Vulcanized Or Crosslinked In Presence Of Chemical Treating Agent Patents (Class 525/326.3)
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Patent number: 12173099Abstract: Provided herein is a curable fluoroelastomer composition including at least one fluoroelastomer comprising copolymerized units of a nitrile group-containing cure site monomer; a cure system comprising at least two different dihydrazides; and optionally at least one additive. Further provided are pre-forms comprising the curable composition, methods of curing the fluoroelastomer composition, compositions that are the product of curing the curable fluoroelastomer composition, and articles comprising the cured fluoroelastomer composition.Type: GrantFiled: May 7, 2020Date of Patent: December 24, 2024Assignee: DUPONT POLYMERS, INC.Inventors: Christopher J. Bish, Christian Daniel, Daniel Robert Massa
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Patent number: 12103462Abstract: An occupant monitoring system for a vehicle comprises: a first light source to generate first infrared (IR) light illuminating at least part of the body of an occupant of a vehicle, wherein the first light source is time modulated with a duty cycle; an IR reflective surface to reflect second IR light reflected from the body of the occupant; and a first IR camera to receive at least part of the second IR light reflected by the IR reflective surface, wherein the first IR camera is time modulated with the duty cycle of the first light source.Type: GrantFiled: December 21, 2021Date of Patent: October 1, 2024Assignee: Atieva, Inc.Inventors: Lucas Jungmann, Hans-Christoph Eckstein, Mohannad Murad, Devan S. Shanker
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Patent number: 12054595Abstract: A method for improving physical properties of a separator in which is capable of increasing insulation, tensile strength and elongation. The separator also has improved physical properties through the above method. Particularly, the present invention is applied to a separator that has already manufactured. After forming a double bond in the separator that has already manufactured, crosslinking may be formed through the double bond or by adding a separate crosslinking initiator.Type: GrantFiled: April 13, 2019Date of Patent: August 6, 2024Assignee: LG ENERGY SOLUTION, LTD.Inventors: Young Bok Kim, Min Ji Kim, Kwan Woo Nam, Je An Lee
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Patent number: 11390726Abstract: The invention includes a method of bonding a perfluoroelastomer material to first surface that includes: (a) contacting a first surface with a bonding agent comprising a curable perfluoropolymer and a curing agent; (b) curing the bonding agent to form a perfluoroelastomer material that is bonded to the first surface. In the practice of such method, the bonding agent may be a solution prepared by dissolving the curable perfluoroelastomer and the curing agent in a solvent. In an embodiment of the invention, the perfluoroelastomer material formed in step (b) is a coating layer or, alternatively, the first surface is a surface of a perfluoroelastomer member and the perfluoroelastomer material formed is a perfluoroelastomer weld.Type: GrantFiled: March 9, 2021Date of Patent: July 19, 2022Assignee: Greene, Tweed Technologies, Inc.Inventors: Ronald R. Campbell, Christopher Corrado, Brian Alan Ux, Robert Anthony Rey, Gary Reichl, Carmin Quartapella
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Patent number: 11312850Abstract: A gasket material comprising a crosslinked fluororubber layer having a micro-hardness of 5 to 25 formed on a metal plate using a fluororubber composition comprising 30 to 70 parts by weight of carbon black having a CTAB specific surface area of 3 to 34 m2/g, and 5 to 15 parts by weight of hydrated amorphous silicon dioxide having a BET specific surface area of 35 to 220 m2/g, based on 100 parts by weight of fluororubber, wherein the total amount of carbon black and hydrated amorphous silicon dioxide is 80 parts by weight or less.Type: GrantFiled: November 22, 2018Date of Patent: April 26, 2022Assignee: NOK CORPORATIONInventors: Daiki Takekawa, Masahiro Yokoo
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Patent number: 11220588Abstract: The invention pertains to a (per)fluoroelastomer composition comprising at least one (per)fluoroelastomer comprising iodine and/or bromine atoms, at least one polyunsaturated compound, at least one organic peroxide and at least one organic compound selected from the group consisting of (thio)urea compounds, cyclic addition products of ammonia or primary amine and aldehyde; (thio)carbamates.Type: GrantFiled: May 30, 2016Date of Patent: January 11, 2022Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Matteo Fantoni, Marco Avataneo, Stefano Bossolo
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Patent number: 11084910Abstract: Provided is a cross-linked rubber that can improve long-term sealing properties of a seal member in high-temperature and high-pressure environments. The cross-linked rubber is obtained through cross-linking of a cross-linkable rubber composition containing a fluororubber, carbon black, one or more carbon nanotubes, and an organic peroxide cross-linker, and has a 50% modulus of 5 MPa or more, a compression set (230° C., 500 hours) of 80% or less, and a rate of change of elongation at break between before and after a heat aging test (230° C., 72 hours) of not less than ?10% and not more than 10%.Type: GrantFiled: June 6, 2018Date of Patent: August 10, 2021Assignee: ZEON CORPORATIONInventors: Masaaki Komatsu, Anna Komatsu, Seisuke Ata, Kenji Hata, Shigeki Tomonoh
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Patent number: 11015096Abstract: Provided are a perfluoroelastomer composition containing a perfluoroelastomer, a peroxide crosslinking agent, a co-crosslinking agent that is a diolefin compound, and an organic pigment; and a sealing material containing a crosslinked product of the perfluoroelastomer composition.Type: GrantFiled: May 24, 2017Date of Patent: May 25, 2021Assignee: VALQUA, LTD.Inventors: Naoki Osumi, Kana Hirai
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Patent number: 10856069Abstract: A method of treating a wearable device to resist sebum, the method including providing a body having an elastic material having a polymeric backbone where a portion of the polymeric backbone is unsaturated and the body has an outer surface. The method further includes forming a crosslinked matrix within an outer layer of the body surrounding an inner layer of the body such that the outer layer has less affinity to sebum than the inner layer of the body.Type: GrantFiled: November 30, 2018Date of Patent: December 1, 2020Assignee: Bose CorporationInventors: Kai Gao, Shawn Prevoir
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Patent number: 10787531Abstract: To provide a fluorinated elastic copolymer capable of obtaining a crosslinked rubber which is excellent in tensile strength and has a low compression set under high temperature conditions; a method for producing such a fluorinated elastic copolymer; a crosslinked rubber; and a method for producing such a crosslinked rubber. A fluorinated elastic copolymer having structural units based, respectively, on monomers (a), (b) and (c), and further having iodine atoms. Monomer (a): at least one member selected from the group consisting of tetrafluoroethylene, hexafluoropropylene, vinylidene fluoride, chlorotrifluoroethylene and perfluoro(alkyl vinyl ether). Monomer (b): at least one member selected from the group consisting of compounds represented by formula (I): CR1R2?CR3—R4—CR5?CR6R7 (I) (wherein R1, R2, R3, R5, R6 and R7 are each independently a hydrogen atom, a fluorine atom or a methyl group; and R4 is a C1-10 perfluoroalkylene group which may have an etheric oxygen atom inserted between carbon atoms).Type: GrantFiled: January 26, 2018Date of Patent: September 29, 2020Assignee: AGC Inc.Inventors: Keisuke Yagi, Takehiro Kose, Hiroki Nagai, Satoko Yasuda
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Patent number: 10676607Abstract: Provided is a solution for forming a surface protective resin member, containing: a fluorine-containing acrylic resin having a hydroxyl value of 40 to 280; a fluorine-free acrylic resin having a hydroxyl value of 40 to 280; and a polyether polyol or a polyester polyol.Type: GrantFiled: October 17, 2018Date of Patent: June 9, 2020Assignee: FUJI XEROX CO., LTD.Inventors: Hisae Yoshizawa, Yoshihiro Inaba, Fumiaki Mera, Takako Kobayashi
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Patent number: 10533064Abstract: The invention pertains to peroxide-curable fluoroelastomers for the oil and gas industry, including explosive decompression, and which can be easily processed to yield cured parts in standard machineries at reasonable throughput rates, said fluoroelastomers comprising: recurring units derived from vinylidene fluoride (VDF); recurring units derived from hexafluoropropylene (HFP); recurring units derived from at least one bis-olefin [bis-olefin (OF)] having general formula: wherein R1, R2, R3, R4, R5 and R6, equal or different from each other, are H, a halogen, or a C1-C5 optionally halogenated group, possibly comprising one or more oxygen group; Z is a linear or branched C1-C18 optionally halogenated alkylene or cycloalkylene radical, optionally containing oxygen atoms, or a (per)fluoropolyoxyalkylene radical; and iodine or bromine cure-sites; said fluoroelastomers further possessing a Mooney viscosity (ML) of at least 85 MU (1+10@121° C.), when measured according to ASTM D1646.Type: GrantFiled: October 7, 2011Date of Patent: January 14, 2020Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Marco Apostolo, Liubov Chernysheva
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Patent number: 10394144Abstract: An electrophotographic photosensitive body includes at least a photosensitive layer and a protective layer sequentially laminated on an electroconductive support, wherein the protective layer has a domain containing perfluoropolyether.Type: GrantFiled: February 8, 2018Date of Patent: August 27, 2019Assignee: KONICA MINOLTA, INC.Inventors: Tomoko Sakimura, Toyoko Shibata, Masanori Yumita
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Patent number: 10323142Abstract: Described herein is a curable composition comprising: (a) a perfluoroelastomer gum having a carboxylic acid integrated absorbance ratio of at least 0.015; and (b) a compound comprising at least one oxazole moiety, and cured articles thereof.Type: GrantFiled: May 5, 2016Date of Patent: June 18, 2019Assignee: 3M Innovative Properties CompanyInventors: Tamon Aoki, Tatsuo Fukushi, Yuta Suzuki, Noriyuki Usami
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Patent number: 10087308Abstract: The present invention relates to the field of vulcanization of unsaturated polymers, in particular halogenated, and more particularly chlorinated, unsaturated polymers, such as, for example, polychloroprene, using as vulcanization agent a mixture of bis(2,5-dimercapto-1,3,4-thiadiazole) and at least one organic base. The present invention relates to the process for vulcanization of said polymers with said vulcanization mixture.Type: GrantFiled: September 21, 2016Date of Patent: October 2, 2018Assignee: MLPC INTERNATIONALInventors: Isabelle Yarzabal, Thierry Aubert, Pierre Lugez
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Patent number: 10030087Abstract: The invention pertains to a process for manufacturing a fluoroelastomer [fluoroelastomer (A)] having a heat of fusion of less than 5 J/g as measured by ASTM D-3418-08, said method comprising emulsion polymerizing vinylidene fluoride (VDF) in the presence of at least one additional fluorinated monomer, in an aqueous polymerization medium, said method comprising polymerizing VDF and said additional fluorinated monomer(s) in the presence of a redox radical initiator system comprising: —at least one organic oxidizing agent [agent (O)]; —at least one organic reducing agent [agent (R)]; wherein agent (O) is fed to said polymerization medium separately from agent (R), so that agent (O) comes in contact with agent (R) exclusively in said polymerization medium comprising VDF and optional additional monomer(s), to fluoroelastomers having low amount of chain defects and low amount of polar end groups, notably obtainable from said process, and to curable compositions therefrom.Type: GrantFiled: May 2, 2012Date of Patent: July 24, 2018Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.Inventors: Liubov Chernysheva, Bradley Lane Kent, Giovanni Comino, Valeriy Kapelyushko
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Patent number: 9976016Abstract: A fluororubber composition including a fluororubber having an iodine content of 10 to 90 mol % for the total mole of the polymer end groups and a carbon black (B), wherein a difference (?G?), represented by G?(1%)-G?(100%), is not lower than 120 kPa and not higher than 3,000 kPa, where G?(1%) denotes a shear modulus at a dynamic strain of 1% under an uncrosslinked state and G?(100%) denotes a shear modulus at a dynamic strain of 100% under an uncrosslinked state, and G?(1%) and G?(100%) are determined by a dynamic viscoelasticity test with a rubber process analyzer (RPA) in a condition that the measurement frequency is 1 Hz and the measurement temperature is 100° C.Type: GrantFiled: February 22, 2013Date of Patent: May 22, 2018Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke Ota, Shigeru Morita, Akinori Ueda, Yuu Kadowaki, Masanori Kitaichi, Michiko Doi, Kazuhiro Yamamura, Shoji Fukuoka, Mayuko Taeda
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Patent number: 9777796Abstract: The present invention relates to a friction transmission belt having a friction transmission part, in which the friction transmission part is formed of a rubber composition containing an ethylene-?-olefin elastomer, a mineral-based filler and a surfactant.Type: GrantFiled: March 7, 2013Date of Patent: October 3, 2017Assignee: Mitsuboshi Belting Ltd.Inventors: Yorifumi Hineno, Takaaki Kan
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Patent number: 9745398Abstract: A method of preparing a fluoroelastomer capable of being vulcanized by using peroxide, the method comprising: in the presence of an initiator and a chain transfer agent, conducting emulsion polymerization reaction on comonomers to obtain a fluoroelastomer. The preparation method utilizes alkyl iodide RIx as the chain transfer agent, and introduces the atom I into the molecular structure of the polymer during the reaction, the atom I acting as a crosslinking point during peroxide vulcanization. The fluoroelastomer obtained via the preparation method greatly improves the performance after being vulcanized; in addition, due to the low cost and extensive sources of alkyl iodide, the preparation method also simplifies the manufacturing process, reduces cost, and has wide application prospects.Type: GrantFiled: November 25, 2013Date of Patent: August 29, 2017Assignee: ZHONGHAO CHENGUANG RESEARCH INSTITUTE OF CHEMICAL INDUSTRY COMPANY LIMITEDInventors: Bo Zeng, Jianxin Zhang, Bin Li, Jun Lan, Jiayong Gao, Jing Bai
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Patent number: 9611383Abstract: Compositions comprising fluoroelastomers having copolymerized units of a cyano-containing cure site monomer are cured (i.e. crosslinked) with a fluoropolymer having pendant sulfonyl azide groups. The latter fluoropolymer comprises copolymerized units of a fluoroalkanesulfonyl azide of formula CF2?CF—(O)p—Rf—(CH2)n—SO2N3, wherein p=0 or 1; n=0-4; and Rf is a C1-C16 perfluoroalkyl or perfluoroalkoxy group. The crosslinks are tetrazole rings formed by the reaction of the pendant sulfonyl azide groups on the fluoropolymer with pendant cyano groups on the fluoroelastomer.Type: GrantFiled: November 24, 2014Date of Patent: April 4, 2017Assignee: E I DU PONT DE NEMOURS AND COMPANYInventor: Ming-Hong Hung
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Patent number: 9499678Abstract: A fluororubber composition which includes a fluororubber (A) and a carbon black (B). The fluororubber (A) is a vinylidene fluoride-based fluororubber including a structural unit (VdF unit) derived from vinylidene fluoride and a structural unit derived from at least one monomer selected from the group consisting of hexafluoropropylene (HFP), 2,3,3,3-tetrafluoro propylene, and perfluoro(alkyl vinyl ether) (PAVE). The molar ratio of the VdF unit to the structural unit derived from at least one monomer selected from the group consisting of HFP, 2,3,3,3-tetrafluoro propylene, and PAVE is 50/50 to 78/22. The fluororubber composition has a difference ?G? (G? (1%)-G? (100%)) of not lower than 120 kPa and not higher than 3,000 kPa, where G? (1%) denotes a modulus of shearing elasticity at a dynamic strain of 1%, G? (100%) denotes a modulus of shearing elasticity at a dynamic strain of 100%, and G? (1%) and G? (100%) are determined by a dynamic viscoelasticity test.Type: GrantFiled: February 22, 2013Date of Patent: November 22, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Daisuke Ota, Akinori Ueda, Yuu Kadowaki, Mayuko Taeda, Masanori Kitaichi, Kazuhiro Yamamura, Michiko Doi, Shoji Fukuoka
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Patent number: 9441101Abstract: Provided is a fluororubber composition which does not deteriorate workability during roll kneading, does not cause foaming during crosslinking and molding, and is capable of giving a crosslinked molded article which exhibits desired hardness and sealing property without using a reinforcing inorganic filler such as carbon black and silica. The fluororubber composition includes, relative to 100 parts by weight of a vinylidene fluoride-copolymerized, fluorine-containing elastomer copolymer having a glass transition temperature and a melting point, no reinforcing inorganic filler, 5 to 100 parts by weight of a PTFE filler, 0.5 to 10 parts by weight of a polyol crosslinking agent, 1 to 15 parts by weight of magnesium oxide, and 0.1 to 2 parts by weight of hydrotalcite. Preferably, 0.1 to 10 parts by weight of a quaternary onium salt crosslinking accelerator is further included.Type: GrantFiled: December 5, 2013Date of Patent: September 13, 2016Assignee: NOK CorporationInventor: Atsushi Yokota
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Patent number: 9273172Abstract: The present invention provides a method for producing a fluoroelastomer using an emulsifier which is inexpensive and hardly remains in product polymers. The present invention is related to a method for producing a fluoroelastomer, wherein vinylidene fluoride and at least one fluoroolefin monomer other than vinylidene fluoride are copolymerized in the manner of an emulsion polymerization in the presence of an emulsifier represented by C5F11COOM, wherein M represents H, NH4 or an alkali metal.Type: GrantFiled: July 7, 2008Date of Patent: March 1, 2016Assignee: DAIKIN INDUSTRIES, LTD.Inventors: Mitsuru Kishine, Masanori Kitaichi, Shigeru Morita, Yoshiki Tanaka, Daisuke Ota
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Patent number: 9200127Abstract: To provide a fluorinated elastomer composition which can improve, in production of a fluorinated foamed rubber by foaming and crosslinking a fluorinated elastomer using an organic peroxide as a crosslinking agent, the foamed state and physical properties of the fluorinated foamed rubber. A fluorinated elastomer composition which comprises 100 parts by mass of a fluorinated elastomer, from 0.1 to 20 parts by mass of a blowing agent and from 0.05 to 10 parts by mass of a crosslinking agent comprising a peroxide compound, and which contains no crosslinking aid or contains a crosslinking aid comprising a compound having at least two carbon-carbon double bond-containing groups in the same molecule, in a content of at most 0.3 part by mass, is foamed and crosslinked to produce a fluorinated foamed rubber.Type: GrantFiled: October 14, 2013Date of Patent: December 1, 2015Assignee: Asahi Glass Company, LimitedInventors: Makoto Honda, Hiroshi Funaki, Yasuhiko Matsuoka
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Publication number: 20150148493Abstract: Compositions comprising fluoroelastomers having copolymerized units of a cyano-containing cure site monomer are cured (i.e. crosslinked) with certain aromatic diazide curatives. The crosslinks are tetrazole rings formed by the reaction of the aromatic diazide with pendant cyano groups on the fluoroelastomer.Type: ApplicationFiled: November 20, 2014Publication date: May 28, 2015Inventor: Ming-Hong Hung
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Patent number: 9018306Abstract: There is provided a curable fluorine-containing polymer composition which is rapidly cured at relatively low temperature by hydrosilylation reaction to form a coating film having not only high hardness and flexibility but also water- and oil-repellency, thereby giving stain-proofing effect for a long period of time, especially maintaining property of removing and wiping-off stain.Type: GrantFiled: June 9, 2008Date of Patent: April 28, 2015Assignees: Dow Corning Corporation, Daikin Industries, Ltd.Inventors: Masayuki Hayashi, Eiji Kitaura, Peter Cheshire Hupfield, Katsuhiko Imoto, Masaru Nagato
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Patent number: 9010393Abstract: Tyre and rubber composition for tyre, based on at least one isoprene elastomer (for example natural rubber), an inorganic filler as reinforcing filler (for example silica) and a coupling system which provides the bonding between the said reinforcing inorganic filler and the isoprene elastomer, the said coupling system comprising, in combination: as first coupling agent, a silane sulphide compound; as second coupling agent, an at least bifunctional organosilicon compound (for example an organosilane or an organosiloxane) which can be grafted to the elastomer by means of an azodicarbonyl functional group (—CO—N?N—CO—).Type: GrantFiled: May 11, 2006Date of Patent: April 21, 2015Assignee: Michelin Recherche et Technique, S.A.Inventors: Jose Carlos Araujo Da Silva, Nathalie Binde, Pierre Robert, Sebastien Sterin, Anne Veyland
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Publication number: 20150099850Abstract: A quaternary copolymer, fluorine-containing elastomer having a copolymerization composition comprising: (A) 2.0 to 8.0 mol % of vinylidene fluoride, (B) 60.0 to 70.0 mol % of tetrafluoroethylene, (C) 35.0 to 25.0 mol % of perfluoro(lower alkyl vinyl ether) or perfluoro(lower alkoxy-lower alkyl vinyl ether), and (D) 0.2 to 3.0 mol % of a perfluoro unsaturated nitrile compound, and having a Mooney viscosity ML1+10(121° C.) of 65 to 110, as well as a vulcanizable fluorine-containing elastomer composition comprising said fluorine-containing elastomer and a bisamidoxime compound in an amount of 0.2 to 5 parts by weight based on 100 parts by weight of the fluorine-containing elastomer. A sealing material obtained by vulcanization-molding of the fluorine-containing elastomer has not only excellent compression set characteristics and plasma resistance, but also low adhesion to metal at a higher temperature, specifically 150° C.Type: ApplicationFiled: April 22, 2013Publication date: April 9, 2015Applicant: EAGLE INDUSTRY CO., LTD.Inventors: Akihiko Ikeda, Mitsuru Maeda, Masahi Kudo, Hideto Nameki, Kunihiko Mori
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Patent number: 8981009Abstract: The present invention provides a TFE/Pr type elastomer being excellent in not only amine resistance but also heat resistance and chemical resistance and having a small gel content, and a crosslinkable composition comprising the elastomer. The above-mentioned fluorine-containing elastomer is a fluorine-containing elastomer being crosslinkable with the compound (A), comprising 40 to 70% by mole of tetrafluoroethylene unit, 30 to 60% by mole of propylene unit and 0.1 to 2.5% by mole of a carboxyl group-containing vinyl monomer unit and having a Mooney viscosity at 121° C. of 5 to 100.Type: GrantFiled: March 19, 2009Date of Patent: March 17, 2015Assignee: Daikin Industries, Ltd.Inventors: Keiko Washino, Shigeru Morita, Takashi Yoshimura, Mitsuru Kishine
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Patent number: 8952099Abstract: A novel vulcanizable polymer composition is provided which is characterized by a specific combination of a polyamine crosslinking agent and a particular crosslinking accelerator. Furtheron polymer vulcanizates on the basis of such polymer compositions as well as method for preparing such polymer vulcanizate is provided, in particular in the form of mouldings or shaped parts.Type: GrantFiled: July 2, 2009Date of Patent: February 10, 2015Assignee: LANXESS Deutschland GmbHInventors: Matthias Soddemann, Martin Mezger, Christopher Ong, Sven Brandau, Michael Klimpel
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Publication number: 20150005454Abstract: An oleophobic grafted polymer includes a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer. A process for making an oleophobic grafted polymer includes crosslinking a fluoroelastomer with an aminofunctionalized silane and grafting an alkoxysilane-terminated perfluorinated polyether to the crosslinked fluoroelastomer.Type: ApplicationFiled: September 4, 2013Publication date: January 1, 2015Applicant: XEROX CORPORATIONInventors: Mandakini Kanungo, Matthew M. Kelly, Varun Sambhy, David J. Gervasi, Santokh S. Badesha, Chakkaravarthy Chidambareswarapattar, Michael S. Roetker
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Publication number: 20140378018Abstract: Disclosed is a copolymer of a polyfluoroalkyl alcohol (meth)acrylic acid derivative represented by the formula: CnF2n+1(CH2CF2)a(CF2CF2)b(CH2CH2)cOCOCR?CH2 (R: H or CH3, n: 1 to 6, a: 1 to 4, b: 1 to 3, and c: 1 to 3), and a (meth)acrylic acid polyoxyalkylene ester represented by the formula: R1(OR2)p(OR3)qOCOCR?CH2 (R: H or CH3; R1: H, an alkyl group, or an aromatic group; R2 and R3: alkylene groups having 1 to 6 carbon atoms; p: 2 to 50, q: 0 or 1 to 50), and also disclosed is a water- and oil-repellent comprising this fluorine-containing copolymer as an active ingredient. The water- and oil-repellent comprising this fluorine-containing copolymer as an active ingredient can be used as a stain-proof-type water- and oil-repellent that can apply effective stain-proof finish and stain removal finish to fiber fabrics, and that has excellent washing durability.Type: ApplicationFiled: November 16, 2012Publication date: December 25, 2014Inventor: Yoshiyama Kaneumi
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Patent number: 8889796Abstract: There is provided a perfluoroelastomer composition having a low glass transition temperature and excellent cold resistance and heat resistance and comprising a perfluoroelastomer comprising a tetrafluoroethylene unit (a), a perfluoro vinyl ether unit (b) and a cure site unit (c) having nitrile group, carboxyl group and/or alkoxycarbonyl group as a cure site, wherein the perfluoro vinyl ether unit (b) is contained in an amount of 8 to 23% by mole in the perfluoroelastomer.Type: GrantFiled: October 2, 2009Date of Patent: November 18, 2014Assignee: Daikin Industries, Ltd.Inventors: Junpei Terada, Tatsuya Morikawa, Daisuke Ota, Meiten Koh
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Patent number: 8877870Abstract: A fluorinated elastic copolymer which has iodine atoms, bromine atoms, or both iodine and bromine atoms, at its molecular terminals and which includes repeating units (a) based on tetrafluoroethylene, repeating units (b) based on a fluorinated monomer having one polymerizable unsaturated bond (provided that tetrafluoroethylene is excluded), and repeating units (c) based on a fluorinated monomer having at least two polymerizable unsaturated bonds, wherein the ratio (molar ratio) of the repeating units (a) to the repeating units (b) is (a)/(b)=40/60 to 90/10, and the proportion of the repeating units (c) based on the total amount of the repeating units (a) and the repeating units (b) is from 0.01 to 1 mol %.Type: GrantFiled: July 15, 2011Date of Patent: November 4, 2014Assignee: Asahi Glass Company, LimitedInventors: Hiroshi Funaki, Kunio Watanabe, Keigo Matsuura, Ng Soon Yeng
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Publication number: 20140288232Abstract: Diaminospirobisindane diols, curable compositions, curative compositions, cured articles, and methods of curing are described.Type: ApplicationFiled: November 7, 2012Publication date: September 25, 2014Inventors: Werner M.A. Grootaert, Michael S. Wendland, George W. Griesgraber
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Patent number: 8822002Abstract: An object of the present invention is to provide a fluorine-containing elastomer composition being flexible and having excellent fuel barrier property, heat resistance, chemical resistance and oil resistance. Another object of the present invention is to provide a sealing material, a molded article and a fuel hose obtained by crosslinking the fluorine-containing elastomer composition. The composition is a fluorine-containing elastomer composition comprising a polyol-crosslinkable fluorine-containing elastomer, a polyol crosslinking agent and a hydrotalcite, wherein an acid acceptor comprising only an oxide or hydroxide of a divalent metal is contained in an amount of not more than 2 parts by weight based on 100 parts by weight of the fluorine-containing elastomer.Type: GrantFiled: May 17, 2007Date of Patent: September 2, 2014Assignee: Daikin Industries, Ltd.Inventors: Daisuke Ota, Katsusada Tokuhira
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Patent number: 8816013Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain carbazates. The carbazate is of the general formula R1OC(O)NHNHR2, wherein R1 is 9-fluorenylmethyl, benzyl, aryl, or a heterocycle; R2 is H, alkyl, aryl, heterocycle, CO2R3 or CH2R4; R3 is alkyl, aryl, benzyl or a heterocycle; and R4 is a fluoroalkyl group.Type: GrantFiled: March 15, 2012Date of Patent: August 26, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Christopher J Bish, Peter A Morken
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Patent number: 8785563Abstract: A cross-linkable fluoroelastomer remarkably excellent in cross-linkability and a method for its production, a fluoroelastomer composition excellent in the cross-linked physical properties, and a cross-linked rubber. A cross-linkable fluoroelastomer having a Mooney viscosity of from 20 to 300, obtainable by heat-treating a mixture of a fluoroelastomer (A), an organic peroxide (B) and at least one additive (C) selected from the group consisting of a C12-28 higher fatty acid, a metal salt of a C12-28 higher fatty acid, an ester of a C12-28 higher fatty acid, an amide of a C12-28 higher fatty acid and a C12-28 higher aliphatic alcohol, at a temperature of from 110 to 380° C.Type: GrantFiled: April 6, 2010Date of Patent: July 22, 2014Assignee: Asahi Glass Company, LimitedInventors: Masahide Yodogawa, Masayuki Saito
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Patent number: 8785581Abstract: A noncrystalline fluoroelastomer which is a copolymer consisting essentially of vinylidene fluoride and a fluoromonomer represented by the general formula (1): CH2?CFRf??(1) wherein Rf is a straight or branched fluoroalkyl group containing 1 to 12 carbon atoms, and has a vinylidene fluoride units/fluoromonomer units mol ratio of 78/22 to 22/78 and a glass transition temperature of not higher than 25° C.Type: GrantFiled: June 7, 2013Date of Patent: July 22, 2014Assignee: Daikin Industries, Ltd.Inventors: Shigeru Morita, Masanori Kitaichi, Shouji Fukuoka, Daisuke Ota
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Patent number: 8785556Abstract: 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 fluorinated component and an adhesion promoter compound. The adhesion promoter compound can include an alkoxy group, a furfuryl-containing ring structure, and a reactive group.Type: GrantFiled: April 30, 2012Date of Patent: July 22, 2014Assignee: Cytonix, LLCInventor: James F. Brown
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Patent number: 8785564Abstract: A resin material contains a polymer of a composition containing an isocyanate and an acrylic resin having OH-group-containing side chains in which a proportion of OH-group-containing side chains each having 6 or more carbon atoms relative to all of the OH-group-containing side chains is about 76 mol % or more and about 100 mol % or less.Type: GrantFiled: February 12, 2013Date of Patent: July 22, 2014Assignee: Fuji Xerox Co., Ltd.Inventors: Hiroshi Saegusa, Hisae Yoshizawa, Tomoko Miyahara, Kazunori Anazawa, Kaoru Torikoshi
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Patent number: 8765876Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazide curatives. The hydrazide is of the general formula R1(C(O))nNHNHR2, wherein n is 1 or 2; R1 is NH2, NHNH2, NHR3, NR32, NHNHC(O)NH2, NHNHC(O)NHNH2, NHNHR2, or NHC(O)NHNH2; R2 is H, alkyl, aryl, heterocycle, CO2R3, C(O)R3, CH2R4, or C(O)R4; R3 is alkyl, aryl, heterocycle, or CH2R4; and R4 is a fluoroalkyl group.Type: GrantFiled: March 15, 2012Date of Patent: July 1, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Christopher J Bish, Peter A Morken, Robert Clayton Wheland
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Patent number: 8765875Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain hydrazide curatives. The hydrazide is of the general formula R1C(O)NHNHR2, wherein R1 is alkyl, aryl, benzyl, heterocycle, fluoroalkyl, or H; R2 is H, alkyl, aryl, heterocycle, CO2R3, C(O)H, or CH2R4; R3 is alkyl, CH2R4, aryl, benzyl, or heterocycle; and R4 is a fluoroalkyl group.Type: GrantFiled: March 15, 2012Date of Patent: July 1, 2014Assignee: E I du Pont de Nemours and CompanyInventors: Christopher J Bish, Peter A Morken
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Patent number: 8722780Abstract: The present invention provides a perfluoroelastomer composition comprising: a perfluoroelastomer having a nitrogen-containing curing site; and a catalyst mixture comprising: a tertiary amine; and an organic dicarboxylic acid represented by general formula (1) or (2) in an amount of 0.4 to 2 mol per mol of the tertiary amine: HOOC—COOH??(1) HOOC-A-COOH??(2) wherein A in formula (2) is an alkyl group having 1 to 10 carbon atoms or a phenyl group, which may be partially or fully fluorinated. Also disclosed is a perfluoroelastomer molded article obtained from the composition.Type: GrantFiled: February 26, 2009Date of Patent: May 13, 2014Assignee: Nichias CorporationInventors: Tomoya Shimizu, Naoya Kuzawa, Takeshi Kuboyama, Hideyuki Shishitani
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Publication number: 20140080938Abstract: Intermediate products (compounds, semi-finished goods) for polymer materials having coupled components, to the polymer materials based on the intermediate products, and to the components to be manufactured therefrom. A method for producing intermediate products, polymer materials and components, and to the use thereof.Type: ApplicationFiled: March 9, 2012Publication date: March 20, 2014Inventor: Felix Winkelmann
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Publication number: 20140051811Abstract: A resin material contains a polymer of a composition containing an isocyanate and an acrylic resin having OH-group-containing side chains in which a proportion of OH-group-containing side chains each having 6 or more carbon atoms relative to all of the OH-group-containing side chains is about 76 mol % or more and about 100 mol % or less.Type: ApplicationFiled: February 12, 2013Publication date: February 20, 2014Applicant: FUJI XEROX CO., LTD.Inventors: Hiroshi SAEGUSA, Hisae YOSHIZAWA, Tomoko MIYAHARA, Kazunori ANAZAWA, Kaoru TORIKOSHI
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Patent number: 8623963Abstract: High purity perfluoroelastomer composites and processes for producing the same are provided. High purity composites may be formed from compositions comprising a crosslinkable fluoroelastomer terpolymer of TFE, PAVE, and CNVE, and functionalized PTFE, which may be crosslinked to form crosslinked composites having low metal content and low compression set. Emulsion mixtures for forming the high purity composites are also provided.Type: GrantFiled: January 14, 2009Date of Patent: January 7, 2014Assignee: W. L. Gore & Associates, Inc.Inventors: Ping Xu, Jack Hegenbarth
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Patent number: 8618222Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile group-containing cure site monomer are cured with certain hydroxylamine derivatives. The hydroxylamine derivative is of formula R1(C(O))nNHOR2 wherein n is 0 or 1; R1 is H, C(O)R3, C(O)R4, C(O)OR3, or C(O)SR3; R2 is H, C(O)R3, or C(O)OR3; R3 is C1-C20 alkyl group, aryl, heterocycle, benzyl, 9-fluorenylmethyl, or CH2R4; and R4 is a fluoroalkyl group, with the proviso that R1 and R2 cannot simultaneously be H.Type: GrantFiled: March 12, 2012Date of Patent: December 31, 2013Assignee: E I du Pont de Nemours and CompanyInventors: Christopher J Bish, Peter A Morken
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Patent number: 8618190Abstract: A latex marking ink suitable for marking rubber articles has been developed. The ink comprises vulcanizable rubber latex, pigment, vulcanizing agent, and non-ionic stabilizer dispersed in water. Shear stability is dramatically and unexpectedly increased by the presence of the non-ionic stabilizer even though viscosity also increases.Type: GrantFiled: February 3, 2011Date of Patent: December 31, 2013Assignee: PolyOne CorporationInventors: Heather E. Burik, Steve White
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Publication number: 20130345365Abstract: Fluoroelastomer compositions comprising fluoroelastomers having copolymerized units of a nitrile-containing cure site monomer are cured with certain phenol hydrazine complex curatives.Type: ApplicationFiled: June 25, 2012Publication date: December 26, 2013Applicant: E I DU PONT DE NEMOURS AND COMPANYInventors: CHRISTOPHER J BISH, Peter A. Morken