Mixture Of Solid Polymers Present During Cell Formation Patents (Class 521/62)
  • Patent number: 10517372
    Abstract: A wiper assembly includes a non-porous base configured for attachment to an open end of a container body and a porous wiper overmolded onto the base that is configured to wipe formulation from an applicator when removed from the container body. A wiper assembly includes a collar configured to be positioned within an open end of a container body. The collar includes a substantially cylindrical shaped base portion having a top opening and a substantially dome-shaped secondary wiper portion extending from the base portion that has a bottom opening defining at least one secondary wiper edge. A sponge is configured to be disposed beneath the secondary wiper portion of the collar that has an opening in substantial axial alignment with the top and bottom openings of the collar.
    Type: Grant
    Filed: August 31, 2017
    Date of Patent: December 31, 2019
    Assignee: L'Oreal
    Inventor: Christopher Tarling
  • Patent number: 10463131
    Abstract: A cosmetic device and related methods of manufacturing and using a cosmetic device. The device may comprise a porous part formed using a soluble filler and a non-porous part molded to the porous part.
    Type: Grant
    Filed: July 31, 2018
    Date of Patent: November 5, 2019
    Assignee: INOAC PACKAGING GROUP, INC.
    Inventor: Yutaka Matsui
  • Patent number: 10259907
    Abstract: The present invention relates to a novel block copolymer of structure 1, wherein, A- is a block polymer chain, B is a block polymer chain, wherein, A- and B- are chemically different, covalently connected polymer chains, which are phase separable and the moiety X(Y(Z)b)a is a junction group, which comprises a surface active pendant moiety Y(Z)b wherein: a is an integer from 1 to 4 denoting the number of surface active pendant moieties Y(Z)b on X, b is an integer from 1 to 5 denoting the number of Z moieties on the linking moiety Y, X is a linking group between the A polymer block, the B polymer block and the moiety Y, Y is a linking group or a direct valence bond between X and Z; and Z is a moiety independently selected from, a fluorine containing moiety, a Si1-Si8 siloxane containing moiety or a hydrocarbon moiety with at least 18 carbons, and further wherein the junction group X(Y(Z)b)a has a surface energy less than that that of the block A and less than that of the block B.
    Type: Grant
    Filed: February 20, 2015
    Date of Patent: April 16, 2019
    Assignees: AZ Electronic Materials (Luxembourg) S.à r.l., IBM Corporation
    Inventors: Ankit Vora, Eri Hirahara, Joy Cheng, Durairaj Baskaran, Orest Polishchuk, Melia Tjio, Margareta Paunescu, Daniel Sanders, Guanyang Lin
  • Patent number: 9598545
    Abstract: A process includes casting a solution including poly(phenylene oxide), inorganic nanoparticles, a solvent, and a non-solvent on a substrate; and removing the solvent to form a porous film; wherein: the porous film is configured for use as a porous separator for a lithium ion battery.
    Type: Grant
    Filed: January 31, 2013
    Date of Patent: March 21, 2017
    Assignee: UCHICAGO ARGONNE, LLC
    Inventors: Zhengcheng Zhang, Jung-Je Woo, Khalil Amine
  • Patent number: 9441147
    Abstract: The present invention relates to methods and compositions useful for isolating a portion of a wellbore. In one embodiment, a method includes preparing a sealant composition containing two phases. The sealant composition is placed into the wellbore where one phase sets upon subjecting the sealant composition to a thermal source followed by the setting of the other phase.
    Type: Grant
    Filed: July 9, 2010
    Date of Patent: September 13, 2016
    Assignee: Halliburton Energy Services, Inc.
    Inventors: Natasha Shirshova, Alexander Bismarck, Angelika Menner, Gary Funkhouser
  • Patent number: 9259848
    Abstract: Methods are disclosed that include forming selected perforation designs and patterns in web substrates. The perforation designs and patterns can be formed in linear or nonlinear fashion, can extend in the cross direction or the machine direction and can be formed to complement or match an embossed or printed design on the web. The perforation designs and patterns can be formed utilizing various mechanical perforating techniques.
    Type: Grant
    Filed: June 21, 2010
    Date of Patent: February 16, 2016
    Assignee: The Procter & Gamble Company
    Inventors: Matthew Todd Hupp, James Michael Singer
  • Patent number: 9120249
    Abstract: Medical implant devices are prepared from a polymeric material and a release agent, where the device is a molded, reservoir implant, and the release agent has a molecular weight (MW) of at least 1000. The release agent may be a non-ionic surfactant such as Brij 35, polyoxyetheylene(20)sorbitan trioleate, Tween 20, Tween 80, vitamin E TPGS, and a mixture of any two or more thereof. Hydrated implants may have a surface area of about 500 mm2 or greater.
    Type: Grant
    Filed: April 25, 2008
    Date of Patent: September 1, 2015
    Assignee: ENDO PHARMACEUTICALS SOLUTIONS INC.
    Inventors: Petr Kuzma, Stephanie Decker, Harry Quandt
  • Patent number: 9102771
    Abstract: A method is disclosed for producing a water-absorbent resin by a reversed-phase suspension polymerization method, wherein an odor originating from a raw material component, in particular, a petroleum hydrocarbon dispersion medium, is further reduced as compared with a water-absorbent resin obtained by a conventional method, and a water-absorbent resin obtained by the method. More specifically, a method is disclosed for producing a water-absorbent resin by performing a reversed-phase suspension polymerization of a water-soluble ethylenically unsaturated monomer in a petroleum hydrocarbon dispersion medium, comprising adding and dispersing an aqueous solution of a water-soluble ethylenically unsaturated monomer containing a hydrophilic polymeric dispersion agent to a petroleum hydrocarbon dispersion medium in the presence of a surfactant under stirring, and performing a reversed-phase suspension polymerization using a radical polymerization initiator, and a water-absorbent resin obtained by the method.
    Type: Grant
    Filed: July 20, 2011
    Date of Patent: August 11, 2015
    Assignee: SUMITOMO SEIKA CHEMICALS CO., LTD.
    Inventors: Hideki Yokoyama, Atsushi Heguri, Nobuhiro Maeda
  • Patent number: 9096746
    Abstract: There are provided a polyolefin resin composition having excellent mechanical properties and thermal resistance; a film formed of the polyolefin resin composition, which has excellent mechanical properties and thermal resistance and which is less likely to suffer from fisheyes; a microporous membrane having excellent permeability and shutdown properties in addition to the above-mentioned physical properties; and applications thereof. Such objects are accomplished by a polyolefin resin composition containing an ultra-high molecular weight ethylene polymer (A), a 4-methyl-1-pentene polymer or 3-methyl-1-pentene polymer (B), and a polymer of an olefin having 2 to 12 carbon atoms (C) at an intended ratio.
    Type: Grant
    Filed: August 29, 2012
    Date of Patent: August 4, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Nobuhisa Mikawa, Motoyasu Yasui, Akiyoshi Taguchi, Kazuto Sugiyama, Yasuhiro Kai, Kenji Sugimura
  • Patent number: 9090018
    Abstract: A crosslaminate is formed from two oriented plies of thermoplastic polymer material, arranged so that their orientation directions cross one another, the plies being heat sealed together. Each ply is semi-fibrillated, that is consist of linear thin regions of biaxially oriented material and thicker linear bosses between the thinner regions. The webs are sealed primarily through bonds formed at the intersection of the bosses (thicker regions). The array of bosses has a division less than 2 mm. The laminate has improved aesthetic and strength properties. A method for forming the crosslaminate involves segmental stretching of the material to form the thinner regions, and apparatus comprising intermeshing grooved stretching rollers having sharp-edged crests is described.
    Type: Grant
    Filed: June 13, 2012
    Date of Patent: July 28, 2015
    Assignee: The Glad Products Company
    Inventor: Ole-Bendt Rasmussen
  • Patent number: 8980964
    Abstract: A film that is formed from a thermoplastic composition is provided. The thermoplastic composition contains a rigid renewable polyester and a polymeric toughening additive. The toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. An increase in deformation force and elongational strain causes debonding to occur in the renewable polyester matrix at those areas located adjacent to the discrete domains. This can result in the formation of a plurality of voids adjacent to the discrete domains that can help to dissipate energy under load and increase tensile elongation. To even further increase the ability of the film to dissipate energy in this manner, the present inventors have discovered that an interphase modifier may be employed that reduces the degree of friction between the toughening additive and renewable polyester and thus reduces the stiffness (tensile modulus) of the film.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: March 17, 2015
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Vasily A. Topolkaraev, Ryan J. McEneany, Neil T. Scholl, Thomas A. Eby
  • Patent number: 8975305
    Abstract: A thermoplastic composition that contains a rigid renewable polyester and a polymeric toughening additive is provided. The toughening additive can be dispersed as discrete physical domains within a continuous matrix of the renewable polyester. An increase in the deformation force and elongational strain causes debonding to occur in the renewable polyester matrix at those areas located adjacent to the discrete domains. This can result in the formation of a plurality of voids adjacent to the discrete domains that can help to dissipate energy under load and increase impact strength. To even further increase the ability of the composition to dissipate energy in this manner, an interphase modifier may be employed that reduces the degree of friction between the toughening additive and renewable polyester and thus enhances the degree and uniformity of debonding.
    Type: Grant
    Filed: February 10, 2012
    Date of Patent: March 10, 2015
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Vasily A. Topolkaraev, Neil T. Scholl, Ryan J. McEneany, Thomas A. Eby
  • Publication number: 20150056492
    Abstract: A cross-linkable polyolefin composition (polyethylene, polypropylene or an ethylene-propylene copolymer) is coextruded with ultrahigh molecular weight polyethylene to form two-layer separator membranes, or three-layer separator membranes, for lithium-ion battery cells. In three-layer separator membranes, the cross-linkable polyolefin is formed as the outer faces of the separator for placement against facing surfaces of cell electrodes. The polymer materials initially contain plasticizer oil, which is removed from the extruded membranes, and the extruded membranes are also stretched to obtain a suitable open pore structure in the layered membranes to provide for suitable infiltration with a liquid electrolyte. The cross-linked polyolefin layer provides strength at elevated temperatures and the lower-melting, ultrahigh molecular weight polyethylene layer provides the separator membrane with a thermal shutdown capability.
    Type: Application
    Filed: August 21, 2013
    Publication date: February 26, 2015
    Applicant: GM GLOBAL TECHNOLOGY OPERATIONS LLC
    Inventor: XIAOSONG HUANG
  • Patent number: 8916619
    Abstract: A porosity is freely controlled in preparation of a porous polymer film by a phase separation method. A solvent absorption sheet is used for a solvent in a polymer solution so that the coating film of the polymer solution may be covered with the sheet. After that, the solvent in the film is selectively removed. Then, the resultant is immersed in a poor solvent. Thus, a porous polymer film can be produced.
    Type: Grant
    Filed: June 16, 2010
    Date of Patent: December 23, 2014
    Assignee: Canon Kabushiki Kaisha
    Inventors: Naotake Sato, Toshihiro Kikuchi, Yuichi Hashimoto, Yohei Miyauchi
  • Publication number: 20140357743
    Abstract: A method is presented for forming a collapsed foam film-like structure, the method including positioning a composition applicator adjacent to a hot non-permeable dryer surface, producing a first frothed dispersion or frothed solution from a first dispersion or solution, applying the first frothed dispersion or frothed solution to the dryer surface, allowing the first frothed dispersion or frothed solution to convert to a collapsed foam film-like structure, and scraping the collapsed foam film-like structure from the dryer surface. The method can further include producing a second dispersion or solution, blending the first dispersion or solution and the second dispersion or solution, frothing the blended dispersion or solution, applying the blended frothed dispersion or frothed solution to the dryer surface, and allowing the frothed dispersion or frothed solution to convert to a collapsed foam film-like structure.
    Type: Application
    Filed: May 30, 2013
    Publication date: December 4, 2014
    Applicant: Kimberly-Clark Worldwide, Inc.
    Inventors: Keyur Desai, Jian Qin, Jeffrey Frank Jurena, Frank Paul Abuto, Susan Elaine Shawver, Donald Eugene Waldroup, Deborah Joy Calewarts
  • Publication number: 20140243439
    Abstract: Techniques, mixtures and improved porous materials (interconnected porous constructs) that are capable of maintaining a sufficient porosity while conferring improved mechanical and physical strength to the final construct. A sacrificial construct (for example, a sacrificial material such as polymethyl methacrylate (PMMA)) is used to obtain an inverse porosity of the construct it was molded into. The process provides a less porous end material that may be used as an arthroplasty device or surgical implant (for example, an interference screw of suture anchor) among many other applications. The process employs a sacrificial material to reduce the porosity of the final construct to about 35%.
    Type: Application
    Filed: January 10, 2014
    Publication date: August 28, 2014
    Applicant: Arthrex, Inc.
    Inventors: Christopher G. Papangelou, G. Joshua Karnes
  • Publication number: 20140154491
    Abstract: Described herein are foam-like materials having substantially the same physical structure of polyurethane foams but with properties that can be tailored for a particular application. Methods of forming these foam-like materials are also described.
    Type: Application
    Filed: February 6, 2014
    Publication date: June 5, 2014
    Applicant: ALLERGAN, INC.
    Inventors: Alexei Goraltchouk, Jordan Thompson, Miriam M. Abiad, Kevin Ma, Dennis Van Epps, Nicholas J. Manesis
  • Publication number: 20140148523
    Abstract: Porous particles can be prepared using an evaporative limited coalescence process in which one or more discrete cavities are stabilized within the continuous polymeric solid phase of the porous particles. The one or more discrete cavities have inner walls and are dispersed within the continuous polymeric solid phase. The porous particles further comprise a cavity stabilizing hydrocolloid on the inner walls of the one or more discrete cavities, and an amphiphilic (low HLB) block copolymer that is disposed at the interface of the discrete cavities and the continuous polymeric solid phase.
    Type: Application
    Filed: November 28, 2012
    Publication date: May 29, 2014
    Inventors: Mridula Nair, Tamara K. Jones, Mark R. Mis
  • Patent number: 8722749
    Abstract: A method for producing foams, such as sponges, from hydrocolloids is described. A solid or semi-solid gel is formed by dissolving polymeric material in an aqueous solvent. The gel formed is allowed to set, and may optionally then be cut into the desired shape. The gel may be frozen to allow formation of ice crystals to act as porogens. Subsequently, the gel is exposed to a radiant energy field for drying under vacuum. This causes the solvent to boil and the foam or sponge is formed. Medicinally active ingredients may be included in the process, so that the sponge or foam formed contains the active ingredient dispersed within the structure. The method described provides an alternative to the conventional methods of particulate leaching or freeze drying.
    Type: Grant
    Filed: July 29, 2005
    Date of Patent: May 13, 2014
    Assignee: Enwave Corporation
    Inventors: Timothy D. Durance, Jaya Sundaram, Mareike Ressing
  • Patent number: 8691883
    Abstract: An aerogel-foam composite includes an open cell foam and an aerogel matrix polymer disposed in the open cell foam. The aerogel-foam composite has compression strength of about 15 megaPascals (MPa) or more. The open cell foam may be a polyurethane foam including a carbonate group (—OC(O)O—).
    Type: Grant
    Filed: June 21, 2011
    Date of Patent: April 8, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Myung-Dong Cho, Sang-Ho Park, Kwang-Hee Kim, Sung-Woo Hwang
  • Patent number: 8629193
    Abstract: Thin porous moldings of silicone copolymers, suitable for use as membranes in separation processes, are prepared by forming a solution or suspension of silicone copolymer in two solvents L1 and L2, casting the suspension or solution, and removing solvent L1 to form a silicone copolymer rich phase A, effecting structure formation, and then removing solvent L2 and residues of solvent L2 to form a thin porous molding.
    Type: Grant
    Filed: January 19, 2011
    Date of Patent: January 14, 2014
    Assignee: Wacker Chemie AG
    Inventors: Manfred Hoelzl, Frauke Kirschbaum, Robert Maurer, Juergen Pfeiffer, Konrad Alfons Wierer
  • Patent number: 8603681
    Abstract: The present invention relates to a novel porous film material which comprises at least one carbonaceous semimetal oxide phase, and to a process for production thereof. The invention also relates to the use of these porous film materials as a separator layer or for production of such separator layers in electrochemical cells, particularly in lithium cells and especially in lithium secondary cells.
    Type: Grant
    Filed: June 28, 2010
    Date of Patent: December 10, 2013
    Assignee: BASF SE
    Inventors: Nicole Hildebrandt, Arno Lange, Klaus Leitner, Phillip Hanefeld, Claudia Staudt
  • Patent number: 8569062
    Abstract: The present invention relates to a cryogel which contains a polyol selected from polyvinyl alcohol or galactomannan and a co-polymer of Formula I: The cryogel is formed by mixing the monomers of the co-polymer of Formula I at a temperature of less about 5 degrees C. with the polyol and a free radical initiator in an aqueous solution and polymerizing the solution to form the cryogel. The cryogel is used for culturing cells and can be decomposed by contact with a monosaccharide.
    Type: Grant
    Filed: August 8, 2011
    Date of Patent: October 29, 2013
    Assignee: Indian Institute of Technology Kanpur
    Inventor: Ashok Kumar
  • Patent number: 8563620
    Abstract: The process for the synthesis of a silica monolith comprises the following steps: hydrolysis of a silicon alkoxide in order to form a hydrolysis precursor followed by a condensation of said hydrolysis precursor in the presence of an organic solvent, in the presence of water and of a basic catalyst in order to form oligomeric clusters containing several silicon atoms; dispersion of said oligomeric clusters in a solution in order to form a sol; polymerization of the sol in order to obtain a gel via a first heat treatment, at a temperature below the boiling point of the constituents of the sol; drying of the gel via a second heat treatment; conversion of the gel to a xerogel via a third heat treatment; dehydration and densification of the xerogel until the silica monolith is obtained via a fourth heat treatment.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: October 22, 2013
    Assignees: Universite des Sciences et Technologies de Lille, Centre National de la Recherche Scientifique (CNRS)
    Inventors: Mohamed Bouazaoui, Bruno Capoen, Hicham El-Hamzaoui, Laurent Bigot, Géraud Bouwmans
  • Patent number: 8552076
    Abstract: Disclosed herein is a method of preparing a fused aerogel-polymer composite in which aerogel and an organic polymer is mixed in a dry state to adsorb polymer particles on the surface of the aerogel and are then subjected to thermal treatment, thus forming a polymer coating on the aerogel. The fused aerogel-polymer composite can be used for thermal insulation in a variety of applications. The fused aerogel-polymer composite exhibits high thermal insulation properties and superior physical strength and processability while still maintaining the properties of an aerogel that does not have a polymer coated on its surface.
    Type: Grant
    Filed: April 10, 2008
    Date of Patent: October 8, 2013
    Assignee: Samsung Electronics Co., Ltd.
    Inventor: Myung Dong Cho
  • Patent number: 8487012
    Abstract: Described herein are open celled foams including a matrix of interconnected spheres. Also described herein are methods of making open celled foams as well as making composite members with open celled foam coatings covering at least a portion of the composite member. The open celled foams described herein are silicone based materials and can be used to coat implants such as breast implants and function to encourage tissue ingrowth and reduce capsular formation.
    Type: Grant
    Filed: January 25, 2011
    Date of Patent: July 16, 2013
    Assignee: Allergan, Inc.
    Inventors: Alexei Goraltchouk, Jordan M. Thompson, Dennis E. Van Epps
  • Patent number: 8487013
    Abstract: The present invention relates to a method for producing a porous resin particle containing an aromatic vinyl compound-aromatic divinyl compound copolymer having a hydroxyl group, the method including: dissolving a monomer mixture containing an aromatic vinyl compound, an aromatic divinyl compound and a (meth)acrylic acid ester having one hydroxyl group within the molecule thereof, and a polymerization initiator in an organic solvent to obtain a solution containing the monomer mixture and the polymerization initiator; suspending the solution in water in the presence of a dispersion stabilizer; and performing a suspension copolymerization. The method of the invention is capable of easily producing a porous resin particle containing an aromatic vinyl compound-aromatic divinyl compound copolymer having a hydroxyl group, that is used as a support for solid phase synthesis and enables efficient nucleic acid synthesis.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: July 16, 2013
    Assignee: Nitto Denko Corporation
    Inventors: Kenjiro Mori, Tatsuya Konishi
  • Patent number: 8420704
    Abstract: A process for preparing a polymer composite that includes reacting (a) a multi-functional monomer and (b) a block copolymer comprising (i) a first block and (ii) a second block that includes a functional group capable of reacting with the multi-functional monomer, to form a crosslinked, nano-structured, bi-continuous composite. The composite includes a continuous matrix phase and a second continuous phase comprising the first block of the block copolymer.
    Type: Grant
    Filed: July 18, 2008
    Date of Patent: April 16, 2013
    Assignee: Regents of the University of Minnesota
    Inventors: Marc Hillmyer, Liang Chen
  • Patent number: 8389589
    Abstract: A nanoporous material exhibiting a lamellar structure is disclosed. The material comprises three or more substantially parallel sheets of an organosilicate material, separated by highly porous spacer regions. The distance between the centers of the sheets lies between 1 nm and 50 nm. The highly porous spacer regions may be substantially free of condensed material. For the manufacture of such materials, a process is disclosed in which matrix non-amphiphilic polymeric material and templating polymeric material are dispersed in a solvent, where the templating polymeric material includes a polymeric amphiphilic material. The solvent with the polymeric materials is distributed onto a substrate. Organization is induced in the templating polymeric material. The solvent is removed, leaving the polymeric materials in place. The matrix polymeric material is cured, forming a lamellar structure.
    Type: Grant
    Filed: December 18, 2008
    Date of Patent: March 5, 2013
    Assignee: International Business Machines Corporation
    Inventors: Jennifer Nam Cha, Geraud Jean-Michel Dubois, James Lupton Hedrick, Ho-Cheol Kim, Victor Yee-Way Lee, Teddie Peregrino Magbitang, Robert Dennis Miller, Willi Volksen
  • Publication number: 20130011744
    Abstract: The present invention relates to a method for producing a film containing a thermoplastic resin, the method comprising: a step of feeding a material containing a thermoplastic resin and having a pair of opposed flat portions to between a pair of rollers with the thermoplastic resin in a molten state, and a step of rolling, with the pair of rollers, the pair of flat portions being stacked, thereby welding the flat portions to each other to form a united film, wherein the material to be fed to between the rollers is two separate films each having a flat portion or one flat cylindrical film having a pair of opposed flat portions linked together by connecting portions at their end portions.
    Type: Application
    Filed: March 29, 2011
    Publication date: January 10, 2013
    Applicant: SUMITOMO CHEMICAL COMPANY, LIMITED
    Inventors: Atsuhiro Takata, Toshihiko Suzuki, Takanari Yamaguchi
  • Publication number: 20120252912
    Abstract: A process for producing a microporous polymeric object to improve the degree of freedom for its various properties, compared to conventional processes, includes: mixing a block copolymer made of three or more kinds of segments with a polymer, wherein one or more of the segments are made of monomer units having a first functional group forming ionic and/or hydrogen bond, the segments constitute a co-continuous structure having mutually-independent and continuous regions due to a phase separation based on incompatibility between the segments, and the polymer has, at other than polymer chain terminals, a second functional group forming such bond with the first functional group, thereby allowing the segments to associate with the polymer at many points; forming a co-continuous structure including a region composed of the polymer and the segments due to the phase separation; and removing the polymer from the region by weakening the bond between the functional groups.
    Type: Application
    Filed: May 8, 2012
    Publication date: October 4, 2012
    Applicant: NITTO DENKO CORPORATION
    Inventors: Takahisa KONISHI, Takuji SHINTANI, Yushu MATSUSHITA, Atsushi TAKANO, Takeshi ASARI
  • Publication number: 20120238652
    Abstract: The present invention provides a method for producing stereo complex crystals of polylactic acid, with which a polylactic acid having excellent heat resistance and containing stereo complex crystals at a high ratio can be efficiently produced, the method including: a step of dissolving in a solvent a block copolymer, which includes polylactic acid containing an L-lactic acid unit or poly lactic acid containing a D-lactic acid unit together with at least one kind of an organic polymer having a different structure from that of polylactic acid, and a polylactic acid homopolymer containing a D-lactic acid unit or a polylactic acid homopolymer containing an L-lactic acid unit, the lactic acid unit being an optical isomer that is not contained in the block copolymer, to prepare a polymer mixture solution; and a step of removing the solvent from the polymer mixture solution.
    Type: Application
    Filed: September 7, 2010
    Publication date: September 20, 2012
    Applicant: National University Corporation Gunma University
    Inventors: Hiroki Uehara, Takeshi Yamanobe, Yusuka Karaki
  • Publication number: 20120095121
    Abstract: Disclosed is a hydrophilic polyolefin sintered material which is a water-absorbing sintered material of a polyolefin resin ice having a graft chain composed of at least one molecular chain selected from hydrophilic ethylenically unsaturated group-containing monomers and their polymers. This hydrophilic polyolefin sintered material has an average porosity of 20-80% by volume and an open cell having an average pore diameter of 1-150 ?m.
    Type: Application
    Filed: July 24, 2008
    Publication date: April 19, 2012
    Inventors: Naoki Matsuoka, Minoru Yamamoto, Shigeru Nakajima, Takahiro Deguchi
  • Publication number: 20120065283
    Abstract: A composition for the manufacture of a porous, compressible article, the composition comprising a combination of: a plurality of reinforcing fibers; a plurality of polyimide fibers; and a plurality of polymeric binder fibers; wherein the polymeric binder fibers have a melting point lower than the polyimide fibers; methods for forming the porous, compressible article; and articles containing the porous, compressible article. An article comprising a thermoformed dual matrix composite is also disclosed, wherein the composite exhibits a time to peak release, as measured by FAR 25.853 (OSU test), a 2 minute total heat release, as measured by FAR 25.853 (OSU test), and an NBS optical smoke density of less than 200 at 4 minutes, determined in accordance with ASTM E-662 (FAR/JAR 25.853).
    Type: Application
    Filed: September 14, 2011
    Publication date: March 15, 2012
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Thomas ADJEI, Benny Ezekiel DAVID, Dennis LOCKYER, Craig MILNE, Erich Otto TEUTSCH
  • Patent number: 8097274
    Abstract: Provided herein are skin substitutes suitable for use in a living subject for purpose of repairing damaged tissues, methods of producing the skin substitutes and their uses. A biocomposite membrane comprising poly(?-caprolactone) (PCL) and at least one material selected from collagen and gelatin is provided. In one embodiment, the biocomposite is a 2-component membrane of PCL and gelatin. In another embodiment, the biocomposite is a 3-component membrane of PCL, collagen and gelatin. The bio-composite membrane may be used directly in vivo as a wound dressing, or as a support for cell growth on each side of the membrane to produce an in vitro cultivated artificial skin for future in vivo and/or in vitro applications.
    Type: Grant
    Filed: October 27, 2006
    Date of Patent: January 17, 2012
    Assignee: National Defense Medical Center
    Inventors: Allan Gerald Arthur Coombes, Eric Frank Adams, Niann-Tzyy Dai, Tsung-Hsun Liu, Ming-Kung Yeh
  • Patent number: 8080590
    Abstract: A porous polymeric matrix containing at least one natural polymer and at least one synthetic polymer and optionally at least one cation. Furthermore, a method of making a porous polymeric matrix involving mixing at least one natural polymer and inorganic salts with a solution comprising at least one solvent and at least one synthetic polymer to form a slurry, casting the slurry in a mold and removing the solvent to form solid matrices, immersing the solid matrices in deionized water to allow natural polymer cross-linking and pore creation to occur simultaneously, and drying the matrices to create a porous polymeric matrix; wherein the matrix contains a cation.
    Type: Grant
    Filed: June 9, 2008
    Date of Patent: December 20, 2011
    Assignee: The United States of America as represented by the Secretary of Agriculture
    Inventors: LinShu Liu, Marshall L. Fishman, Kevin B. Hicks
  • Patent number: 8076383
    Abstract: The present invention relates to a method for producing a porous resin particle having a functional group X, the method including: dissolving a radical polymerizable aromatic monovinyl monomer and a radical polymerizable aromatic divinyl monomer together with a polymerization initiator in an organic solvent to prepare a monomer solution, dispersing the monomer solution in water in the presence of a dispersion stabilizer to obtain a suspension polymerization reaction mixture, and performing a suspension copolymerization while adding, when 0 to 80% of the entire polymerization time of the suspension copolymerization is passed, a mercapto compound represented by the formula (I): HS—R—X??(I) in which R represents an alkylene group having a carbon number of 2 to 12, and the functional group X represents a functional group selected from a hydroxy group and a primary amino group, to the suspension polymerization reaction mixture; and the porous resin particle obtained by the method.
    Type: Grant
    Filed: November 5, 2008
    Date of Patent: December 13, 2011
    Assignee: Nitto Denko Corporation
    Inventors: Tatsuya Konishi, Kenjiro Mori
  • Publication number: 20110276133
    Abstract: The present specification discloses porous materials, methods of forming such porous materials, biocompatible implantable devices comprising such porous materials, and methods of making such biocompatible implantable devices.
    Type: Application
    Filed: May 10, 2011
    Publication date: November 10, 2011
    Applicant: Allergan, Inc.
    Inventors: Futian Liu, Nicholas J. Manesis, Alexei Goraltchouk, Dimitrios Stroumpoulis
  • Publication number: 20110207840
    Abstract: The present invention provides a polyolefin resin composition which is excellent in mechanical properties and dimensional stability and is particularly excellent in heat resistance, a film which is excellent in mechanical properties, dimensional stability and heat resistance because it is obtained from the polyolefin resin composition and which is particularly excellent in meltdown properties, a macroporous membrane which is excellent in permeability and shutdown properties in addition to the above properties, and uses thereof. The polyolefin resin composition of the present invention (C) comprises 85 to 50% by mass of ultrahigh-molecular weight polyethylene (A) having a specific intrinsic viscosity and 15 to 50% by mass of a polymer (B) containing a repeating unit derived from 4-methyl-1-pentene, in 100% by mass of the polyolefin resin composition (C).
    Type: Application
    Filed: November 18, 2009
    Publication date: August 25, 2011
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Shota Abe, Atsushi Morita, Kazuto Sugiyama, Mineo Kubo
  • Publication number: 20110165308
    Abstract: A porous membrane with the membrane wall constructed of a hydrophobic polymer and a hydrophilic polymer, wherein when the membrane wall is divided into 3 sections in the film thickness direction to form region “a” containing one wall surface A of the membrane wall, region “c” containing the other wall surface C and region “b” between region “a” and region “c”, the hydrophilic polymer content ratio Ca in region “a” is greater than the hydrophilic polymer content ratio Cc in region “c”, and the mean pore size of the wall surface C is larger than the mean pore size of the wall surface A.
    Type: Application
    Filed: September 24, 2009
    Publication date: July 7, 2011
    Applicant: ASAHI KASEI CHEMICALS CORPORATION
    Inventor: Satoshi Shiki
  • Publication number: 20110123456
    Abstract: A polymeric hollow nanoshell or nanosphere for release of an agent is described, wherein the hollow nanosphere comprises at least one biodegradable polymer, characterised in that the polymer is cross-linked. The biodegradable mono-disperse nanospheres described are suitable for use as carriers of biomolecules, therapeutic agents and/or imaging agents.
    Type: Application
    Filed: September 20, 2010
    Publication date: May 26, 2011
    Inventors: Abhay Pandit, Gildas Rethore, Hemantkumar Naik, Yvonne Lang, David Finn
  • Patent number: 7947752
    Abstract: Disclosed is a microporous high density polyethylene film for a battery separator and a method of producing the same. The microporous high density polyethylene film includes high density polyethylene with a weight average molecular weight of 2×105-5×105, containing 5 wt % or less molecule with a molecular weight of 1×104 or less. The microporous high density polyethylene film has tensile strengths of 1,100 kg/cm2 or more in transverse and machine directions respectively, a puncture strength of 0.22 N/?m or more, a gas permeability (Darcy's permeability constant) of 1.3×10?5 Darcy or more, and shrinkages of 5% or less in machine and transverse directions, respectively. Particularly, the microporous high density polyethylene film has an excellent extrusion-compoundabiliy and stretchability and a high productivity, and can improve the performances and stability of a battery produced using the same.
    Type: Grant
    Filed: February 12, 2008
    Date of Patent: May 24, 2011
    Assignee: SK Energy Co., Ltd.
    Inventors: Young Keun Lee, Jang Weon Rhee, Won Young Cho, Jung Moon Sung, Byoung Cheon Jo, Chol Ho Lee, In Hwa Jung, Byung Rae Jung
  • Publication number: 20110091706
    Abstract: Porous infusible polymer (IP) parts are made by incorporating 0.2 to 10 volume percent organic fibers, preferably with short lengths, into the particulate IP, consolidating the mixture under pressure and optionally heating, and then “burning off” the fibers. After the fibers are burned off the resulting part has porosity in which the pores are elongated, usually retaining the shape of the organic fibers. When these parts are exposed to moisture (which they usually absorb) and then suddenly heated they tend not to blister from vaporization of the water. This makes them useful as parts for aircraft (jet) and other engines and other applications where sudden temperature increase may occur.
    Type: Application
    Filed: December 21, 2010
    Publication date: April 21, 2011
    Applicant: E. I. DU PONT DE NEMOURS AND COMPANY
    Inventor: Thomas P. Gannett
  • Patent number: 7887727
    Abstract: The present invention relates to a process for manufacturing a microporous polyolefin film which can be used for various battery separators, separating filters and membranes for microfiltration. The process for manufacturing a microporous polyolefin film according to the invention comprises mixing/extrusion through efficient and separate injection of 15-55% by weight of polyolefin (Component I), and 85-45% by weight of a diluent (Component II) which forms thermodynamic single phase with the polyolefin and a diluent (Component III) which can undergo thermodynamic liquid-liquid phase separation with the polyolefin, into an extruder.
    Type: Grant
    Filed: December 12, 2007
    Date of Patent: February 15, 2011
    Assignee: SK Energy Co., Ltd.
    Inventors: Young-keun Lee, Jang-weon Rhee, Gwi-gwon Kang, In-hwa Jung
  • Patent number: 7850942
    Abstract: A method of making mesoporous carbon beads comprises steps of providing a nucleophilic component such as phenolic compound or phenol condensation prepolymer, dissolving the nucleophilic component in a pore former, together with at least one electrophilic cross-linking agent such as formaldehyde, paraformaldehyde, furfural and hexamethylene tetramine, dispersing the resulting solution into a mineral oil to form beads, condensing both the component and the agent in the presence of the pore former to form beads of porous resin, removing the beads from the mineral oil and carbonizing the beads to form mesoporous carbon beads.
    Type: Grant
    Filed: May 7, 2007
    Date of Patent: December 14, 2010
    Assignee: British American Tobacco (Investments) Ltd.
    Inventors: Stephen Robert Tennison, Oleksundr Prokopovych Kozynchenko, Volodymyr Vasyljovych Strelko, Andrew John Blackburn
  • Patent number: 7838567
    Abstract: Foams composed of water-absorbing basic polymers, obtainable by (I) foaming a crosslinkable aqueous mixture including (a) at least one basic polymer whose basic groups have optionally been neutralized, (b) at least one crosslinker, (c) at least one surfactant, (d) optionally at least one solubilizer, (e) optionally thickeners, foam stabilizers, fillers, fibers and/or cell nucleators, and (f) optionally particulate water-absorbing acidic polymers, by dissolving a gas which is inert toward free radicals in the crosslinkable aqueous mixture under a pressure from 2 to 400 bar and subsequently decompressing the crosslinkable aqueous mixture to atmospheric or by dispersing fine bubbles of a gas which is inert toward free radicals, and (II) crosslinking the foamed mixture to form a hydrogel foam and if applicable adjusting the water content of the polymer foam to 1-60% by weight.
    Type: Grant
    Filed: January 30, 2003
    Date of Patent: November 23, 2010
    Assignee: Basf Aktiengesellschaft
    Inventors: Samantha Champ, Hans-Joachim Hähnle, Martin Beck, Rüdiger Funk
  • Publication number: 20100292077
    Abstract: A process for preparing a polymer composite that includes reacting (a) a multi-functional monomer and (b) a block copolymer comprising (i) a first block and (ii) a second block that includes a functional group capable of reacting with the multi-functional monomer, to form a crosslinked, nano-structured, bi-continuous composite. The composite includes a continuous matrix phase and a second continuous phase comprising the first block of the block copolymer.
    Type: Application
    Filed: July 18, 2008
    Publication date: November 18, 2010
    Inventors: Marc Hillmyer, Liang Chen
  • Patent number: 7799839
    Abstract: Disclosed are porous material having hierarchical pore structure and preparation method thereof. A method of synthesizing a nanoporous material having high functionality as a support for bioactive material is combined with a three-dimensional rapid prototyping technique. Thereby, the porous material of the invention has interconnected pores of respective size regions and uneven surface corresponding to each size region, and thus conditions favorable for adhesion, division, proliferation, movement, and differentiation of cells are provided, thereby exhibiting efficient applications in various fields, in addition to bone fillers, restorative materials, and scaffolds.
    Type: Grant
    Filed: July 10, 2007
    Date of Patent: September 21, 2010
    Assignee: Korea Institute of Machinery & Materials
    Inventors: Hui-suk Yun, Seung-Eon Kim
  • Patent number: 7691911
    Abstract: The present invention relates to cross-linked polyolefin aerogels in simple and fiber-reinforced composite form. Of particular interest are polybutadiene aerogels. Especially aerogels derived from polybutadienes functionalized with anhydrides, amines, hydroxyls, thiols, epoxies, isocyanates or combinations thereof.
    Type: Grant
    Filed: November 28, 2005
    Date of Patent: April 6, 2010
    Assignee: Aspen Aerogels, Inc.
    Inventors: Je Kyun Lee, Gerogle L. Gould
  • Patent number: 7671100
    Abstract: Gelled biopolymer based foams are disclosed. The gelled foams comprise a cross-linked biopolymer, preferably alginate; optionally, a foaming agent such as hydroxy propyl methyl cellulose; and a plasticizer, preferably glycerin sorbitol, or a mixture thereof, that forms the predominant portion of the gelled foam. The foams are soft and pliable and have high absorbency. They are used as wound dressing materials, controlled release delivery systems, cell culture, barrier media for preventing tissue adherence, and bioabsorbable implants. They also have various personal care applications, especially in oral hygiene, and can be used in food applications.
    Type: Grant
    Filed: November 3, 2006
    Date of Patent: March 2, 2010
    Assignee: FMC Biopolymer AS
    Inventors: Olav Gaserod, Peder Oscar Andersen, Rolf Myrvold