Fluorine-containing Monomer Patents (Class 524/520)
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Patent number: 6528574Abstract: This invention relates to an aqueous dispersion of (a) from 0.5 to 99.5 weight percent of a fluoropolymer having an average particle size of from 0.01 to 30 microns; and (b) from 0.5 to 99.5 weight percent of an ethylene copolymer which comprises at least 50% by weight ethylene, 1-35% by weight of an acid-containing unsaturated mono-carboxylic acid, and optionally 0-49% by weight of a moiety selected from at least one of alkyl acrylate, alkyl methacrylate, vinyl ether, carbon monoxide and sulfur dioxide, and further wherein the acid groups are neutralized from 0-100% by a metal ion or other cations, the weight percents being based on the total amounts of (a) and (b) only. The invention also relates to a coprecipate of this aqueous dispersion and a dry powder made by drying the aqueous dispersion or coprecipitate.Type: GrantFiled: March 11, 1999Date of Patent: March 4, 2003Assignee: E. I. du Pont de Nemours and CompanyInventors: Daniel N. Levy, Eleni Karayianni
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Publication number: 20030040568Abstract: A water repellent and oil resistant composition capable of imparting excellent water repellency and oil resistance to paper even under a condition of drying at a low temperature for a short time, is provided.Type: ApplicationFiled: June 10, 2002Publication date: February 27, 2003Applicant: ASAHI GLASS COMPANY LIMITEDInventors: Shoji Furuta, Ryuji Seki, Hiroshi Funaki
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Patent number: 6518352Abstract: Mixtures of fluoropolymer dispersion, wherein: a) a dispersion is formed by TFE (co)polymers with average particle sizes in the range 180-400 nm; b) another dispersion selected from: 1) (co)polymer dispersion of TFE; 2) thermoplastic copolymers of TFE; the average particle sizes of dispersion b) range from 20 to 60 nm; the ratio between the particle sizes of dispersion b) compared with those of dispersion a) is lower than 0.3.Type: GrantFiled: June 30, 1999Date of Patent: February 11, 2003Assignee: Ausimont S.p.A.Inventors: Mario Visca, Daria Lenti, Marco Malvasi, Enrico Marchese
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Patent number: 6515066Abstract: An electrical circuit board fluoropolymer substrate and method of manufacture thereof, comprising a fluoropolymer matrix that includes a mixture of a granular first fluoropolymer resin and a dispersion second fluoropolymer resin. Preferably, the first and second fluoropolymer is polytetrafluoroethylene (PTFE). This mixture is suitable for forming unfilled or filled casting compositions to form thick films, or for dip-coating glass webs.Type: GrantFiled: March 1, 2001Date of Patent: February 4, 2003Assignee: World Properties, Inc.Inventors: David A. Allen, Brett W. Kilhenny, Allen F. Horn, III
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Patent number: 6500910Abstract: A refractive index distribution type light transmitting device comprising a non-crystalline polymer (a) and a metal chelate compound (b) having a difference in refractive index of at least 0.001 as compared with the non-crystalline polymer (a) and having a molecular weight of at least 400, wherein the metal chelate compound (b) is distributed in the non-crystalline polymer (a) with a concentration gradient in a specific direction.Type: GrantFiled: July 21, 2000Date of Patent: December 31, 2002Assignees: Asahi Glass Company, LimitedInventors: Yasuhiro Koike, Norihide Sugiyama
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Patent number: 6500880Abstract: The ink set of this invention comprises at least two inks, one of which contains a pH sensitive polymer and pigment colorant with dispersant. A second ink is provided which comprises incompatible inorganic or organic salts or has an appropriate pH. The polymer precipitates onto a medium upon contact with the second ink, thereby providing improved bleed control.Type: GrantFiled: October 26, 2000Date of Patent: December 31, 2002Assignee: Hewlett-Packard ComapnyInventor: Dennis P. Parazak
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Patent number: 6495624Abstract: Hydrophobic coating compositions are provided as are processes to coat articles with the compositions. Extremely hydrophobic coatings are provided by the compositions. Durable, weatherable and scratch-resistant coatings are provided by compositions comprising a trifluoromethyl-containing component and a hardenable material. Weatherable coatings are also provided by compositions comprising a mobile non-volatile fluorinated component and a hardenable material. Processes are also provided for forming hydrophobic coatings on articles.Type: GrantFiled: March 30, 2001Date of Patent: December 17, 2002Assignee: Cytonix CorporationInventor: James F. Brown
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Patent number: 6479578Abstract: A resin composition which gives a molded article having both of excellent mechanical properties and abrasion resistance with maintaining excellent thermal resistance, chemical resistance, surface characteristics (non-sticking property, low friction property), electric insulating property, etc. of a fluorine-containing polymer; a molded article obtained from the resin composition; and a method for producing the molded article are provided. The resin composition comprises: (A-1) a fluorine-containing ethylenic polymer prepared by copolymerizing at least one of fluorine-containing monomers having any one of hydroxyl, carboxyl, a carboxylate salt group, a carboxylate ester group or epoxy in an amount of 0.05 to 30% by mole on the basis of the total amount of monomers, and (B-1) an inorganic filler or a non-meltable organic filler, wherein said resin composition comprises 1 to 99.5% by weight of the component (A-1) and 0.5 to 99% by weight of the component (B-1).Type: GrantFiled: March 5, 2001Date of Patent: November 12, 2002Assignee: Daikin Industries, Ltd.Inventors: Takayuki Araki, Masahiro Kumegawa, Tsuyoshi Miyamori, Masami Kato, Masaji Komori, Taketo Kato, Tetsuo Shimizu
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Publication number: 20020165310Abstract: A polymeric composition includes a first polymeric material, for example, an adhesive material, and a second polymeric material disposed as a plurality of elongated structures within the first polymeric material. Each elongated structure has a major axis and the major axes are substantially aligned. The first polymeric material has an index of refraction that differs by at least 0.01 from an index of refraction of the second polymeric material. In some instances, a pressure sensitive adhesive material is selected as the first polymeric material. The orientation of the elongated structures and the difference in indices of refraction results in the polymeric composition scattering light asymmetrically. The polymeric composition is optionally disposed on a substrate and can be used, for example, to extract light from a light guide or to asymmetrically alter the viewing angle of a display.Type: ApplicationFiled: January 17, 2001Publication date: November 7, 2002Applicant: 3M Innovative Properties CompanyInventors: Zhiming Zhou, Jiaying Ma, Robert S. Moshrefzadeh, Albert I. Everaerts
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Publication number: 20020165303Abstract: A durable water repellent agent comprising a repellent and a fluorine-containing resin, wherein the repellent comprises at least one member selected from the group consisting of a perfluoroalkyl group-containing substance (I), a fluorine-containing surfactant (II), a fluorine-containing oil (III), a fluorosilicone oil (IV) and a silicone oil (V), the solid content weight ratio between said repellent and said fluorine-containing resin being (repellent):(fluorine-containing resin)=50:50 to 99:1.Type: ApplicationFiled: May 2, 2002Publication date: November 7, 2002Inventors: Susumu Wada, Kayoko Honda, Keiko Kunimasa, Katsuhiko Imoto
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Patent number: 6469072Abstract: A method for dispersing solid forms of additives in polymers involves adding dispersions or solutions of additive(s) to a solution of polymer in a tubular mixer (preferably in the presence of a stationary mixer). The mixer leads to a steam precipitation step wherein all fluid ingredients in the mixture are volatilized leaving the solid additive and resin in the desired ratio. This results in a uniform dispersion of the additives in the polymer matrix. As a result of the high dispersion, physical properties of a thermoplastic resin, to which the polymer matrix has been added are preserved. In one illustration, PTFE as a drip inhibitor additive, is added to polycarbonate to obtain a highly dispersed PTFE concentrate of improved-drip-inhibition without loss of mechanical properties when added to a thermoplastic molding resin.Type: GrantFiled: September 1, 2000Date of Patent: October 22, 2002Assignee: General Electric CompanyInventors: Qamar S. Bhatia, Paul Buckley, Gary Davis, Robert L. Howe, Wie-Hin Pan, Elliott Shanklin
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Publication number: 20020143099Abstract: A durable water repellent agent comprising a repellent and a fluorine-containing resin, wherein the repellent comprises at least one member selected from the group consisting of a perfluoroalkyl group-containing substance (I), a fluorine-containing surfactant (II), a fluorine-containing oil (III), a fluorosilicone oil (IV) and a silicone oil (V), the solid content weight ratio between said repellent and said fluorine-containing resin being (repellent):(fluorine-containing resin)=50:50 to 99:1.Type: ApplicationFiled: March 15, 2002Publication date: October 3, 2002Inventors: Susumu Wada, Kayoko Honda, Keiko Kunimasa, Katsuhiko Imoto
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Patent number: 6447913Abstract: To provide a thermoplastic polyester resin composition which has a very good durability to alkaline solutions for a long period of time. That is, a thermoplastic polyester resin composition, wherein a thermoplastic polyester resin (A) is compounded with 1-25% by weight (in the total composition) of impact resistance rendering materials (B), 0.1-15% by weight (in the total composition) of a silicone compound and/or a fluorine compound (C), 1-50% by weight (in the total composition) of an inorganic filler (D), and 0.1-10% by weight of at least one polyfunctional compound (E) selected from the group consisting of an epoxy compound, an isocyanate compound and a carboxylic acid dianhydride. A molded article of the present invention has anti-stress properties even in a weld part thereof.Type: GrantFiled: January 25, 2001Date of Patent: September 10, 2002Assignees: Polyplastics Co., LTD, Denso CorporationInventors: Kazufumi Watanabe, Takayuki Ishikawa, Toru Katsumata, Tetsuya Hirose, Hiroyuki Wakabayashi
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Patent number: 6448328Abstract: The present invention relates to stable aqueous dispersions comprising one or a number of hydroxylated fluorinated copolymers consisting of vinylidene fluoride and/or of trifluoroethylene, of tetrafluoroethylene, of one or a number of hydroxylated allylic monomers, and optionally of one or a number of monomers chosen from non-hydroxylated vinyl ethers. The stable aqueous dispersions optionally further comprise one or a number of acrylic copolymers consisting of methyl methacrylate and of one or a number of other alkyl (meth)acrylate(s), which are optionally functionalized or substituted. The stable aqueous dispersions are prepared by dispersion in water of an organic solution of the above copolymers and then by removal of the organic solvent. They can in particular be used as binders for aqueous-phase paints or varnishes.Type: GrantFiled: May 30, 1995Date of Patent: September 10, 2002Assignee: AtofinaInventors: Patrick Kappler, Jean Luc Perillon, Catherine Savary
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Publication number: 20020122890Abstract: The present invention is directed to polymeric treatment preparations for textiles and other fibrous substrates that impart water and oil repellency to fibers, yarns, textiles, or other fibrous substrates. More particularly, this invention comprises an aqueous solution, emulsion or suspension of (a) a fluorinated polymer that contains reactive groups that can complex with metal atoms that have a formal charge of 2 or greater, and (b) one or more metal atoms that have a formal charge of 2 or greater. The invention is further directed to the process for treating fibrous substrates with textile preparations in one step that provide water/soil repellency that is durable to repeated cleanings and to abrasion. This invention is further directed to the yarns, fibers, fabrics, textiles, webs, finished goods, or nonwovens (encompassed herein under the terms “textiles” and “fibrous substrates”) treated with the textile-reactive water- and soil-resistant preparation of the invention.Type: ApplicationFiled: March 6, 2002Publication date: September 5, 2002Applicant: Nano-Tex, LLCInventors: Matthew R. Linford, David S. Soane, David A. Offord
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Patent number: 6417280Abstract: A blended solid composition is provided containing a fibrillatable microparticulate PTFE polymer in an unfibrillated state and at least one elastomeric and/or fluoroplastic component. The composition is useful in making microfiber-reinforced solid compositions and articles produced therefrom.Type: GrantFiled: April 6, 2001Date of Patent: July 9, 2002Assignee: Chemfab CorporationInventors: John A. Effenberger, Christopher M. Comeaux, Lawrence D. David, Timothy P. Pollock, Katherine M. Sahlin, Laura A. Socha, Richard L. Stone, John W. Verbicky
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Patent number: 6395821Abstract: The invention relates to a water dispersion type water and oil repellent composition which satisfies both repeated washing durability of water and oil repellency and durability of hydrostatic pressure resistance. A water dispersion type water and oil repellent composition comprising (A) a fluorine-containing copolymer having hydroxy groups, (B) a fluorine-containing copolymer having epoxy groups, (C) a compound having a blocked isocyanate group and having no carbon-carbon unsaturated bond and (D) an amino resin, as effective components.Type: GrantFiled: November 29, 2000Date of Patent: May 28, 2002Assignee: Asahi Glass Company, LimitedInventors: Toyomichi Shimada, Takashige Maekawa
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Patent number: 6365658Abstract: A polymer composition comprising, based on the total weight of A), B), C) and D), A) from about 10 to 89.99 percent of a substantially random interpolymer comprising in polymerized form i) from about 35 to about 89.5 mole percent of one or more &agr;-olefin monomers and ii) from about 65 to about 10.5 mole percent of one or more vinyl or vinylidene aromatic monomers and/or one or more sterically hindered aliphatic or cycloaliphatic vinyl or vinylidene monomers, and optionally iii) other polymerizable ethylenically unsaturated monomer(s); B) from about 10 to about 75 percent of one or more polyolefins selected from the group consisting of I) propylene polymers and II) high density polyethylenes; and C) from 0.01 to about 10 percent of a non-ionic lubricant; and D) from 0 to about 60 percent of a substantially random interpolymer comprising in polymerized form i) from about 50 to about 99.5 mole percent of one or more &agr;-olefin monomers and ii) from about 50 to about 0.Type: GrantFiled: August 12, 1999Date of Patent: April 2, 2002Assignee: The Dow Chemical CompanyInventors: Jerker B. L. Kjellqvist, Brian W. Walther, Wenbin Liang, Roland Karlsson
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Patent number: 6362271Abstract: A weather resistant coating composition comprising a miscible polymer blend of highly crystalline polyvinylidene fluoride polymer and polyalkyl methacrylate, such as PVDF and PMMA. The miscible blend comprises from about 50 weight percent to about 90 weight percent polymer comprising polyvinylidene fluoride and from about 10 weight percent to about 50 weight percent polyalkyl methacrylate. The polyalkyl methacrylate having a molecular weight within the range of about 25,000 grams per mole to about 200,000 grams per mole. The crystallinity of the polyvinylidene fluoride polymer is about 20% to about 70%. The weather resistant coating has excellent and unexpected physical characteristics, including solvent resistance and gloss retention.Type: GrantFiled: August 27, 1999Date of Patent: March 26, 2002Assignee: Ausimont USA, Inc.Inventors: Shiow-Ching Lin, Craig Kamsler, Karol Argasinski
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Patent number: 6348258Abstract: A breathable film having improved processing properties and reduced cost includes a breathable film-forming layer composition including a matrix polymer, a particulate organic filler, and a compatibilizer. The particulate organic filler is incompatible with the matrix polymer and tends to agglomerate when mixed with the matrix polymer alone. The compatibilizer achieves thermodynamic equilibrium between the matrix polymer and filler within a defined filler particle size range suitable for producing stretched breathable film. The film processes more easily than breathable films containing inorganic fillers, and is less expensive to manufacture.Type: GrantFiled: March 12, 1999Date of Patent: February 19, 2002Assignee: Kimberly-Clark Worldwide, Inc.Inventors: Vasily Aramovich Topolkaraev, Kevin Matthew Harrington, Glynis Allicia Walton, Sandy Chi-Ching Ying, Kevin George Hetzler
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Publication number: 20020004542Abstract: Disclosed is a monovinylidene aromatic copolymer composition comprising a combination of monovinylidene aromatic copolymers, a flame retardant, an optional flame retardant synergist and a drip suppressant, wherein the combination of monovinylidene aromatic copolymers comprise a mass polymerized, rubber-modified monovinylidene aromatic copolymer and an emulsion polymerized, rubber-modified monovinylidene aromatic copolymer. Said compositions have a good balance of physical properties and are rated V-2, V-1, V-0 and/or 5V in the Underwriter's Laboratories Standard 94 flammability test.Type: ApplicationFiled: February 5, 2001Publication date: January 10, 2002Inventor: Samuel A. Ogoe
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Patent number: 6329042Abstract: A fluororesin coating composition comprising a dispersing medium and fluororesin particles dispersed therein, the dispersing medium mainly comprising a surfactant, and a coated article obtained using the coating composition.Type: GrantFiled: March 24, 1999Date of Patent: December 11, 2001Assignee: Sumitomo Electric Industries, Ltd.Inventors: Katsuya Yamada, Nobutaka Matsushita, Hideki Kashihara, Shigeyoshi Ohwaki, Tohru Kashiwagi, Makoto Nakabayashi, Masahiro Miyamoto
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Patent number: 6319973Abstract: Solvent-free applicable curable coating material containing as binder inorganic polymers and/or organic polymers, cross-linkers and sliding aids.Type: GrantFiled: July 22, 1999Date of Patent: November 20, 2001Assignee: Dana CorporationInventors: Markus Lemm, Kai Lemke, Dieter Grafl
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Patent number: 6310142Abstract: Fluoropolymers comprising a fluoroelastomer matrix incorporating therein particles of a semicrystalline fluoropolymer containing iodine and/or bromine and formed of tetrafluoroethylene (TFE) homopolymers or copolymers wherein the average particle sizes of the semicrystalline fluoropolymer latex range from 10 to 100 nm.Type: GrantFiled: February 23, 2000Date of Patent: October 30, 2001Assignee: Ausimont S.P.A.Inventors: Marco Apostolo, Margherita Albano, Anna Staccione
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Patent number: 6303686Abstract: The resin composition of the present invention comprises (a) a fluorine-free resin, (b) a fluorine-containing resin, and (c) a polyfluoroalkyl group-containing polymer, has excellent impact strength, and repels a flux.Type: GrantFiled: May 19, 1999Date of Patent: October 16, 2001Assignee: Daikin Industries Ltd.Inventors: Takahiro Kitahara, Fumihiko Yamaguchi, Yoshitaka Honda
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Patent number: 6300390Abstract: The present invention provides a resin-based dental restorative that exhibits low volumetric shrinkage, high filler loading and the high strength required for load bearing restorations, yet maintains a glossy appearance, even after substantial wear. To this end, a dispersant is mixed with a methacrylate resin and a structural filler having a mean particle size between about 0.05 &mgr;m and about 0.50 &mgr;m. The composite is useful in stress bearing restorations and in cosmetic restorations. The structural filler used is typically ground to a mean particle size of less than 0.5 &mgr;m and also includes a microfill having a mean particle size less than 0.05 &mgr;m to improve handling and mechanical characteristics. The preferred dental composites maintain their surface finish even after substantial use and also have the strength properties of hybrid composite resins.Type: GrantFiled: May 6, 1999Date of Patent: October 9, 2001Assignee: Kerr CorporationInventor: Christos Angeletakis
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Patent number: 6271286Abstract: The present invention provides an erasable colored pencil lead composition comprising a colorant, one or more binder resins, a fibrillatable or fibrillated material, and a filler. The colored pencil lead of the present invention produces marks on paper, which are easily erased by ordinary pencil eraser. The mark made using the composition has a cohesive nature that assists in the removal from paper in sheet or film like sections by the use of an ordinary eraser without smearing or leaving a residue. In a preferred embodiment, the composition is free or substantially free of low melting waxes or wax like materials. Examples of suitable binder resins include high density polyethylene, low density polyethylene, polypropylene, and high melting waxes. Examples of fibrillated or fibrillatable materials include fibrillatable or fibrillated polytetrafluoroethylene and ethylene-vinyl acetate copolymer. The colored pencil lead composition may further include a lubricant.Type: GrantFiled: June 22, 1999Date of Patent: August 7, 2001Assignee: Binney & Smith Inc.Inventors: Jacob Leidner, David Hacker
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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: 6262143Abstract: The present invention provides an erasable colored pencil lead composition comprising a colorant, one or more binder resins, a fibrillatable or fibrillated material, and a filler. The colored pencil lead of the present invention produces marks on paper which are easily erased by ordinary pencil eraser. The mark made using the composition has a cohesive nature which assists in the removal from paper in sheet or film like sections by the use of an ordinary eraser without smearing or leaving a residue. In a preferred embodiment, the composition is free or substantially free of low melting waxes or wax like materials. Examples of suitable binder resins include high density polyethylene, low density polyethylene, polypropylene, and high melting waxes. Examples of fibrillated or fibrillatable materials include fibrillatable or fibrillated polytetrafluoroethylene and ethylene-vinyl acetate copolymer. The colored pencil lead composition may further include a lubricant.Type: GrantFiled: November 20, 1998Date of Patent: July 17, 2001Assignee: Binney & Smith Inc.Inventors: Jacob Leidner, David Hacker
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Patent number: 6255380Abstract: A resin composition which exhibits good sealability while keeping creep deformation to a minimum when brought into sliding contact with a mating member at a high contact pressure of over 10 MPa, and which will not damage a mating member made from an aluminum alloy while sliding in contact with lubricating oil. The resin composition is a pressure-resistant, sliding tetrafluoroethylene resin composition containing 100 parts by volume of a modified tetrafluoroethylene resin in the form of a copolymer of tetrafluoroethylene and partially modified tetrafluoroethylene, 5-40 parts by volume of carbon fiber, and 2-30 parts by volume of calcium sulfate whiskers having a Mohs hardness of 4 or less, and having, at 100° C., a maximum deformation rate in 24 hours, of 15% or less. A seal device to be brought into slide contact with an aluminum metal is molded from such a pressure-resistant, sliding tetrafluoroethylene resin composition.Type: GrantFiled: June 29, 1998Date of Patent: July 3, 2001Assignee: NTN CorporationInventors: Yoshio Oki, Takuya Ishii, Kenji Ito, Kohei Yoshino
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Patent number: 6239223Abstract: A blended solid composition is provided containing a fibrillatable microparticulate PTFE polymer in an unfibrillated state and at least one elastomeric and/or fluoroplastic component. The composition is useful in making microfiber-reinforced solid compositions and articles produced therefrom.Type: GrantFiled: June 12, 1998Date of Patent: May 29, 2001Assignee: Chemfab CorporationInventors: John A. Effenberger, Christopher M. Comeaux, Lawrence D. David, Timothy P. Pollock, Katherine M. Sahlin, Laura A. Socha, Richard L. Stone, John W. Verbicky
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Patent number: 6232372Abstract: A composition comprising a plurality of multicomponent particles, one component of each of the particles being melt fabricable fluoropolymer and another component of each of the particles being a high temperature resistant non-dispersed polymer binder. The components of the particles are bound together by mechanical engagement, or alternatively, by chemical interaction. The composition is preferably in the form of a free-flowing powder which is not subject to segregation of component resins during shipping or processing.Type: GrantFiled: March 16, 1999Date of Patent: May 15, 2001Assignee: E. I. du Pont de Nemours and CompanyInventors: Paul Douglas Brothers, Dewey Lynn Kerbow, Laurence W. McKeen
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Patent number: 6232386Abstract: Oxyhalopolymer composites which include an oxyhalopolymer having free volume therein and an inorganic or organic material disposed in the free volume of the oxyhalopolymer are disclosed. Also disclosed is a surface-oxyhalogenated non-halopolymer composite. The composite includes a surface-oxyhalogenated non-halopolymer having free volume therein and an inorganic or organic material disposed in the free volume of the surface-oxyhalogenated non-halopolymer. Methods for making and using these composites are also described.Type: GrantFiled: December 23, 1997Date of Patent: May 15, 2001Assignee: Integument Technologies, Inc.Inventors: Terrence G. Vargo, Timothy S. Koloski
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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: 6225403Abstract: The present invention relates to a method and composition for treating textile fibers or substrates, to thereby impart oil, water and soil repellency at substantially reduced add on levels of fluorine containing resins based on weight of the textile fiber or substrate so treated.Type: GrantFiled: February 3, 1999Date of Patent: May 1, 2001Inventor: Barry R. Knowlton
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Patent number: 6221429Abstract: Pigmented powder coating products based on low melting point fluorine-based terpolymers, preferably on those made from a majority of vinylidene fluoride copolymerized with tetrafluoroethylene and hexafluoropropene, are capable of providing coatings with controllable gloss properties. The process for preparing coatings from the powders is essentially characterized by the selection of the temperature at which the desired gloss can be obtained, from low to high, without degradation of the mechanical properties.Type: GrantFiled: November 20, 1998Date of Patent: April 24, 2001Assignee: Fina Research, S.A.Inventors: Edwin Verwey, Ludwig Karl Rijkse, Michel Gillard
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Publication number: 20010000181Abstract: The present invention is directed to a thermoplastic additive containing aluminum stearate and polyvinylidine fluoride which when added to thermoplastics such as polyethylene inhibits and reduces permeation of fluids stored within containers composed of the thermoplastic. The invention has been proven effective in reducing the permeation of hydrocarbon based materials.Type: ApplicationFiled: November 29, 2000Publication date: April 5, 2001Inventor: Ronald T. Robichaud
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Patent number: 6201056Abstract: Coatings prepared from water-based compositions comprise an aqueous solution, emulsion, or dispersion of (a) a water-soluble or water-dispersible polymer or oligomer having at least one anionic moiety which is capable of reacting with an oxazoline or oxazine moiety; (b) a water-soluble or water-dispersible polymer or oligomer having at least one oxazoline or oxazine moiety; and (c) colloidal silica; at least one of the components (a) and (b) further comprising at least one fluoroaliphatic moiety. The coatings have low surface energy and high abrasion resistance.Type: GrantFiled: November 5, 1999Date of Patent: March 13, 2001Assignee: 3M Innovative Properties CompanyInventor: Dong-Wei Zhu
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Patent number: 6197852Abstract: Improved carbon black concentrates and extrusion compositions produced therefrom are provided. The extrusion compositions are resistant to thermo-oxidative degradation and have significantly improved carbon black dispersion rendering them useful for wire and cable and other applications. The concentrates are mixtures of a mercaptobenzimidazole compound, carbon black and polyolefin resin.Type: GrantFiled: February 28, 2000Date of Patent: March 6, 2001Assignee: Equistar Chemicals, LPInventor: Chun D. Lee
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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: 6187851Abstract: An aqueous composition useful for the surface treatment of materials, which includes: (a) an inorganic silicate or colloidal silica present in an amount from 2 to 95% by weight based on the weight of dry product; and (b) a fluoroelastomer based on vinylidene fluoride (VDF) present in an amount from 5 to 98% by weight based on the weight of dry product.Type: GrantFiled: June 24, 1999Date of Patent: February 13, 2001Assignee: Ausimont S.p.A.Inventors: Stefano Netti, Camillo Di Carlo
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Patent number: 6160038Abstract: A method for dispersing solid forms of additives in polymers involves adding dispersions or solutions of additive(s) to a solution of polymer in a tubular mixer (preferably in the presence of a stationary mixer). The mixer leads to a steam precipitation step wherein all fluid ingredients in the mixture are volatilized leaving the solid additive and resin in the desired ratio. This results in a uniform dispersion of the additives in the polymer matrix. As a result of the high dispersion, physical properties of a thermoplastic resin, to which the polymer matrix has been added are preserved. In one illustration, PTFE as a drip inhibitor additive, is added to polycarbonate to obtain a highly dispersed PTFE concentrate of improved drip-inhibition without loss of mechanical properties when added to a thermoplastic molding resin.Type: GrantFiled: September 27, 1999Date of Patent: December 12, 2000Assignee: General Electric CompanyInventors: Qamar S. Bhatia, Paul Buckley, Gary Davis, Robert L. Howe, Wie-Hin Pan, Elliott Shanklin
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Patent number: 6153681Abstract: Compositions which act as thermoplastic elastomers are disclosed which have an elastomeric polymer portion and a crystalline polymer portion. Also disclosed is the manufacture of thermoplastic elastomers from tetrafluoroethylene, and selected trifluorovinyl alkyl ethers (and optionally other monomers) by using a free radical polymerization in aqueous medium to produce an elastomeric copolymer of tetrafluoroethylene and one or more selected trifluorovinyl alkyl ethers, and thereafter using a free radical polymerization to form a fluorinated crystalline polymer portion. The fluorinated thermoplastic elastomer has excellent physical properties and may be used to make molding such as gaskets and seals.Type: GrantFiled: July 8, 1998Date of Patent: November 28, 2000Assignee: E. I. du Pont de Nemours and CompanyInventor: Paul G. Bekiarian
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Patent number: 6140410Abstract: Fluoropolymer compositions containing melt-fabricable functionalized fluoropolymer and high temperature resistant thermoplastic adhesion promoter have enhanced adhesion to metal at low concentrations of high temperature resistant thermoplastic.Type: GrantFiled: July 13, 1998Date of Patent: October 31, 2000Assignee: E. I. du Pont de Nemours and CompanyInventor: Robert Joseph Kolouch
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Patent number: 6140408Abstract: This invention relates to novel room temperature coalescable aqueous fluoropolymer dispersions and a process for their manufacture. These dispersions may be used in a variety of applications including high temperature thermoplastic coatings, polishes, room temperature formable paints and coatings, extrudable or injection moldable resins, and adhesives.Type: GrantFiled: December 9, 1998Date of Patent: October 31, 2000Inventors: Thomas F. McCarthy, Yan Chen, Peter Petersen
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Patent number: 6130298Abstract: A stainproof treatment agent containing:(A) a fluoroalkyl group-containing copolymer having(I) a repeating unit derived from a monomer having a fluoroalkyl group,(II) a repeating unit derived from a monomer containing no fluorine,(III) a repeating unit derived from vinyl chloride, and(IV) a repeating unit derived from a crosslinking monomer; and(B) an acrylic copolymer containing no fluorine, has durability so that sufficient water- and oil-repellency as well as stainproof properties are maintained before and after cleaning.Type: GrantFiled: November 16, 1998Date of Patent: October 10, 2000Assignee: Daikin Industries Ltd.Inventors: Masayuki Yamana, Ikuo Yamamoto, Mitsuhiro Usugaya, Taro Sano
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Patent number: 6127450Abstract: The present invention provides a resin-based dental restorative that exhibits high condensability, low volumetric shrinkage and low shrinkage stress. To this end, one or more of a rheological modifier, dispersant and fluorocopolymer are mixed with a methacrylate resin and a fine mineral filler in amounts effective to improve the condensability of the resulting composite to achieve amalgam-like condensation, to reduce the volumetric shrinkage to less than about 2% during polymerization, to improve wear resistance, and to provide a composite with generally improved physical properties.Type: GrantFiled: June 9, 1998Date of Patent: October 3, 2000Assignee: Kerr CorporationInventor: Christos Angeletakis
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Patent number: 6117542Abstract: A flame retardant resin composition comprising a thermoplastic resin/flame retardant mixture having fluororesin fibrils dispersed therein, wherein, when a breakage-exposed surface of a tensile force-broken piece of a test sample prepared from the flame retardant composition by injection molding so as to be used in a flame retardancy test by the Vertical Burning Method described in UL-Subject 94 is examined by means of a SEM with respect to a predetermined area of 7 .mu.m.times.7 .mu.m wherein the fibrils are dispersed in the entire region of the predetermined area, the dispersed fibrils exhibit a dispersion morphology in which the fibrils have a diameter of 0.Type: GrantFiled: February 17, 1998Date of Patent: September 12, 2000Assignee: Asahi Kasei Kogyo Kabushiki KaishaInventors: Nobutsugu Nanba, Hideki Nasu
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Patent number: 6103788Abstract: The present invention relates to a curable resin composition for use in water-based coating materials which includes as essential components an emulsion polymer (A) containing tertiary amino groups obtained by carrying out emulsion polymerization of a vinyl monomer containing a tertiary amino group with another copolymerizable vinyl monomer in a water-based medium, and a compound (B) containing, at least, an epoxy group and a hydrolyzable silyl group, with this composition preferably also including a water-based compound (C) obtained by adding a neutralizing agent to a vinyl polymer (I) containing acidic groups and/or tertiary amino groups so as to neutralize at least 10% of the acidic groups and/or the tertiary amino groups, and then dispersing or dissolving in water, and/or a compound (D), which is not included in compound (B), and contains hydrolyzable silyl group and/or a silanol group.Type: GrantFiled: July 22, 1997Date of Patent: August 15, 2000Assignee: Dainippon Ink and Chemicals, Inc.Inventors: Nobuo Harui, Akifumi Yamamoto, Hidehisa Nakamura
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Patent number: 6100324Abstract: Disclosed are ionomers comprising functionalized polyolefins having fluoroalkyl sulfonate pendant groups and ionically conductive compositions formed therefrom by the addition of solvents.Type: GrantFiled: April 16, 1998Date of Patent: August 8, 2000Assignee: E. I. du Pont de Nemours and CompanyInventors: Susan Kuharcik Choi, Christopher Marc Doyle, Mark Gerrit Roelofs, Lin Wang, Zhen-Yu Yang