Abstract: A microporous membrane includes a low melting polypropylene, the low melting polypropylene being a polypropylene homopolymer or copolymer having an MFR?2.0×102, a Tm of 85.0° C. to 130.0° C., and a Te-Tm?10° C.
Type:
Grant
Filed:
December 20, 2011
Date of Patent:
November 22, 2016
Assignee:
Toray Battery Separator Film Co., Ltd.
Inventors:
Patrick Brant, Takeshi Ishihara, Satoshi Miyaoka, Donna J. Crowther, Koichi Kono
Abstract: The present invention provides aqueous binder compositions comprising one or more polyol and a multistage copolymer, preferably, an all acrylic and allylic or all acrylic copolymer, having as the outermost stage a polymerized acid functional aqueous solution polymer and as the one or more remaining stage(s) a vinyl emulsion polymer, wherein the emulsion polymer stage(s) in the multistage copolymer comprises 5 wt. % or less of hydrophilic monomer, based on the total weight of monomers used to make the emulsion polymer stage(s). The multistage copolymer enables incorporation of a much higher amount of hydrophilic monomer into a polymeric binder without the attendant handling or viscosity problems. Also provided are methods of using the aqueous binder compositions comprising pultruding two or more non-woven fibers or a fiber roving with the aqueous binder composition, and drying, Articles comprising the bound fiber(s) are provided.
Type:
Grant
Filed:
September 24, 2013
Date of Patent:
November 22, 2016
Assignee:
Rohm and Haas Company
Inventors:
Stephen A. Crescimanno, Michael D. Kelly
Abstract: Provided is: a cell culture membrane, which is free from materials derived from living organisms, can easily be industrially mass-produced, exhibits superior long-term storage properties and chemical resistance, has excellent cell adhesion properties and long-term culture properties and is capable of replicating a cell adhesion morphology that is similar to that of collagen derived from living organisms and being used for conventional cell cultivation. Also provided are a cell culture substrate, and a method for manufacturing the cell culture substrate. In the present invention, as a cell adhesion layer, a polymer membrane represented by formula (I) is formed on the base of a cell culture substrate so as to have a membrane thickness equal to or greater than 0.2 ?m (in the formula, R1 and R2 represent a —(CH2)n—NH2 moiety (n is an integer of 1-10 inclusive.) or H, with at least one of R1 and R2 being a —(CH2)n—NH2 moiety. Moreover, l and m are positive integers expressing polymerization degree).
Type:
Grant
Filed:
June 22, 2012
Date of Patent:
November 15, 2016
Assignees:
KISCO LTD., DAISANKASEI CO., LTD., The University of Tokyo
Abstract: Ionomers comprising ionic groups such as, for example, tetraalkylammonium groups and methods of making such ionomers. For example, the ionomers can be produced by ring opening metathesis polymerization of alkene-containing monomers with tetraalkylammonium groups and, optionally, alkene-containing monomers without tetraalkylammonium groups. The ionomers can be used in applications such as, for example, fuel cell applications.
Type:
Grant
Filed:
May 31, 2010
Date of Patent:
November 15, 2016
Assignee:
Cornell University
Inventors:
Geoffrey W. Coates, Henry A. Kostalik, IV, Timothy J. Clark, Nicholas J. Robertson
Abstract: The present disclosure relates to an inorganic, halogen-free flameproofing agent made of modified, rehydrated red mud (MR2S), having a mineral composition of 10 to 50 weight percent of iron compounds, 12 to 35 weight percent of aluminum compounds, 5 to 17 weight percent of silicon compounds, 2 to 21 weight percent of TiO2, and 0.5 to 6 weight percent of calcium compounds, wherein the compounds of iron have a hydroxide and oxide hydrate fraction greater than or equal to 50 weight percent relative to the oxide fraction of the iron compounds, and wherein the compounds of aluminum have a hydroxide and oxide hydrate fraction greater than or equal to 50 weight percent. The disclosure further relates to a flameproofed material system comprising a flammable material and the inorganic, halogen-free flameproofing agent and to a method for the production thereof.
Type:
Grant
Filed:
March 23, 2011
Date of Patent:
November 8, 2016
Assignee:
FLUORCHEMIE GMBH FRANKFURT
Inventors:
Christian Rocktäschel, Heinzhorst Möbius
Abstract: The present invention relates to partial decarboxylation of polyitaconic acid polymers or copolymers. The partially decarboxylated resins are suitable for use in preparation of dispersions as well as for anti-scaling applications.
Abstract: The present invention relates to a modified polymer obtained by grafting a compound comprising at least one group Q, and at least one group A bonded together by at least, and preferably, one “spacer” group Sp in which: Q comprises an azo-carbonyl group capable of being grafted onto the polymer chain by an “ene reaction”, A comprises an associative group comprising at least one nitrogen atom, Sp is an atom or a group of atoms forming a bond between Q and A.
Type:
Grant
Filed:
July 12, 2011
Date of Patent:
November 1, 2016
Assignees:
COMPAGNIE GENERALE DES ESTRABLISSEMENTS MICHELIN, MICHELIN RECHERCHE ET TECHNIQUE S.A.
Inventors:
José Araujo Da Silva, Jean-Michel Favrot, Anne Frédérique Salit, Nicolas Seeboth
Abstract: The present disclosure provides a composition comprising: a) a polypropylene; b) a polyolefin elastomer; and c) a block composite. The polyolefin elastomer has an I10/I2 from greater than 7.5 to 15.0. The composition may optionally include a filler.
Type:
Grant
Filed:
December 31, 2013
Date of Patent:
October 25, 2016
Assignee:
Dow Global Technologies LLC
Inventors:
Yi Jin, Xuming X. Chen, Kim L. Walton, Gary R. Marchand, Jeffrey D. Weinhold, Sylvie Vervoort
Abstract: 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 ?m, 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.
Abstract: A method for preparing a functionalized polymer, the method comprising the steps of: (i) polymerizing monomers to form a reactive polymer, and (ii) reacting the reactive polymer with an unsaturated heterocycle containing a protected amino group.
Abstract: A method of: dissolving salts of a first metal ion and a second metal ion in water to form a solution; heating the solution to a temperature of about 80-90° C.; and adding a base to the solution to precipitate nanoparticles of an oxide of the first metal ion and the second metal ion.
Type:
Grant
Filed:
June 20, 2014
Date of Patent:
October 11, 2016
Assignee:
The United States of America, as represented by the Secretary of the Navy
Inventors:
Jeffrey W. Long, Debra R. Rolison, Benjamin P. Hahn
Abstract: The invention pertains to a low viscosity curable (per)fluoroelastomer [fluoroelastomer (A)] having a number-averaged molecular weight of 3 000 to 45 000, said (per)fluoroelastomer comprising at least 1% moles, with respect to the total moles of recurring units, of recurring units derived from at least one (per)fluoromethoxyalkylvinylether of formula (I): CFX??CX?OCF2ORf??formula (I) wherein X? and X?, equal to or different from each other, are independently H or F; and Rf is selected from the group consisting of C1-C6 (per)fluoroalkyls, linear or branched; C5-C6 cyclic (per)fluoroalkyls; and C2-C6 (per)fluorooxyalkyls, linear or branched, comprising from 1 to 3 catenary ethereal oxygen atoms [monomer (M)].
Type:
Grant
Filed:
December 13, 2011
Date of Patent:
October 4, 2016
Assignee:
SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
Inventors:
Marco Apostolo, Giovanni Comino, Marco Cristini
Abstract: A compound membrane for use in electrochemical devices is disclosed. The compound membrane has of proton-conducting polymer cast in a porous media having dispersed therein at least one active ingredients. It supplies considerably improved performance data in comparison to known membranes. The compound membrane electrode can be produced by treating proton-conducting polymers with acetone to obtain polymer pulp, then sulfonating the polymer pulp, combining one or more active ingredients with the polymer pulp and casting the polymer pulp to obtain the membrane.
Type:
Grant
Filed:
July 16, 2013
Date of Patent:
October 4, 2016
Assignee:
Xergy LTD
Inventors:
Bamdad Bahar, William Paul Parmelee, Steven K Naugler
Abstract: The present invention provides anion exchange membranes, processes for producing same and uses thereof. The anion exchange membranes according to embodiments of the present invention achieve a desirable combination of low resistance, high permselectivity and low degree of dimensional swelling. Anion exchange membranes according to embodiments of the present invention are also cost effective.
Type:
Grant
Filed:
December 12, 2011
Date of Patent:
October 4, 2016
Assignee:
Ben-Gurion University of the Negev Research and Development Authority
Inventors:
Charles Linder, Ora Kedem, Rami Messalem
Abstract: 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 ?m, 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.
Abstract: The disclosure herein includes rapid gas decompression (RGD)-resistant fluoroelastomeric compositions and includes a curable fluoropolymer having a curesite monomer with at least one functional group capable of curing with a peroxide curative. The compositions include a bisphenyl-based curative and an organic peroxide curative and an organic peroxide co-curative. The fluoroelastomeric compositions have a ratio of the bisphenyl-based curative to the organic peroxide co-curative of about 0.25:1 to about 1.5:1 and a ratio of the bisphenyl-based curative to the organic peroxide of about 0.5:1 to about 1.5:1. Such compositions can be formed into seals meeting RGD industry standards in a variety of sizes, up to and/or exceeding 5 mm in thickness or cross-sectional diameter.
Abstract: 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.
Abstract: The invention relates to methods of polymerizing fluoromonomers using non-fluorinated surfactants, in particular to emulsion polymerization method for producing fluoropolymer latex. Specifically, the method of polymerization uses one or more alkyl sulfate surfactants.
Type:
Grant
Filed:
July 25, 2012
Date of Patent:
September 20, 2016
Assignee:
Arkema Inc.
Inventors:
Ramin Amin-Sanayei, Lotfi Hedhli, Mehdi Durali, Roice A. Wille
Abstract: A composition for solubilizing a fluoropolymer is described. Further described, is how the fluoropolymer composition is obtained, as well as the process for its preparation and its use as a coating applicant. The composition can include a solubilized fluoropolymer and a solvent blend of a diester and dimethylsulfoxyde.
Abstract: Provided is a fluororubber composition which does not deteriorate workability during roll kneading, does not cause foaming during crosslinking and molding, and is capable of giving a crosslinked molded article which exhibits desired hardness and sealing property without using a reinforcing inorganic filler such as carbon black and silica. The fluororubber composition includes, relative to 100 parts by weight of a vinylidene fluoride-copolymerized, fluorine-containing elastomer copolymer having a glass transition temperature and a melting point, no reinforcing inorganic filler, 5 to 100 parts by weight of a PTFE filler, 0.5 to 10 parts by weight of a polyol crosslinking agent, 1 to 15 parts by weight of magnesium oxide, and 0.1 to 2 parts by weight of hydrotalcite. Preferably, 0.1 to 10 parts by weight of a quaternary onium salt crosslinking accelerator is further included.