序号 专利名 申请号 申请日 公开(公告)号 公开(公告)日 发明人
121 THERMOPLASTIC COMPOSITIONS, METHODS, APPARATUS, AND USES US15965363 2018-04-27 US20180312667A1 2018-11-01 James R. Colgrove; Keith Wojciechowski
Thermoplastic polyurethane (TPU) compositions, methods for producing TPU compositions, methods of using TPU compositions, and apparatuses produced therefrom are disclosed. Disclosed TPU compositions include a thermoplastic polyurethane polymer, a heat stabilizer, a flow agent, and a filler material. The filler may be a glass fiber. Disclosed TPU compositions have improved thermal stability and improved flow properties suitable for injection molding of articles of manufacture having a large plurality of fine openings or pores. Articles produced from the composition have superior thermal stability, abrasion resistance, and chemical resistance. Example articles include screening members for vibratory screening machines.
122 Polymers for reversing heparin-based anticoagulation US14629408 2015-02-23 US10111902B2 2018-10-30 Jayachandran N. Kizhakkedathu; Rajesh A. Shenoi; Cedric J. Carter; Donald E. Brooks
Embodiments presented herein relate to various polymers. Some of the polymer embodiments are heparin binding polymers. Some embodiments of the heparin binding polymers can be employed to bind to heparin for methods such as separating, purifying, removing, and/or isolating heparin and heparin like molecules.
123 NITROGEN-CONTAINING COMPOUNDS SUITABLE FOR USE IN THE PRODUCTION OF POLYURETHANES US15323154 2015-07-23 US20180194889A1 2018-07-12 Thomas Günther; Michael Fiedel; Olga Fiedel; Martin Glos; Roland Hubel
The present invention provides for the use of nitrogen compounds of formula (I) and/or of corresponding quaternized and/or protonated compounds for production of polyurethanes, compositions containing these compounds and polyurethane systems, especially polyurethane foams, which have been obtained using the compounds.
124 GAS SEPARATION MEMBRANE, GAS SEPARATION MODULE, GAS SEPARATION DEVICE, GAS SEPARATION METHOD, AND POLYIMIDE COMPOUND US15806336 2017-11-08 US20180085716A1 2018-03-29 Koji HIRONAKA; Satoshi SANO; Yusuke IIZUKA; Sotaro INOMATA; Keisuke KODAMA; Tetsu KITAMURA
A gas separation membrane includes a gas separation layer containing a polyimide compound having a repeating unit represented by Formula (I), in Formula (I), RI represents a hydrogen atom, an alkyl group, or a halogen atom, Xa represents a sulfamoyl group, an alkoxysulfonyl group, a carboxy group, a hydroxy group, an acyloxy group, or a halogen atom, and R represents a mother nucleus having a specific structure.
125 Polymer-based dialysate US14396603 2013-04-18 US09919004B2 2018-03-20 Jayachandran Kizhakkedathu; Caigan Du; Gerald Da Roza; Asher Mendelson
Embodiments described herein provide a dialysate comprising a polyglycerol. The polyglycerol may be of a molecular weight between about 0.15 kDa and about 60 kDa. Also provided herein is the use of the dialysate as a diffusion agent and as an osmotic agent.
126 SEPARATION MEMBRANE, SEPARATION MEMBRANE ELEMENT AND SEPARATION MEMBRANE MODULE US15516969 2015-10-06 US20170296985A1 2017-10-19 Takahito Nakao; Mayumi Akashi; Miyuki Yao; Seiji Watanuki; Tooru Kitagawa
[Problem] To provide a membrane for the forward osmosis method, which keeps a high porosity, reduces concentration polarization by appropriately controlling the pore distribution, achieves both high water permeability and a self-supporting property, and has high chemical durability such that the membrane is applicable to various draw solutions. [Solution] A separation membrane having a structure inclined from an outer surface side to an inner surface side, a ratio between a thickness of a dense layer having a dense polymer density and a thickness of a coarse layer having a coarse polymer density being in a range of 0.25≦(the thickness of the coarse layer)/[(the thickness of the dense layer)+(the thickness of the coarse layer)]≦0.6, when measuring polymer density distribution in a thickness direction of the separation membrane by Raman spectroscopy.
127 BLENDED MEMBRANES FOR WATER VAPOR TRANSPORT AND METHODS FOR PREPARING SAME US15319483 2015-06-16 US20170184317A1 2017-06-29 Ryan Nicholas HUIZING; Hao CHEN; Frankie Kin Bong WONG
Water vapor transport membranes for ERV and other water vapor transport applications are provided. The membranes include a substrate and an air impermeable selective layer coated on the substrate, the selective layer including a cellulose derivative and a sulfonated polyaryletherketone. In some embodiments the sulfonated polyaryletherketone is in a cation form and/or the selective layer includes s PEEK and CA in an s PEEK:CA (wt.:wt.) ratio in the range of about 7:3 to 2:3. Methods for making such membranes are provided. The methods include applying a coating solution/dispersion to a substrate and allowing the coating solution/dispersion to dry to form an air impermeable selective layer on the substrate, the coating solution/dispersion including a cellulose derivative and a sulfonated polyarylether ketone. In some embodiments the sulfonated polyaryletherketone is in a cation form and/or the coating solution/dispersion includes s PEEK and CA in an sPEEK:CA (wt.:wt.) ratio in the range of about 7:3 to 2:3.
128 Sulfur scavenging materials for filters and coatings US14832281 2015-08-21 US09610535B2 2017-04-04 Dylan J. Boday; Jeannette M. Garcia; James L. Hedrick; Rudy J. Wojtecki
Materials which react with (“scavenge”) sulfur compounds, such as hydrogen sulfide and mercaptans, are used to limit sulfur-induced corrosion. Filters and protective coatings including these materials, described broadly as polyhexahydrotriazines (PHT) and polyhemiaminals (PHA), are disclosed. Methods of using these materials to prevent corrosion are described. PHT and PHA materials have excellent thermal and mechanical properties for many applications as coatings and filtration media. Specifically, PHT and PHA materials react with sulfur compounds in such a manner as to incorporate sulfur atoms into the polymeric matrix, thus sequestering the sulfur atoms and allowing removal from fluids such as crude oil, natural gas, hydrocarbon combustion exhaust gases, sulfur polluted air and water. A coating PHT or PHA material on a component to be protected similarly reacts with sulfur compounds prior to sulfur being able to penetrate to the component.
129 Styrene-siloxane triblock copolymers as membranes for selective transport of alcohols and other organic compounds in aqueous mixtures US14357541 2012-11-09 US09346921B2 2016-05-24 Nitash P. Balsara; Ali Evren Ozcam; Ashish K. Jha
The present disclosure relates to high molecular weight polystyrene-polydialkylsiloxane-polystyrene (“SDS”) triblock copolymer compositions and methods of separating one or more organic compounds from an aqueous solution using membranes derived from SDS triblock copolymers. The methods may be used to separate the one or more organic compounds from an aqueous solution produced in a fermentation process. In some embodiments, the one or more organic compounds include an alcohol, such as, for example, ethanol. In other embodiments, the one or more organic compounds include acetone. In other embodiments, the one or more organic compounds include acetone, ethanol, and n-butanol produced in an acetone-ethanol-n-butanol (ABE) fermentation process. In other embodiments, the one or more organic compounds include one or more byproducts produced in a fermentation process.
130 SULFUR SCAVENGING MATERIALS FOR FILTERS AND COATINGS US14288319 2014-05-27 US20150343352A1 2015-12-03 Dylan J. Boday; Jeannette M. GARCIA; James L. HEDRICK; Rudy J. WOJTECKI
Materials which react with (“scavenge”) sulfur compounds, such as hydrogen sulfide and mercaptans, are used to limit sulfur-induced corrosion. Filters and protective coatings including these materials, described broadly as polyhexahydrotriazines (PHT) and polyhemiaminals (PHA), are disclosed. Methods of using these materials to prevent corrosion are described. PHT and PHA materials have excellent thermal and mechanical properties for many applications as coatings and filtration media. Specifically, PHT and PHA materials react with sulfur compounds in such a manner as to incorporate sulfur atoms into the polymeric matrix, thus sequestering the sulfur atoms and allowing removal from fluids such as crude oil, natural gas, hydrocarbon combustion exhaust gases, sulfur polluted air and water. A coating PHT or PHA material on a component to be protected similarly reacts with sulfur compounds prior to sulfur being able to penetrate to the component.
131 POLYMERS FOR REVERSING HEPARIN-BASED ANTICOAGULATION US14743754 2015-06-18 US20150283171A1 2015-10-08 Jayachandran N. Kizhakkedathu; Rajesh A. Shenoi; Cedric J. Carter; Donald E. Brooks
Embodiments presented herein relate to various polymers. Some of the polymer embodiments are heparin binding polymers. Some embodiments of the heparin binding polymers can be employed to bind to heparin for methods such as separating, purifying, removing, and/or isolating heparin and heparin like molecules.
132 POLYMERIC MATRICES FORMED FROM MONOMERS COMPRISING A PROTECTED AMINE GROUP US14465108 2014-08-21 US20140360932A1 2014-12-11 Qingshan Jason NIU
The present disclosure relates to polymeric matrices composed of protected amine compound residues and membranes composed from such polymeric matrices. In particular, the present disclosure relates to a polymeric matrix comprising amine compound residues, acyl compound residues and protected amine compound residues.
133 POLYURETHANE FILTERS FOR AIR PURIFICATION US12936333 2008-04-02 US20110034579A1 2011-02-10 Moises Luzia Goncalves Pinto; Joao Manuel Pires DA Silva; Joao Carlos Moura Bordado; Antonio Nunes Barata; Jose Boavida Valente
A process for producing polyurethane foam filter material with adsorption capabilities, containing a solid adsorbent, that comprises a one shot process of reacting a polyurethane foam-forming formulation, comprising isocyanates and polyesters or polyethers, catalysts, silicone oils and water, characterized in that particles of the adsorbent material are included directly in the foam-forming formulation, without any surface pretreatment, after cleansing by heating. The resulting filter material can be sliced in plates of various thicknesses according to the intended particular use, and this use can be in air filtering systems, for purification of air or water, ion-exchange, deodorization, drying, prevention of public hazards, or the separation and purification.
134 COARSE-CELL POLYURETHANE ELASTOMERS US12921325 2009-03-13 US20110021652A1 2011-01-27 Nils Mohmeyer; Ralf Fritz; Annika Habicht; Daniela Tepe; Frank Prissok; Michael Harms; Bernd Bruchmann; Daniel Schoenfelder; Daniel Freidank; Andreas Emge; Andrea Eisenhardt
The present invention relates to an open-cell polyurethane foam comprising polyester and polyether structures and having a density of 70 to 300 g/L, 1 to 20 cells/cm, a rebound intensity greater than 30%, an elongation at break of greater than 200%, a tear propagation resistance of greater than 1.2 N/mm and a tensile strength of greater than 200 kPa. The present invention further relates to a process for producing inventive open-cell polyurethane sponges and to the use thereof as a pipe cleaning sponge.
135 Anti-microbial compositions and polymers US12009222 2008-01-17 US07828885B1 2010-11-09 John Lezdey
Anti-microbial compositions, polymers and paints having incorporated therein at least one phenolic complex. Preferably a chloroxylenol complex is utilized for topical treatment of a patient with a bacterial or viral skin infection.
136 POLYHYDROXYALKANOATE-BASED RESIN FOAMED PARTICLE, MOLDED ARTICLE COMPRISING THE SAME AND PROCESS FOR PRODUCING THE SAME US11911552 2006-04-10 US20090149560A1 2009-06-11 Toshio Miyagawa; Fuminobu Hirose; Kenichi Senda
The object is to provide a molded product of foamed particles obtained by charging biodegradable resin foamed particles which are of vegetable origin and excellent in environmental compatibility into a mold, followed by heat molding, which molded product is not accompanied by post shrinkage after the molding with a wide range of variation of processing in the molding. Further, P3HA resin foamed particles being composed of a resin composition that comprises an isocyanate compound, and a polymer, poly(3-hydroxyalkanoate), having a recurring unit represented by the general formula (1): [—O—CHR—CH2—CO—]  (1) (wherein R represents an alkyl group represented by CnH2n+1, wherein n is an integer of from 1 to 15) produced by a microorganism are provided.
137 Low and medium flux membranes US618709 1996-03-20 US5693694A 1997-12-02 Chaokang Chu; Joseph F. Ferraro; Ann L. Ly
A casting solution for preparing a low to medium flux membrane. The casting solution contains 19-25% by weight polysulfone, polyethersulfone, or polyarylsulfone; 14-32% by weight a hydrophilic compatible polymer; 0.1-6% by weight an isocyanate capped polyethylene glycol urethane polymer; and 37-67% by weight an aprotic and water miscible solvent; in which the polysulfone, polyethersulfone, or polyarylsulfone has a M.W. of 10,000-100,000 daltons, the isocyanate capped polymer contains 2-5 --N.dbd.C.dbd.O groups per molecule and has a M.W. of 500-5,000 daltons, and the compatible polymer contains 2-5 --CH.sub.2 OH groups per molecule and has a M.W. of 200-1,000 daltons. Also disclosed are a method of spinning this casting solution to form a hollow fiber and the hollow fiber thus obtained.
138 Water blown, hydrophilic, open cell polyurethane foams, method of making such foams and articles made therefrom US667633 1996-06-24 US5686502A 1997-11-11 Pat L. Murray; E. Richard Huber
Disclosed is a water blown, open cell, hydrophilic polyurethane foam, a process for preparing such a foam and articles made therefrom. Utilizing a one step process the foam is formed from a reaction mixture comprising an organic polyisocyanate, water, a reaction catalyst and a mixture of certain polyols. The first polyol utilized in the invention is a poly(oxyalkylene) triol, chain terminated with propylene oxide and having a molecular weight in the range of about 2800 to about 6200. The second polyol is a poly(oxyalkylene) polyol, chain terminated with ethylene oxide or propylene oxide and having a molecular weight in the range of about 60 to about 800. The third polyol comprises at least one selected from the group of (i) poly(oxyalkylene) diols chain terminated with ethylene oxide and having a molecular weight in the range of about 500 to about 4000 and (ii) polyfunctional polyols chain terminated with propylene oxide and having a molecular weight in the range of about 250 to about 1000.
139 Polyetherpolyurethane end caps for oil filters US230287 1994-04-20 US5468835A 1995-11-21 Stephen M. Singer
A new polyetherpolyurethane system for the formation of end caps for oil filters is disclosed using a blended oxyalkylene polyol having a functionality greater than 2 and the absence of any oxyethylene component. The blend having a functionality greater than 2 is mixed with a diol cross linker prior to reacting with an isocyanate.
140 Use of reactive hot melt adhesive for manufacture of cigarette filters US485006 1990-02-23 US5058607A 1991-10-22 David G. Carter; Derek J. Green; Michael C. Collins
The plug wrap paper used to form cigarette filters is bonded using a specific class of low viscosity reactive urethane hot melt adhesive compositions which provide a fast setting, temperature resistant bond that is not attacked by aromatic oils solvents or petrochemical vapors.
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