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Небесная энциклопедия

Космические корабли и станции, автоматические КА и методы их проектирования, бортовые комплексы управления, системы и средства жизнеобеспечения, особенности технологии производства ракетно-космических систем

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Мониторинг СМИ

Мониторинг СМИ и социальных сетей. Сканирование интернета, новостных сайтов, специализированных контентных площадок на базе мессенджеров. Гибкие настройки фильтров и первоначальных источников.

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Форма поиска

Поддерживает ввод нескольких поисковых фраз (по одной на строку). При поиске обеспечивает поддержку морфологии русского и английского языка
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Применить Всего найдено 13825. Отображено 100.
26-01-2012 дата публикации

Filled Fluororesin Sheet, Process for Producing the Same, and Gasket

Номер: US20120022200A1
Автор: Shinya Kurokawa
Принадлежит: Nippon Valqua Industries Ltd

Provided is a filled fluororesin sheet excellent in stress relaxation properties, in particular stress relaxation properties at a high temperature. The filled fluororesin sheet includes a fluororesin and an inorganic filler having a revised Mohs hardness of not less than 8, in a fluororesin:inorganic filler volume ratio of 30-55:70-45 (wherein the total of the two is 100).

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Номер записи: 1
22-03-2012 дата публикации

Polymer thick film encapsulant and enhanced stability ptc carbon system

Номер: US20120067867A1
Автор: Jay Robert Dorfman, Vince Arancio
Принадлежит: EI Du Pont de Nemours and Co

The invention is directed to a polymer thick film encapsulant composition comprising thermoplastic fluoropolymer resin and acrylic resin dissolved in organic solvents. The deposited encapsulant composition is processed at a time and energy sufficient to remove all solvent and form an encapsulant. The invention is further directed to using the encapsulant composition to form an encapsulant in PTC heater circuitry and , in particular, in PTC heater circuitry in mirror heater and seat heater applications.

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Номер записи: 2
17-05-2012 дата публикации

Organosol composition of fluorine-containing polymer

Номер: US20120123031A1
Автор: Atsuko Tanaka, Kazunobu Uchida, Nobuhiko Tsuda, Takahiro Kitahara, Taku Yamanaka, Takuji Ishikawa, Tomoyuki Fukatani
Принадлежит: Daikin Industries Ltd

The present invention provides an organosol composition that is stable even in the case that the PTFE particle content is high. The present invention relates to an organosol composition of PTFE particles, comprising PTFE particles (A), a polymer (B), and an organic solvent (S), wherein (1) the polymer (B) is soluble in the organic solvent (S), (2) the amount of the PTFE particles (A) is not lower than 50% by mass of the total amount of the PTFE particles (A) and the polymer (B), and (3) the precipitation ratio of the PTFE particles after 48 hours is not higher than 60% when the total solids concentration of the PTFE particles (A) and the polymer (B) is 5% by mass.

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Номер записи: 3
07-06-2012 дата публикации

Aqueous process for making fluoropolymers

Номер: US20120142858A1
Автор: Greylan Burch, Mehdi Durali, Patrick Kappler, Ramin Amin-Sanayei
Принадлежит: Arkema Inc

A novel aqueous polymerization process for making fluoropolymer dispersions is disclosed in which non-ionic non-fluorinated emulsifier is used to produce fluoropolymer emulsions. The emulsifiers contain blocks of polyethylene glycol, polypropylene glycol and/or polytetramethylene glycol. The process and fluoropolymer produced contain no fluorinated surfactant. The fluoropolymers have excellent resistance to discoloration.

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Номер записи: 4
14-06-2012 дата публикации

Mold release film and process for producing light emitting diode

Номер: US20120148820A1
Автор: Tamao Okuya
Принадлежит: Asahi Glass Co Ltd

To provide a mold release film for producing a light emitting diode by a mold, which is less susceptible to formation of pin holes or rupture and which is applicable to mass production of a light emitting diode by means of a mold having a plurality of cavities, and a process for producing a light emitting diode by means of such a mold release film. A mold release film to be disposed on the cavity surface of a mold to form a substantially hemispherical lens portion by encapsulating a light emitting element of a light emitting diode with an encapsulation resin, which release film has a thickness of from 16 to 175 μm and a tensile rupture elongation of from 600 to 3,000% at 110° C. as measured in accordance with JIS K7127, and a process for producing a light emitting diode by means of such a mold release film.

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Номер записи: 5
05-07-2012 дата публикации

STENT GRAFT WITH TWO LAYER ePTFE LAYER SYSTEM WITH HIGH PLASTICITY AND HIGH RIGIDITY

Номер: US20120172977A1
Автор: Gunther STOCKERT, Rainer Bregulla
Принадлежит: Abbott Cardiovascular Systems Inc

A vascular prosthesis and method are disclosed comprising a first flexible stent having a lattice structure with a compacted configuration and an expanded configuration, a second flexible stent inside the first flexible stent to form a tubular structure, a first film layer of graft material such as expanded polytetrafluoroethylene sandwiched between the first and second flexible stents, and a second film layer of expanded polytetrafluoroethylene sandwiched between the first and second flexible stents, the second layer having a higher rigidity and a lower plasticity than the first layer.

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Номер записи: 6
12-07-2012 дата публикации

Electrically conductive polymer compositions for coating applications

Номер: US20120175596A1
Автор: Charles D. Lang, Che-Hsiung Hsu, Daniel David Lecloux, Gordana Srdanov, Hjalti Skulason, Michel Dubeau, Nancy L. Gin, Tami Janene Faircloth, Trevor Hsu, Veevin Tsao Kuo Hsu, Wesley Hsu
Принадлежит: EI Du Pont de Nemours and Co

The present invention relates to electrically conductive polymer compositions, and their use in electronic devices. The compositions contain a semi-aqueous dispersion of at least one electrically conductive polymer doped with at least one highly-fluorinated acid polymer, non-conductive oxide nanoparticles, at least one high-boiling organic liquid, and at least one lower-boiling organic liquid.

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Номер записи: 7
02-08-2012 дата публикации

Fluoropolymer emulsion coatings

Номер: US20120196042A1
Автор: Jurgen Hofmans
Принадлежит: EI Du Pont de Nemours and Co

The present invention relates to an aqueous/oil emulsion containing fluoropolymer that is capable of forming thick coatings in a single pass, which coatings after drying and baking are free of cracks.

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Номер записи: 8
09-08-2012 дата публикации

Crosslinkable fluororubber composition and crosslinked rubber article

Номер: US20120202950A1
Автор: Daisuke Shirakawa, Kunio Watanabe, Makoto Honda, Tomoyuki Fujita
Принадлежит: Asahi Glass Co Ltd

Obtaining a crosslinked rubber with high flexibility at low temperature includes crosslinking a fluororubber composition. The fluororubber composition includes a fluororubber and a compound of formula (X—) x (Z—) z Y. In the formula, X is U—(CF 2 ) a O(CF 2 CF 2 O) b —; Z is R F O(CF 2 CF 2 O) c —; Y is a (x+z) valent perfluoro saturated hydrocarbon group, optionally interrupted by an etheric oxygen atom; x is an integer of at least 3; z is an integer of at least 0; U is a monovalent group with an unsaturated hydrocarbon, a bromine atom, an iodine atom, or a combination thereof; R F is a C 1-20 linear perfluoroalkyl group, optionally interrupted by an etheric oxygen atom; a is an integer of from 0 to 20; b is an integer of from 1 to 200; and c is an integer of from 3 to 200.

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Номер записи: 9
20-09-2012 дата публикации

Durable polyoxymethylene composition

Номер: US20120238680A1
Автор: Chi-En Lin, Jung-Pao Chang
Принадлежит: MIN AIK Tech CO Ltd

A durable polyoxymethylene composition includes a polyoxymethylene copolymer with 1,3-dioxolane as a comonomer, a lubricant, an inorganic filler, a nucleating agent including a sodium salt, a stabilizer, an anti-static agent. A ramp is made of the durable polyoxymethylene. The ramp and the durable polyoxymethylene have excellent micro-wear-resistant property.

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Номер записи: 10
04-10-2012 дата публикации

Polymer blend composition and tunable actuators using the same

Номер: US20120248945A1
Автор: Chong-min Koo, Hee-La KWAK, Jin-Hong Lee, Kie-Yong Cho, Kyung-Ho Min, Kyung-Youl BAEK, Sang-Hee Park, Seung-Sang Hwang, Soon-Man Hong
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

The present invention relates to one of energy conversion devices, actuator and a dielectric layer used in the actuator. The present invention provides a polymer blend composition capable of easily controlling the ability of converting electrical energy to mechanical energy, which is prepared by blending a piezoelectric polymer with a flexible elastomeric block copolymer showing an effective miscibility therewith, and a tunable actuator using the same.

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Номер записи: 11
18-10-2012 дата публикации

Liquid-repellent, large-area, electrically-conducting polymer composite coatings

Номер: US20120261182A1
Автор: Arindam Das, Constantine M. Megaridis, Ilker S. Bayer, Manish K. Tiwari
Принадлежит: University of Illinois

A polymeric composition including a blend of poly(vinylidine fluoride) (PVDF), poly(methyl methacrylate) (PMMA), carbon nanofibers, and poly(tetrafluoroethylene) (PTFE) particles is described and claimed. The polymeric composition may be coated onto a substrate and dried to form a film adhered to the substrate. The film optionally exhibits an electrical conductivity of about 10 Siemens per meter (S/m) to about 310 S/m and an electromagnetic interference shielding of about 32 decibels. Further, a coated substrate is provided including a substrate and a film adhered to the substrate, where the film includes a polymeric composition comprising a blend of PVDF, PMMA, carbon nanofibers, and PTFE particles.

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Номер записи: 12
08-11-2012 дата публикации

Bicycle front derailleur body and device for adjustable rest of such derailleur body on a tube of a bicycle frame

Номер: US20120280097A1
Автор: Paolo Pasqua
Принадлежит: Campagnola Srl

A device for connecting a front derailleur to the front tube of a bicycle. The device is fixed to the derailleur and the front tube at a predetermined position and includes an adjustable rest for contacting the front tube and positioning the derailleur.

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Номер записи: 13
15-11-2012 дата публикации

Vehicle engine oil seal

Номер: US20120286479A1
Автор: Hidetaka Ogishi, Kouhei Takemura, Tetsuya Mizone, Tomihiko Yanagiguchi
Принадлежит: Daikin Industries Ltd, Honda Motor Co Ltd

The present invention provides a vehicle engine oil seal having excellent sliding properties over the entire rotation range of engines from a low rotation range to a high rotation range. The present invention is a vehicle engine oil seal comprising: an elastic member with a seal lip portion having at least a main lip portion, wherein the elastic member is formed of a composition containing a fluororubber and a fluororesin and has projecting portions at least on a surface of the main lip portion, the projecting portions being substantially formed of the fluororesin contained in the composition, the fluororesin is a copolymer including a polymerization unit derived from ethylene and a polymerization unit derived from tetrafluoroethylene, and the fluororubber is a polymer including a polymerization unit derived from vinylidene fluoride.

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Номер записи: 14
22-11-2012 дата публикации

High dielectric film

Номер: US20120293909A1
Автор: Eri Mukai, Kouji Yokotani, Mayuko Tatemichi, Meiten Koh, Miharu Ota, Nanako Takano, Nobuyuki Komatsu
Принадлежит: Daikin Industries Ltd

The present invention provides a high dielectric film comprising: a film-forming resin (A); and inorganic particles (B), wherein the film-forming resin (A) contains a vinylidene fluoride resin (a1), an amount of the inorganic particles (B) is not less than 0.01 parts by mass and less than 10 parts by mass for each 100 parts by mass of the film-forming resin (A), and the inorganic oxide particles (B) is at least one selected from the group consisting of: (B1) inorganic oxide particles of a metallic element of Group 2, 3, 4, 12, or 13 of the Periodic Table, or inorganic oxide composite particles of these; (B2) inorganic composite oxide particles represented by formula (1): M 1 a1 N b1 O c1 wherein M 1 represents a metallic element of Group 2, N represents a metallic element of Group 4, a1 represents 0.9 to 1.1, b1 represents 0.9 to 1.1, c1 represents 2.8 to 3.2, and the numbers of M 1 and N each may be more than 1; and (B3) inorganic oxide composite particles of an oxide of a metallic element of Group 2, 3, 4, 12, or 13 of the Periodic Table and silicon oxide. The film has improved volume resistivity while maintaining a high dielectric constant owing to a VdF resin.

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Номер записи: 15
22-11-2012 дата публикации

Barrier and priming compositions

Номер: US20120296030A1
Автор: Chih-Chung Hsu
Принадлежит: 3M Innovative Properties Co

The present application is directed to a primer composition comprising a fluorinated polymer and a nitrogen containing polymer. In some embodiments, the fluorinated polymer is a copolymer. In some embodiments, the fluorinated polymer is chlorinated. In some embodiments, the nitrogen containing polymer is amino functional, and in some embodiments, the nitrogen containing polymer is amide functional.

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Номер записи: 16
29-11-2012 дата публикации

Simplified organic electronic device employing polymeric anode with high work function

Номер: US20120298974A1
Автор: Seong-Hoon Woo, Tae-woo Lee
Принадлежит: Academy Industry Foundation of POSTECH

An electronic device employing a polymeric anode with high work function.

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Номер записи: 17
04-04-2013 дата публикации

MELTPROCESSED FLUOROPOLYMER ARTICLE AND METHOD FOR MELT-PROCESSING FLUOROPOLYMERS

Номер: US20130085220A1
Автор: Comeaux Christopher M., Leboeuf Mathilde, Supriya Lakshmi
Принадлежит:

A polymer article includes a meltproces sable blend of a melt-viscid fluoropolymer and a liquid crystalline polymer. Methods are presented for preparing a meltproces sable blend from a melt-viscid fluoropolymer and liquid crystalline polymer. 1. A polymeric article comprises a meltprocessable blend of a melt-viscid fluoropolymer and a liquid crystalline polymer (LCP).2. The polymeric article according to claim 1 , wherein the blend has a weight-to-weight ratio of fluoropolymer to LCP of not greater than about 99:1 claim 1 , such as not greater than about 95:5 claim 1 , not greater than about 90:10 claim 1 , not greater than about 85:15 claim 1 , not greater than about 80:20 claim 1 , not greater than about 75:25 claim 1 , not greater than about 70:30 claim 1 , not greater than about 60:40 claim 1 , or not greater than about 50:50.3. The polymeric article according to claim 1 , wherein the melt-viscid fluoropolymer is selected from polytetrafluoroethylene (PTFE) claim 1 , fluorinated ethylene-propylene (FEP) claim 1 , polyvinylidenefluoride (PVDF) claim 1 , polychlorotrifluoroethylene (PCTFE) claim 1 , ethylene chlorotrifluoroethylene (ECTFE) claim 1 , perfluoroalkoxypolymer (PFA) claim 1 , perfluoroelastomers (FFKM) claim 1 , or any combination thereof.4. The polymeric article according to claim 1 , wherein the melt-viscid fluoropolymer has a melt viscosity of at least about 10Poise claim 1 , such as at least about 10Poise claim 1 , at least about 10Poise claim 1 , at least about 10Poise claim 1 , at least about 10Poise claim 1 , at least about 10Poise claim 1 , at least about 10Poise claim 1 , or even at least about 10Poise.5. The polymeric article according to claim 1 , wherein the LCP comprises repeat units derived form 4-hydroxybenzoic acid claim 1 , 4 claim 1 ,4′-biphenol claim 1 , terphthalic acid claim 1 , isophthalic acid claim 1 , 1 claim 1 ,5-naphthalenedicarboxylic acid claim 1 , or 2 claim 1 ,6-naphthalenedicarboxylic acid claim 1 , hydroxynapthoic acid ...

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Номер записи: 18
02-05-2013 дата публикации

Fluoroelastomer composition

Номер: US20130109797A1
Автор: Giuseppe Marchionni, Marco Apostolo, Marco Avataneo, Matteo Fantoni
Принадлежит: Solvay Specialty Polymers Italy SpA

The invention pertains to a (per)fluoroelastomer composition comprising: at least one (per)fluoroelastomer [fluoroelastomer (A)]; and from 0.1 to 30 weight parts, per hundred parts of fluoroelastomer (A), of at least one perfluoropolyether block copolymer [polymer (E)] comprising: A) one or more (per)fluoropolyoxyalkylene segment (chain R t ), that is to say a segment comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and B) one or more polyalkylene segment (chain R a ) comprising recurring units of formula: —(CR 1 R 2 —CR 3 R 4 )— wherein R 1 , R 2 , R 3 , R 4 , equal to or different from each other, are selected from the group consisting of H, halogens (preferably F, Cl); C 1 -C 6 (hydro)carbon groups, optionally containing fluorine or other heteroatoms, preferably perfluoroalkyl or (per)fluorooxyalkyl.

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Номер записи: 19
09-05-2013 дата публикации

Film containing an odourless fluorinated acrylic polymer for photovoltaic use

Номер: US20130112268A1
Автор: Anthony Bonnet, Francois Beaume, Nicolas Devaux, Stephane Bizet
Принадлежит: Arkema France SA

The present invention relates to a composition consisting of a fluoropolymer and a white inorganic filler, said composition being intended for the manufacture of monolayer films opaque to visible tight and to UV radiation, useable in particular in the field of photovoltaic cells. The polymeric composition consists of a fluoropolymer and zinc oxide (ZnO), said filler being present in said composition in a weight proportion of 20 to 40%, preferably 20 to 35%. The use of this filler serves on the one hand to avoid the addition of acrylic polymers to the fluoropolymer, and on the other hand, to use processing temperatures that are compatible with the manufacture of a monolayer film by extrusion blow moulding, that is, a temperature of about 220 to 260° C., thereby serving to prevent the degradation of the fluoropolymer.

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Номер записи: 20
16-05-2013 дата публикации

CURABLE COMPOSITION AND PROCESS FOR PRODUCING CURED FILM

Номер: US20130123382A1
Автор: ABE Takefumi, ERIGUCHI Takeshi, Ito Masahiro, TSURUOKA Kaori
Принадлежит: Asahi Glass Company, Limited

To provide a curable composition which is sufficiently cured even without a heating step at high temperature and from which a low dielectric constant cured film excellent in the solvent resistance is obtained. 1. A curable composition comprising a fluorinated polyarylene prepolymer (A) having a crosslinkable functional group , a compound (B) having a number average molecular weight of from 140 to 5 ,000 , having at least two crosslinkable functional groups and having no fluorine atoms , a copolymer (C) having the following units (c1) and (c2) and a radical polymerization initiator (D):unit (c1): a unit having a fluoroalkyl group having at most 20 carbon atoms, which may have an etheric oxygen atom between carbon atoms, and having no crosslinkable functional group;unit (c2): a unit having a crosslinkable functional group.2. The curable composition according to claim 1 , wherein each of the crosslinkable functional groups in the prepolymer (A) claim 1 , the compound (B) and the compound (C) which are independent of one another claim 1 , is a crosslinkable functional group selected from the group consisting of a vinyl group claim 1 , an allyl group claim 1 , an ethynyl group claim 1 , a vinyloxy group claim 1 , an allyloxy group claim 1 , an acryloyl group claim 1 , an acryloyloxy group claim 1 , a methacryloyl group and a methacryloyloxy group.3. The curable composition according to claim 1 , which contains from 10 to 80 parts by mass of the compound (B) based on the total amount (100 parts by mass) of the prepolymer (A) and the compound (B).4. The curable composition according to claim 1 , wherein the radical polymerization initiator (D) is a thermal initiator or a photoinitiator.5. The curable composition according to claim 1 , which contains from 0.1 to 20 parts by mass of the copolymer (C) based on the total amount (100 parts by mass) of the prepolymer (A) and the compound (B).6. The curable composition according to claim 1 , wherein the unit (c1) is a unit formed ...

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Номер записи: 21
16-05-2013 дата публикации

Melt-Fabricable Tetrafluoroethylene/perfluoro(alkyl vinyl ether) Copolymer Having Improved Heat Aging Property

Номер: US20130123429A1
Автор: LAHIJANI JACOB
Принадлежит: E I DU PONT DE NEMOURS AND COMPANY

Heat aging of the composition comprising melt-fabricable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer, the alkyl containing 1 to 5 carbon atoms and melt flowable polytetrafluoroethylene is effective to cause thermal transformation of the composition in the solid state, which is epitaxial co-crystallization of the polymer components of the composition, and other valuable changes, such as increased continuous use temperature. 1. Process comprising heat aging a composition comprising melt-fabricable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer , wherein said perfluoroalkyl contains 1 to 5 carbon atoms , and melt flowable polytetrafluoroethylene , said heat aging being carried out at a temperature greater than 260° C. with said composition being in the solid state.2. The process of wherein said heat aging causes said composition to undergo epitaxial co-crystallization.3. The process of wherein said heat aging is at a temperature of at least 280° C. and/or for at least 4 hours.4. The process of wherein said heat aging is at a temperature of at least 300° C.5. The process of wherein said heat aging is effective wherein said composition exhibits a continuous use temperature of at least 300° C.6. The process of wherein the exhibition of said continuous use temperature is characterized by said composition retaining at least 80% of its tensile modulus prior to said heat aging.7. The process of wherein said heat aging is effective to reduce the coefficient of friction of said composition.8. The process of wherein said heat aging is effective to reduce permeation of said composition by one or more of the gases methane claim 1 , oxygen and carbon dioxide by at least 50%.9. The process of wherein said heat aging is effective to increase the resistance of said composition to sagging and/or ballooning.10. The process of wherein said composition is in the form of tubing.11. Process of wherein said heat aging produces one or more of the following ...

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Номер записи: 22
30-05-2013 дата публикации

Antistatic antireflection film, method for manufacturing antistatic antireflection film, polarizing plate and image display device

Номер: US20130135726A1
Автор: Daiki Wakizaka, Kenichi Fukuda
Принадлежит: Fujifilm Corp

An antistatic antireflection film, including; a support; a hardcoat layer formed from a composition for a hardcoat layer containing at least a compound having a quaternary ammonium salt group; and a low refractive index layer formed from a composition for a low refractive index layer containing at least the following (a), (b), (c) and (d), in this order, wherein, (a) is an ethylenically unsaturated group-containing fluoropolymer, (b) is a fluorine-containing polyfunctional monomer having a surface free energy of 23 mN/m or more when a film is formed alone, four or less —CF 3 groups in a molecule, a fluorine content of 30% or more, and at least three reactive functional groups in one molecule, (c) is hollow silica fine particles having an average particle size of 10 nm to 100 nm, and (d) is a compound having a dimethylsiloxane structure.

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Номер записи: 23
30-05-2013 дата публикации

PMMA/PVDF FILM WITH PARTICULARLY HIGH WEATHERING STABILITY AND HIGH UV PROTECTIVE ACTION

Номер: US20130136910A1
Автор: Arndt Thomas, Dickhaut-Bayer Guenther, Goldacker Thorsten, Laschitsch Alexander, Neuhaeuser Achim, Numrich Uwe
Принадлежит:

A transparent plastic foil with improved weathering resistance and increased intrinsic stability is provided. The foil contains a) poly(meth)acrylate and polyvinylidene fluoride in a ratio of from 1:0.01 to 1:0.5 (w/w); and b) a mixture containing a UV stabilizer and a UV absorber. Use of the foil as a protective coating is also included. 1. A transparent plastic foil with improved weathering resistance and increased intrinsic stability , comprisinga) poly(meth)acrylate and polyvinylidene fluoride in a ratio of from 1:0.01 to 1:0.5 (w/w); andb) a mixture composed of UV stabilizers and of UV absorbers.2. The foil according to claim 1 , whereinthe foil is a single-layer foil.3. The foil according to claim 1 , whereinthe foil is a multilayer foil.4. The foil according to claim 3 , whereinthe foil comprises at least two sublayers, of which at least one comprises poly(meth)acrylate and at least one other comprises polyvinylidene fluoride.5. The foil according to claim 4 , whereinthe foil comprises two sublayers, of which one is a poly(methyl) methacrylate layer and the other is a polyvinylidene fluoride layer.6. The foil according to claim 3 , wherein the foil has been coextruded.7. The foil according to claim 1 , wherein a transparency of the foil is greater than 91.5%.8. The foil according to claim 1 , whereina weight-average molar mass MM of the poly(meth)acrylate a) is at least 80,000 g/mol, determined by of gel permeation chromatography against PMMA calibration standards.9. The foil according to claim 8 , whereinthe weight-average molar mass MM of the poly(meth)acrylate a) is at least 120,000 g/mol, determined by gel permeation chromatography against PMMA calibration standards.10. The foil according to claim 9 , whereinthe weight-average molar mass MM of the poly(meth)acrylate a) is at least 150,000 g/mol, determined by gel permeation chromatography against PMMA calibration standards.11. The foil according to claim 1 , whereina weight-average molar mass MM of the ...

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Номер записи: 24
13-06-2013 дата публикации

FLUOROELASTOMER COMPOSITION AND MOLDED ARTICLE

Номер: US20130150503A1
Автор: Tanaka Hiroyuki
Принадлежит: DAIKIN INDUSTRIES, LTD.

The present invention is to provide a fluoroelastomer composition which can suppress generation of unvulcanized portions even when a quaternary phosphonium salt is used as a vulcanization accelerator. Specifically, the present invention is a fluoroelastomer composition containing a polyol-crosslinkable fluoroelastomer, a polyhydroxy aromatic compound, a quaternary phosphonium salt, a divalent metal oxide and/or divalent metal hydroxide and an antioxidant. 1. A fluoroelastomer composition comprising:a polyol-crosslinkable fluoroelastomer,a polyhydroxy aromatic compound,a quaternary phosphonium salt,a divalent metal oxide and/or divalent metal hydroxide and an antioxidant.2. The fluoroelastomer composition according to claim 1 ,wherein the antioxidant is at least one selected from the group consisting of amine-based antioxidants, phenolic antioxidants, phosphite antioxidants and benzimidazole-based antioxidants.3. The fluoroelastomer composition according to claim 1 ,wherein the polyhydroxy aromatic compound is 2,2-bis(4-hydroxyphenyl)perfluoropropane.4. The fluoroelastomer composition according to claim 1 ,wherein the quaternary phosphonium salt is at least one selected from the group consisting of benzyltriphenylphosphonium chloride and 2,2-bis(4-hydroxyphenyl)perfluoropropane salt of benzyltriphenylphosphonium.5. The fluoroelastomer composition according to claim 1 ,wherein the antioxidant is contained at less than 0.5 parts by mass relative to 100 parts by mass of the fluoroelastomer.6. A molded article obtained with the fluoroelastomer composition according to .7. The molded article according to claim 6 , which is a sealing material. The present invention relates to a fluoroelastomer composition and a molded article.Patent Literature 1 discloses a fluoroelastomer vulcanizing composition characterized in that it comprises (a) a peroxide vulcanizable fluoroelastomer, (b) an organic peroxide, (c) a multi-functional co-crosslinking agent and (d) a phenolic ...

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Номер записи: 25
13-06-2013 дата публикации

METHOD OF PRODUCING FLUOROPOLYMERS USING ACID-FUNCTIONALIZED MONOMERS

Номер: US20130150519A1
Автор: Durali Mehdi, Hedhli Lotfi
Принадлежит: Arkema Inc.

A fluoropolymer latex is obtained by emulsion polymerization of one or more fluoromonomers in the presence of one or more acid-functionalized monomers such as vinyl sulfonic acid or a salt thereof. A fluorosurfactant need not be present. 1. A process for preparing a fluoropolyrner in an aqueous reaction medium , comprising:a) forming an aqueous emulsion comprising at least one radical initiator, at least one acid-functionalized monomer or salt thereof, and at least one fluoromonomer, andb) initiating polymerization of said at least one fluoromonomer.2. The process of claim 1 , wherein the process uses no surfactant.3. The process of claim 1 , wherein the process uses no fluorosurfactant.4. The process of claim 1 , wherein the aqueous emulsion additionally comprises a surfactant other than a fluorosurfactant.5. The process of claim 1 , wherein said acid-functionalized monomer or salt thereof is functionalized with at least one acid group selected from the group consisting of sulfonic acid groups claim 1 , phosphonic acid groups and carboxylic acid groups and salts thereof.6. The process of claim 1 , wherein said acid-functionalized monomer or salt thereof is vinyl sulfonic acid or a salt thereof.7. The process of claim 1 , wherein said acid-functionalized monomer or salt thereof is selected from the group consisting of vinyl sulfonic acid claim 1 , acrylic acid claim 1 , methacrylic acid claim 1 , vinyl phosphonic acid claim 1 , itaconic acid claim 1 , and salts thereof.8. The process of claim 1 , wherein the acid-functionalized monomer or salt thereof has a structure selected from:{'sub': '3', 'R—CH=CH—SOM;'}{'sub': 3', '3, 'MOS—R—CH=CH—SOM;'}{'sub': '2', 'R—CH=CH—COM;'}{'sub': 2', '2, 'CH=C(R)—COM;'}{'sub': 2', '3', '2, 'CH=CH—POM;'}{'sub': 3', '2, 'R—CH=CH—POM; and'}{'sub': 3', '2, 'R—CH=C(R)—POM;'}where R is a hydrogen atom or a hydrocarbon portion, and where N is a monovalent cation selected from the group consisting of hydrogen ion, alkali metal ions, ammonium ...

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Номер записи: 26
27-06-2013 дата публикации

TETRAFLUOROETHYLENE COPOLYMER COMPOSITION FOR INJECTION MOLDING

Номер: US20130161873A1
Автор: NAMURA SHINICHI
Принадлежит: DUPONT-MITSUI FLUOROCHEMICALS CO LTD

A tetrafluoroethylene copolymer composition for injection molding having excellent resistance to chemical permeation and durability, comprised of polytetrafluoroethylene and copolymer of tetrafluoroethylene and perfluoro(alkyl vinyl ether). The composition has a melt flow rate of 12 g/10 min or greater, a flex life of 20,000 cycles or greater, and a nitrogen gas permeability of 0.8×10cm(STP).cm/cm.sec.cm Hg or less. 1. A method for molding a part comprising the steps of:{'sup': −10', '3', '2, 'a) providing a molding composition comprising polytetrafluoroethylene and copolymer of tetrafluoroethylene and perfluoro(alkyl vinyl ether), the composition having a melt flow rate of 12 g/10 min or greater, a flex life of 20,000 cycles or greater, and a nitrogen gas permeability of 0.8×10cm(STP).cm/cm.sec.cm Hg or less; and'}b) injection molding the composition to form the part.2. The method of wherein the flex life is 40 claim 1 ,000 cycles or greater.3. The method of wherein the flex life is 100 claim 1 ,000 cycles or greater.4. The method of wherein the nitrogen gas permeability is 0.7×10cm(STP).cm/cm.sec.cm Hg or less.5. The method of wherein the perfluoro(alkyl vinyl ether) content in the copolymer is 3 wt % or more.6. The method of wherein the perfluoro(alkyl vinyl ether) content in the copolymer is 5 wt % or more.7. The method of wherein the content of the perfluoro(alkyl vinyl ether) is 20 wt % or less.8. The method of wherein the content of the perfluoro(alkyl vinyl ether) is 15 wt % or less.9. The method of wherein the content of the perfluoro(alkyl vinyl ether) is 10 wt % or less.10. The method of wherein the melt flow rate of the copolymer is 2 g/10 min or greater.11. The method of wherein the melt flow rate of the copolymer is 4 g/10 min or greater.12. The method of wherein the melt flow rate of the copolymer is 70 g/10 min or less.13. The method of wherein the melt flow rate of the copolymer is 40 g/10 min or less.14. The method of wherein the melt flow rate of ...

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Номер записи: 27
27-06-2013 дата публикации

RESIN BLEND

Номер: US20130164535A1
Автор: CHOI Eun Joo, Hong Young Jun, KIM Hak Shin, RYU Jin Young, YOO Houng Sik
Принадлежит: LG CHEM, LTD.

Provided are a resin blend for forming a layer-separated structure, a pellet, a method of preparing a resin article using the same, and a resin article. The resin blend may include a first resin, and a second resin including a resin to which a fluorine or fluorine-substituted organic functional group is introduced and having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m. The resin blend can improve mechanical and surface characteristics of a resin article. Also, the resin blend can realize excellent contamination resistance of a resin article. Further, since coating or plating is not required for manufacturing a resin article, a manufacturing time and/or cost can be reduced, and productivity can be increased. 1. A resin blend for forming a layer-separate structure , comprising:a first resin; anda second resin comprising a resin to which a fluorine or fluorine-substituted organic functional group and having a difference in surface energy from the first resin at 25° C. of 0.1 to 35 mN/m.2. The resin blend according to claim 1 , wherein a difference in melt viscosity between the first resin and the second resin is 0.1 to 3000 pa*s at a shear rate of 100 to 1000sand a processing temperature of the resin blend.3. The resin blend according to claim 1 , wherein a difference in solubility parameter between the first resin and the second resin at 25° C. is 0.001 to 10.0 (J/cm).4. The resin blend according to claim 1 , wherein the second resin has a molecular weight distribution of 1 to 2.5.5. The resin blend according to claim 1 , wherein the second resin has a weight average molecular weight of 30 claim 1 ,000 to 200 claim 1 ,000.6. The resin blend according to claim 1 , wherein the fluorine-substituted organic functional group comprises at least one selected from the group consisting of a fluorine-substituted alkyl group having 1 to 30 carbon atoms and a fluorine-substituted hydroxyalkyl group having 1 to 30 carbon atoms.7. The resin blend ...

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Номер записи: 28
04-07-2013 дата публикации

ANTI-WEAR MATERIAL OF MODIFIED POLYTETRAFLUOROETHYLENE

Номер: US20130172487A1
Автор: Xiao Ping, Zhang Jianxin, Zhou Yunfeng
Принадлежит:

An anti-wear material of modified polytetrafluoroethylene resin is provided, which is prepared by mixing sufficiently a polyphenyl p-hydroxybenzoate polymer used as modifier with polytetrafluoroethylene resin in a certain weight ratio, and then carrying out cold-press sintering or hot-press sintering. The anti-wear material made from the modified polytetrafluoroethylene resin has very low average wear coefficient. 1. An anti-wear material of modified polytetrafluoroethylene resin , characterized in that it is prepared by mixing sufficiently a polyphenyl p-hydroxybenzoate polymer with polytetrafluoroethylene resin , and then carrying out cold-press sintering or hot-press sintering.2. The anti-wear material according to claim 1 , wherein the content of the polyphenyl p-hydroxybenzoate polymer is 15-50% by weight claim 1 , and the content of the polytetrafluoroethylene resin is 50-85% by weight.3. The anti-wear material according to claim 2 , wherein the content of the polyphenyl p-hydroxybenzoate polymer is 20-45% by weight claim 2 , and the content of the polytetrafluoroethylene resin is 55-80% by weight.4. The anti-wear material according to claim 3 , wherein the content of the polyphenyl p-hydroxybenzoate polymer is 25% by weight claim 3 , and the content of the polytetrafluoroethylene resin is 75% by weight. The invention relates to an anti-wear material, in particular, an anti-wear material of modified polytetrafluoroethylene resin.Currently, the anti-wear materials used in China mainly include phenolic resin, fiber glass, molybdenum disulfide and carbon fiber etc. However, the major deficiency of these materials is the severe grinding abrasion.Additionally, polytetrafluoroethylene is often modified in conventional methods by adding inorganic fillers such as fiber glass, graphite and molybdenum disulfide into it; however, due to high abrasion and short life span, these materials are apt to bring abrasion to the grinding mating-parts.The object of the invention is ...

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Номер записи: 29
18-07-2013 дата публикации

DRIPPING INHIBITOR AND RESIN COMPOUND

Номер: US20130184395A1
Автор: Kasai Shunji, Kato Taketo, KAWAHARA Kazuya, MIYAMOTO Masayoshi, Sawada Yasuhiko, TSUJI Masayuki, Yamanaka Taku, Yamauchi Mayumi
Принадлежит: DAIKIN INDUSTRIES, LTD.

Provided is a dripping inhibitor excellent in handling characteristics. The present invention provides a dripping inhibitor including a modified polytetrafluoroethylene, the inhibitor having an average particle size of 300 to 800 μm, an apparent density of 0.40 to 0.52 g/ml, a compression ratio of 1.20 or less, an aggregate disintegration degree with 50-sec vibration of 70% or more, a cylinder extrusion pressure at a reduction ratio 1500 of 80 MPa or less, and a standard specific gravity (SSG) of 2.140 to 2.230. 1. A dripping inhibitor comprising:a modified polytetrafluoroethylene,the inhibitor having an average particle size of 300 to 800 μm,an apparent density of 0.40 to 0.52 g/ml,a compression ratio of 1.20 or less,an aggregate disintegration degree with 50-sec vibration of 70% or more,a cylinder extrusion pressure at a reduction ratio of 1500 of 80 MPa or less, anda standard specific gravity (SSG) of 2.140 to 2.230.2. A resin compound comprising a dripping inhibitor according to and a thermoplastic resin.3. The resin compound according to claim 2 ,wherein the thermoplastic resin is at least one resin selected from the group consisting of polycarbonates, acrylonitrile-styrene resins, acrylonitrile-butadiene-styrene resins, (polycarbonate)/(acrylonitrile-butadiene-styrene) alloy resins, polybutylene terephthalate, polyethylene terephthalate, polyphenylene ether, polypropylene, and polystyrene.4. The resin compound according towherein the thermoplastic resin is a polycarbonate.5. The resin compound according to claim 2 , further comprising a flame retardant. The present invention relates to a dripping inhibitor and a resin compound.Conventional molded products of thermoplastic resin for applications such as electric appliances and OA equipment used at home, in offices, in plants, and the like mostly contain flammable thermoplastic resin. Therefore, molding materials of these products are generally required to contain a flame retardant for improving flame retardance ...

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Номер записи: 30
25-07-2013 дата публикации

TEXTURED RELEASE LINER CONTAINING AN ORGANIC PARTICULATE PHASE

Номер: US20130189387A1
Автор: Bravet David J.
Принадлежит:

A release liner can include one or more release layers. The release layer can include a thermoplastic polymer matrix. Moreover, the release layer can include an organic particulate phase. The organic particulate phase can be dispersed in the thermoplastic polymer matrix. In one embodiment, the organic particulate can include micronized PTFE particles. The PTFE particles can be present in the release liner such that the surface roughness Sof the release liner ranges from 0.1 microns to 1 micron. 1. A release liner comprising:at least one release layer, the release layer comprising a thermoplastic polymer matrix and an organic particulate phase in the thermoplastic polymer matrix.2. A mold assembly comprisinga cavity for receiving a workpiece; anda release liner disposed in the cavity, the release liner comprising at least one release layer, the release layer comprising a thermoplastic polymer matrix and an organic particulate phase in the thermoplastic polymer matrix.3. The release liner according to claim 1 , wherein the thermoplastic polymer matrix comprises a fluoropolymer.4. The release liner according to claim 3 , wherein the fluoropolymer is selected from the group consisting of poly(ethylene-tetrafluoroethylene) (ETFE) claim 3 , tetrafluoroethylene-perfluoropropylene (FEP) claim 3 , perfluoroalkoxy (PFA) claim 3 , polyethylenechlorotrifluoroethylene (ECTFE) claim 3 , polyvinylidene fluoride (PVDF) claim 3 , and any combination thereof.5. (canceled)6. (canceled)7. The release liner according to claim 3 , wherein the fluoropolymer comprises poly(ethylene-tetrafluoroethylene) (ETFE).8. (canceled)9. The release liner according to claim 1 , wherein the thermoplastic polymer matrix has a melting point of at least about 195° C.10. The release liner according to claim 9 , wherein the melting point is not greater than about 330° C.11. The release liner according to claim 1 , wherein the organic particulate phase comprises a non-melt-processible polymer.12. The release ...

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Номер записи: 31
08-08-2013 дата публикации

FILM AND METHOD OF MANUFACTURING THE SAME, LAMINATED FILM OR SHEET, AND LAMINATED BODY

Номер: US20130202847A1
Автор: Abe Yoshinori, Konokawa Yuhei
Принадлежит: MITSUBISHI RAYON CO., LTD.

Provided is a film having high crystallinity, transparency, and surface smoothness, a lamination of the film, a sheet of the film, and a laminated body. A film contains vinylidene fluoride-based resin (A) and acrylic-based resin (B). The film has at least one surface with arithmetic mean roughness of 0.1 to 20 nm. The at least one surface has crystal fusion heat of 18 to 40 J/g and a haze value of 3.5 or less, the crystal fusion heat being measured using a differential scanning calorimeter. 1. A film containing vinylidene fluoride-based resin (A) and acrylic-based resin (B) , wherein the film has at least one surface with arithmetic mean roughness of 0.1 to 20 nm ,the film having crystal fusion heat of 18 to 40 J/g and a haze value of 3.5 or less, and the crystal fusion heat being measured using a differential scanning calorimeter.2. A method of manufacturing a film containing vinylidene fluoride-based resin (A) and acrylic-based resin (B) , wherein the film has at least one surface with arithmetic mean roughness of 0.1 to 20 nm , the film having crystal fusion heat of 18 to 40 J/g and a haze value of 3.5 or less , and the crystal fusion heat being measured using a differential scanning calorimeter , comprising:melt-extruding a resin composition containing 75 to 95% by mass of the vinylidene fluoride-based resin (A) and 5 to 25% by mass of the acrylic-based resin (B),wherein the vinylidene fluoride-based resin (A) has a melt mass-flow rate equal to or more than 10 [g/10 minutes], andthe melt mass-flow rate is measured in compliance with JISK7210 under conditions of 230° C. and a load of 3.8 kg.3. A method of manufacturing a film , comprisingmelt-extruding a resin composition containing 75 to 95% by mass of vinylidene fluoride-based resin (A) and 5 to 25% by mass of acrylic-based resin (B), andsubsequently bringing the obtained melt extrudate into contact with at least one chill roll having the surface temperature of 35 to 75° C.,wherein the vinylidene fluoride-based ...

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Номер записи: 32
15-08-2013 дата публикации

Polycarbonate resin composition and formed product thereof

Номер: US20130210980A1
Автор: Toshiki Monden
Принадлежит: Mitsubishi Engineering Plastics Corp

In a polycarbonate resin composition containing a polycarbonate resin and a polycarbosilane compound, the use of the polycarbosilane compound modifies the surface properties of the polycarbonate resin composition without adversely affecting the intrinsic characteristics of the polycarbonate resin, such as transparency, heat resistance, and mechanical properties, e.g., impact resistance. A polycarbonate resin composition containing 100 parts by mass of a polycarbonate resin, 0.001 to 1 part by mass of a metal salt compound, and 0.005 to 5 parts by mass of a polycarbosilane compound has significantly improved flame resistance and high transparency and causes markedly reduced outgassing and mold fouling, without losing impact resistance and heat resistance.

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Номер записи: 33
05-09-2013 дата публикации

Matte textured powder monocoat coating compositions

Номер: US20130230696A1
Автор: Susan Margaret Miller, Susan Marie Sobek
Принадлежит: AKZO NOBEL COATINGS INTERNATIONAL BV

The present invention includes matte textured powder monocoat coating compositions that can be used to coat substrates, such as automobile bodies, and methods of coating such substrates. A powder coating composition may comprise a polyester resin, a UV light stabilizer, a matting agent, and a texturing additive, wherein the cured powder coating composition transmits less than about 0.1% of UV light at 290 nm and less than about 0.5% of UV light at 400 nm.

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Номер записи: 34
12-09-2013 дата публикации

POLYLACTIC ACID-BASED FILM OR SHEET

Номер: US20130236723A1
Автор: Endo Asuka, Hayashiuchi Rie, Ishiguro Shigeki, Sekiguchi Yuka, Senda Hiroki, Takahira Hitoshi, Yoshie Satomi
Принадлежит: NITTO DENKO CORPORATION

Disclosed is a polylactic acid-based film or sheet as a resin film or sheet including a polylactic acid (A). The film or sheet has a melt endotherm ΔHc′ of J/g or more, where ΔHc′ is of a region crystallized upon film formation and specified by following Expression (): 1. A polylactic acid-based film or sheet as a resin film or sheet comprising a polylactic acid (A) , wherein the polylactic acid-based film or sheet has a melt endotherm ΔHc′ of 10 J/g or more , where the melt endotherm ΔHc′ is of a region crystallized upon film formation and specified by Expression (1) expressed as follows:{'br': None, 'i': 'Hc′=ΔHm−ΔHc', 'Δ\u2003\u2003(1)'}wherein ΔHc represents an exotherm (J/g) associated with crystallization of the film or sheet in a temperature rise process after film formation; and ΔHm represents an endotherm (J/g) associated with subsequent melting of the film or sheet, where ΔHc and ΔHm are determined by DSC; andthe polylactic acid-based film or sheet has a tear strength of 2.5 N/mm or more both in a machine direction (MD) and in a transverse direction (TD), the tear strength determined according to “Paper-Determination of tearing resistance-Elmendorf tearing tester method” specified in JIS P 8116.2. The polylactic acid-based film or sheet of claim 1 , further comprising a fluoropolymer (B) in an amount of 0.5 to 15 parts by weight per 100 parts by weight of the polylactic acid (A).3. The polylactic acid-based film or sheet of claim 2 , wherein the fluoropolymer (B) is a tetrafluoroethylene polymer.4. The polylactic acid-based film or sheet of claim 1 , further comprising a crystallization promoter (C) in an amount of 0.1 to 15 parts by weight per 100 parts by weight of the polylactic acid (A).5. The polylactic acid-based film or sheet of claim 1 , further comprising an acidic-functional-group-modified olefinic polymer (D) in an amount of 0.1 to 10 parts by weight per 100 parts by weight of the polylactic acid (A) claim 1 , the acidic-functional-group- ...

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Номер записи: 35
26-09-2013 дата публикации

Polycarbonate resin composition and formed product thereof

Номер: US20130253109A1
Автор: Toshiki Monden
Принадлежит: Mitsubishi Engineering Plastics Corp

In a polycarbonate resin composition containing a polycarbonate resin and a polycarbosilane compound, the use of the polycarbosilane compound modifies the surface properties of the polycarbonate resin composition without adversely affecting the intrinsic characteristics of the polycarbonate resin, such as transparency, heat resistance, and mechanical properties, e.g., impact resistance. A polycarbonate resin composition containing 100 parts by mass of a polycarbonate resin, 0.001 to 1 part by mass of a metal salt compound, and 0.005 to 5 parts by mass of a polycarbosilane compound has significantly improved flame resistance and high transparency and causes markedly reduced outgassing and mold fouling, without losing impact resistance and heat resistance.

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Номер записи: 36
10-10-2013 дата публикации

Vinylidene fluoride copolymers

Номер: US20130264522A1
Автор: Alessio Marrani, Bradley Lane Kent, Giulio Brinati, Milena Stanga
Принадлежит: Solvay Specialty Polymers Italy SpA

The present invention pertains to a fluoropolymer [polymer (F)] comprising: recurring units derived from vinylidene fluoride (VDF), and from 0.01% to 5% by moles of recurring units derived from at least one (meth)acrylic monomer [monomer (MA)] having formula (I) here below: wherein: R 1 , R 2 and R 3 , equal to or different from each other, are independently selected from a hydrogen atom and a C 1 -C 3 hydrocarbon group, and R OH represents a hydrogen atom or a C 1 -C 5 hydrocarbon moiety comprising at least one hydroxyl group, said polymer (F) comprising end groups having formula —CF 2 H and/or —CF 2 CH 3 in an amount of at least 30 mmoles per Kg of vinylidene fluoride (VDF) recurring units. The invention also pertains to a process for the manufacture of said polymer (F) and to use of said polymer (F) as binders for the manufacture of electrodes or for the manufacture of membranes.

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Номер записи: 37
10-10-2013 дата публикации

Method of manufacturing pvdf-based polymer and method of manufacturing multilayered polymer actuator using the same

Номер: US20130264912A1
Автор: Jong-oh Kwon, Seung-tae Choi
Принадлежит: SAMSUNG ELECTRONICS CO LTD, UNIVERSITY OF ULSAN FOUNDATION FOR INDUSTRY COOPERATION

A method of manufacturing a polyvinylidene fluoride (PVDF)-based polymer film includes: applying a solution formed by dissolving a PVDF-based polymer in a solvent, on a first substrate; forming a PVDF-based polymer film by evaporating the solvent; bonding a support film on the PVDF-based polymer film; weakening an adhesive force between the PVDF-based polymer film and the first substrate; and separating the first substrate from the PVDF-based polymer film.

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Номер записи: 38
10-10-2013 дата публикации

POLYTETRAFLUOROETHYLENE MIXTURE

Номер: US20130267621A1
Автор: Chaen Shinichi, Inui Kunihiko, Kasai Shunji, Sawada Yasuhiko, Shibuya Yoshiyuki, Yamanaka Taku
Принадлежит: DAIKIN INDUSTRIES, LTD.

Provided is a material that can be easily biaxially oriented, homogeneously stretched even with a high draw ratio, and formed into a PTFE porous membrane with low pressure loss. The present invention relates to a polytetrafluoroethylene mixture comprising: a fibrillable modified polytetrafluoroethylene; and a fibrillable polytetrafluoroethylene homopolymer, the polytetrafluoroethylene homopolymer having strength at break of 25 N or higher. 1. A polytetrafluoroethylene mixture comprising:a fibrillable modified polytetrafluoroethylene; anda polytetrafluoroethylene homopolymer,the polytetrafluoroethylene homopolymer having strength at break of 25 N or higher.2. The polytetrafluoroethylene mixture according to claim 1 ,wherein the mass ratio of the modified polytetrafluoroethylene to the polytetrafluoroethylene homopolymer, that is, modified polytetrafluoroethylene/polytetrafluoroethylene homopolymer, is 5 to 99/95 to 1.3. The polytetrafluoroethylene mixture according to claim 1 ,wherein the modified polytetrafluoroethylene includes a modified monomer unit in an amount of 0.005 to 0.500 wt % of the weight of all monomer units.4. The polytetrafluoroethylene mixture according to claim 1 ,wherein the modified polytetrafluoroethylene has a cylinder extrusion pressure, at a reduction ratio of 1600, of 70 MPa or higher.5. The polytetrafluoroethylene mixture according towherein the modified polytetrafluoroethylene and the polytetrafluoroethylene homopolymer are obtainable by emulsion polymerization.6. The polytetrafluoroethylene mixture according to claim 1 , comprising:mixed powder obtainable by coagulation of an aqueous dispersion containing the modified polytetrafluoroethylene and the polytetrafluoroethylene homopolymer.7. A polytetrafluoroethylene porous membrane obtainable by stretching the polytetrafluoroethylene mixture according to . The present invention relates to a polytetrafluoroethylene mixture suitably used as a stretchable material for a polytetrafluoroethylene ...

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Номер записи: 39
17-10-2013 дата публикации

Composition of matter

Номер: US20130273255A1
Автор: Brynn M. Dooley, Carolyn P. MOORLAG, Qi Zhang, Yu Qi
Принадлежит: Xerox Corp

The present teachings disclose a composite. The composite includes a cellulose material dispersed in a fluoropolymer. The cellulose material is present in an amount of from about 1 weight percent to about to about 30 weight percent of the composition. A method of manufacturing a composite article and coating is described.

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Номер записи: 40
17-10-2013 дата публикации

Reinforced fluoropolymer composites comprising surface functionalized nanocrystalline cellulose

Номер: US20130274406A1
Автор: Brynn Mary Dooley, Carolyn Moorlag, Qi Zhang, Yu Qi
Принадлежит: Xerox Corp

A reinforced fluoropolymer composite is presented, which includes a fluoropolymer and a fluoro-functionalized nanocrystalline cellulose in which the outer circumference of the nanocrystalline cellulose has been functionalized with fluorinated substrates. The fluoro-functionalized nanocrystalline cellulose may be used to produce stable dispersions with fluoropolymers exhibiting enhanced adhesion between the nanocrystalline particles and fluoropolymer in a composite material, and decreased surface free energy of the cellulose surface.

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Номер записи: 41
24-10-2013 дата публикации

Polytetrafluoroethylene mixture

Номер: US20130281558A1
Автор: Kunihiko Inui, Makoto Ono, Shinichi Chaen, Shunji Kasai, Taku Yamanaka, Yasuhiko Sawada, Yoshiyuki Shibuya
Принадлежит: Daikin Industries Ltd

Provided is a material that can be easily biaxially oriented, homogeneously stretched even with a high draw ratio, and formed into a polytetrafluoroethylene porous membrane with low pressure loss. The present invention relates to a polytetrafluoroethylene mixture comprising: a modified polytetrafluoroethylene; and a fibrillable polytetrafluoroethylene homopolymer, the modified polytetrafluoroethylene having an extrusion pressure to a cylinder, at a reduction ratio of 1600, of 70 MPa or higher.

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Номер записи: 42
24-10-2013 дата публикации

DISPERSION SPUN FLUOROPOLYMER FIBER PREPARED FROM NON-MELT-PROCESSIBLE POLYTETRAFLUOROETHYLENE AND PERFLUOROALKOXY

Номер: US20130281579A1
Автор: Moon Chester Darryl, Nelson Arthur Russell
Принадлежит:

A dispersion spun fluoropolymer fiber prepared from non-melt-processible polytetrafluoroethylene particles and perfluoroalkoxy particles. 1. A method of making a fluoropolymer fiber exhibiting two melting points comprising ,forming a mixture of an aqueous dispersion of non-melt-processible polytetrafluoroethylene particles and perfluoroalkoxy particles with an aqueous solution of a matrix polymer,extruding the mixture into a coagulation bath and forming an intermediate fiber structure by coagulating the matrix polymer in the coagulation bath, andsintering the intermediate fiber structure to decompose the matrix polymer and coalesce the polytetrafluoroethylene particles and the perfluoroalkoxy particles into a blended fiber.2. The method according to wherein the ratio of polytetrafluoroethylene particles to perfluoroalkoxy particles in the mixture is about 3 to 1.3. The method according to wherein the two melting points include a first melting point attributable to the polytetrafluoroethylene particles and a second melting point attributable to the perfluoroalkoxy particles.4. A fluoropolymer fiber comprising a blend of non-melt-processible polytetrafluoroethylene particles and perfluoroalkoxy particles.5. The fluoropolymer fiber according to including up to about 25% perfluoroalkoxy particles and up to about 75% polytetrafluoroethylene particles.6. The fluoropolymer fiber according to having a maximum continuous use temperature of about 260° C.7. The fluoropolymer fiber according to having a tenacity of at least about 1.1 gpd.8. The fluoropolymer fiber according to having an elongation to break of about 60%.9. The fluoropolymer fiber according to having two different melting points.10. The fluoropolymer fiber according to wherein the two different melting points include a first melting point of about 301° C. and a second melting point of about 325° C.11. The fluoropolymer fiber according to having two different crystallization points.12. The fluoropolymer fiber ...

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Номер записи: 43
31-10-2013 дата публикации

Method of Coagulating An Amorphous Fluoropolymer Latex

Номер: US20130289188A1
Автор: Adair Eric W., Grootaert Werner M., Jing Naiyong, Kolb Brant U., Shefelbine Terri A.
Принадлежит: 3M INNOVATIVE PROPERTIES COMPANY

Described herein is a method of coagulating a fluoropolymer latex comprising: providing an amorphous fluoropolymer latex; providing unmodified inorganic nanoparticles; contacting the amorphous fluoropolymer latex with a sufficient amount of unmodified inorganic nanoparticles to coagulate the amorphous fluoropolymer. 1. A method of coagulating a fluoropolymer latex comprising:providing an amorphous fluoropolymer latex;providing unmodified inorganic nanoparticles;contacting the amorphous fluoropolymer latex with a sufficient amount of unmodified inorganic nanoparticles to coagulate the amorphous fluoropolymer latex.2. The method of claim 1 , wherein the method is substantially free of a traditional coagulating agent.3. The method of any one of claim 1 , wherein the amorphous fluoropolymer latex is perfluorinated.4. The method of claim 1 , wherein a p value is no more than 400 g mV.5. The method of claim 1 , wherein the amorphous fluoropolymer latex and the unmodified inorganic nanoparticles are both acidic.6. The method of claim 1 , wherein(a) the amorphous fluoropolymer latex is a hexafluoropropylene-vinylidene fluoride copolymer and the unmodified inorganic nanoparticles are alumina; (b) the amorphous fluoropolymer latex is a tetrafluoroethylene-perfluoromethyl vinylether copolymer and the unmodified inorganic nanoparticles are zinc oxide, or (c) the amorphous fluoropolymer latex is a tetrafluoroethylene-perfluoromethyl vinylether copolymer and the unmodified inorganic nanoparticles are zirconia.7. The method of claim 1 , wherein at least 3000 ppm of the unmodified inorganic nanoparticles is added.8. A fluoropolymer composite made according to the method described in .9. The fluoropolymer composite of claim 8 , wherein the fluoropolymer composite comprises less than 200 ppm of total metal ions.10. A cured article derived from the fluoropolymer composite of .11. The method of claim 1 , wherein the amorphous fluoropolymer latex is partially fluorinated.12. The method ...

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Номер записи: 44
31-10-2013 дата публикации

Thermoprocessable per(halo)fluoropolymer composition

Номер: US20130289189A1
Автор: Emanuele DI NICOLO, Giambattista Besana, Giuseppe Marchionni, Marco Avataneo, Pasqua Colaianna
Принадлежит: Solvay Specialty Polymers Italy SpA

The invention pertains to a thermoprocessable composition comprising: at least one thermoprocessable per(halo)fluoropolymer [polymer (A)]; at least one inorganic filler [filler (I)]; and at least one perfluoropolyether block copolymer [polymer (E)] comprising: A) one or more (per)fluoropolyoxyalkylene segment (chain R f ), that is to say a segment comprising recurring units having at least one catenary ether bond and at least one fluorocarbon moiety, and B) one or more polyalkylene segment (chain R a ) comprising recurring units of formula: —(CR 1 R 2 —CR 3 R 4 )— wherein R 1 , R 2 , R 3 , R 4 , equal to or different from each other, are selected from the group consisting of H, halogens (preferably F, Cl); C 1 -C 6 (hydro)carbon groups, optionally containing fluorine or other heteroatoms, preferably perfluoroalkyl or (per)fluorooxyalkyl.

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Номер записи: 45
31-10-2013 дата публикации

Lubricious medical tubing

Номер: US20130289531A1
Автор: Armando A. GRAUPERA, Marcos PAGAN, Patricia A. Davis-Lemessy
Принадлежит: Cordis Corp

A composition of a polyamide and PTFE produces a lubricious surface on extruded medical tubing. The small size of the PTFE powder when compounded with polyamide disperses uniformly and produces an intrinsically lubricious polymer. Such a composition can be useful in medical, intralumenal tubing.

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Номер записи: 46
14-11-2013 дата публикации

POLYMER COMPOSITION AND MOLDED PRODUCTS FORMED THEREOF

Номер: US20130303043A1
Автор: AKIBA Eiji, MIZUKAMI Yoshikatsu
Принадлежит:

The present invention provides a polymer composition including a first base polymer (A) containing at least a thermoplastic polymer, a second base polymer (B) containing at least a thermoplastic polymer and not having compatibility with the first base polymer (A), and an additive (C) containing at least a substance not having compatibility with any of the first base polymer (A) and the second base polymer (B), the additive (C) being in the form of liquid or slurry at the lower of a pyrolysis temperature of the first base polymer (A) and a pyrolysis temperature of the second base polymer (B). (A), (B) and (C) are phase-separated from each other, and interfaces each located between two of phases of (A), (B) and (C) contacting each other form three-dimensional continuous parallel interfaces. 1. A polymer composition comprising:a first base polymer (A) containing at least a thermoplastic polymer;a second base polymer (B) containing at least a thermoplastic polymer and not having compatibility with the first base polymer (A); andan additive (C) comprising a thermoplastic polymer or thermoplastic oligomer containing at least a substance not having compatibility with any of the first base polymer (A) and the second base polymer (B), the additive (C) being in the form of liquid or slurry at the lower of a pyrolysis temperature of the first base polymer (A) and a pyrolysis temperature of the second base polymer (B),wherein (A), (B) and (C) are phase-separated from each other, and interfaces each located between two of phases of (A), (B) and (C) contacting each other form three-dimensional continuous parallel interfaces,said three-dimensional continuous parallel interfaces referring to each of the opposite sides of a layer which separates two regions in a gyroid structure, said gyroid structure referring to an interconnected structure in which a continuous layer periodically extends throughout a space, dividing the space into two regions,wherein components (A), (B) and (C) ...

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Номер записи: 47
28-11-2013 дата публикации

Modifier for polyvinylidene fluoride, binder resin composition for battery, electrode for secondary battery and battery

Номер: US20130316234A1
Автор: Fumino Momose, Mitsufumi Nodono
Принадлежит: Mitsubishi Rayon Co Ltd

A modifier for polyvinylidene fluoride (PVDF), which improves the adhesion of PVDF to a metal, a binder resin composition for battery and a battery using the PVDF modifier are provided. The modifier for polyvinylidene fluoride herein is a modifier in which the peeling strength of a specific cured film to an aluminium foil is 20 g/cm or more, and the specific cured film is obtained from a mixture of 6 parts by mass of the modifier for polyvinylidene fluoride and 14 parts by mass of a polyvinylidene fluoride composition. The modifier preferably contains a macromonomer copolymer (X), obtained by polymerizing both a macromonomer (A) having unsaturated double bonds and a vinyl monomer (B) having polar groups. The macromonomer (A) is preferably a methacrylic acid ester-based macromonomer (A-1). The vinyl monomer (B) is preferably a methacrylate, and a fluoroalkyl methacrylate.

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Номер записи: 48
28-11-2013 дата публикации

Perfluoroelastomer gels

Номер: US20130317162A1
Автор: Marco Apostolo, Margherita Albano, Stefano Arrigoni
Принадлежит: SOLVAY SA

Perfluoroelastomeric gel having the following properties: appearance: transparent gelatinous solid; water content between 10% and 90% by weight; density between 1.1 and 2.1 g/cm 3 ; said gel satisfies the following test: dried in a stove at 90° C. until a constant weight gives curable perfluoroelastomers.

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Номер записи: 49
05-12-2013 дата публикации

Perfluorinated sulfonic acid polymer membrane having porous surface layer and method for preparing the same

Номер: US20130323496A1
Автор: Chang Won YOON, Dirk Henkensmeier, Eun Ae Cho, Hyoung-Juhn Kim, Jong Hyun Jang, Quoc Khanh DANG, Suk Woo Nam, Tae Hoon Lim
Принадлежит: Korea Advanced Institute of Science and Technology KAIST

Provided are a perfluorinated sulfonic acid polymer membrane having a porous surface layer, which includes a surface layer and a bottom layer present at the bottom of the surface layer, wherein the surface layer is a porous layer, and the bottom layer is non-porous dense layer, and a method for preparing the same through a solvent evaporation process.

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Номер записи: 50
12-12-2013 дата публикации

Method for producing fluorinated copolymer latex, fluorinated copolymer latex, binder for producing electrode, electrode mixture for storage battery device, and electrode for storage battery device

Номер: US20130330621A1
Автор: Hiroki Nagai, Mizuna Narumi, Takehiro Kose
Принадлежит: Asahi Glass Co Ltd

To produce a method for producing a fluorinated copolymer latex with a low content of metal components and with favorable stability of the latex even with a low content of an organic solvent. A method for producing a fluorinated copolymer latex, which comprises emulsion-polymerizing a monomer mixture containing tetrafluoroethylene and propylene in the presence of an aqueous medium, an anionic emulsifying agent and a thermally decomposable radical polymerization initiator at a polymerization temperature within a range of from 50° C. to 100° C., wherein the aqueous medium comprises water alone, or water and a water-soluble organic solvent, and the content of the water-soluble organic solvent is less than 1 part by mass per 100 parts by mass of water; and the amount of use of the anionic emulsifying agent is from 1.5 to 5.0 parts by mass per 100 parts by mass of the fluorinated copolymer to be formed.

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Номер записи: 51
19-12-2013 дата публикации

CONCENTRATED FLUOROPOLYMER DISPERSIONS STABILIZED WITH ANIONIC POLYELECTROLYTE DISPERSING AGENTS

Номер: US20130338298A1
Автор: CAVANAUGH ROBERT JOHN, JONES CLAY WOODWARD
Принадлежит: E.I. Du Pont De Nemours and Company

An aqueous fluoropolymer dispersion comprising fluoropolymer particles having an average particle size of about 10 to about 400 nm. The dispersion has a solids content of at least about 35 to about 70 wt % and comprises about 0.03 wt % to about 10 wt % anionic polyelectrolyte dispersing agent based on the weight of fluoropolymer solids. The dispersion has a Gel Time of at least about 100 seconds. 1. A process for reducing the fluorosurfactant content of and concentrating an aqueous fluorosurfactant-containing fluoropolymer dispersion comprising:stabilizing fluoropolymer dispersion comprising fluoropolymer particles having an average size of about 10 to about 400 nm and a solids content of about 15 to about 55 wt % with anionic polyelectrolyte dispersing agent;contacting said stabilized fluorosurfactant-containing aqueous fluoropolymer dispersion with an anion exchange resin to reduce fluorosurfactant content to a predetermined level;separating said anion exchange resin from said dispersion after the fluorosurfactant content has been reduced to produce a reduced-fluorosurfactant dispersion; andconcentrating said dispersion to at least about 35% by weight using a method which produces dispersion substantially free of nonionic surfactants.2. The process of wherein said concentrating is performed by adding acrylic polymer of acid content of 20% or more by weight to said reduced-fluorosurfactant dispersion in an amount of about 0.01 to about 1 wt % based on aqueous content of said dispersion and subjecting said dispersion to conditions causing said dispersion to separate into a lower phase high in fluoropolymer solids and an upper phase low in fluoropolymer solids and recovering said lower phase as concentrated reduced fluorosurfactant dispersion.3. The process of wherein the pH of said stabilized fluoropolymer dispersion is at least about 6 when said adding of acrylic polymer of acid content of 20% or more is performed.4. The process of wherein the pH of said stabilized ...

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Номер записи: 52
02-01-2014 дата публикации

METHOD FOR MANUFACTURING A MINERAL FIBRE-CONTAINING ELEMENT AND ELEMENT PRODUCTED BY THAT METHOD

Номер: US20140001676A1
Автор: Baets Martinus Adriana, Ghijzen Cor, Jorgensen Kristian Skovgaard
Принадлежит: ROCKWOOL INTERNATIONAL A/S

The invention relates to a method for manufacturing a mineral fibre-containing composite and the novel mineral fibre-containing element produced by that method. 1. A method for manufacturing a mineral fibre-containing element , said method comprising the steps of:providing mineral fibres in an amount of from 70 to less than 90 wt % of the total weight of starting materials in the form of a collected web,providing a binder in an amount of greater than 10 up to 30 wt % of the total weight of starting materials,subjecting the collected web of fibres to a disentanglement process, suspending the fibres in a primary air flow,mixing the binder with the mineral fibres before, during or after the disentanglement process to form a mixture of mineral fibres and binder,{'sup': 3', '3', '3', '3, 'collecting the mixture of mineral fibres and binder and pressing and curing the mixture to provide a consolidated composite with a density of from 120 kg/mto 1000 kg/m, such as 170 kg/mto 1000 kg/m.'}2. A method according to claim 1 , wherein the binder is selected from the phenol formaldehyde binder claim 1 , urea formaldehyde binder claim 1 , phenol urea formaldehyde binder claim 1 , melamine formaldehyde binder claim 1 , condensation resins claim 1 , acrylates and other latex compositions claim 1 , epoxy polymers claim 1 , sodium silicate and hotmelts of polyurethane claim 1 , polyethylene claim 1 , polypropylene and polytetrafluoroethylene polymers.3. A method according to claim 1 , wherein the disentanglement process comprises feeding the web from a duct with a lower relative air flow to a duct with a higher relative air flow.4. A method according to claim 1 , wherein the speed of the higher relative air flow is from 20 m/s to 150 m/s claim 1 , preferably from 30 m/s to 120 m/s claim 1 , more preferably from 40 m/s to 80 m/s claim 1 , most preferably from 50 m/s to 70 m/s.5. A method according to claim 1 , wherein the disentanglement process comprises feeding the collected web to ...

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Номер записи: 53
02-01-2014 дата публикации

High melting fluoropolymers

Номер: US20140005325A1
Автор: Caiping Lin, Ramin Amin-Sanayei
Принадлежит: Arkema Inc

The invention relates to a method for making copolymers of 2,3,3,3-tetrafluoropropene and vinylidene fluoride by an emulsion polymerization process having unexpectedly high melting temperatures, even at low crystallinity levels. The invention involves adjusting the microstructure of the copolymers through a controlled polymerization to obtain controlled microstructure copolymers with unique properties, including those with high melting temperature and low crystallinity.

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Номер записи: 54
02-01-2014 дата публикации

POLYMER PROCESSING SIMPLIFICATION

Номер: US20140005335A1
Автор: Pham Hang T., Samuels George J., Shafer Gregory J.
Принадлежит: HONEYWELL INTERNATIONAL INC.

A process for the preparation of a fluoroolefin polymer from an azeotropic mixture of monomers having a constant composition, the process including the step of: 123-. (canceled)24. A homopolymer prepared by a process comprising a step of: contacting in a reaction zone: an initiator; and an azeotropic mixture of at least two monomers comprising at least one fluoroolefin and , optionally , at least one ethylenically unsaturated comonomer capable of copolymerizing therewith; wherein said contacting is carried out at a temperature , pressure and length of time sufficient to produce said fluoroolefin polymer.25. A copolymer prepared by a process comprising a step of: contacting in a reaction zone: an initiator; and an azeotropic mixture of at least two monomers comprising at least one fluoroolefin and , optionally , at least one ethylenically unsaturated comonomer capable of copolymerizing therewith; wherein said contacting is carried out at a temperature , pressure and length of time sufficient to produce said fluoroolefin polymer.26. A terpolymer prepared by a process comprising a step of: contacting in a reaction zone: an initiator; and an azeotropic mixture of at least two monomers comprising at least one fluoroolefin and , optionally , at least one ethylenically unsaturated comonomer capable of copolymerizing therewith; wherein said contacting is carried out at a temperature , pressure and length of time sufficient to produce said fluoroolefin polymer.27. A polymer blend comprising at least two polymers selected from the group consisting of: a homopolymer , copolymer , and terpolymer prepared by a process comprising a step of: contacting in a reaction zone: an initiator; and an azeotropic mixture of at least two monomers comprising at least one fluoroolefin and , optionally , at least one ethylenically unsaturated comonomer capable of copolymerizing therewith; wherein said contacting is carried out at a temperature , pressure and length of time sufficient to produce ...

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Номер записи: 55
16-01-2014 дата публикации

HIGH GLASS TRANSITION TEMPERATURE THERMOSET AND METHOD OF MAKING THE SAME

Номер: US20140018475A1
Автор: Chakraborty Soma, Falkner Joshua C., Suresh Radhika
Принадлежит: BAKER HUGHES INCORPORATED

A process for preparing a nanocomposite includes combining a resin and silsesquioxane; introducing a curing agent to the resin and silsesquioxane to form a composition; and forming a reaction product of the composition to prepare the nanocomposite, wherein a total amount of the silsesquioxane and curing agent in the composition is from 1 wt % to 70 wt %, based on a weight of the composition. Additionally, a process for preparing an article includes combining an epoxy resin and silsesquioxane; introducing a curing agent to the epoxy resin and silsesquioxane to form a composition; and reacting the epoxy resin, silsesquioxane, and curing agent to form the nanocomposite, wherein a molar ratio of a number of moles of an epoxy functional group of the epoxy resin to the sum of the number of moles of the silsesquioxane and curing agent is from 1:1 to 100:1. An article includes the reaction product of the resin, silsesquioxane, and curing agent. 1. A process for preparing a nanocomposite , the process comprising:combining a resin and silsesquioxane;introducing a curing agent to the resin and silsesquioxane to form a composition; andforming a reaction product of the composition to prepare the nanocomposite,wherein a total amount of the silsesquioxane and curing agent in the composition is from 1 wt % to 70 wt %, based on a weight of the composition.2. The process of claim 1 , further comprising heating the composition from 75° C. to 250° C.3. The process of claim 1 , wherein the resin comprises an epoxy claim 1 , phenolic claim 1 , melamine claim 1 , urea claim 1 , polyurethane claim 1 , polysiloxane claim 1 , polyethylene claim 1 , polypropylene claim 1 , polybutadiene claim 1 , polyisoprene claim 1 , acrylic claim 1 , polyacrylamide claim 1 , polyacrylonitrile claim 1 , polyacrylic acid claim 1 , alkenylaromatic polymer claim 1 , polyamide claim 1 , polyester claim 1 , polycarbonate claim 1 , polysulfone claim 1 , polyimide claim 1 , polyarylene sulfide claim 1 , ...

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Номер записи: 56
30-01-2014 дата публикации

Blended Fluorosilicone Release Materials

Номер: US20140030514A1
Автор: Jayshree Seth, Marie A. Boulos, Michael A. Semonick, Ramesh C. Kumar, Zai-Ming Qiu
Принадлежит: 3M Innovative Properties Co

Blended release materials including a blend of a fluoro-functional silicone release polymer and a fluoropolymer are described. Exemplary fluoropolymers include fluoroolefin-based polymers and linear fluoropolymers including linear fluoroacryaltes. Articles including such release materials such as release liners, and adhesive articles, including silicone adhesive articles, are also described.

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Номер записи: 57
30-01-2014 дата публикации

Electrode binder composition, electrode slurry, electrode, and electrical storage device

Номер: US20140030592A1
Автор: Hiroyuki Miyauchi, Maki MAEGAWA, Tatsuaki Honda, Tatsuya Abe
Принадлежит: JSR Corp

An electrode binder composition is used to produce an electrode used for an electrical storage device, and includes (A) a polymer, (B) a compound represented by the following general formula (1), and (C) a liquid medium, the polymer (A) being fluorine-containing polymer particles or diene polymer particles, and a concentration of the compound (B) in the electrode binder composition being 5 to 500 ppm. wherein R 1 and R 2 independently represent a hydrogen atom, a halogen atom, or a monovalent alkyl group, and n is an integer from 0 to 5.

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Номер записи: 58
06-02-2014 дата публикации

BLENDS OF POLYPHENYLENE ETHER SULFONE AND SILICONE POLYESTER CARBONATE

Номер: US20140039103A1
Автор: GALLUCCI Robert Russell, Sybert Paul Dean
Принадлежит:

Disclosed herein is a composition comprising a polyphenylene ether sulfone and a resorcinol based silicone aryl polyester carbonate copolymer wherein greater than or equal to 50 mol % of copolymer repeating units are ester units derived from resorcinol, based on the total molar amount of all repeating units in the polymer and wherein the blend has less than 1 weight percent polycarbonate, based on the total weight of the composition, has FAR 25.853 peak heat release of less than 60 KW/mand time to peak heat release of greater than or equal to 120 seconds. 1. An article comprising a thermoplastic composition , wherein the article is a rail car interior article or an airplane interior article and the thermoplastic composition comprises 70 to 99 wt % of a polyphenylene ether sulfone and 1 to 30 wt % of a resorcinol based silicone aryl polyester carbonate copolymer , based on the total weight of the composition , wherein greater than or equal to 50 mol % of resorcinol based silicone aryl polyester carbonate copolymer repeating units are ester units derived from resorcinol , based on the total molar amount of all repeating units in the polymer and wherein the blend comprises less than 1 weight percent polycarbonate , based on the total weight of the composition , and the composition has a FAR 25.853 peak heat release of less than 50 KW/m , a time to peak heat release of greater than or equal to 120 seconds , and a melt volume viscosity rate (MVR) at 300° C. using a six minute equilibration time , with 6.7 Kg , as measured by ASTM D1238 , of greater than or equal to 2.0 cc/10 minutes.2. The article of claim 1 , wherein the composition has a multiaxial impact strength claim 1 , as measured by ASTM D3763 claim 1 , of greater than or equal to 70 Joules.3. The article of claim 1 , wherein greater than or equal to 80 mol % of copolymer repeating units are ester units derived from resorcinol claim 1 , based on the total molar amount of all repeating units in the polymer and ...

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Номер записи: 59
13-02-2014 дата публикации

HYDROPHILIZING AGENT COMPOSITION, HYDROPHILIZING METHOD, HYDROPHILIZED RESIN POROUS MATERIAL AND ITS PRODUCTION METHOD

Номер: US20140045956A1
Автор: Morizawa Yoshitomi, YAMAMOTO Hiromasa, Yamamoto Tatsuya
Принадлежит: Asahi Glass Company, Limited

A hydrophilizing agent composition comprising a copolymer having an alternating copolymerization ratio of repeating units represented by the following formula (1) and repeating units represented by the following formula (2) of at least 95%, and a solvent: 2. The hydrophilizing agent composition according to claim 1 , wherein the content of the alternating copolymer is from 0.01 to 10 mass % based on the total mass of the hydrophilizing agent composition.3. The hydrophilizing agent composition according to claim 1 , wherein the number average molecular weight of the alternating copolymer is from 3 claim 1 ,000 to 500 claim 1 ,000 claim 1 , and the molecular weight distribution (Mw/Mn) is from 1 to 5.4. The hydrophilizing agent composition according to claim 1 , wherein X is F claim 1 , and Y is F or Cl.5. The hydrophilizing agent composition according to claim 1 , wherein Z is OR.6. The hydrophilizing agent composition according to claim 1 , wherein R is a single bond claim 1 , O(CH)or (OCHCH)(wherein n is an integer of from 2 to 4 claim 1 , and m is an integer of from 1 to 4).7. The hydrophilizing agent composition according to claim 1 , wherein the amount of the solvent in the hydrophilizing agent composition is from 70 to 99.9 mass %.8. The hydrophilizing agent composition according to claim 7 , wherein the solvent contains an alcohol in a proportion of at least 70 mass %.9. A method for hydrophilizing a material claim 1 , which comprises treating a material to be treated by using the hydrophilizing agent composition as defined in .10. A method for producing a hydrophilized resin porous material claim 1 , which comprises impregnating a resin porous material with the hydrophilizing agent composition as defined in claim 1 , followed by drying.11. The method for producing a hydrophilized resin porous material according to claim 10 , wherein the resin constituting the resin porous material is a fluorinated resin.12. The method for producing a hydrophilized resin ...

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Номер записи: 60
20-02-2014 дата публикации

Method for making a bearing having a self-lubricating surface coating

Номер: US20140050859A1
Автор: Grant A. DREW, Richard Soelch, Thomas AULETTO
Принадлежит: New Hampshire Ball Bearings Inc

Methods for making a bearing are disclosed, wherein the bearing includes a substratum and a self-lubricating surface coating composition. The self-lubricating surface coating composition further includes at least one cured thermosetting acrylate and at least one phenolic resin. Methods includes the step of disposing the self-lubricating surface coating composition onto the substratum.

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Номер записи: 61
06-03-2014 дата публикации

POLYMER PREPARING METHOD AND POLYMER PREPARED BY THE SAME

Номер: US20140066573A1
Автор: KIM Su Jeong, Yoon Jeong Ae
Принадлежит: LG CHEM, LTD.

Provided is a polymer preparing method. By additionally inputting a catalytic reducing agent that reduces an inactivated metal complex compound catalyst to an activated metal complex compound catalyst, a polymer polymerized at a high conversion ratio of a monomer can be provided. 1. A polymer preparing method comprising:bringing a catalyst, a ligand, a halogenated polymer compound, and a polymeric monomer into contact with one another; andadditionally inputting a catalytic reducing agent.2. The method of claim 1 , wherein the catalytic reducing agent is additionally input when a conversion ratio of the polymeric monomer is 10% or more.3. The method of claim 1 , wherein the catalytic reducing agent is input in an amount of 10 parts to 2000 parts by weight with respect to 100 parts by weight of the catalyst.4. The method of claim 1 , wherein the catalyst includes one selected from the group consisting of Cu(0) claim 1 , Fe(0) claim 1 , CuTe claim 1 , CuSe claim 1 , CuS claim 1 , and CuO.5. The method of claim 4 , wherein the catalyst further includes a compound represented by the following Chemical Formula 1:{'br': None, 'sub': '2', 'Cu(II)X/L \u2003\u2003[Chemical Formula 1]'}where, in Chemical Formula 1, X represents a halogen element and L represents a ligand.6. The method of claim 1 , wherein the catalytic reducing agent is an organic reducing agent capable of donating electrons or an inorganic reducing agent capable of donating electrons.7. The method of claim 6 , wherein the organic reducing agent includes one or more selected from the group consisting of peroxides claim 6 , azo compounds claim 6 , ascorbic acid claim 6 , monosaccharide compounds claim 6 , phenol compounds claim 6 , amine compounds claim 6 , and hydrazine compounds.8. The method of claim 6 , wherein the inorganic reducing agent includes at least one selected from the group consisting of metal compounds or zerovalent metals.9. A polymer preparing method comprising:forming a mixture by mixing a ...

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Номер записи: 62
13-03-2014 дата публикации

FLUORINE-CONTAINING ELASTOMER COMPOSITION AND INSULATED WIRE

Номер: US20140069685A1
Автор: Nakahashi Masanobu
Принадлежит: HITACHI CABLE, LTD.

A fluorine-containing elastomer composition includes a fluorine-containing resin including a copolymer of tetrafluoroethylene and α-olefin having carbon number of 2 to 4. The copolymer of tetrafluoroethylene and α-olefin having carbon number of 2 to 4 is configured such that a peak integrated value of −132 ppm relative to a peak integrated value 10,000 of −110 to −125 ppm falls within the range of 0.3 to 2.0 in nuclear magnetic resonance analysis. 1. A fluorine-containing elastomer composition , comprising:a fluorine-containing resin comprising a copolymer of tetrafluoroethylene and α-olefin having carbon number of 2 to 4,wherein the copolymer of tetrafluoroethylene and α-olefin having carbon number of 2 to 4 is configured such that a peak integrated value of −132 ppm relative to a peak integrated value 10,000 of −110 to −125 ppm falls within the range of 0.3 to 2.0 in nuclear magnetic resonance analysis.2. The fluorine-containing elastomer composition according to claim 1 , wherein the fluorine-containing resin further contains at least one of a cross-linking agent claim 1 , an auxiliary cross-linking agent and an acid acceptor as an additive agent.3. The fluorine-containing elastomer composition according to claim 1 , wherein the copolymer of tetrafluoroethylene and α-olefin having carbon number of 2 to 4 comprises a tetrafluoroethylene-propylene based copolymer.4. An insulated wire claim 1 , comprising:a conductor; and{'claim-ref': {'@idref': 'CLM-00001', 'claim 1'}, 'an insulating layer that is formed by covering the outer periphery of the conductor with the fluorine-containing elastomer composition according to and causing the fluorine-containing elastomer composition to be cross-linked.'} The present application is based on Japanese patent application No. 2012-200386 filed on Sep. 12, 2011, the entire contents of which are incorporated herein by reference.1. Field of the InventionThis invention relates to a fluorine-containing elastomer composition and an ...

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Номер записи: 63
27-03-2014 дата публикации

High Purity Perfluoroelastomer Composites and A Process To Produce The Same

Номер: US20140088235A1
Автор: Hegenbarth Jack, Xu Ping
Принадлежит:

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. 115-. (canceled)16. An emulsion mixture comprisingi) a microemulsion of a composition comprising a crosslinkable fluoroelastomer terpolymer consisting essentially of tetrafluoroethylene (TFE), perfluoroalkyl vinyl ether (PAVE), and perfluorocyano vinyl ether (CNVE) monomer units, andii) a dispersion of silica.17. The emulsion of claim 16 , wherein CNVE is 8-CNVE.18. The emulsion mixture of claim 16 , wherein a crosslinkable fluoroelastomer composite formed from the emulsion mixture has less than about 3000 ppb metal content.19. The emulsion mixture of claim 16 , wherein a crosslinkable fluoroelastomer composite formed from the emulsion mixture has less than about 2000 ppb metal content.20. The emulsion mixture of claim 16 , wherein a crosslinkable fluoroelastomer composite formed from the emulsion mixture has less than about 1000 ppb metal content.21. The emulsion mixture of claim 16 , wherein a crosslinkable fluoroelastomer composite formed from the emulsion mixture has less than about 500 ppb metal content.22. The emulsion mixture of claim 16 , wherein a crosslinkable fluoroelastomer composite formed from the emulsion mixture has less than about 200 ppb metal content.23. An emulsion mixture of wherein the silica is dispersed in iso propanol (IPA).24. The emulsion mixture of wherein the silica is hydrophobic silica.25. The emulsion mixture of wherein the silica is hydrophobic silica.2657-. (canceled) Perfluoroelastomers have achieved outstanding commercial success and are used in a wide variety of applications in which severe environments ...

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Номер записи: 64
03-04-2014 дата публикации

Polycarbonate resin composition and formed product thereof

Номер: US20140094549A1
Автор: Toshiki Monden
Принадлежит: Mitsubishi Engineering Plastics Corp

In a polycarbonate resin composition containing a polycarbonate resin and a polycarbosilane compound, the use of the polycarbosilane compound modifies the surface properties of the polycarbonate resin composition without adversely affecting the intrinsic characteristics of the polycarbonate resin, such as transparency, heat resistance, and mechanical properties, e.g., impact resistance. A polycarbonate resin composition containing 100 parts by mass of a polycarbonate resin, 0.001 to 1 part by mass of a metal salt compound, and 0.005 to 5 parts by mass of a polycarbosilane compound has significantly improved flame resistance and high transparency and causes markedly reduced outgassing and mold fouling, without losing impact resistance and heat resistance.

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Номер записи: 65
03-01-2019 дата публикации

Apparatus and method for aerosol deposition of nanoparticles on a substrate

Номер: US20190001360A1
Автор: Jacques Lefebvre, Patrick Malenfant
Принадлежит: NATIONAL RESEARCH COUNCIL OF CANADA

Provided is an apparatus for aerosol deposition of nanoparticles on a substrate. The apparatus includes: an aerosol generator for generating an aerosol of micron-sized droplets, each droplet having a limited number of nanoparticles; and a deposition chamber for receiving the aerosol from the aerosol generator. The deposition chamber having an electrostatic field for attracting droplets in the aerosol to the substrate. The electrostatic field being substantially perpendicular to the substrate. The apparatus allows for films/networks of nanoparticles to be patterned on the substrate to sub-millimeter feature sizes, which allows the fabrication of transistor devices for printable electronics applications. Also provided are methods for depositing nanoparticles on a substrate and materials having networks of such nanoparticles.

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Номер записи: 66
01-01-2015 дата публикации

Grafted polymers as oleophobic low adhesion anti-wetting coatings for printhead applications

Номер: US20150002581A1
Автор: Chakkaravarthy Chidambareswarapattar, David J. Gervasi, Mandakini Kanungo, Matthew M. Kelly, Michael S. Roetker, Santokh S. Badesha, Varun Sambhy
Принадлежит: Xerox Corp

An inkjet printhead includes a front face having a polymer coating, the polymer coating including an oleophobic grafted polymer having a crosslinked fluoroelastomer and a perfluorinated polyether grafted to the crosslinked fluoroelastomer.

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Номер записи: 67
05-01-2017 дата публикации

FLUORINE RUBBER COMPOSITION, CROSSLINKED RUBBER MOLDED BODY AND METHOD FOR PRODUCING SAME

Номер: US20170002153A1
Автор: Osumi Naoki, Toda Sayaka
Принадлежит: NIPPON VALQUA INDUSTRIES, LTD.

Provided are: a fluorine rubber composition which contains a hydrogen atom-containing fluorine rubber and a hydrogen atom-containing fluororesin; a crosslinked rubber molded body which uses this fluorine rubber composition; and a method for producing this crosslinked rubber molded body. It is preferable that the hydrogen atom-containing fluororesin is composed of at least one compound that is selected from the group consisting of polyvinylidene fluorides, vinylidene fluoride-hexafluoropropylene copolymers, tetrafluoroethylene-ethylene copolymers and vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene copolymers. 1. A fluorine rubber composition comprising a hydrogen atom-containing fluorine rubber and a hydrogen atom-containing fluororesin.2. The fluorine rubber composition according to claim 1 , wherein a content of said hydrogen atom-containing fluororesin is 1 to 50 parts by weight relative to 100 parts by weight of said hydrogen atom-containing fluorine rubber.3. The fluorine rubber composition according to claim 1 , wherein the fluorine rubber composition further comprises an organic peroxide and a co-crosslinking agent.4. The fluorine rubber composition according to claim 1 , wherein said hydrogen atom-containing fluororesin is at least one compound selected from the group consisting of polyvinylidene fluoride claim 1 , a vinylidene fluoride-hexafluoropropylene copolymer claim 1 , a tetrafluoroethylene-ethylene copolymer and a vinylidene fluoride-hexafluoropropylene-tetrafluoroethylene copolymer.5. The fluorine rubber composition according to claim 1 , wherein the fluorine rubber composition contains no inorganic filler.6. A crosslinked rubber molded body comprising a crosslinked product of the fluorine rubber composition according to .7. The crosslinked rubber molded body according to claim 6 , wherein the crosslinked rubber molded body is a sealing material for semiconductor manufacturing devices.8. A method for producing a crosslinked rubber molded ...

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Номер записи: 68
02-01-2020 дата публикации

DISPERSANT ATTACHED POLYTETRAFLUOROETHYLENE PARTICLE, COMPOSITION, LAYERED MATERIAL, ELECTROPHOTOGRAPHIC PHOTORECEPTOR, PROCESS CARTRIDGE, AND IMAGE FORMING APPARATUS

Номер: US20200002525A1
Автор: Nakamura Takahiro, SUDA Shingo, YAMADA Wataru
Принадлежит: FUJI XEROX CO., LTD.

A dispersant attached polytetrafluoroethylene particle on whose surface a dispersant having a fluorine atom is attached has a content of perfluorooctanoic acid of from 0 ppb to 25 ppb with respect to the polytetrafluoroethylene particle, and a composition contains a polytetrafluoroethylene particle and a dispersant having a fluorine atom in which a content of perfluorooctanoic acid is from 0 ppb to 25 ppb with respect to the polytetrafluoroethylene particle. 1. A dispersant attached polytetrafluoroethylene particle on whose surface a dispersant having a fluorine atom is attached , wherein a content of perfluorooctanoic acid is from 0 ppb to 25 ppb with respect to the polytetrafluoroethylene particle.2. The dispersant attached polytetrafluoroethylene particle as claimed in claim 1 , which has an average particle diameter of from 0.2 μm to 4.5 μm.3. The dispersant attached polytetrafluoroethylene particle as claimed in claim 1 , wherein the dispersant having a fluorine atom is a polymer obtained by homopolymerization or copolymerization of a polymerizable compound having a fluorinated alkyl group.5. The dispersant attached polytetrafluoroethylene particle as claimed in claim 1 , wherein a content of the dispersant having a fluorine atom is from 0.5% by weight to 10% by weight with respect to the polytetrafluomethylene particle.6. The dispersant attached polytetrafluomethylene particle as claimed in claim 5 , wherein the content of the dispersant having a fluorine atom is from 1% by weight to 7% by weight with respect to the polytetrafluoroethylene particle.7. A composition comprising a polytetrafluoroethylene particle and a dispersant having a fluorine atom claim 5 , wherein a content of perfluorooctanoic acid is from 0 ppb to 25 ppb with respect to the polytetrafluoroethylene particle.8. The composition as claimed in claim 7 , wherein an average particle diameter of the polytetrafluoroethylene particle is from 0.2 μm to 4.5 μm.9. The composition as claimed in claim 7 ...

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Номер записи: 69
03-01-2019 дата публикации

ELASTOMER MATERIAL FOR MEDICAL DEVICES AND ELASTOMER MOLDED BODY FOR MEDICAL DEVICES

Номер: US20190002682A1
Автор: TOMIZUKA Kazuhito
Принадлежит: OLYMPUS CORPORATION

This elastomer material for medical devices contains: a first fluorine-based elastomer that is a ternary copolymer comprising three kinds of monomers A, B and C; and a second fluorine-based elastomer that is a ternary copolymer comprising the monomers A and B and a monomer D which is different from any one of the monomers A, B and C. The monomer C and the monomer D have side chains that have structures different from each other. 1. An elastomer material for medical devices comprising:a first fluorine-based elastomer which is a ternary copolymer having three kinds of monomers A, B and C; anda second fluorine-based elastomer which is a ternary copolymer having the monomers A and B and a monomer D different from any one of the monomers A, B and C,wherein the monomer A is vinylidene fluoride, the monomer B is tetrafluoroethylene, the monomer C is hexafluoropropylene, and the monomer D is perfluoroalkyl vinyl ether.2. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a crosslinking aid is contained in an amount of not more than 15 parts by weight and not zero.3. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a filler is contained in an amount of not more than 50 parts by weight and not zero.4. The elastomer material for medical devices according to claim 1 , wherein claim 1 ,when total content of the first fluorine-based elastomer and the second fluorine-based elastomer is 100 parts by weight, a third fluorine-based elastomer whose number average molecular weight is 5000 or less and having no crosslinking reactive group is contained in an amount of not more than 50 parts by weight and not zero.5. An elastomer molded body for medical devices comprising:a first ...

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Номер записи: 70
02-01-2020 дата публикации

Plastic optical fiber, plastic optical fiber cable, wire harness and vehicle

Номер: US20200003932A1
Автор: Hideki Kihara, Noboru Fujikura
Принадлежит: Mitsubishi Chemical Corp

There is provided a plastic optical fiber including a core and at least one layer of a clad formed on an outer circumferential surface of the core, wherein a transmission band is 100 MHz or wider, as measured under conditions of a wavelength of 650 nm and a launch NA=0.65; and a transmission loss is 350 dB/km or less, as measured under conditions of a wavelength of 650 nm and a launch NA=0.1, after exposure to an environment of a temperature of 105° C. for 1000 hours.

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Номер записи: 71
13-01-2022 дата публикации

RESIN COMPOSITION AND MOLDED ARTICLE

Номер: US20220010131A1
Автор: KONO Hideki, Nakanishi Koji, SEKI Toyomitsu
Принадлежит: DAIKIN INDUSTRIES, LTD.

A resin composition containing an aromatic polyether ketone resin (I); and a fluorine-containing copolymer (II), the resin composition satisfying an r2/r1 ratio of 1.60 or lower, wherein r1 is an average dispersed particle size of the fluorine-containing copolymer (II) and r2 is an average dispersed particle size of the fluorine-containing copolymer (II) after melt flow rate measurement at 380° C. and a load of 5000 g and with a preheating time of five minutes in conformity with ASTM D1238. Also disclosed is a pellet obtained by molding the resin composition and a molded article formed from the resin composition or the pellet. 2. The resin composition according to claim 1 ,wherein the aromatic polyether ketone resin (I) has a melting point of 300° C. to 380° C.3. The resin composition according to claim 1 ,wherein the aromatic polyether ketone resin (I) has a glass transition temperature of 130° C. to 220° C.4. The resin composition according to claim 1 ,wherein the fluorine-containing copolymer (II) has a melting point of 200° C. to 323° C.5. The resin composition according to claim 1 , {'br': None, 'sub': '2', 'sup': '1', 'CF═CF—Rf\u2003\u2003(1)'}, 'wherein the fluorine-containing copolymer (II) is a copolymer of tetrafluoroethylene and a perfluoroethylenic unsaturated compound represented by the following formula (1){'sup': 1', '2', '2, 'sub': '3', 'wherein Rfis —CFor —ORf, where Rfis a C1-C5 perfluoroalkyl group.'}6. The resin composition according to claim 1 ,wherein the aromatic polyether ketone resin (I) and the fluorine-containing copolymer (II) are present in a mass ratio (I):(II) of 99:1 to 30:70.7. The resin composition according to claim 1 , further comprising a fibrous filler (III).8. A pellet obtained by molding the resin composition according to .9. A molded article formed from the resin composition according to .10. A molded article formed from the pellet according to . This application is a Rule 53(b) Continuation of International Application No. ...

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Номер записи: 72
03-01-2019 дата публикации

ION CHANNEL PRESSURE SENSOR AND MANUFACTURING METHOD OF THE SAME

Номер: US20190003911A1
Автор: CHUN Kyoung-Yong, HAN Chang-Soo
Принадлежит:

Provided are an ion channel pressure sensor and a manufacturing method of the same. The ion channel pressure sensor includes: a bottom storage including a bottom storage space in which an electrolyte is stored; a top storage including a top storage space in which an electrolyte is stored; a membrane disposed between the bottom storage and the top storage, the membrane including a plurality of through-holes; a plate-shaped bottom support disposed on a bottom surface of the bottom storage; a plate-shaped top support disposed on a top surface of the top storage; a power supply configured to apply a voltage between the electrolyte stored in the bottom storage space and the electrolyte stored in the top storage space; and an ammeter configured to detect a current flowing to the power supply. 1. An ion channel pressure sensor comprising:a bottom storage including a bottom storage space in which an electrolyte is stored;a top storage including a top storage space in which an electrolyte is stored;a membrane disposed between the bottom storage and the top storage, the membrane including a plurality of through-holes;a plate-shaped bottom support disposed on a bottom surface of the bottom storage;a plate-shaped top support disposed on a top surface of the top storage;a power supply configured to apply a voltage between the electrolyte stored in the bottom storage space and the electrolyte stored in the top storage space; andan ammeter configured to detect a current flowing to the power supply,wherein:the top support is defined by an external pressure,the bottom storage space is vertically aligned with the top storage space, andthe electrolyte is allowed to move through the through-hole of the membrane by the external pressure.2. The ion channel pressure sensor as set forth in claim 1 , wherein:the electrolyte includes polyaniline (PANi).3. The ion channel pressure sensor as set forth in claim 1 , wherein:the top support includes a polyvinylidene fluoride (PVDF) film, a mica ...

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Номер записи: 73
27-01-2022 дата публикации

FLUORO-THERMOPLASTIC ELASTOMER BLENDS

Номер: US20220025166A1
Автор: "OBrien Gregory S.", CAPELOT Mathieu Y., Hauser Adam W., Mehlmann Florence
Принадлежит:

Disclosed is a thermoplastic elastomer composition comprising a blend of at least two fluoropolymers. The first fluoropolymer has from 0 to 30 weight percent of a monomer J selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof. The second fluoropolymer has at least 30 weight percent, preferably at least 35 weight percent, of monomer T selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof. 1. A fluoropolymer composition comprising a fluoropolymer blend comprising fluoropolymer S and fluoropolymer H wherein:H comprises from 0 to 30 weight percent, of a monomer J selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof;S comprises at least 35 weight percent, of monomer T selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof, andwherein, the amount of H is from 20 to 80 weight % of the composition, and the amount of S is from 80 to 20 weight % of the composition.2. A fluoropolymer composition comprising a fluoropolymer blend comprising fluoropolymer S and fluoropolymer H wherein:H comprises from 0 to 30 weight percent, of a monomer J selected from the group consisting of hexafluoropropene (HFP), fluorinated or perfluorinated vinyl ethers, 2,3,3,3-tetrafluoropropene, trifluoropropene, 1-chloro-3,3,3-trifluoro propene or combinations thereof;S comprises at least 30 weight percent, of monomer T selected from the group consisting of hexafluoropropene (HFP), ...

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Номер записи: 74
11-01-2018 дата публикации

Flame-retardant molding compounds containing siloxane-containing polycarbonate block co-condensate

Номер: US20180009986A1
Автор: Alexander Meyer, Klaus Horn, Timo Kuhlmann, Ulrich Liesenfelder
Принадлежит: Covestro Deutschland AG

The present invention relates to flame-retardant moulding compositions comprising siloxane-containing polycarbonate block cocondensate, and also to a process for the production of these moulding compositions. The invention further relates to the use of these flame-retardant moulding compositions in injection-moulding and extrusion applications.

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Номер записи: 75
09-01-2020 дата публикации

POLYOLEFIN ELASTOMER COMPOSITE AND FOAMED ELASTOMER

Номер: US20200010656A1
Автор: CHENG WEN-WEI, HUANG Ting-Ti, TSOU Chiu-Peng
Принадлежит:

A polyolefin elastomer composite includes a copolymer, an unsaturated aliphatic polyolefin, an organic peroxide, and an metallic acrylate. The copolymer is an ethylene copolymer, an olefin block copolymer, or a combination thereof. The usage ratio of the unsaturated aliphatic polyolefin and the copolymer is 1:3 to 3:1. Based on the total amount of the unsaturated aliphatic polyolefin and the copolymer as 100 parts by weight, the usage of the organic peroxide is 0.1 to 1 part by weight and the usage of the metallic acrylate is 0.1 to 5 parts by weight. The polyolefin elastomer composite can produce a foamed elastomer having high rebound resilience and low compression set. 1. A polyolefin elastomer composite comprising:a copolymer including an ethylene copolymer, a polyolefin block copolymer, or a combination thereof;an unsaturated aliphatic polyolefin whose weight ratio relative to the copolymer is from 1:3 to 3:1;an organic peroxide whose usage ranges from 0.1 phr to 1 phr based on the total amount of the unsaturated aliphatic polyolefin and the copolymer as 100 phr;a metallic acrylate whose amount usage ranges from 0.1 phr to 5 phr based on the total amount of the unsaturated aliphatic polyolefin and the copolymer as 100 phr.2. The polyolefin elastomer composite as claimed in claim 1 , wherein the ethylene copolymer is selected from the group consisting of an ethylene/vinyl acetate copolymer claim 1 , an ethylene/octene copolymer claim 1 , a polyethylene claim 1 , an ethylene/alpha-olefin copolymer claim 1 , an ethylene/alpha-olefin non-conjugated diene copolymer claim 1 , an ethylene/acrylic copolymer claim 1 , an ethylene/methyl acrylic copolymer claim 1 , an ethylene/methyl acrylate copolymer claim 1 , an ethylene/methyl methacrylate copolymer claim 1 , an ethylene/ethyl acrylate copolymer claim 1 , an ethylene/ethyl methacrylate copolymer claim 1 , an ethylene/butyl acrylate copolymer claim 1 , an ethylene/butyl methacrylate copolymer claim 1 , and any ...

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Номер записи: 76
09-01-2020 дата публикации

Resin composition, fluorine-based film, fluorine-based laminated film, and laminated molded body

Номер: US20200010660A1
Автор: Junichi Abe, Koichiro Sanefuji, Megumi HIGASHIKAWA
Принадлежит: Mitsubishi Chemical Corp

Provided is a resin composition including 40 to 99% by mass of a fluorine-based resin (A), and 1 to 60% by mass of a matting agent (B), in which a swell ratio as measured under the conditions of a measurement temperature of 230° C., an ambient temperature of 23° C., and a shear rate of 96 (1/sec) is 0.90 to 2.00.

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Номер записи: 77
09-01-2020 дата публикации

DIFFUSIVE POLYCARBONATE COMPOSITIONS WITH ENHANCED FLAME RETARDANT PROPERTIES, LUMINOUS EFFICIENCY AND BEAM ANGLE OF OPTICAL COMPONENTS

Номер: US20200010669A1
Автор: Cheng Yingjun, Ding Yu, HUANG Guangde, Li Huihui, Shen Miao, TANG Haowei, Yang Jian
Принадлежит: Sabic Global Technologies B.V.

The disclosure concerns optical components comprising a polycarbonate-containing composition, the polycarbonate-containing composition comprising: about 95 wt % to about 99.6 wt % polycarbonate polymer; about 0.25 wt % to about 1 wt % silicon resin; about 0.05 wt % to about 0.5 wt % flame retardant; and about 0.1 wt % to about 0.5 wt % styrene-acrylonitrile copolymer coated polytetrafluoroethylene, wherein the polycarbonate-containing composition exhibits a VO rating at 0.75 mm as determined by the UL94 Flammability test, and wherein the total wt % of all components of the polycarbonate-containing composition does not exceed 100 wt %. 1. An optical component comprising a polycarbonate-containing composition , the polycarbonate-containing composition comprising:about 95 wt % to about 99.6 wt % polycarbonate polymer;about 0.25 wt % to about 1 wt % silicon resin;about 0.05 wt % to about 0.5 wt % flame retardant; andabout 0.1 wt % to about 0.5 wt % styrene-acrylonitrile copolymer coated polytetrafluoroethylene,wherein the polycarbonate-containing composition exhibits a VO rating at 0.75 mm as determined by the UL94 Flammability test, andwherein the total wt % of all components of the polycarbonate-containing composition does not exceed 100 wt %.2. The optical component of claim 1 , wherein at least a portion of the polycarbonate is a branched polycarbonate.3. The optical component of claim 2 , wherein the branched polycarbonate is produced from reagents comprising bisphenol A and 1 claim 2 ,1 claim 2 ,1-tris-(4-hydroxyphenylethane).4. The optical component of claim 1 , wherein the polycarbonate-containing composition comprises about 10 wt % to about 90 wt % branched polycarbonate.5. The optical component of claim 1 , additionally comprising one or more of anti-oxidant claim 1 , UV stabilizer claim 1 , and mold release agent.6. The optical component of claim 1 , wherein the optical component is formed by injection molding.7. The optical component of claim 1 , wherein the ...

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Номер записи: 78
09-01-2020 дата публикации

Polycarbonate-polyorganosiloxane copolymer, flame-retardant polycarbonate resin composition including same, and molded product thereof

Номер: US20200010683A1
Автор: Takafumi Akimoto, Tomoko Abe, Yasuhiro Ishikawa
Принадлежит: Idemitsu Kosan Co Ltd

wherein wM1 represents the average content of the polyorganosiloxane blocks (A-2) in polycarbonate-polyorganosiloxane copolymers each having a molecular weight determined by using a polycarbonate as a conversion reference of from 56,000 or more to 200,000 or less among polycarbonate-polyorganosiloxane copolymers obtained through the separation of the polycarbonate-polyorganosiloxane copolymer by gel permeation chromatography.

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Номер записи: 79
27-01-2022 дата публикации

CONDUCTIVE POLYMER ELECTROLYTE FOR BATTERIES

Номер: US20220029198A1
Автор: Hidalgo Manuel, Plee Dominique
Принадлежит: Arkema France

The present invention relates to a solid polymer electrolyte in the form of an organic-organic composite material, intended to be used in a lithium-polymer battery. The invention also relates to a process for manufacturing such an electrolyte. This electrolyte is notably intended for making a lithium-polymer battery or an “all-solid” battery, notably as regards the ion-conducting separator. The invention thus also relates to a battery separator comprising such a polymer electrolyte, to processes for manufacturing same and to the battery incorporating this electrolyte. 1. A solid polymer electrolyte for a battery operating at a temperature below 60° C. , said electrolyte comprising:a thermoplastic polymer in the form of a porous film, said polymer having a molecular mass of greater than 50,000 g/mol,an oligomer impregnating said thermoplastic polymer film, this oligomer being an ion conductor, andone or more lithium salts.2. The solid polymer electrolyte as claimed in claim 1 , in which the thermoplastic polymer is a compound of general formula: —[(CRR—CRR)—]in which R claim 1 , R claim 1 , Rand Rare independently H claim 1 , F claim 1 , CH claim 1 , Cl claim 1 , Br or CF claim 1 , at least one of these radicals being F or CF.3. The solid polymer electrolyte as claimed in claim 1 , in which the thermoplastic polymer is a fluoropolymer chosen from poly(vinylidene fluoride-co-hexafluoropropene) claim 1 , poly(vinylidene fluoride-co-trifluoroethylene) claim 1 , poly(vinylidene fluoride-ter-trifluoroethylene-ter-chlorotrifluoroethylene) and poly(vinylidene fluoride-ter-trifluoroethylene-ter-1 claim 1 ,1-chlorofluoroethylene).4. The solid polymer electrolyte as claimed in claim 1 , in which the thermoplastic polymer is a P(VDF-TrFE) copolymer in which the VDF/TrFE mole ratio of the structural units ranges from 9 to 0.1.5. The solid polymer electrolyte as claimed in claim 1 , in which the thermoplastic polymer is a P(VDF-TrFE-CTFE) terpolymer in which the molar content of ...

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Номер записи: 80
03-02-2022 дата публикации

CURABLE FLUORINE-BASED ELASTOMER COMPOSITE AND CURED PRODUCT THEREOF

Номер: US20220033634A1
Автор: Aoki Tamon, Suzuki Yuta
Принадлежит:

A curable fluorine-based elastomer composite containing a curable fluorine-based polymer including a curable fluorine-based elastomer including a copolymerization unit having a curing site; a crosslinking agent that reacts with a curing site to form a crosslinking unit in the elastomer; and a crosslinking aid including an organic onium salt, in which the total content of the crosslinking agent and the crosslinking aid is about 0.5 parts by mass or more and about 3 parts by mass or less with reference to 100 parts by mass of the curable fluorine-based polymer, and the ratio between the crosslinking agent and the crosslinking aid is from about 2:8 to about 7:3. 1. A curable fluorine-based elastomer composite , comprising:a curable fluorine-based polymer comprising a curable fluorine-based elastomer including a copolymerization unit having a curing site;a crosslinking agent that reacts with the curing site of the elastomer to form a crosslinking unit in the elastomer; anda crosslinking aid including an organic onium salt, wherein the organic onium salt is a salt of (trifluoromethyl)benzyl alcohol and tetramethyl ammonium or tetrabutyl phosphonium, and wherein the total content of the crosslinking agent and the crosslinking aid is about 0.5 parts by mass or more and about 3 parts by mass or less with reference to 100 parts by mass of the curable fluorine-based polymer, and the ratio between the crosslinking agent and the crosslinking aid is from about 2:8 to about 7:3.2. The composite of claim 1 , wherein the curable fluorine-based elastomer composite further comprises a curable fluorine-based plastic including a copolymerization unit having a curing site claim 1 , the curing site of the curable fluorine-based plastic is a site that reacts with the crosslinking agent to form a crosslinked unit in the plastic.3. The composite of claim 1 , wherein the curing site of the elastomer is a cyano group.4. The composite of claim 1 , wherein the curable fluorine-based elastomer ...

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Номер записи: 81
03-02-2022 дата публикации

LATEX BLENDS OF AMORPHOUS PERFLUORINATED POLYMERS AND ARTICLES DERIVED THEREFROM

Номер: US20220033635A1
Автор: Aoki Tamon, Fukushi Tatsuo, Hintzer Klaus, Jochum Florian D., Scott Peter J., Suzuki Yuta, Vowinkel Steffen, Weilandt Karl D.
Принадлежит:

Described herein is a latex blend comprising (i) an amorphous perfluoropolymer and (ii) an aqueous dispersion of semi crystalline fluoropolymer particles, wherein the particles comprise a TFE homopolymer or a TFE copolymer comprising no more than 1 wt % of a second fluorinated monomer, wherein the semi crystalline fluoropolymer particles (a) have an MFI (372° C. with 2.16 kg) of less than 50 g/10 min or (b) are not melt processible and have an SSG of less than 2.190, wherein the semi crystalline fluoropolymer particles have an average diameter greater than 100 nm. 1. A latex blend comprising an amorphous perfluoropolymer latex and an aqueous dispersion of semi crystalline fluoropolymer particles , wherein the semi crystalline fluoropolymer particles comprise a tetrafluoroethylene copolymer comprising no more than 1 wt % of at least one additional fluorinated monomer , wherein the semi crystalline fluoropolymer particles (i) have a melt flow index (372° C. with 2.16 kg) of less than 50 g/10 min or (ii) are not melt processible and have an standard specific gravity of less than 2.200 , and wherein the semi crystalline fluoropolymer particles have an average diameter greater than 100 nm.2. The latex blend of claim 1 , wherein latex blend claim 1 , after agglomeration and drying claim 1 , has a melting temperature of at least 310° C. and at most 329° C.3. The latex blend of any one of the previous claims claim 1 , wherein latex blend claim 1 , after agglomeration and drying claim 1 , has a melting temperature of greater than 310° C. claim 1 , and less than 323° C.4. The latex blend of any one of the previous claims claim 1 , wherein latex blend claim 1 , after agglomeration and drying claim 1 , has an inflection point temperature of at least 500° C. and at most 510° C.5. The latex blend of any one of the previous claims claim 1 , wherein latex blend claim 1 , after agglomeration and drying claim 1 , has at least one recrystallization temperature less than 310° C.7. The ...

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Номер записи: 82
03-02-2022 дата публикации

MELT PROCESSIBLE FLUORORESIN COMPOSITION AND INJECTION MOLDED ARTICLE FORMED FROM SAME

Номер: US20220033636A1
Автор: KITAGAWA Toshiki, NISHIMURA Takahiro
Принадлежит:

Provided is a melt processible fluororesin composition for injection molding of articles that has melt flow that facilitates injection molding, that can enhance strength of a fluororesin weld line area in an injection molded article, and that achieves excellent release from a mold. The fluororesin composition includes two or more types of melt processible fluororesins having different melt flow rates; one of the melt processible fluororesins being a high melt flow rate melt processible fluororesin having a melt flow rate of 35 g/10 min or greater, and another being a low melt flow rate melt processible fluororesin having a melt flow rate of 10 g/10 min or greater but less than 35 g/10 min; and wherein the ratio of the melt flow rate (MFRa) of the high MFR melt processible fluororesin to the melt flow rate (MFRb) of the low MFR melt processible fluororesin (MFRa/MFRb) is from 1 to 10. 1. A melt processible fluororesin composition comprising:a mixture of two or more types of melt processible fluororesins having melt flow rates that are different from each other;one of the two or more types of melt processible fluororesins being a high melt flow rate melt processible fluororesin having a melt flow rate of 35 g/10 min or greater, and another being a low melt flow rate melt processible fluororesin having a melt flow rate of 10 g/10 min or greater but less than 35 g/10 min, and whereinthe ratio of the melt flow rate (MFRa) of the high melt flow rate melt processible fluororesin to the melt flow rate (MFRb) of the low melt flow rate melt processible fluororesin (MFRa/MFRb) is greater than 1 but less than or equal to 10, andwherein the high melt flow rate melt processible fluororesin and the low melt flow rate melt processible fluororesin are tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymers (PFA).2. The melt processible fluororesin composition according to claim 1 , wherein said melt processible fluororesin composition has a melt flow rate of from 10 to 100 g/10 ...

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Номер записи: 83
15-01-2015 дата публикации

Fluororubber composition

Номер: US20150017364A1
Автор: Akinori Ueda, Daisuke Ota, Kazuhiro Yamamura, Masanori Kitaichi, Mayuko Taeda, Michiko Doi, Shigeru Morita, Shoji Fukuoka, Yuu KADOWAKI
Принадлежит: Daikin Industries Ltd

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 (δG′), 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.

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Номер записи: 84
15-01-2015 дата публикации

BINDER, CATHODE MIXTURE AND ANODE MIXTURE

Номер: US20150017532A1
Автор: FUJISAWA Manabu, Fukatani Tomoyuki, Ichikawa Kenji, ICHISAKA Toshiki, IGUCHI Takashi, ISHIKAWA Takuji, KITAHARA Takahiro, Uchida Kazunobu
Принадлежит: DAIKIN INDUSTRIES, LTD.

A binder, including a fluoropolymer, the fluoropolymer including a polymerization unit based on vinylidene fluoride and a polymerization unit based on a monomer having an amide group represented by —CO—NRR′ (R and R′ are the same as or different from each other and each represent a hydrogen atom or an alkyl group optionally having a substituent group) or an amide bond represented by —CO—NR″— (R″ represents a hydrogen atom, an alkyl group optionally having a substituent group, or a phenyl group optionally having a substituent group) and having a solution viscosity of 10 to 20,000 mPa·s. Also disclosed is a positive electrode mixture and a negative electrode mixture containing the binder, a positive electrode, a negative electrode and a lithium ion secondary cell. 1. A binder , comprising a fluoropolymer ,the fluoropolymer including a polymerization unit based on vinylidene fluoride and a polymerization unit based on a monomer having an amide group represented by —CO—NRR′ (R and R′ are the same as or different from each other and each represent a hydrogen atom or an alkyl group optionally having a substituent group) or an amide bond represented by —CO—NR″— (R″ represents a hydrogen atom, an alkyl group optionally having a substituent group, or a phenyl group optionally having a substituent group) and having a solution viscosity of 10 to 20,000 mPa·s.2. The binder according to claim 1 ,wherein the fluoropolymer includes the polymerization unit based on a monomer having an amide group or an amide bond in an amount of 0.01 to 3 mol % relative to the amount of all the polymerization units.3. The binder according to claim 1 ,wherein the fluoropolymer further includes a polymerization unit based on tetrafluoroethylene.4. The binder according to claim 3 ,wherein the fluoropolymer includes the polymerization unit based on vinylidene fluoride in an amount of 50 to 90 mol % and the polymerization unit based on tetrafluoroethylene in an amount of 9.9 to 49.9 mol % relative to ...

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Номер записи: 85
21-01-2016 дата публикации

POLYVINYLIDENE FLUORIDE COMPOSITION

Номер: US20160017136A1
Автор: Amin-Sanayei Ramin, HOCHSTETTER Gilles, HUGON Lionel, LABOUR Thomas, LANNUZEL Thierry, Ramfel Barbara
Принадлежит: Arkema France

The invention relates to a composition comprising: a homopolymer of vinylidene fluoride (VDF) and at least one other fluorinated monomer copolymerizable with VDF, the weight proportion of said copolymer in the composition being between 10 to 35%; and a plasticisizer, the weight proportion of said plasticizer in the composition being between 1 to 5%. The invention also relates to a method for producing said composition and the use thereof for producing various items.

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Номер записи: 86
17-01-2019 дата публикации

Method For Providing Surface Modifying Composition With Improved Byproduct Removal

Номер: US20190016845A1
Автор: Hall Monica P., Kamerath Craig, Kosaraju Praveen, Teo Jiunn
Принадлежит: Fresenius Medical Care Holdings, Inc.

A method forming a surface modifying composition with reduced need for organic solvent and evaporation thereof for removal of insoluble reaction byproducts from the composition. The purified composition can be used in the formation of articles having improved biocompatibility, such as medical articles (e.g., spun hollow fiber). 1. A method comprising:forming a first solution by phase transitioning at least a portion of a surface modifying composition to a liquid state, the surface modifying composition comprising:a) at least one polymer or oligomer, andb) an insoluble reaction byproduct of i) a fluorotelomer alcohol and ii) an isocyanate, wherein said insoluble reaction byproduct is substantially insoluble in said polymer or oligomer; andremoving from the first solution at least a portion of said insoluble reaction byproduct present in the first solution to obtain a second solution;wherein said polymer or oligomer comprises a polymer or oligomer backbone covalently attached to at least one surface active group.2. The method of claim 1 , wherein said first solution is formed by dissolving at least a portion of said surface modifying composition in at least one solvent.3. The method of claim 1 , wherein said first solution is formed by melting said polymer or oligomer of said surface modifying composition.4. The method of claim 1 , wherein the insoluble reaction byproduct is fluorotelomer alcohol end capped di-isocyanate.5. The method of claim 1 , wherein the fluorotelomer alcohol (FTOH) is 4:2 FTOH claim 1 , 5:2 FTOH claim 1 , 6:2 FTOH claim 1 , 7:2 FTOH claim 1 , 8:2 FTOH claim 1 , 9:2 FTOH claim 1 , 10:2 FTOH claim 1 , or a combination thereof.6. The method of claim 1 , wherein the fluorotelomer alcohol is 6:2 fluorotelomer alcohol.7. The method of claim 1 , wherein the isocyanate has two or more isocyanate functional groups.8. The method of claim 1 , wherein the isocyanate is di-isocyanate claim 1 , tri-isocyanate claim 1 , or a combination thereof.9. The method ...

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Номер записи: 87
17-01-2019 дата публикации

FAST AND REVERSIBLE THERMORESPONSIVE POLYMER SWITCHING MATERIALS

Номер: US20190016871A1
Автор: Bao Zhenan, Chen Zheng, Cui Yi
Принадлежит: THE BOARD OF TRUSTEES OF THE LELAND STANFORD JUNIOR UNIVERSITY

A polymer composite includes a polymeric matrix and conductive fillers dispersed in the polymeric matrix. The polymeric matrix includes a polymer having a thermal expansion coefficient of at least about 100 μm/(m K), and the conductive fillers have surface texturing. 1. A polymer composite comprising:a polymeric matrix; andconductive fillers dispersed in the polymeric matrix,wherein the polymeric matrix includes a polymer having a thermal expansion coefficient of at least 100 μm/(m K),wherein the conductive fillers have surface texturing.2. The polymer composite of claim 1 , wherein the thermal expansion coefficient of the polymer is at least 140 μm/(m K).3. The polymer composite of claim 1 , wherein the polymer is selected from polyolefins claim 1 , polyethers claim 1 , and fluoropolymers.4. The polymer composite of claim 1 , wherein the conductive fillers include metal microparticles having surface texturing.5. The polymer composite of claim 4 , wherein the metal microparticles each includes a core and protrusions extending from the core.6. The polymer composite of claim 4 , wherein the metal microparticles each includes a core claim 4 , protrusions extending from the core claim 4 , and a conductive coating at least partially covering the core and the protrusions.7. The polymer composite of claim 6 , wherein the conductive coating includes a carbonaceous material.8. The polymer composite of claim 6 , wherein the conductive coating includes graphene.9. The polymer composite of claim 6 , wherein the conductive coating has a thickness in a range from 0.5 nm to 100 nm.10. The polymer composite of claim 1 , wherein a loading level of the conductive fillers is in a range from 0.5% to 40% by volume of the polymer composite.11. The polymer composite of claim 1 , characterized by a switching temperature claim 1 , such that an electrical conductivity of the polymer composite undergoes a change by a factor of at least 10across the switching temperature.12. The polymer ...

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Номер записи: 88
17-01-2019 дата публикации

WATER REPELLENT COMPOSITION AND PROCESS FOR PRODUCING MOISTURE PERMEABLE WATERPROOF FILM COATED ARTICLE

Номер: US20190016879A1
Автор: HARA Hiroyuki, Inoue Hiroaki, OOMORI Yuuichi, SUGIYAMA Kazunori
Принадлежит: AGC Inc.

To provide a water repellent composition whereby a moisture permeable waterproof film is rendered less likely to be peeled from an article treated by the water-repellent composition. The water repellent composition comprises a copolymer (A) having structural units based on a monomer (a) and structural units based on a monomer (b), a polymer (B) having an amino group, an ammonium salt group or an amide group as a pendant group, and an aqueous medium. The monomer (a) is a compound represented by R-Q-Z—C(O)C(R)═CH(wherein Ris a Cperfluoroalkyl group, Q is either a divalent hydrocarbon group containing no fluorine atom or a single bond, Z is —O— or NH—, and R is a hydrogen atom, a methyl group or a chlorine atom). 2. The water repellent composition according to claim 1 , wherein the mass ratio ((A)/(B)) of the copolymer (A) to the polymer (B) is from 100/0.01 to 100/10.3. The water repellent composition according to claim 1 , wherein the proportion of the structural units based on the monomer (a) is from 5 to 95 mass % in all structural units (100 mass %) based on monomers constituting the copolymer (A).4. The water repellent composition according to claim 1 , wherein the proportion of the structural units based on the monomer (b) is from 5 to 95 mass % in all structural units (100 mass %) based on monomers constituting the copolymer (A).5. The water repellent composition according to claim 1 , wherein the mass average molecular weight of the polymer (A) is from 1 claim 1 ,000 to 500 claim 1 ,000.6. The water repellent composition according to claim 1 , wherein the mass average molecular weight of the polymer (B) is from 1 claim 1 ,000 to 200 claim 1 ,000.7. The water repellent composition according to claim 1 , wherein the monomer (a) is F(CF)CHCHOC(O)C(CH)═CH.8. The water repellent composition according to claim 1 , wherein the monomer (b) is stearyl (meth)acrylate or behenyl (meth)acrylate.9. The water repellent composition according to claim 1 , wherein the ...

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Номер записи: 89
21-01-2021 дата публикации

MOLDED ARTICLE

Номер: US20210017375A1
Автор: FUKUSHIMA Toshiyuki, HIKOSAKA Masamichi, OKADA Kiyoka, OKANISHI Ken, Sawaki Kyouhei, Yamaguchi Yasuyuki
Принадлежит:

The invention provides a molded article having excellent mechanical strength, heat resistance, surface roughness, and ferroelectricity. The molded article contains a crystal of a vinylidene fluoride/tetrafluoroethylene copolymer. The crystal is a β crystal and is a nano-oriented crystal that has a size of 100 nm or smaller. The molded article has an arithmetic average roughness of 3.0 μm or lower. 1. A molded article comprising a crystal of a vinylidene fluoride/tetrafluoroethylene copolymer ,the crystal being a β crystal and being a nano-oriented crystal that has a size of 100 nm or smaller,the molded article having an arithmetic average roughness of 3.0 μm or lower.2. The molded article according to claim 1 ,wherein the vinylidene fluoride/tetrafluoroethylene copolymer has high crystallinity.3. The molded article according to claim 1 ,wherein the vinylidene fluoride/tetrafluoroethylene copolymer contains 50 to 95 mol % of a vinylidene fluoride unit and 5 to 50 mol % of a tetrafluoroethylene unit relative to 100 mol % in total of the vinylidene fluoride unit and the tetrafluoroethylene unit.4. The molded article according to claim 1 ,wherein the molded article is a ferroelectric.5. The molded article according to claim 1 ,wherein the molded article has a melting point of 130° C. or higher.6. The molded article according to claim 1 ,wherein the molded article has a heatproof temperature of 90° C. or higher.7. The molded article according to claim 1 ,wherein the molded article has an elastic modulus of 1.0 GPa or higher.8. The molded article according to claim 1 ,{'sup': '2', 'wherein the molded article has a remanent polarization of 45 mC/mor higher.'}9. The molded article according to claim 1 ,wherein the molded article has a coercive field of 35 MV/m or lower. The invention relates to molded articles having excellent mechanical strength, heat resistance, surface roughness, and ferroelectricity.A variety of organic dielectric films and inorganic dielectric films ...

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Номер записи: 90
21-01-2021 дата публикации

IMPROVED FLAME RETARDANT COMPOSITIONS

Номер: US20210017385A1
Автор: GOOSSENS Johannes Gerardus Petrus, GOOSSENS Johannes Martinus Dina, Ramakrishnan Vaidyanath
Принадлежит:

In an embodiment, a composition comprises a poly(ester-carbonate-siloxane) copolymer; a nanosilica; a plurality of polysiloxane particles; and a fluoropolymer. The nanosilica can be present in an amount of 1 to 5 wt % based on a total weight of the composition. The nanosilica can have a Dparticle size by volume of 5 to 50 nanometers. The nanosilica can have a hydrophobic coating. The plurality of polysiloxane particles can be present in an amount of 1 to 10 wt % based on a total weight of the composition. The plurality of polysiloxane particles can have a Dparticle size by volume of 0.1 to 10 micrometers. The fluoropolymer can be present in an amount of 0.005 to 5 wt % based on a total weight of the composition. 1. A composition comprising:a poly(ester-carbonate-siloxane) copolymer;{'sub': '50', '1 to 5 wt % based on a total weight of the composition of a nanosilica having a Dparticle size by volume of 5 to 50 nanometers; wherein the nanosilica has a hydrophobic coating;'}{'sub': '50', '1 to 10 wt % based on a total weight of the composition of a plurality of polysiloxane particles having a Dparticle size by volume of 0.1 to 10 micrometers; and'}0.005 to 5 wt % based on a total weight of the composition of a fluoropolymer.2. The composition of claim 1 , wherein the composition passes one or more ofa ULV0 rating at a thickness of 0.8 mm, or 0.6 mm, or 0.4 mm;{'sup': 2', '2, 'a 2 minute integrated heat release rate of less than or equal to 55 kW-min/mand a peak heat release rate of less than 55 kW/min accordance with the OSU 55/55 test;'}a peak heat release rate of less than 170 watts per gram as determined in accordance with ASTM D7309-13, method A at a temperature ramp of 1° C./s; or{'sup': 2', '2, 'a smoke density after 4 minutes of less than 150 kW/mand an integral of the smoke density as a function of time up to 4 minutes of less than 300 kW/mdetermined in accordance with ISO 5659-2 using on a 3 mm thick plaque.'}3. The composition of claim 1 , wherein the ...

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Номер записи: 91
22-01-2015 дата публикации

Core/shell fluoropolymer

Номер: US20150021814A1
Автор: Heidi Elizabeth Burch, Ralph Munson Aten
Принадлежит: EI Du Pont de Nemours and Co

A core/shell polymer is provided and is optionally heat aged, wherein the core comprises one of (a) melt-fabricable tetrafluoroethylene/perfluoro(alkyl vinyl ether) copolymer and (b) melt-processible polytetrafluoroethylene and the shell comprises the other of (a) and (b), wherein the amount of (b) in said core/shell polymer is 15 to 45 wt % based on the total weight of (a) and (b) whether (b) is the core or shell of the core/shell polymer.

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Номер записи: 92
10-02-2022 дата публикации

Mask with ePTFE Membrane

Номер: US20220039489A1
Автор: Park Evit
Принадлежит:

Disclosed herein is a mask with an ePTFE membrane including: a mask sheet for covering a wearer's nose and mouth; and a mask string which is connected to both ends of the mask sheet and is held to the wearer's ears, wherein the mask sheet includes an ePTFE membrane. The mask sheet includes: an inner layer located toward the wearer's face; an outer layer located on the opposite side of the inner layer which faces the wearer's face; and the ePTFE membrane located between the inner layer and the outer layer. Furthermore, both ends of the outer layer, both ends of the ePTFE membrane and both ends of the inner layer are bonded mutually. 1. A mask with an ePTFE membrane comprising:a mask sheet for covering a wearer's nose and mouth; anda mask string which is connected to both ends of the mask sheet and is held to the wearer's ears,wherein the mask sheet includes an ePTFE membrane.2. The mask according to claim 1 , wherein the mask sheet comprises:an inner layer located toward the wearer's face;an outer layer located on the opposite side of the inner layer which faces the wearer's face; andthe ePTFE membrane located between the inner layer and the outer layer.3. The mask according to claim 2 , wherein both ends of the outer layer claim 2 , both ends of the ePTFE membrane and both ends of the inner layer are bonded mutually.4. The mask according to claim 2 , wherein the inner layer comprises:a PP inner layer located toward the wearer's face; anda PET inner layer located between the ePTFE membrane and the PP inner layer.5. The mask according to claim 2 , wherein the outer layer comprises:a PET outer layer located on the ePTFE membrane; anda PP outer layer located on the PET outer layer.6. A mask sheet used for a mask including an ePTFE membrane.7. The mask sheet used for a mask comprising:an inner layer;an ePTFE membrane located on the inner layer; andan outer layer located on the ePTFE membrane.8. The mask sheet according to claim 7 , wherein the inner layer comprises:a PET ...

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Номер записи: 93
22-01-2015 дата публикации

Fluoropolymer composition

Номер: US20150024216A1
Автор: Noriyuki Usami
Принадлежит: 3M Innovative Properties Co

A fluoropolymer composition is provided containing a polymer containing perfluoroolefin units or partially fluorinated olefin units or a combination thereof, polytetrafluoroethylene having a melting point a melting point of 200° C. or more and 300° C. or less, and a crosslinking agent or a crosslinking promoter or a combination thereof. A molded article having a polytetrafluoroethylene layer on a surface is also provided.

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Номер записи: 94
17-04-2014 дата публикации

Heat resistant, flame retardant polylactic acid compounds

Номер: US20140107241A1
Автор: Jing Liu
Принадлежит: PolyOne Corp

Significant disadvantages of the use of polylactic acid (PLA), lack of good heat stability and flame retardance, have been overcome by the use of resorcinol bis(diphenyl phosphate) in combination with talc. The compound achieves a threshold of 65° C. in heat deflection temperature and V-0 flame retardance at 1.6 mm thickness.

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Номер записи: 95
24-01-2019 дата публикации

Additive processing of fluoropolymers

Номер: US20190022928A1
Автор: Bernd Gangnus, Carsten Franke, Fee ZENTIS, Gabriele H. GOTTSCHALK-GAUDIG, Gallus Schechner, Jeffrey N. BARTOW, Klaus Hintzer, Malte Korten, Robin E. Wright, Wolfgang Neumann
Принадлежит: 3M Innovative Properties Co

Provided are methods for making shaped fluoropolymer by additive processing using a polymerizable binder. Also are 3D printable compositions for making shaped fluoropolymer articles and articles comprising a shaped fluoropolymer.

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Номер записи: 96
10-02-2022 дата публикации

ELASTOMER COMPOSITION AND SEALING MATERIAL

Номер: US20220041773A1
Автор: IMADA Hirohisa, Mochizuki Tomomitsu, Osumi Naoki
Принадлежит: VALQUA, LTD.

Provided are an elastomer composition including a first fluoroelastomer that is a copolymer of tetrafluoroethylene and perfluoro (alkoxyvinyl ether) and a second fluoroelastomer different from the first fluoroelastomer, and a sealing material including a crosslinked product of the elastomer composition. 1. An elastomer composition comprising:a first fluoroelastomer being a copolymer containing a constituent unit derived from tetrafluoroethylene and one or more constituent units derived from perfluoro (alkoxyvinyl ether); anda second fluoroelastomer different from the first fluoroelastomer, orcomprising two or more of the first fluoroelastomers.2. The elastomer composition according to claim 1 , wherein the second fluoroelastomer is a perfluoroelastomer.3. The elastomer composition according to claim 2 , wherein the second fluoroelastomer is a copolymer containing the constituent unit derived from tetrafluoroethylene and one or more constituent units derived from perfluoro (alkyl vinyl ether).4. The elastomer composition according to claim 1 , wherein the first fluoroelastomer and the second fluoroelastomer are contained in a mass ratio of 10:90 to 90:10.5. The elastomer composition according to claim 1 , further comprising a peroxide crosslinking agent and a co-crosslinking agent.6. A sealing material comprising a crosslinked product of the elastomer composition according to . The present invention relates to an elastomer composition and a sealing material using the elastomer composition.Sealing materials (gaskets, packings, and the like) are used for various applications, and characteristics according to the applications are required. For example, when sealing materials are used under a high-temperature environment, they are required for heat resistance. When sealing materials are used under an environment in which the sealing materials are exposed to a plasma, they are required for resistance to the plasma (plasma resistance).Meanwhile, ozone having strong ...

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Номер записи: 97
10-02-2022 дата публикации

Fluoropolymer composition stabilized against changes in ph

Номер: US20220041837A1
Автор: Giulio Brinati, Mirko MAZZOLA, Serena Carella
Принадлежит: Solvay Specialty Polymers Italy SpA

The present invention relates to a composition comprising particles of at least one 1,1-difluoroethylene (VDF)-based fluoropolymer, in admixture with a stabilizer agent selected from alkaline metal hydrogencarbonates or hydrogenphosphates, and to uses of said composition notably in electrochemical cells.

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Номер записи: 98
10-02-2022 дата публикации

COMPOSITES HAVING A THERMOPLASTIC MATRIX

Номер: US20220041849A1
Автор: Beyer Horst, Franosch Jürgen, Ries Hans, Szentivanyi Andreas
Принадлежит: EVONIK OPERATIONS GMBH

The present invention is directed to continuous fiber-reinforced composites having a matrix of modified PVDF. The composite may be a semifinished product or a product or finished part manufactured therefrom. A product according to the invention is pelletized long-fiber material, while a finished part according to the invention is especially a thermoplastic composite pipe. 1. A composite composed of a polymer matrix and continuous fibers embedded therein , where the polymer matrix consists to an extent of at least 80% by weight of a mixture comprising the following components:a) low-viscosity PVDF as the main component, i.e. to an extent of at least 50 parts by weight, and 'where the sum total of the parts by weight of a) and b) is 100, and', 'b) from 1 to 50 parts by weight of an acrylate copolymer, where the acrylate copolymer contains from 1% to 30% by weight of units having carboxylic anhydride units,'}where the proportion by volume of the continuous fibers in the composite is also from 10% to 80% by weight,where the percentages of the polymer matrix and of the continuous fibers are each based on the total mass or total volume of the composite.2. The composite according to claim 1 , wherein the PVDF is a homopolymer or a copolymer.4. The composite according to claim 1 , wherein it is a unidirectionally continuous fiber-reinforced tape.5. The elongate long-fiber-reinforced pellets having a length of from 4 to 60 mm claim 1 , produced by cutting a composite in strand form according to .6. A thermoplastic composite pipe (TCP) comprising the following components from the inside outward:I. a tubular liner having one or more layers, the outer surface of which consists of a polyamide molding compound or PVDF molding compound; a) from 50 to 99 parts by weight of PVDF and', 'where the sum total of the parts by weight of a) and b) is 100 and where the proportion by volume of the continuous fibers in the composite is from 10% to 80% by weight,', 'b) from 1 to 50 parts by ...

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Номер записи: 99
23-01-2020 дата публикации

Porous membrane, membrane module, water treatment device, and method for manufacturing porous membrane

Номер: US20200023322A1
Автор: Ami SHINODA, Hiroki FUKUTA, Masashi Teramachi, Megumi Kubo, Seiichiro Mori, Shingo Hikita, Yuuki Fujii
Принадлежит: Mitsubishi Chemical Corp

Provided is a porous membrane that can be manufactured in uncomplicated steps, has high hydrophilicity and water permeability, and exhibits excellent anti-fouling properties when used in a membrane bioreactor method (MBR method). The porous membrane of the present invention is a porous membrane containing polymer (A) and polymer (B), wherein the polymer (A) is a membrane-forming polymer, the polymer (B) is a polymer having a unit (b1) represented by formula (1) and a unit (b2) based on hydroxyl group-containing (meth)acrylate, and the concentration (mass %) of the unit (b1) is equal to or higher than the concentration (mass %) of the unit (b2) in the porous membrane.

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Номер записи: 100