid components including a polymer binder and a solvent system for the solid components. The boiling point of the solvent system is less than the cross-linking temperature of the composition. Preferred solvents for use in the solvent system include those selected from the group consisting of alcohols, ethers, glycol ethers, arnides, ketones, and mixtures thereof. Preferred polymer binders are those having an aliphatic backbone and a molecular weight of less than about 80,000, with polyesters being particularly preferred.Type: ApplicationFiled: July 30, 2001Publication date: December 27, 2001Inventors: James E. Lamb, Xie Shao
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Patent number: 6309708Abstract: A paint composition being capable of forming a coating film which is remarkably excellent in stain-proofing property whereby neither stains in the air nor stains marked due to rain water adhere to or are deposited on the coating film surface and a stain-proofing agent for adding to the composition are provided. The paint composition comprises a stain-proofing agent comprising an organometallic compound represented by XbM(OR1)aR2c, its oligomer or cooligomer comprising two or more of the organometallic compounds; a resin for paints; and a curing agent and/or a curing catalyst, provided that a stain-proofing agent comprising a compound represented by the formula (2): is excluded.Type: GrantFiled: March 23, 1998Date of Patent: October 30, 2001Assignee: Daikin Industries, Ltd.Inventors: Haruhiko Mohri, Yasushi Yonei
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Patent number: 6303682Abstract: A process for producing plexifilamentary products by spinning from a spin fluid of a polyolefin dissolved in a primary spin agent selected from the group consisting of 1,1,2-trichloro-2,2-difluoroethane and isomers thereof; 1,1,3-trichloro-2,2,3,3-tetrafluoropropane and isomers thereof; 1,2-dichloro-3,3,3-trifluoropropane and isomers thereof; and 1,2-dichloro-1-fluoroethylene; and a co-spin agent; and also a spin fluid of a polyolefin dissolved in a primary spin agent selected from the group consisting of 1,1,2-trichloro-2,2-difluoroethane and isomers thereof, 1,1,3-trichloro-2,2,3,3-tetrafluoropropane and isomers thereof; 1,2-dichloro-3,3,3-trifluoropropane and isomers thereof; and 1,2-dichloro-l-fluoroethylene; and a co-spin agent.Type: GrantFiled: October 5, 2000Date of Patent: October 16, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Hyunkook Shin, Roger Keith Siemionko
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Patent number: 6297308Abstract: Described are chemical compositions comprising a fluorinated solvent and a nonionic, poly-fluoroalkyl, hydroxy-substituted surfactant.Type: GrantFiled: October 7, 1999Date of Patent: October 2, 2001Assignee: 3M Innovative Properties CompanyInventors: Chetan P. Jariwala, Henry C. Chang, David S. Hill
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Patent number: 6288157Abstract: This invention provides fluorochemical compounds comprising: a fluorochemical oligomeric portion comprising an aliphatic backbone with a plurality of pendant fluoroaliphatic groups, each fluoroaliphatic group having a fully fluorinated terminal group and each independently linked to a carbon atom of the aliphatic backbone through an organic linking group; an aliphatic moiety; and a linking group which links the fluorochemical oligomeric portion to the aliphatic moiety. The fluorochemical compounds are useful as topical treatments for fibrous substrates such as textiles and fabrics, and as polymer melt additives to provide desirable oil-, water and stain repellency to shaped articles such as fibers.Type: GrantFiled: May 11, 1999Date of Patent: September 11, 2001Assignee: 3M Innovative Properties CompanyInventors: Chetan P. Jariwala, Thomas P. Klun, Rudolf J. Dams, Marvin E. Jones
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Patent number: 6281281Abstract: To provide a filler-containing PTFE granular powder for molding, which has a high apparent density, a small electrostatic charge and excellent flowability and gives a molded article which is free from lowering of tensile strength and elongation and coloring attributable to a surfactant. Also a process for preparing the granular powder is provided. The granulation is carried out by wetting 100 parts by weight of a mixture of a PTFE powder and filler with 30 to 60 parts by weight of an aqueous solution containing an anionic surfactant in a concentration of not less than 10 times and less than 40 times the critical micelle concentration and then applying mechanical force to the mixture.Type: GrantFiled: May 7, 1998Date of Patent: August 28, 2001Assignee: Daikin Industries, Ltd.Inventors: Michio Asano, Tetsuo Shimizu, Shoji Kawachi
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Patent number: 6271312Abstract: A graded-refractive-index optical plastic material composed of an amorphous fluoropolymer and at least one material which differs from the polymer in refractive index by at least 0.001, wherein the material is so distributed as to have a concentration gradient in a specific direction, and a method for its production.Type: GrantFiled: December 3, 1997Date of Patent: August 7, 2001Assignee: Yasuhiro KoikeInventors: Yasuhiro Koike, Masaki Naritomi
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Patent number: 6268321Abstract: A grease made by combining polychlorotrifluoroethylene oil with a thickening agent comprising polychlorotrifluoroethylene (PCTFE) polymer. The thickening agent is made by polymerizing chlorotrifluoroethylene [R-1113] in the presence of a telogen, which is 2,2-dichloro-1,1,1-trifluoroethane[R-123] or a homolog thereof, namely CF3—CF2—CHCl2, CF3—CF2—CF2—CHCl2, and CF3—CF2—CF2—CF2—CHCl2.Type: GrantFiled: May 24, 2000Date of Patent: July 31, 2001Assignee: Halocarbon Products CorporationInventor: Lee G. Sprague
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Patent number: 6245845Abstract: To provide a fluorine-containing resin composition useful as a molding material for parts of electronic and electrical equipment which assures well-balanced enhancement of dielectric property, heat resistance, mold-processability (precise processability) and mechanical properties and the parts of electronic and electrical equipment. The fluorine-containing resin composition for parts of electronic and electrical equipment comprises 70 to 95% by weight of (I) fluorine-containing resin mixture comprising (a) a fluorine-containing resin containing polytetrafluoroethylene not to be fibrillated and (b) a thermoplastic resin other than the fluorine-containing resin and 5 to 30% by weight of (II) a metal compound whisker having a single bond strength of not less than 190 KJ/mol calculated from a dissociation energy of bond between a metal element and oxygen. The parts of electronic and electrical equipment which are obtained from the composition have a dielectric constant of not more than 3.5.Type: GrantFiled: November 3, 1999Date of Patent: June 12, 2001Assignee: Daikin Industries, Inc.Inventors: Tsuyoshi Miyamori, Masaji Komori, Takuya Arase
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Patent number: 6228943Abstract: A peroxide-curable fluorine-containing elastomer composition comprising 100 parts by weight of a fluorine-containing block polymer comprising at least one elastomeric polymer chain segment and at least one non-elastomeric polymer chain segment in which the content of said non-elastomeric polymer chain segment is less than 5% by weight, 0.05 to 10 parts by weight, preferably 0.3 to 5 parts by weight, more preferably 1 to 5 parts by weight, of an organic peroxide, and 0.1 to 10 parts by weight, preferably 0.5 to 8 parts by weight, more preferably 0.5 to 5 parts by weight, of a polyfunctional co-crosslinking agent. This composition has improved processing properties during curing and molding, while it has good tensile properties, heat resistance, oil resistance and high temperature sealing properties comparable to those of conventional peroxide-curable fluorine-containing elastomer compositions.Type: GrantFiled: November 24, 1999Date of Patent: May 8, 2001Assignee: Daikin Industries Ltd.Inventors: Tatsuya Morikawa, Mitsuru Kishine, Yoshihiro Shirai, Koji Matsumoto
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Patent number: 6225382Abstract: A fluorine-containing resin composition comprising at least one fluorine-containing polycyclic compound (A) selected from the group consisting of the following compounds (A1), (A2) and (A3), and a polymer (B) having a fluorine-containing alicyclic structure: (A1) a fluorine-containing non-condensed polycyclic compound having at least two fluorine-containing rings bonded by a bond containing at least one member selected from the group consisting of a triazine ring, an oxygen atom, a sulfur atom, a phosphorus atom and a metal atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring, (A2) a fluorine-containing non-condensed polycyclic compound having at least three fluorine-containing rings bonded directly or by a bond containing a carbon atom, each of said fluorine-containing rings being a carbon ring or a heterocyclic ring, (A3) a fluorine-containing condensed polycyclic compound which is a condensed polycyclic compound composed of at least three carbon rings or heterocyclic rType: GrantFiled: September 23, 1998Date of Patent: May 1, 2001Assignee: Asahi Glass Company Ltd.Inventors: Ikuo Matsukura, Shunsuke Yokotsuka, Katsumi Suzuki
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Patent number: 6218460Abstract: A flash-spun material comprised of at least 90% by weight of polymers selected from the groups A, B, and C; wherein group A comprises polymers with a melting point above 280° C. that are comprised of halocarbon polymers in which at least 20% of the total number of halogen atoms in each halocarbon polymer are fluorine atoms; wherein group B comprises polymers with a melting point above 280° C. that are comprised of oxyhalocarbon polymers in which at least 20% of the total number of halogen atoms in each oxyhalocarbon polymer are fluorine atoms; and wherein group C comprises fully halogenated, highly fluorinated ion exchange polymers. A process for producing such flash-spun material and a solvent for producing such flash-spun material are also provided.Type: GrantFiled: July 1, 1999Date of Patent: April 17, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Hyunkook Shin, William H. Tuminello
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Patent number: 6204301Abstract: Fibers as a reinforcing substrate are impregnated with the particles of polytetrafluoroethylene and pressed into a shape at the melting point of polytetrafluoroethylene. Alternatively, the reinforcing substrate sandwiched between polytetrafluoroethylene sheets is pressed into a shape at the melting point of polytetrafluoroethylene. In either case, the shaped article is then exposed to an ionizing radiation in an oxygen-free atmosphere at the melting point of polytetrafluoroethylene. The inherent characteristics of the polytetrafluoroethylene, i.e., heat resistance, chemical resistance, abrasion resistance and lubricity, are retained and yet radiation resistance and resin transparency are imparted.Type: GrantFiled: September 14, 1999Date of Patent: March 20, 2001Assignee: Japan Atomic Energy Research InstituteInventors: Akihiro Oshima, Akira Udagawa, Yosuke Morita, Tadao Seguchi, Yoneho Tabata
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Patent number: 6203912Abstract: An electronic article having a thin film of a triazine ring-containing fluoropolymer obtained by trimerization of a cyano group of a cyano group-containing fluoropolymer having a polymerization unit of the formula (1): —[CF2—CF(A1)]— (1) wherein A1 is —OR1CN, —CN or —R1CN, and R1 is a C1-C15 polyfluoroalkylene group which may have an ether bond.Type: GrantFiled: January 29, 1998Date of Patent: March 20, 2001Assignee: Asahi Glass Company. Ltd.Inventors: Atsushi Watakabe, Jun-ichi Tayanagi, Masayuki Tamura, Haruhisa Miyake
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Patent number: 6197866Abstract: Painting composition based on fluoropolymers in an aqueous dispersion, comprising a partially fluorinated non ionic polymeric compound as an additive for the control of the viscosity and in general of the rheological characteristics of the composition itself.Type: GrantFiled: May 25, 1999Date of Patent: March 6, 2001Assignee: Ausimont S.p.A.Inventors: Daria Lenti, Tiziana Poggio
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Patent number: 6174964Abstract: The present invention provides a novel fluorochemical oligomer, and polymer composition comprising the fluorochemical oligomeric compound and a thermoplastic or thermoset polymer. The polymer composition is useful in preparing shaped articles such as fibers and films which have desirable oil- and water repellency properties.Type: GrantFiled: September 24, 1999Date of Patent: January 16, 2001Assignee: 3M Innovative Properties CompanyInventors: Chetan P. Jariwala, Thomas P. Klun
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Patent number: 6166125Abstract: A graded-refractive-index optical plastic material comprising an amorphous fluorine-containing polymer (A) having substantially no C--H bond, and at least one fluorine-containing polycyclic compound (B) having a refractive index higher by at least 0.Type: GrantFiled: October 1, 1998Date of Patent: December 26, 2000Assignee: Asahi Glass Company Ltd.Inventors: Norihide Sugiyama, Hidenobu Murofushi, Takashi Okazoe, Masayuki Tamura, Shin Tatematsu, Jun Irisawa
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Patent number: 6136911Abstract: A flash-spun material comprised of at least 20% partially fluorinated hydrocarbon polymers in which between 10% and 70% of the total number of hydrogen atoms in each hydrocarbon polymer are replaced by fluorine atoms. The partially fluorinated hydrocarbon polymers is preferably comprised of at least 80% by weight of polymerized monomer units selected from ethylene, tetrafluoroethylene, chlorotrifluoroethylene, vinylidene fluoride and vinyl fluoride. The flash-spun material may be a plexifilamentary strand or a microcellular foam. Also provided is a process for producing flash-spun material from partially fluorinated hydrocarbon polymers in a solvent and a solution from which such polymers may be flash-spun.Type: GrantFiled: June 30, 1998Date of Patent: October 24, 2000Assignee: E.I. du Pont de Nemours and CompanyInventors: Hyunkook Shin, James Ross Waggoner, John Edward Armstrong
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Patent number: 6127498Abstract: Hydrogenated fluoromodified polymers obtainable by reaction among hydrogenated polymers and the modifier having a polyether structure:RfO(CF.sub.2 CF.sub.2 O).sub.m (CF.sub.2 O).sub.n --CF.sub.2 --A.sub.q --T.sub.p (I)wherein A is a linking bridge bound to the end group --CF.sub.2 -- of the perfluoropolyether chain, T represents one or more reactive functional groups; p and q are integers, p ranges from 1 to 4, q is an integer from 0 to 1; m and n are integers such that m/n is comprised between 0.2 and 5, Rf is a perfluoroalkyl from 1 to 3 carbon atoms.Type: GrantFiled: April 6, 1998Date of Patent: October 3, 2000Assignee: Ausimont S.p.A.Inventors: Claudio Tonelli, Giovanni Simeone, Tania Trombetta
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Patent number: 6100325Abstract: Dispersions, obtained starting from a system formed by a (per)fluorinated polymer in polar solvent, comprising at least:0.1-30% by weight of a polytetrafluoroethylene or of tetrafluoroethylene copolymers with other ethylenically unsaturated, totally or partially fluorinated, monomers;50-99% by weight of fluorinated liquid;0.01-5% by weight of surfactant selected from carboxylic acids with PFPE chain and nonionic surfactants having a perfluoroalkylic or perfluoropolyether chain with a oxyalkylenic repeating unit number lower than or equal to 6;polar solvent (water and/or alcohol) complement to 100; weight ratio lower than that of the initial system containing the (per)fluoropolymer used to prepare the dispersion.Type: GrantFiled: July 30, 1998Date of Patent: August 8, 2000Assignee: Ausimont S.p.A.Inventors: Alba Chittofrati, Paolo Lazzari, Daria Lenti
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Patent number: 6087430Abstract: A composition of matter formed by melt-blending certain thermoplastic polymers and from about 1.0 to about 7.5 wt. % 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: October 9, 1996Date of Patent: July 11, 2000Assignee: RES Development CorporationInventors: Robert E. Sterling, Eugene P. Goldberg
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Patent number: 6048921Abstract: The present invention relates to an applicator for flowable materials which comprises a generally cylindrical housing having a chamber, a discharge opening, a wick projecting through said discharge opening, and a projecting structure for shielding the user from flowable materials and for preventing placement of the applicator in inappropriate receptacles. Further, the present invention relates to a storage and shipping rack for said applicators and to a method of dispensing flowable materials onto a surface. Preferably, the applicator is filled with metal coating and treating compositions such as aqueous acidic chromate compositions. Most preferably, the acidic compositions contain a very low concentration of a fluorinated surfactant.Type: GrantFiled: August 12, 1997Date of Patent: April 11, 2000Assignee: Henkel CorporationInventors: Robert Ashton White, Lester Steinbrecher
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Patent number: 6037399Abstract: An aqueous microemulsion polymerization procedure is described in which very small colloidal melt-processible fluoropolymer particles are produced from at least one gaseous monomer and optionally TFE. The polymerization procedure involves forming a microemulsion of at least one liquid organic compound; adding at least one gaseous free-radical polymerizable monomer to the microemulsion; and initiating polymerization by adding a free-radical initiator to the mixture.Type: GrantFiled: June 28, 1996Date of Patent: March 14, 2000Assignee: W. L. Gore & Associates, Inc.Inventors: Huey Shen Wu, Jack Hegenbarth, Chen Xin-Kang, Chen Jian-Guo
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Patent number: 6011104Abstract: Footware dressings containing fluorocarbons in a carrier base plus optional colorants and additives. These dressings create a relatively slick and non-stick surface with excellent "contamination" resistance.Type: GrantFiled: January 20, 1998Date of Patent: January 4, 2000Inventor: Joseph D. Udy
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Patent number: 5985975Abstract: The present invention provides a liquid composition containing a cationic fluorocarbon surfactant having a general formula [I] or [II] and a polymer compound in a solvent, and a liquid composition containing a cationic fluorocarbon surfactant having a general formula [III] and a polymer compound in a solvent: ##STR1## wherein Rf represents a fluorocarbon group in which at least some of the hydrogen atoms in an alkyl group having 4 to 12 carbon atoms are substituted by fluorine atoms, each of R.sub.1, R.sub.2, R.sub.3, R.sub.4, and R.sub.5 represents a hydrogen atom or an alkyl group having 1 to 3 carbon atoms, HX represents a hydrohalogenic acid, and X.crclbar. represents a halogen anion; ##STR2## wherein n represents an integer from 4 to 12, and X.crclbar. represents a halogen anion.Type: GrantFiled: January 17, 1996Date of Patent: November 16, 1999Assignee: Canon Kabushiki KaishaInventors: Yutaka Kurabayashi, Katsuhiko Takahashi
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Patent number: 5977237Abstract: A flash-spinning solution of a polyolefin dissolved in a primary solvent selected from the group consisting of methylene chloride and dichloroethylene, and a co-solvent selected from the group of hydrofluoroethers, cyclic perfluorinated hydrocarbons, and cyclic partially fluorinated hydrocarbons.Type: GrantFiled: August 25, 1997Date of Patent: November 2, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Hyunkook Shin, Roger Keith Siemionko
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Patent number: 5942572Abstract: Non-ionic compound having the general formula:R.sub.f --L--(OCHR.sub.1 --CHR.sub.2).sub.n --O--L'--R.sub.f' (I)wherein:n is an integer comprised between 4 and 60, preferably between 8 and 30;L and L', equal to or different from each other, can be selected from:--(CFY--CO--O).sub.p R'-- and --(CFY--CO--NH).sub.p R'--wherein: p is 0 or 1; Y can be F or CF.sub.3 ; R' is an alkylic radical C.sub.1 -C.sub.5,R.sub.1, R.sub.2 can be both H or the former one H and the latter CH.sub.3.R.sub.f and R.sub.f', equal to or different from each other, can be perfluoropolyethereal radicals having a number average molecular weight comprised between 250 and 1500, preferably between 400 and 1000; and its use as thickener of aqueous latexes based on fluoropolymers.Type: GrantFiled: July 7, 1997Date of Patent: August 24, 1999Assignee: Ausimont S.p.A.Inventors: Alba Chittofrati, Paolo Lazzari, Daria Lenti
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Patent number: 5932645Abstract: A coating composition for screen printing containing a fluorine rubber in a dissolved state is disclosed, wherein the solvent for the fluorine rubber comprises 60 to 100% by weight, based on the total solvent, of an ester ranging in boiling point from isoamyl acetate to isobornyl acetate. The coating composition which, even when formulated as a thick solution for providing a thick coat as used in the production of a metal gasket, hardly clogs the screen thereby making continuous coating possible.Type: GrantFiled: March 10, 1997Date of Patent: August 3, 1999Assignee: Nippon Reinz Co., Ltd.Inventors: Teruaki Kawanaka, Eiichi Oohira, Hiroo Buseki
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Patent number: 5922788Abstract: A surface coating agent includes a main ingredient compound containing a mixture of white cement and finely ground silica and carbon fibers and a water soluble hardener containing a mixture of a cationic acrylic resin and an anionic acrylic resin.Type: GrantFiled: February 6, 1997Date of Patent: July 13, 1999Inventor: Kaneo Gotan
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Patent number: 5888424Abstract: Fluoroplastics become identifiable as to source by incorporating 1 to 450 ppm of inorganic phosphor into the fluoroplastic which does not degrade the fluoroplastic upon processing at a temperature of 300.degree. C. and does not discolor the fluoroplastic but does emit radiation which is characteristic of the phosphor when the fluoroplastic is exposed to excitation radiation.Type: GrantFiled: July 24, 1997Date of Patent: March 30, 1999Assignee: E. I. du Pont de Nemours and CompanyInventors: Sina Ebnesajjad, Vadim Leonidovitch Lichtchinski, Carmine Torardi, Robert Clayton Wheland
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Patent number: 5880190Abstract: A water-based coating composition and methods of making and using the same are disclosed. It is suitable for coating a variety of substrates including polyolefinic substrates such as polypropylene, and operates without aromatic organic solvents.Type: GrantFiled: October 21, 1997Date of Patent: March 9, 1999Assignee: A-Line Products CorporationInventor: Alger E. Laura
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Patent number: 5869560Abstract: Materials not releasing gaseous organic materials during use are used as a dry-type sealing material such as a gasket disposed upon mounting an air filter to an opening of a ceiling or the like, a wet-type sealing material filled and used in a gap for connecting wall materials or partitionings, a vinyl chloride sheet or a vinyl chloride cloth as a facing material for walls and floors. Specifically, a carboxylic acid ester having a molecular weight of not less than 400 is used as a plasticizer, a phenolic compound having a molecular weight of not less 300 is used as an antioxidant, an aliphatic hydrocarbon having not less than 19 carbon atoms (for example, microcrystalline wax) is used as a lubricant, and an alkylamine ethylene oxide adduct having a molecular weight of not less than 350 is used as an antistatic agent.Type: GrantFiled: July 24, 1996Date of Patent: February 9, 1999Assignee: Taisei CorporationInventors: Sadao Kobayashi, Masayuki Imafuku, Yoshihide Wakayama
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Patent number: 5830990Abstract: The present invention provides methods for producing top anti-reflective coating compositions having a very low level of metal ions, utilizing a specially washed and modified ion exchange resin. A method is also provided for producing semiconductor devices using such ion exchange treated top anti-reflective coating compositions.Type: GrantFiled: September 29, 1995Date of Patent: November 3, 1998Assignee: Clariant Finance (BVI) LimitedInventor: M. Dalil Rahman
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Patent number: 5804633Abstract: 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: June 5, 1995Date of Patent: September 8, 1998Assignee: The Gillette CompanyInventors: Rachel M. Loftin, Kimberly Borelli Sanborn
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Patent number: 5795500Abstract: A coating or layer containing a fluorinated carbon filled fluoroelastomer wherein the resistivity of the fluorinated carbon filled fluoroelastomer is controlled. Specifically, the coating comprises fluorinated carbon and polymer component selected from vinylidenefluoride/hexafluoropropylene/tetrafluoroethelene/cure site monomer rubber and volume grafted fluoroelastomers.Type: GrantFiled: March 3, 1997Date of Patent: August 18, 1998Assignee: Xerox CorporationInventors: Kock-Yee Law, Ihor W. Tarnawskyj, Joseph Mammino, Martin A. Abkowitz, Frederick E. Knier, Jr.
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Patent number: 5789083Abstract: An aqueous fluoropolymer primer useful for coating smooth substrates is provided. The primer contains two fluoropolymer resins of differing melt viscosities and a binder which is a polyamide imide and a polyphenylene sulfide at a weight ratio in the range of 3:1 to 1:3.Type: GrantFiled: April 11, 1997Date of Patent: August 4, 1998Assignee: E. I. du Pont de Nemours and CompanyInventor: Philippe Andre Fernand Germain Thomas
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Patent number: 5744537Abstract: Enhanced fidelity of pattern transfer of aqueous developable photoresist compositions is achieved with top antirefective coatings which are fluorine-containing and have a refractive index approximately equal to the square root of the underlying photoresist and which are removable in the developer for the photoresist.Type: GrantFiled: May 27, 1997Date of Patent: April 28, 1998Assignee: International Business Machines CorporationInventors: William R. Brunsvold, George J. Hefferon, Christopher F. Lyons, Wayne M. Moreau, Robert L. Wood
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Patent number: 5733981Abstract: A method of dehydrofluorinating a fluoropolymer comprising the steps of: providing an fluoropolymer emulsion comprising water, a fluoropolymer, and substantially no organic solvent; adding to the fluoropolymer emulsion a basic compound, the base compound being added at a concentration and in an mount that does not result in coagulation of the fluoropolymer; and exposing the mixture of fluoropolymer emulsion and basic compound to reaction conditions sufficient to cause dehydrofluorination of the fluoropolymer.Type: GrantFiled: August 26, 1996Date of Patent: March 31, 1998Assignee: Minnesota Mining and Manufacturing CompanyInventors: William D. Coggio, Trang D. Pham
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Patent number: 5672647Abstract: An aqueous nail varnish free from nitrocellulose and having improved spreading properties contains 10 to 59 weight percent of a film-forming polymer present in a dispersed state, 0.01 to 1 weight percent of a water-soluble perfluoroalkyl and 40 to 90 weight percent of water.Type: GrantFiled: May 31, 1995Date of Patent: September 30, 1997Assignee: L'OrealInventors: Valerie de La Poterie, Myriam Mellul
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Patent number: 5639810Abstract: Improved elastomeric materials useful for medical and therapeutic device applications, such as penetrable septa, are described. In one aspect, the materials are deeply cleaned with solvent to significantly lower levels of undesirable organics. In another aspect, internally lubricated elastomer compositions compatible for use in medical and therapeutic device applications are provided. The lubricating fluid is present in the composition from about 0.5% to 50% by weight, and is initially substantially homogeneously dispersed in the elastomer. The fluid can be integrated into the elastomer by a solvent infusion method. In another aspect an internally lubricated thermoplastic septum, having an appropriate hardness for resealability with multiple penetrations, is provided.Type: GrantFiled: June 7, 1995Date of Patent: June 17, 1997Assignee: COBE Laboratories, Inc.Inventors: Hubert S. Smith, III, James M. Brugger, Helmut W. Frey
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Patent number: 5624789Abstract: 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 2, 1995Date of Patent: April 29, 1997Assignee: Hoechst Celanese CorporationInventors: M. Dalil Rahman, Dana L. Durham
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Patent number: 5594088Abstract: One aspect of the present invention relates to a process for preparing plastic lenses having a high-refractive index comprising forming a mixture containing one or more polyisocyanate compounds; one or more active hydrogen compounds selected from the group consisting of a polyol compound having no sulfur atom, a polyol compound having at least one sulfur atom, and a polythiol compound having at least one sulfur atom in addition to the sulfur atom contained in mercapto group and at least one internal releasing agent and then casting and polymerizing the mixture.Type: GrantFiled: June 7, 1995Date of Patent: January 14, 1997Assignee: Mitsui Toatsu Chemicals, Inc.Inventors: Teruyuki Nagata, Koju Okazaki, Tohru Miura, Nobuyuki Kajimoto, Yoshinobu Kanemura, Katsuyoshi Sasagawa, Masao Imai
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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: 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: RE37022Abstract: 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: March 10, 1998Date of Patent: January 16, 2001Assignees: 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