Carboxylic Acid Contains At Least Four Carboxylic Acid Groups Or Is A Derivative Of A Carboxylic Acid Containing At Least Four Carboxylic Groups Patents (Class 528/353)
  • Patent number: 10374247
    Abstract: The present invention relates to a porous support, a preparation method therefor, and a reinforced membrane containing the same, wherein the porous support comprises a nanoweb in which nanofibers are integrated in the form of a nonwoven fabric comprising a plurality of pores, and the nanoweb has an elongation at break of 1-10%. The porous support has excellent air permeability and water permeability, remarkable durability, heat resistance and chemical resistance, and excellent mechanical strength and processability.
    Type: Grant
    Filed: February 24, 2015
    Date of Patent: August 6, 2019
    Assignee: KOLON FASHION MATERIAL. INC.
    Inventors: Heung Ryul Oh, Sung Jin Kim, Yong Hwan Lee, Hwan Kwon Rho, Chul Ki Kim, Jeong Young Choi, Jun Young Park, Ji Suk Baek
  • Patent number: 10316144
    Abstract: The invention provides a selenium-containing polyimide polymer, preparation method and use thereof. The method comprises: (1) polymerizing a selenide diamine monomer with a dianhydride monomer to give a selenium-containing polyamic acid; and (2) performing thermal imidization on the selenium-containing polyamic acid obtained in the step (1) to give a selenium-containing polyimide polymer. In the invention, selenium is introduced into polyimides for increasing refractive index to 1.7-1.82, this greatly improves the defects of low refractive index of the existing polyimide materials, thereby expanding its applications in the optics field.
    Type: Grant
    Filed: December 16, 2016
    Date of Patent: June 11, 2019
    Assignee: SOOCHOW UNIVERSITY
    Inventors: Jian Zhu, Qilong Li, Chunlai Ding, Huinan Jiang, Xiulin Zhu
  • Patent number: 10226743
    Abstract: Provided are a gas separation composite membrane including a gas separation layer which is formed to include a polyimide compound on the upper side of a gas permeating support, in which the solubility of the polyimide compound in dimethylacetamide at 20° C. is 20 mg/100 g or less, and the thickness of the gas separation layer is 0.1 ?m or greater and less than 5.0 ?m, a method of producing the same, a gas separation module using the gas separation composite membrane, a gas separation device, and a gas separation method.
    Type: Grant
    Filed: July 5, 2016
    Date of Patent: March 12, 2019
    Assignee: FUJIFILM Corporation
    Inventors: Takayasu Nagai, Daisuke Sawai, Satoshi Sano
  • Patent number: 10201682
    Abstract: Some embodiments of a medical device anchor system include an anchor device that secures a medical instrument (such as a catheter or the like) in place relative to a skin penetration point using subcutaneous anchors. In some implementations, the anchor device can be installed using a technique in which the subcutaneous anchors undergo relatively little or no flexing when being inserted through the skin into the subcutaneous region between the skin and underlying muscle tissue which may be occupied by fatty tissue.
    Type: Grant
    Filed: May 5, 2017
    Date of Patent: February 12, 2019
    Assignee: INTERRAD Medical, Inc.
    Inventors: Michael S. Rosenberg, Mark R. Christianson, Kyle P. Taylor, Andrew T. Forsberg
  • Patent number: 10177022
    Abstract: The present invention provides a temporary-bonding adhesive having excellent heat resistance, whereby a semiconductor circuit formation substrate and a support substrate can be bonded by a single type of adhesive layer, the adhesive force thereof does not change over the course of steps for manufacturing a semiconductor device or the like, and the adhesive can subsequently be easily de-bonded at room temperature under mild conditions; and a method for manufacturing a semiconductor device using the temporary-bonding adhesive. The present invention includes a temporary-bonding adhesive wherein a polyimide copolymer having at least an acid dianhydride residue and a diamine residue, the diamine residue including both of (A1) a polysiloxane-based diamine residue represented by a general formula (1) in which n is a natural number from 1 to 15, and (B1) a polysiloxane-based diamine residue represented by a general formula (1) in which n is a natural number from 16 to 100, the polyimide copolymer containing 40-99.
    Type: Grant
    Filed: August 5, 2015
    Date of Patent: January 8, 2019
    Assignee: Toray Industries, Inc.
    Inventors: Shinji Arimoto, Takenori Fujiwara, Masao Tomikawa
  • Patent number: 9902810
    Abstract: The present invention addresses the problem of providing: a polyimide film that has a small phase difference in the thickness direction and has a low coefficient of linear thermal expansion; and a polyamic acid and varnish to obtain the same. In order to solve this problem, the present invention provides a polyimide film which comprises polyimide that is produced by reacting a diamine component and a tetracarboxylic dianhydride component, the polyimide film having a coefficient of linear thermal expansion of 35 ppm/K or less over a temperature range of 100 to 200 DEG C, an absolute value of phase difference in the thickness direction of 200 nm or less per 10 ?m thickness, a glass transition temperature of 260 DEG C or more, and a total light transmittance of 85% or more.
    Type: Grant
    Filed: April 1, 2014
    Date of Patent: February 27, 2018
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Tatsuhiro Urakami, Masaki Okazaki, Kenichi Fukukawa, Yoshihiro Sakata, Atsushi Okubo
  • Patent number: 9833977
    Abstract: A substrate structure applied in flexible electrical devices is provided. The substrate structure includes a carrier, a first material layer overlying the carrier with a first area, a second material layer overlying the first material layer and the carrier with a second area, and a flexible substrate overlying the second material layer, the first material layer and the carrier with a third area, wherein the second area is larger than or equal to the first area, the third area is larger than the second area, and the flexible substrate has a greater adhesion force than that of the first material layer to the carrier. The invention also provides a method for fabricating the substrate structure.
    Type: Grant
    Filed: December 1, 2009
    Date of Patent: December 5, 2017
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chyi-Ming Leu, Yueh-Chuan Huang, Yung Lung Tseng
  • Patent number: 9788432
    Abstract: Polymer materials make useful materials as electrode array bodies for neural stimulation. They are particularly useful for retinal stimulation to create artificial vision. Regardless of which polymer is used, the basic construction method is the same. A layer of polymer is laid down. A layer of metal is applied to the polymer and patterned by wet etch to create electrodes and leads for those electrodes. The base polymer layer is activated. A second layer of polymer is applied over the metal layer and patterned to leave openings for the electrodes, or openings are created later by means such as laser ablation. Hence the array and its supply cable are formed of a single body.
    Type: Grant
    Filed: June 2, 2015
    Date of Patent: October 10, 2017
    Assignee: Second Sight Medical Products, Inc.
    Inventors: Robert J Greenberg, Jerry Ok, Jordan Matthew Neysmith, Brian V Mech, Neil Hamilton Talbot
  • Patent number: 9631090
    Abstract: A method for using citraconic anhydride and itaconic anhydride as addition cure end caps in reactions for forming polyamic acid oligomers and polyimide oligomers, is provided. Prepregs and high temperature adhesives made from the resulting oligomers, as well as, high temperature, low void volume composites made from the prepregs, are also provided.
    Type: Grant
    Filed: June 20, 2011
    Date of Patent: April 25, 2017
    Assignee: I.S.T. (MA) Corporation
    Inventors: Gary L. Deets, Jianming Xiong
  • Patent number: 9315620
    Abstract: The present invention relates to (per)fluoropolymer compositions, in particular to (per)fluoropolyether compositions comprising:—a (per)fluoropolymer having more than two carboxy groups and—a polyamine. The invention further relates to processes for preparing said compositions and to molded articles obtained from said compositions.
    Type: Grant
    Filed: July 17, 2012
    Date of Patent: April 19, 2016
    Assignee: SOLVAY SPECIALTY POLYMERS ITALY S.P.A.
    Inventors: Vincenzo Arcella, Claudio Adolfo Pietro Tonelli, Solange Barbieri
  • Patent number: 9304356
    Abstract: A liquid crystal display including a first substrate and a second substrate facing each other, a first alignment layer disposed on the first substrate, the first alignment layer including a vertical photo-alignment material, a second alignment layer disposed on the second substrate, the second alignment layer including a vertical alignment material, and a liquid crystal layer disposed between the first substrate and the second substrate.
    Type: Grant
    Filed: November 3, 2011
    Date of Patent: April 5, 2016
    Assignee: SAMSUNG DISPLAY CO., LTD.
    Inventors: Suk Hoon Kang, Jun Woo Lee, Baek Kyun Jeon, Kyoung Tae Kim, Soo-Ryun Cho
  • Patent number: 9243119
    Abstract: Disclosed is a polyimide film, which is colorless and transparent, with superior mechanical properties and high thermal stability.
    Type: Grant
    Filed: August 27, 2008
    Date of Patent: January 26, 2016
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Hak Gee Jung, Hyo Jun Park, Sang Min Song, Chung Seock Kang
  • Patent number: 9139707
    Abstract: A method of producing a composite material, comprising an assembly of natural fibers, impregnated with an amorphous or semi-crystalline thermoplastic polymer, said method including: i) a step of impregnating said assembly with a precursor composition in the molten state and including: a) at least one prepolymer P(X)n of said thermoplastic polymer, having a molecular chain P having, at the ends of same, n reactive functions X, with n ranging from 1 to 3, in particular n being 1 or 2, and preferably 2 b) at least one chain extender Y-A-Y including reactive functions Y with at least one of said functions X ii) a step of polymerization by mass (poly)addition, in the molten state, of said prepolymer with said chain extender with: said thermoplastic polymer being the result of said polymerization by mass polyaddition and said impregnation i) and polymerization ii) taking place at a temperature lower than 250° C.
    Type: Grant
    Filed: May 30, 2013
    Date of Patent: September 22, 2015
    Assignee: ARKEMA FRANCE
    Inventors: Gilles Hochstetter, Marc Audenaert, Thierry Briffaud
  • Patent number: 9127363
    Abstract: An article having at least one fluorinated porous layer having a basis weight of about 10 to about 300 grams per square meter and a thickness of about 0.20 to about 20 millimeters. The porous layer also exhibits a Q200 of greater than about 1.1.
    Type: Grant
    Filed: January 11, 2011
    Date of Patent: September 8, 2015
    Assignee: 3M Innovative Properties Company
    Inventors: Moses M. David, Gina M. Buccellato, John S. Huberty, Seth M. Kirk
  • Patent number: 9127127
    Abstract: A method for the manufacture of a polyetherimide composition includes catalyzing the reaction of a dianhydride and an organic diamine with a catalyst selected from guanadinium salts, pyridinium salts, imidazolium salts, tetra(C6-24)aryl ammonium salts, tetra(C7-24 arylalkylene) ammonium salts, dialkyl heterocycloaliphatic ammonium salts, bis-alkyl quaternary ammonium salts, (C7-24arylalkylene)(C1-16alkyl) phosphonium salts, (C6-24aryl)(C1-16alkyl)phosphonium salts, phosphazenium salts and combinations thereof, optionally in the presence of a solvent.
    Type: Grant
    Filed: October 11, 2012
    Date of Patent: September 8, 2015
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Thomas Link Guggenheim, Roy Ray Odle, Farid Fouad Khouri
  • Patent number: 9101135
    Abstract: An object of the present invention is to provide insecticides having high effectiveness.
    Type: Grant
    Filed: June 24, 2014
    Date of Patent: August 11, 2015
    Assignee: MITSUI CHEMICALS, INC.
    Inventors: Kei Yoshida, Takeo Wakita, Hiroyuki Katsuta, Akiyoshi Kai, Yutaka Chiba, Kiyoshi Takahashi, Hiroko Kato, Nobuyuki Kawahara, Michikazu Nomura, Hidenori Daido, Junji Maki, Shinichi Banba, Atsuko Kawahara
  • Patent number: 9096566
    Abstract: A polyesterimide having a repeating unit expressed by formula (3) is useful for FPC substrates, COF substrates and TAB substrate materials, especially as FPC substrate materials: wherein R represents a phenyl group, R1 represents an alkyl group with 1 to 6 carbon atoms or alkoxy group with 1 to 6 carbon atoms, n each independently takes a value of 0 to 4, a each independently takes a value of 0 to 4, and m represents an integer of 2 to 4, where not all n's are 0 at the same time and 0?n+a?4 is satisfied by each phenylene group, and X is a divalent aromatic group and/or aliphatic group.
    Type: Grant
    Filed: February 12, 2010
    Date of Patent: August 4, 2015
    Assignee: Honshu Chemical Industry Co., Ltd.
    Inventors: Masatoshi Hasegawa, Tadashi Hiramine, Yuuki Hashimoto
  • Patent number: 9096760
    Abstract: Thermoplastic compositions having miscible and compatible immiscible polymer blends are disclosed. The miscible polymer blends have a single glass transition temperature. The compatible polymer blends have two glass transition temperatures.
    Type: Grant
    Filed: March 19, 2013
    Date of Patent: August 4, 2015
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Robert Russell Gallucci, Tara Mullen, Roy Odle, Kapil Chandrakant Sheth, James M. White
  • Patent number: 9052654
    Abstract: A polyamic acid composition includes a conductive carbon black and a polyamic acid in which a diamine compound, a tetracarboxylic acid dianhydride, and an acid monoanhydride have been reacted at a quantitative ratio satisfying the following Relational Expression (1) and Relational Expression (2). In Relational Expressions (1) and (2), X represents a content by mol of the diamine compound, Y represents a content by mol of the tetracarboxylic acid dianhydride, and Z represents a content by mol of the acid monoanhydride. 0.962?Y/X?0.997??Relational Expression (1) 0.20?Z/2(X?Y)<0.80.
    Type: Grant
    Filed: March 11, 2009
    Date of Patent: June 9, 2015
    Assignee: FUJI XEROX CO., LTD.
    Inventor: Kenya Sonobe
  • Publication number: 20150147554
    Abstract: A composition for preparing a polyimide including a tetracarboxylic dianhydride mixture including a tetracarboxylic dianhydride represented by Chemical Formula 1A, Chemical Formula 1B, or a combination thereof, a tetracarboxylic dianhydride represented by Chemical Formula 2, and a diamine represented by Chemical Formula 3: NH2—R1—NH2 ??Chemical Formula 3 wherein in Chemical Formulae 1A, 1B, 2 and 3, definitions of groups and substituents are described in the specification.
    Type: Application
    Filed: November 21, 2014
    Publication date: May 28, 2015
    Inventors: Jungha CHAE, Byung Hee SOHN
  • Publication number: 20150118472
    Abstract: A process includes the steps of: casting or coating a polyamic acid organic solvent solution on a support and drying the polyamic acid organic solvent solution thereon, so as to form a partially cured and/or partially dried polyamic acid film; dipping the polyamic acid film in tertiary amine or a solution of tertiary amine, or coating tertiary amine or a solution of tertiary amine on the polyamic acid film; and drying the film while imidizing the polyamic acid. In another process, a chemical converting agent and a catalyst are mixed in an organic solvent solution of polyamic acid. After casting and heating the mixture on a support, a partially cured and/or partially dried polyamic acid film is detached from the support. The film contains, with respect to the remaining volatile component, not less than 50 parts of catalyst, not more than 30 parts of solvent, and not more than 20 parts of chemical converting agent and/or a chemical converting agent derived component.
    Type: Application
    Filed: December 24, 2014
    Publication date: April 30, 2015
    Applicant: KANEKA CORPORATION
    Inventors: Hisayasu Kaneshiro, Toshihisa Itoh, Katsunori Yabuta, Kiyokazu Akahori
  • Patent number: 9018343
    Abstract: Disclosed herein is a polyamide-imide copolymer film, comprising a copolymer resin in which a unit structure derived from TFDB (2,2?-bistrifluoromethyl-4,4?-biphenyl diamine), a unit structure derived from 6FDA (4,4?-(hexa-fluoroisopropylidene)diphthalic anhydride), a unit structure derived from BPDA (3,3?,4,4?-biphenyltetracarboxylic dianhydride) and a unit structure derived from TPC (terephthaloyl chloride or 1,4-benzenedicarbonyl chloride) are copolymerized, wherein the copolymer resin has a weight average molecular weight of 10,000˜400,000.
    Type: Grant
    Filed: September 27, 2012
    Date of Patent: April 28, 2015
    Assignee: Kolon Industries, Inc.
    Inventors: Hyo Jun Park, Hak Gee Jung
  • Patent number: 9012595
    Abstract: The present invention provides polyimide applied to the buffer coating of semiconductors and a photosensitive resin composition including the same. The polyimide is a polyimide polymer represented by Chemical Formula 1 below. Further, the present invention provides a photosensitive resin composition, including 1) BDA-series soluble polyimide having an i-ray permeability of 70% or more; 2) a polyamic acid having elongation of 40% or more; 3) a novolak resin, and 4) diazonaphthoquinone-series photosensitive substance and having a high resolution, high sensitivity, an excellent film characteristic, and mechanical physical properties which are the requirements of semiconductor buffer coating.
    Type: Grant
    Filed: November 5, 2010
    Date of Patent: April 21, 2015
    Assignee: LG Chem, Ltd.
    Inventors: Sang Woo Kim, Chanhyo Park, Kyungjun Kim, Hyeran Seong, Sejin Shin, Hye Won Jeong, Jung Ho Jo
  • Publication number: 20150079005
    Abstract: Nanocarriers are synthesized with polymers that respond to lower pH and/or ROS by being degraded. The compositions may be utilized to selectively deliver payloads within patients by responding to lower pH and/or ROS at localities within the patient. The present invention also features methods of synthesizing nanocarriers that are degraded by lower pH and/or ROS.
    Type: Application
    Filed: May 7, 2014
    Publication date: March 19, 2015
    Applicant: The Regents of the University of California
    Inventors: Adah Almutairi, Jagadis Sankaranarayanan, Enas Mahmoud, Eric Schopf
  • Patent number: 8979324
    Abstract: An optical device structure with a light outcoupling layer is provided. The optical device structure includes a substrate having a first surface and a second surface, and a layer of polyimide (PI) or its copolymer formed on the first surface of the substrate, wherein the layer of polyimide or its copolymer is prepared from at least one aromatic diamine and at least one cycloaliphatic dianhydride, and an optical component formed on the layer of polyimide or its copolymer.
    Type: Grant
    Filed: August 9, 2012
    Date of Patent: March 17, 2015
    Assignee: Industrial Technology Research Institute
    Inventors: Yueh-Chuan Huang, Chyi-Ming Leu, Meng-Ting Hsieh
  • Patent number: 8975365
    Abstract: A cage 1,2,3,4-cyclopentanetetracarboxylic acid (1,3:2,4)-dianhydride compound represented by formula [1], and a polyimide obtained by condensing the compound with a diamine. With the compound, it is possible to provide a polyimide which shows no absorption in the ultraviolet region and is highly transparent to light, has high insulating properties, has improved heat resistance and processability, and has excellent solubility in organic solvents. (In formula [1], R1 and R2 each independently represents a hydrogen atom, a halogen atom, or a C1-10 alkyl.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: March 10, 2015
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Hideo Suzuki, Takahiro Noda
  • Patent number: 8969486
    Abstract: Disclosed are a liquid crystal alignment agent, a liquid crystal alignment film manufactured using the same, and a liquid crystal display including the liquid crystal alignment film. The liquid crystal alignment agent includes a polymer comprising a polyamic acid including a repeating unit represented by Chemical Formula 1, polyimide including a repeating unit represented by Chemical Formula 2, or a combination thereof: wherein Y1 and Y2 are each independently a divalent organic group derived from diamine, wherein the diamine includes photodiamine represented by Chemical Formula 3 and functional diamine represented by Chemical Formula 5: and wherein the other substituents are the same as defined in the detailed description.
    Type: Grant
    Filed: August 22, 2012
    Date of Patent: March 3, 2015
    Assignee: Cheil Industries Inc.
    Inventors: Jae-Deuk Yang, Yong-Sik Yoo, Guk-Pyo Jo
  • Patent number: 8962790
    Abstract: A process includes the steps of: casting or coating a polyamic acid organic solvent solution on a support and drying the polyamic acid organic solvent solution thereon, so as to form a partially cured and/or partially dried polyamic acid film; dipping the polyamic acid film in tertiary amine or a solution of tertiary amine, or coating tertiary amine or a solution of tertiary amine on the polyamic acid film; and drying the film while imidizing the polyamic acid. In another process, a chemical converting agent and a catalyst are mixed in an organic solvent solution of polyamic acid. After casting and heating the mixture on a support, a partially cured and/or partially dried polyamic acid film is detached from the support. The film contains, with respect to the remaining volatile component, not less than 50 parts of catalyst, not more than 30 parts of solvent, and not more than 20 parts of chemical converting agent and/or a chemical converting agent derived component.
    Type: Grant
    Filed: February 13, 2007
    Date of Patent: February 24, 2015
    Assignee: Kaneka Corporation
    Inventors: Hisayasu Kaneshiro, Toshihisa Itoh, Katsunori Yabuta, Kiyokazu Akahori
  • Publication number: 20150051341
    Abstract: A thermosetting solution composition composed of a biphenyltetracarboxylic acid compound containing a partial lower aliphatic alkyl ester of 2,3,3?,4?-biphenyltetracarboxylic acid and/or a partial lower aliphatic alkyl ester of 2,2?,3,3?-biphenyltetracarboylic acid, an aromatic diamine compound in a molar amount larger than a molar amount of the biphenyltetracarboxylic acid compound, a partial lower aliphatic alkyl ester of 4-(2-phenylethynyl)phthalic acid compound in a molar amount as much as 1.8-2.2 times a molar amount corresponding to a difference between the molar amount of the aromatic diamine compound and the molar amount of the biphenyltetracarboxylic acid compound, and an organic solvent composed of a lower aliphatic alcohol is of value for manufacture of a prepreg.
    Type: Application
    Filed: March 14, 2013
    Publication date: February 19, 2015
    Inventors: Norio Miura, Hiroaki Yamaguchi, Hideki Ozawa, Mitsushi Taguchi
  • Publication number: 20150045501
    Abstract: The present invention relates to semiaromatic semicrystalline thermoplastic copolyimides obtained by polymerization of at least: (a) an aromatic compound comprising two anhydride functions and/or carboxylic acid and/or ester derivatives thereof; (b) a diamine of formula (I) NH2-R—NH2 in which R is a divalent aliphatic hydrocarbon-based radical optionally comprising heteroatoms, the two amine functions being separated by a number X of carbon atoms, X being between 4 and 12; and (c) a diamine of formula (II) NH2-R?—NH2 in which R? is a divalent aliphatic hydrocarbon-based radical optionally comprising heteroatoms, the two amine functions being separated by a number Y of carbon atoms, Y being between 10 and 20; it being understood that diamine (b) is different from diamine (c).
    Type: Application
    Filed: September 18, 2012
    Publication date: February 12, 2015
    Inventor: Stéphane Jeol
  • Patent number: 8927678
    Abstract: A thermoplastic polyimide resin containing a repeating structural unit represented by the following formula (1) and a repeating structural unit represented by the following formula (2), a content ratio of the repeating structural unit of formula (2) with respect to the total of the repeating structural unit of formula (1) and the repeating structural unit of formula (2) being from 40 to 70% by mol: wherein R1 represents a divalent group having from 6 to 22 carbon atoms containing at least one alicyclic hydrocarbon structure; R2 represents a divalent chain aliphatic group having from 5 to 12 carbon atoms; and X1 and X2 each independently represent a tetravalent group having from 6 to 22 carbon atoms containing at least one aromatic ring.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: January 6, 2015
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yuuki Sato, Jun Mitadera
  • Publication number: 20140378645
    Abstract: A problem of the present invention is to provide a liquid crystal aligning agent which never deteriorates even in a method where UV is irradiated such as a liquid crystal dropping method or the like, and is capable of forming a liquid crystal alignment film having high UV resistance.
    Type: Application
    Filed: January 7, 2013
    Publication date: December 25, 2014
    Inventors: Atsushi Kozaki, Michihiko Sato
  • Patent number: 8901274
    Abstract: Polyimide oligomers of the general formula: M-(Z—Y—X—Y—Z)n-M wherein n is an integer of 1 to 20; X comprises an aromatic diamine containing 2-4 aryl moieties, each of which contains 0-4 substituents; Z is independently the same as X or is a different aromatic diamine containing 1-4 aryl moieties, each of which contains 0-4 substituents; Y comprises an aromatic dianhydride containing 1-4 aryl moieties, each of which contains 0-4 substituents; and M is independently the same as Y or is a substituted or unsubstituted anhydride, a substituted or unsubstituted dianhydride, a substituted or unsubstituted bisimide, or a substituted or unsubstituted monomeric or oligomeric phthalonitrile.
    Type: Grant
    Filed: August 24, 2012
    Date of Patent: December 2, 2014
    Assignee: Lonza Group, Ltd.
    Inventors: Sajal Das, Vilas M. Chopdekar, Megan B. Casey
  • Publication number: 20140343223
    Abstract: This disclosure relates to a process of purifying a polymer. The process includes (a) providing an organic solution containing a polyimide or polyamic ester in at least one polar, aprotic polymerization solvent; (b) adding at least one purification solvent to the organic solution to form a diluted organic solution, the at least one purification solvent is less polar than the at least one polymerization solvent and has a lower water solubility than the at least one polymerization solvent at 25° C.; (c) washing the diluted organic solution with water or an aqueous solution to obtain a washed organic solution; and (d) removing at least a portion of the at least one purification solvent in the washed organic solution to obtain a solution containing a purified polyimide or polyamic ester. This disclosure also relates to a process of preparing a film on a semiconductor substrate, as well as related purified polymer solutions, films, and articles.
    Type: Application
    Filed: May 19, 2014
    Publication date: November 20, 2014
    Applicant: Fujifilm Electronic Materials U.S.A., Inc.
    Inventors: William A. Reinerth, Sanjay Malik, Binod B. De
  • Publication number: 20140336353
    Abstract: Disclosed are salt compositions of lysinol and dicarboxylic acids; and lysinol derived polymers including polyamide, polyimide, polyurea, cross-linked polyurea comprising urethane linkages, polyurea foams, cross-linked polyurea foams, and lysinol-epoxy thermoset.
    Type: Application
    Filed: July 22, 2014
    Publication date: November 13, 2014
    Inventors: KENNETH GENE MOLOY, MARK A. SCIALDONE, MANXUE WANG
  • Patent number: 8871894
    Abstract: There is provided a simple production method of a polyhydroxyimide. A production method of a polyhydroxyimide, characterized by comprising adding to a polyhydroxyimide precursor containing a repeating structure of Formula (1): in which X is a tetravalent aliphatic group or aromatic group, Y is an organic group containing an aromatic group substituted with at least one OH group, and n is an integer of 1 or more, at least a compound of Formula (2) or Formula (3): in which R1 to R4 or R5 to R8 are independently a hydrogen atom or a monovalent organic group, and m is a natural number, and heating the resultant reaction mixture at a temperature of 50° C. or more to obtain a polyimide having a weight average molecular weight measured by gel permeation chromatography (GPC) in terms of polystyrene of 5,000 to 100,000.
    Type: Grant
    Filed: April 22, 2010
    Date of Patent: October 28, 2014
    Assignee: Nissan Chemical Industries, Ltd.
    Inventor: Kazuya Ebara
  • Patent number: 8865273
    Abstract: A photoalignment compound is represented by the following Chemical Formula 1, wherein “x” represents an integer in a range of 1 to 4, each of R1 and R2 represents —(CH2)n—, “n” represents an integer in a range of 1 to 6, at least one of the (—CH2-)s in R1 is replaceable with R3 represents —(CH2)mCH3, “m” represents an integer in a range of 1 to 12, each hydrogen atom of R3 is replaceable with F or Cl, R4 represents an amino group, aniline group, carboxy group, hydroxyl group, cyano group, alkylene group, or functional groups being represented by the following Chemical Formulas 2, 3, 4, or 5, each hydrogen atom of Chemical Formula 1 is replaceable with —O(CH2)kCH3, —(CH2)kCH3, F, or Cl, and “k” represents an integer in a range of 1 to 3, or 0.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: October 21, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Sung-Chan Jo, Weon-Eik Oii
  • Patent number: 8859715
    Abstract: A polyimide polymer solution, a polyimide polymer, a transparent film, a display device and a solar cell are provided. The polyimide polymer has at least one of a repeating unit of formula (D) and a repeating unit of formula (J) and at least one of a repeating unit of formula (Q) and a repeating unit of formula (T). One of B and B? is cyclo-aliphatic compound, and the other is aromatic compound, a molar mass ratio of the cyclo-aliphatic compound to the aromatic compound is 1˜4, A and A? are identical or different aromatic diamines, and at least one of A and A? is aromatic diamine with ether groups, and A could be the same as or different from A?.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: October 14, 2014
    Assignee: Industrial Technology Research Institute
    Inventors: Chyi-Ming Leu, Chih-Cheng Lin, Chi-Fu Tseng, Hsueh-Yi Liao
  • Patent number: 8859186
    Abstract: A polyimide precursor and a polyimide precursor resin composition, the polyimide precursor having repeating units represented by formula (1) and a photosensitive resin composition comprising the polyimide precursor and a photoacid generator or photobase generator: where R1 is a tetravalent organic group; R2 is a divalent organic group; R1s may be the same or different from each other and R2s may be the same or different from each other in the repeating units; R3 and R4 respectively represent a monovalent organic group having a structure represented by formula (2) and may be the same or different from each other; and R3s and R4s in the repeating units may be the same or different from each other, respectively. R5, R6, R7 and R8 are as described in the specification.
    Type: Grant
    Filed: July 25, 2011
    Date of Patent: October 14, 2014
    Assignee: Dai Nippon Printing Co., Ltd.
    Inventor: Katsuya Sakayori
  • Patent number: 8846852
    Abstract: The present invention provides a polyimide film which is both outstandingly transparent and highly heat resistance, and which can be usefully employed as a transparent electrically conductive film, a TFT substrate, a flexible printed circuit substrate, and the like.
    Type: Grant
    Filed: December 30, 2009
    Date of Patent: September 30, 2014
    Assignee: Kolon Industries, Inc.
    Inventors: Young Han Jeong, Han Moon Cho, Hyo Jun Park
  • Publication number: 20140287218
    Abstract: A single-layered thermally adhesive polyimide film; a method for producing the thermally adhesive polyimide film; and a method for producing a polyimide metal laminate produced using the thermally adhesive polyimide film. The single-layer thermally adhesive polyimide film is produced by polymerizing a tetracarboxylic acid dianhydride component and a diamine component, wherein the tetracarboxylic acid dianhydride component includes 2,3,3?,4?-biphenyltetracarboxylic acid dianhydride and 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride and the diamine component includes an aromatic diamine compound represented by the following formula (I) as a main component wherein X is O, CO, C(CH3)2, CH2, SO2, S, or a direct bond, and in cases of two or more modes of bonding, each is the same or different; and n is an integer of 0 to 4.
    Type: Application
    Filed: August 17, 2012
    Publication date: September 25, 2014
    Applicant: UBE INDUSTRIES, LTD.
    Inventors: Takuro Kochiyama, Keigo Nagao, Takeshi Uekido, Hideo Arihara
  • Publication number: 20140275311
    Abstract: Disclosed are salt compositions of lysinol and dicarboxylic acids; and lysinol derived polymers including polyamide, polyimide, polyurea, cross-linked polyurea comprising urethane linkages, polyurea foams, cross-linked polyurea foams, and lysinol-epoxy thermoset.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: E I DU PONT DE NEMOURS AND COMPANY
    Inventors: DAVID N. MARKS, KENNETH GENE MOLOY, MARK A. SCIALDONE, MANXUE WANG
  • Publication number: 20140255710
    Abstract: Disclosed are a polyimide precursor for obtaining a polyimide film having excellent adhesiveness to metals and improved transmittance in the UV-visible range, a polyimide in which the polyimide precursor is used, a polyimide film in which the polyimide is used, and a method for manufacturing triazine compound used for manufacturing these. The polyimide precursor contains a structural unit represented by general formula (I): in which A is a tetravalent aromatic group or aliphatic group and B is a divalent aromatic group, wherein B in general formula (I) comprises a triazine moiety represented by following formula (B1): in which R1 denotes hydrogen or alkyl or aryl having 1 to 12 carbon atoms, and R2 denotes hydrogen or alkyl or aryl having 1 to 12 carbon atoms.
    Type: Application
    Filed: February 21, 2013
    Publication date: September 11, 2014
    Applicants: NATIONAL UNIVERSITY CORPORATION IWATE UNIVERSITY, UBE INDUSTRIES, LTD.
    Inventors: Yoshiyuki Oishi, Nobuharu Hisano, Shin-ichiro Kohama, Taizou Murakami
  • Patent number: 8829153
    Abstract: To provide a polyamic acid ester-containing polyimide precursor composition having a good storage stability, from which a polyimide film having a high imidization degree and excellent adhesion to an inorganic substrate can be obtained. A polyimide precursor composition comprising a polyamic acid ester, a thermal imidization accelerator and a solvent, wherein the thermal imidization accelerator is a compound which has a carboxy group and an amino group or an imino group which is deprotected by heat to show basicity, and which will not accelerate the imidization of the polyamic acid ester before the protecting group leaves, and a polyimide precursor composition containing a silane coupling agent.
    Type: Grant
    Filed: April 1, 2010
    Date of Patent: September 9, 2014
    Assignee: Nissan Chemical Industries, Ltd.
    Inventors: Naoki Sakumoto, Masato Nagao, Yuho Noguchi
  • Publication number: 20140248445
    Abstract: A liquid crystal display is provided which is capable of reducing the occurrence of defective display due to variations in the initial alignment direction of a liquid crystal alignment control film in a liquid crystal display of an IPS scheme, realizing the stable liquid crystal alignment, providing excellent mass productivity, and having high image quality with a higher contrast ratio. The liquid crystal display has a liquid crystal layer disposed between a pair of substrates, at least one of the substrates being transparent, and an alignment control film formed between the liquid crystal layer and the substrate. At least one of the alignment control films 109 comprises photoreactive polyimide and/or polyamic acid provided with an alignment control ability by irradiation of substantially linearly polarized light.
    Type: Application
    Filed: May 9, 2014
    Publication date: September 4, 2014
    Applicants: JAPAN DISPLAY INC., PANASONIC LIQUID CRYSTAL DISPLAY CO., LTD.
    Inventors: Yasushi TOMIOKA, Hidetoshi ABE, Katsumi KONDO
  • Publication number: 20140249244
    Abstract: The present invention relates to polymer, homo- or copolymer or oligomer for the photoalignment of liquid crystals, especially for the planar orientation of liquid crystals, comprising a main chain and a side chain, wherein the side chain and/or main chain comprises a polar group, compositions thereof, and its use for optical and electro optical devices, especially liquid crystal devices (LCDs).
    Type: Application
    Filed: September 28, 2012
    Publication date: September 4, 2014
    Applicant: ROLIC AG
    Inventors: Sabrina Chappellet, Jean-Francois Eckert, Mohammed Ibn-Elhaj, Frederic Lincker, Satish Palika, Hubert Seiberle, Qian Tang, Eva Veenstra
  • Patent number: 8821617
    Abstract: Disclosed herein are a polyimide-polybenzoxazole copolymer, a method for preparing thereof and a gas separation membrane comprising the same. More specifically, provided are a polyimide-polybenzoxazole copolymer simply prepared through thermal-rearrangement performed by thermally treating a polyimide-poly (hydroxyimide) copolymer as a precursor, a method for preparing the same, and a gas separation membrane comprising the same. The copolymer shows superior gas permeability and gas selectivity, thus being suitable for use in gas separation membranes in various forms such as films, fibers or hollow fibers. The gas separation membrane thus prepared can advantageously endure even harsh conditions such as long operation time acidic conditions and high humidity due to the rigid polymer backbone present in the copolymer.
    Type: Grant
    Filed: March 6, 2008
    Date of Patent: September 2, 2014
    Assignee: Industry-University Cooperation Foundation, Hanyang University
    Inventors: Young Moo Lee, Jae-Eun Lee, Chul-Ho Jung, Ho-Bum Park
  • Patent number: 8816017
    Abstract: Disclosed is a process for producing a polyamic acid solution by reacting a diamine component consisting essentially of 20 mol % to 80 mol % of p-phenylenediamine and 80 mol % to 20 mol % of diaminodiphenyl ether with a tetracarboxylic acid component consisting essentially of 10 mol % to 60 mol % of 2,3,3?,4?-biphenyltetracarboxylic dianhydride and 90 mol % to 40 mol % of 3,3?,4,4?-biphenyltetracarboxylic dianhydride in a solvent, comprising: a first step in which a diamine component is reacted with a molar excess of a tetracarboxylic acid component in a solvent containing more than ? mole of water per mole of the tetracarboxylic acid component, whereby preparing a polyamic acid solution; and a second step in which a diamine component, or a diamine component and a tetracarboxylic acid component are added to the polyamic acid solution obtained in the first step so that the molar amount of the diamine component is substantially equal to the molar amount of the tetracarboxylic acid component, and then the dia
    Type: Grant
    Filed: December 1, 2008
    Date of Patent: August 26, 2014
    Assignee: UBE Industries, Ltd.
    Inventors: Takeshige Nakayama, Seiichirou Takabayashi, Tooru Murakami
  • Patent number: 8809688
    Abstract: Disclosed are a polyamic acid solution, a polyimide resin prepared by imidization of the polyamic acid solution, a flexible metal clad laminate using the polyimide resin, and a printed circuit board including the flexible metal clad laminate, wherein the polyamic acid solution includes (a) 3,3?,4,4?-biphenyltetracarboxylic acid dianhydride (BPDA), and pyromellitic dianhydride (PMDA) as aromatic tetracarboxylic acid dianhydride; (b) at least one aromatic diamine; (c) an organic solvent; and (d) an inorganic filler.
    Type: Grant
    Filed: April 2, 2010
    Date of Patent: August 19, 2014
    Assignee: Doosan Corporation
    Inventors: Yang Seob Kim, Won Kyum Kim, Hyung Wan Kim, Dong Bo Yang
  • Publication number: 20140228513
    Abstract: The present invention relates to thermoplastic polyimides and to the synthesis thereof. The invention relates in particular to a method for manufacturing semi-aromatic thermoplastic polyimides by means of the solid-state polymerization of a solid ammonium carboxylate salt formed from an aliphatic diamine and an aromatic tetracarboxylic acid, thereby enabling powders having controlled particle sizes to be produced.
    Type: Application
    Filed: September 18, 2012
    Publication date: August 14, 2014
    Applicant: RHODIA OPERATIONS
    Inventors: Stephane Jeol, Vincent Mollet, Benjamin Paci