Imide-containing Reactant Patents (Class 528/170)
  • Patent number: 10227452
    Abstract: This disclosure relates to polyetherimide compositions whose residual phenolic monomers exhibit little or no estradiol binding activity. Also disclosed are methods for making the disclosed polyetherimides and articles of manufacture comprising the disclosed polyetherimides.
    Type: Grant
    Filed: May 22, 2017
    Date of Patent: March 12, 2019
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Robert R. Gallucci, James A. Mahood, Roy R. Odle, Stephen S. Dimond
  • Patent number: 10115952
    Abstract: The present disclosure provides a porous separator substrate with an inverse opal structure obtained by using an engineering plastic resin with high heat-resistance, and a manufacturing method thereof. In the method, a non-crosslinked polymer resin is used to form an opal structure and a crosslinked polymer resin is penetrated into the opal structure and an organic solvent is used to remove the polymer particles being used to form the opal structure, thereby manufacturing a porous substrate with an inverse opal structure. According to the present disclosure, a separator having good porosity and air permeability can be provided without the problems of heat-resistance decrease, pore closing and thickness decrease.
    Type: Grant
    Filed: October 31, 2014
    Date of Patent: October 30, 2018
    Assignee: LG CHEM, LTD.
    Inventors: Hyung-Kyun Yu, Seok-Koo Kim, Bo-Kyung Ryu, Jong-Hun Kim
  • Patent number: 10113024
    Abstract: Arylcyclobutene polymers having improved physical properties, such as tensile strength, are provided. Compositions and methods for coating such arylcyclobutene polymers are also provided.
    Type: Grant
    Filed: November 9, 2016
    Date of Patent: October 30, 2018
    Assignees: Dow Global Technologies LLC, Rohm and Haas Electronic Materials LLC
    Inventors: Duane R. Romer, Matthew M. Yonkey, Michael K. Gallagher, Michelle Riener
  • Patent number: 10003096
    Abstract: The present invention relates to a polymer electrolyte membrane, and a membrane-electrode assembly and a fuel cell containing the same, and the polymer electrolyte membrane comprises a polymer comprising repeating units represented by the following chemical formulas 1-3. Chemical formulas 1-3 are as defined in the specification. The polymer electrolyte membrane has excellent resistance to radical attack and has improved acid-base interaction, thereby maximizing the function of an ion conductive group, and thus can improve the operation performance of a fuel cell in a low humidification state.
    Type: Grant
    Filed: March 25, 2015
    Date of Patent: June 19, 2018
    Assignee: KOLON INDUSTRIES, INC.
    Inventors: Na Young Kim, Moo Seok Lee, Dong Hoon Lee, Yong Cheol Shin
  • Patent number: 9943809
    Abstract: The present invention relates to improved methods for synthesis of thin film composite membranes by interfacial polymerization. More in particular, the method of the present invention comprises the impregnation of an ultrafiltration porous support membrane with an aqueous solution containing a polyfunctional nucleophilic monomer, and contacting the impregnated support membrane with a second largely water-immiscible solvent containing a polyfunctional epoxide monomer.
    Type: Grant
    Filed: February 27, 2015
    Date of Patent: April 17, 2018
    Assignee: Katholieke Universiteit Leuven
    Inventors: Elke Dom, Sanne Hermans, Guy Koeckelberghs, Ivo Vankelecom
  • Patent number: 9783677
    Abstract: The polyamide resin composition of the present invention contains (A) a polyamide resin, (B) a glass fiber including a compound having a carboxylic anhydride-containing unsaturated vinyl monomer, the compound being on at least a part of a surface of the glass fiber, and (C) a copolymer including a carboxylic anhydride-containing unsaturated vinyl monomer and having a glass transition temperature Tg of higher than 0° C.
    Type: Grant
    Filed: April 16, 2014
    Date of Patent: October 10, 2017
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Tomoyo Kawamura, Teruaki Sakuma, Kazunori Terada
  • Patent number: 9663617
    Abstract: A modified bismaleimide resin is made by modify bismaleimide with aromatic diamine that contains fluoro substituents through chain-growth polymerization; and modified bismaleimide resin is excellent in physical properties including a low dielectric constant Dk (3 GHz) less than 3.0, a dissipation factors (3 GHz) less than 0.02, a low resin water absorptivity ranging from 0.21% to 0.33% and an excellent processability, and is particularly suited for producing a copper clad laminate that is required to have dielectric constant Dk (3 GHz) less than 3.
    Type: Grant
    Filed: December 3, 2015
    Date of Patent: May 30, 2017
    Assignee: NAN YA PLASTICS CORPORATION
    Inventors: Te-Chao Liao, Dein-Run Fung, Cheng-Li Chao, Hao-Sheng Chen, Yung-Sheng Wang
  • Patent number: 9590197
    Abstract: Provided are a substrate for an organic electronic device (OED), an OED, and lighting. The substrate capable of forming an OED may have excellent performances including light extraction efficiency and prevent penetration of moisture or a gas from an external environment, and thus an OED having excellent performance and durability may be provided.
    Type: Grant
    Filed: September 26, 2014
    Date of Patent: March 7, 2017
    Assignee: LG CHEM, LTD.
    Inventors: Min Choon Park, Jung Ho Jo, Sang Woo Kim, Mi Ra Im
  • Patent number: 9541797
    Abstract: The present invention provides a liquid crystal display device that can prevent a decrease in the VHR and image sticking on the display screen because of residual DC voltage, and also can produce favorable alignment conditions; and a production method thereof. The liquid crystal display device of the present invention includes: a pair of substrates; a liquid crystal layer that contains liquid crystal molecules and is disposed between the pair of substrates; and an alignment film that is disposed on a liquid crystal layer side of at least one of the pair of substrates, the alignment film containing a polyamic acid or a polyimide with an imidization ratio of less than 100%, the liquid crystal display device including a monomolecular film on the alignment film.
    Type: Grant
    Filed: February 24, 2011
    Date of Patent: January 10, 2017
    Assignee: UNIFIED INNOVATIVE TECHNOLOGY, LLC
    Inventors: Masanobu Mizusaki, Youhei Nakanishi, Takeshi Noma
  • Patent number: 9499668
    Abstract: Compositions comprising sulfur-containing polymers such as polythioethers, Michael acceptors, and controlled release amine catalysts employing Michael addition curing chemistries useful in aerospace sealant applications are disclosed. The compositions exhibit extended pot life and the rate of curing can be tailored for specific applications.
    Type: Grant
    Filed: December 10, 2014
    Date of Patent: November 22, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Juexiao Cai, Lawrence G. Anderson, Renhe Lin
  • Patent number: 9400091
    Abstract: The invention relates to a moisture resistant composition comprising: a) from 20 to 80 weight percent based on the total weight of the composition of a polyetherimide copolymer made from a monomer mixture comprising 3,3? bisphenol-A dianhydride (BPADA), and 4,4?-diaminodiphenyl sulfone (DDS); b) from 5 to 75 weight percent based on the total weight of the composition of polyetheretherketone (PEEK); and c) from 0 to 30 weight percent based on the total weight of the composition of a filler. The invention relates to a reflector substrate comprising a moisture resistant layer metalized with a reflective layer, wherein the moisture resistant layer comprising the moisture resistant composition. The invention relates to a method for producing a metalized coating without a primer comprising applying a reflective layer directly to a moisture resistant layer in the absence of a primer, wherein the moisture resistant layer comprises the moisture resistant composition.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: July 26, 2016
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Michael Stephen Donovan, Gurulingamurthy M. Haralur
  • Patent number: 9365678
    Abstract: The use of Michael addition curing chemistries in compositions comprising sulfur-containing polymers such as polythioethers and polysulfides useful in aerospace sealant applications are disclosed. Sulfur-containing adducts comprising terminal Michael acceptor groups are also disclosed.
    Type: Grant
    Filed: August 19, 2014
    Date of Patent: June 14, 2016
    Assignee: PRC-DeSoto International, Inc.
    Inventors: Lawrence G. Anderson, Juexiao Cai, Marfi Ito, Raquel Keledjian, Renhe Lin
  • Patent number: 9353221
    Abstract: The present invention relates to aqueous dispersions containing hydrophilized polycarbodiimides, methods for producing the aqueous dispersions according to the invention, their use as a constituent of binders in adhesives, lacquers, paints, paper coating compounds or in fiber nonwovens and articles made of wood, metal, textile, leather or plastic, which are treated with the aqueous dispersion according to the invention.
    Type: Grant
    Filed: March 28, 2011
    Date of Patent: May 31, 2016
    Assignee: Covestro Deutschland AG
    Inventors: Evgeny Avtomonov, Harald Kraus, Sebastian Dörr, Dirk Achten, Jörg Büchner
  • Patent number: 9303136
    Abstract: The present disclosure is directed to a method of increasing optical density by incorporating carbon black in to a colored polyimide composition to obtain a colored polyimide film. The colored polyimide film has 48 to 94 weight percent of a polyimide, 5 to 25 weight percent pigment and 0.05 to 2 weight percent carbon black.
    Type: Grant
    Filed: June 18, 2012
    Date of Patent: April 5, 2016
    Assignee: EI DU PONT DE NEMOURS AND COMPANY
    Inventors: Christopher Robert Becks, Kuppusamy Kanakarajan
  • Patent number: 9297515
    Abstract: The invention relates to a moisture resistant composition comprising: a) from 20 to 80 weight percent based on the total weight of the composition of a polyetherimide copolymer made from a monomer mixture comprising 3,3? bisphenol-A dianhydride (BPADA), and 4,4?-diaminodiphenyl sulfone (DDS); b) from 5 to 75 weight percent based on the total weight of the composition of polyetheretherketone (PEEK); and c) from 0 to 30 weight percent based on the total weight of the composition of a filler. The invention relates to a reflector substrate comprising a moisture resistant layer metalized with a reflective layer, wherein the moisture resistant layer comprising the moisture resistant composition. The invention relates to a method for producing a metalized coating without a primer comprising applying a reflective layer directly to a moisture resistant layer in the absence of a primer, wherein the moisture resistant layer comprises the moisture resistant composition.
    Type: Grant
    Filed: December 12, 2014
    Date of Patent: March 29, 2016
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Michael Stephen Donovan, Gurulingamurthy M. Haralur
  • Patent number: 9261782
    Abstract: Various cycloolefinic/maleic anhydride polymers containing maleimide pendant groups and compositions thereof useful for forming self-imageable films encompassing such copolymers are disclosed. Such polymers encompass norbornene-type repeating units containing maleimide groups and maleic anhydride-type repeating units where at least some of such maleic anhydride-type repeating units have been ring-opened. The films formed from such copolymer compositions provide self imageable, low-k, thermally stable layers for use in microelectronic and optoelectronic devices.
    Type: Grant
    Filed: September 24, 2013
    Date of Patent: February 16, 2016
    Assignee: PROMERUS, LLC
    Inventors: Pramod Kandanarachchi, Larry F. Rhodes
  • Patent number: 9229375
    Abstract: An intermediate transfer belt includes a polyimide resin or a polyamideimide resin including only ?-butyrolactone of from 5 to 5,000 ppm as a residual solvent.
    Type: Grant
    Filed: January 8, 2014
    Date of Patent: January 5, 2016
    Assignee: RICOH COMPANY, LTD.
    Inventors: Hidetaka Kubo, Jun Aoto
  • Patent number: 9194981
    Abstract: The present invention relates generally to mercaptofunctional high ?? EO chromophores and EO polymers, and particularly to mercaptofunctional high ?? EO chromophores and EO polymers useful for making electro-optical devices and systems. Mercaptofunctional high ?? EO chromophores are covalently bonded to poly(imido sulfide) polymers producing high Tg, low optical loss, covalently bonded, high ?? EO chromophore containing polymers. Methods of synthesizing these EO materials using mild polymerization conditions are also described.
    Type: Grant
    Filed: May 14, 2014
    Date of Patent: November 24, 2015
    Assignee: CORNING INCORPORATED
    Inventors: Mingqian He, Jianguo Wang
  • Patent number: 9169357
    Abstract: A polyimide copolymer represented by formula (I) or formula (II) is provided. In formula (I) or formula (II), B is a cycloaliphatic group or aromatic group, A is an aromatic group, R is hydrogen or phenyl, and m and n are 20-50. The invention also provides a method for fabricating a patterned metal oxide layer.
    Type: Grant
    Filed: December 23, 2011
    Date of Patent: October 27, 2015
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Jhy-Long Jeng, Jeng-Yu Tsai, Shur-Fen Liu, Chin-Ching Lin, Yu-Chun Chen, Wen-Ching Sun, Jinn-Shing King
  • Patent number: 9164314
    Abstract: A controllable glazing, containing at least a first and a second reflective polarizer and a liquid-crystal-dye layer. The liquid-crystal-dye-layer is arranged between the first and the second reflective polarizer. The alignment of the dichroic dye and the alignment of the liquid crystal of the liquid-crystal-dye-layer are changeable. The first and the second reflective polarizer are denoted for electromagnetic radiation in the wavelength range of ?1 to ?2 and the liquid-crystal-dye-layer is selected such that the electromagnetic radiation transmission through the controllable glazing is controlled in the wavelength range of ?3 to ?4 by dye-absorbance and in the wavelength range ?1 to ?2 by alignment of the liquid crystal and the dye in the liquid-crystal-dye layer. The wavelength range of ?1 to ?2 is within the wavelength range of 750 nm to 2000 nm and the wavelength range of ?3 to ?4 is within the wavelength range of 380 nm to 750 nm.
    Type: Grant
    Filed: July 18, 2011
    Date of Patent: October 20, 2015
    Assignee: PEER+ B.V.
    Inventor: Casper Laurens Van Oosten
  • Patent number: 9139696
    Abstract: The present invention includes compositions and methods of preparation for symmetrical and unsymmetrical diamines containing three ether-linked benzonitrile moieties that may be used as monomers for the manufacture of a variety of functional polymers. For example, the presently disclosed multi(ether-benzonitrile) diamines may polymerize with: (i) a dianhydride to form a polyimide; (ii) a diacid chloride directly or with a dicarboxylic acid (diacid) in conjunction with a suitable promoter/catalyst combination such as triethylphosphite/pyridine to form a polyamide; and (iii) 1,2,4-benzenetricarboxylic anhydride (trimellitic anhydride), trimellitic anhydride chloride, or a diacid/diacid chloride derived from trimellitic anhydride and an aromatic diamine to form a poly(amide-imide).
    Type: Grant
    Filed: March 28, 2014
    Date of Patent: September 22, 2015
    Assignee: The United States of America, as represented by the Secretary of the Air Force
    Inventors: Loon-Seng Tan, David Huabin Wang
  • Patent number: 9127128
    Abstract: A polyetherimide composition comprising a polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, at least 15 wt. % of a 3,3?-bis(halophthalimide) of the formula from more than 17 wt. % to less than 85 wt. % of a 4,3?-bis(halophthalimide) of the formula from more than 0 to less than 27 wt.
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: September 8, 2015
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Matthew L. Kuhlman, Gurulingamurthy M. Haralur
  • Publication number: 20150079377
    Abstract: A polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, from more than 45 to less than 75 weight percent of a 3,3?-bis(halophthalimide), less than 10 weight percent of a 3,4?-bis(halophthalimide), and from more than 45 to less than 75 weight percent of a (4,4?-bis(halophthalimide.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventor: Matthew L. Kuhlman
  • Publication number: 20150079376
    Abstract: A polyetherimide composition comprising a polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, at least 15 wt. % of a 3,3?-bis(halophthalimide) of the formula from more than 17 wt. % to less than 85 wt. % of a 4,3?-bis(halophthalimide) of the formula and from more than 0 to less than 27 wt.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventor: Matthew L. Kuhlman
  • Publication number: 20150080489
    Abstract: A polyetherimide composition comprising a polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, at least 15 wt. % of a 3,3?-bis(halophthalimide) of the formula from more than 17 wt. % to less than 85 wt. % of a 4,3?-bis(halophthalimide) of the formula and from more than 0 wt. % to less than 27 wt. % of a 4,4?-bis(halophthalimide) of the formula wherein R is para-phenylene.
    Type: Application
    Filed: September 13, 2013
    Publication date: March 19, 2015
    Inventors: Matthew L. Kuhlman, Gurulingamurthy Haralur
  • Patent number: 8981038
    Abstract: A polyimide including a structure shown as Formula II is provided, wherein X is halogen, A1 is selected from one of Formula 1 to Formula 18, and n is from 2 to 500,
    Type: Grant
    Filed: December 25, 2012
    Date of Patent: March 17, 2015
    Assignee: Taiwan Textile Research Institute
    Inventors: Der-Jang Liaw, Wen-Hsiang Chen, Ying-Chi Huang, Bo-Cheng Tao
  • Patent number: 8981035
    Abstract: There is provided a production method of poly(phenylene ether ether ketone). The production method makes a cyclic poly(phenylene ether ether ketone) composition subjected to thermal ring-opening polymerization in the presence of a metal alkoxide and/or a metal phenoxide. The cyclic poly(phenylene ether ether ketone) composition includes 60% by weight or more of cyclic poly(phenylene ether ether ketone) and has a melting point of 270° C. or lower.
    Type: Grant
    Filed: June 22, 2012
    Date of Patent: March 17, 2015
    Assignee: Toray Industries, Inc.
    Inventors: Keiko Ichinose, Kohei Yamashita, Makito Yokoe, Koji Yamauchi
  • Publication number: 20150073116
    Abstract: A polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound of the formula MO—Z—OM wherein M is an alkali metal salt and Z is an aromatic C6-24 monocyclic or polycyclic moiety optionally substituted with 1 to 6 C1-8 alkyl groups, 1 to 8 halogen atoms, or a combination thereof, with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, from more than 45 to less than 75 weight percent of a 3,3?-bis(halophthalimide) of the formula less than 10 weight percent of a 3,4?-bis(halophthalimide) of the formula ?and from more than 45 to less than 75 weight percent of a (4,4?-bis(halophthalimide) of the formula
    Type: Application
    Filed: November 14, 2014
    Publication date: March 12, 2015
    Applicant: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Matthew L Kuhlman, Gurulingamurthy M HARALUR
  • Patent number: 8962769
    Abstract: The present invention relates to novel polyimidothioethers-inorganic nanoparticle hybrid material, which exhibit good surface planarity, thermal dimensional stability, tunable refractive index, and high optical transparency upon forming into films. The present invention also relates to polyimidothioethers which is an intermediate for preparing the present hybrid material, and their preparation.
    Type: Grant
    Filed: June 27, 2012
    Date of Patent: February 24, 2015
    Assignee: National Taiwan University
    Inventors: Guey-Sheng Liou, Chia-Liang Tsai, Hung-Ju Yen, Wen-Chang Chen, Wen-Yen Chiu, Yang-Yen Yu
  • Publication number: 20150005468
    Abstract: The present invention generally relates to high permeability, UV cross-linkable copolyimide polymers and membranes for gas, vapor, and liquid separations, as well as methods for making and using these membranes. The invention provides a process for separating at least one gas from a mixture of gases using the high permeability copolyimide membrane or the UV cross-linked copolyimide membrane, the process comprising: (a) providing a high permeability copolyimide membrane or a UV cross-linked copolyimide membrane which is permeable to said at least one gas; (b) contacting the mixture on one side of the high permeability copolyimide membrane or the UV cross-linked copolyimide membrane to cause said at least one gas to permeate the membrane; and (c) removing from the opposite side of the membrane a permeate gas composition comprising a portion of said at least one gas which permeated said membrane.
    Type: Application
    Filed: May 14, 2014
    Publication date: January 1, 2015
    Applicant: UOP LLC
    Inventors: Zara Osman, Chunqing Liu, Angela N. Troxell, Carl W. Liskey
  • Patent number: 8907042
    Abstract: A polyetherimide manufactured by reaction of an alkali metal salt of a dihydroxy aromatic compound of the formula MO—Z—OM wherein M is an alkali metal salt and Z is an aromatic C6-24 monocyclic or polycyclic moiety optionally substituted with 1 to 6 C1-8 alkyl groups, 1 to 8 halogen atoms, or a combination thereof, with a bis(halophthalimide) composition comprising, based on the weight of the bis(halophthalimide) composition, from more than 45 to less than 75 weight percent of a 3,3?-bis(halophthalimide) of the formula less than 10 weight percent of a 3,4?-bis(halophthalimide) of the formula and from more than 45 to less than 75 weight percent of a (4,4?-bis(halophthalimide) of the formula
    Type: Grant
    Filed: October 28, 2011
    Date of Patent: December 9, 2014
    Assignee: Sabic Global Technologies B.V.
    Inventors: Matthew L. Kuhlman, Gurulingamurthy M. Haralur
  • Patent number: 8886106
    Abstract: An object is to provide an intermediate transfer belt and a method for producing the same which inhibits fine toner dots in white area in an environment of low temperature and low humidity and further, inhibits roughness of image with long-term use. An intermediate transfer belt for an electrophotographic image forming apparatus comprising a polyimide having a dispersed conductive filler, wherein the polyimide contains a unit structure represented by Formula (1); wherein X represents a group selected from Formulas (a) to (e), n, m, l each represents 0 or 1, and at least one of m and l is 1, wherein p in Formula (c) and q in Formula (e) each is an integer of 1 to 5.
    Type: Grant
    Filed: February 24, 2012
    Date of Patent: November 11, 2014
    Assignee: Konica Minolta Business Technologies, Inc.
    Inventors: Miyuki Murakami, Susumu Sudo
  • 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
  • Publication number: 20140309352
    Abstract: A curable polymer composition comprising: (A) a thermoset maleimide resin precursor component; and further comprising one or both of: (B) an arylsulphone-containing maleimide component; and (C) a polyarylpolymer thermoplastic toughening agent component, wherein in the absence of component (B), said component (C) comprises one or more maleimide pendant and/or end groups, and thermoset resins and composites derived therefrom.
    Type: Application
    Filed: December 20, 2012
    Publication date: October 16, 2014
    Applicant: CYTEC INDUSTRIES INC.
    Inventors: Steven Richard Ward, Paul Mark Cross, Robin Maskell
  • Patent number: 8853442
    Abstract: A resin crosslinking agent that is capable of enhancing the scuffing resistance and the chemical resistance upon adding a carbodiimide compound as a crosslinking agent to an aqueous resin. The resin crosslinking agent contains: a carbodiimide compound having at least one carbodiimide group, having terminals that are capped with at least one compound (hydrophilic organic compound I) selected from a dialkylamino alcohol, a hydroxycarboxylic acid alkyl ester and a (poly)alkylene glycol monoalkyl ether, and with a compound (hydrophilic organic compound II) that has higher hydrophilicity than the hydrophilic organic compound I and has at least one hydroxyl group; and a water-miscible liquid compound.
    Type: Grant
    Filed: December 24, 2010
    Date of Patent: October 7, 2014
    Assignee: Nisshinbo Holdings, Inc.
    Inventors: Kenichi Yanagisawa, Saori Kotani
  • 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: 20140275443
    Abstract: In one embodiment, a tool, comprising: a tool stationary portion comprising a nozzle and a film gate; and a tool movable portion comprising a shut off pin opposite the nozzle and the film gate; wherein the shut off pin prevents polymer melt in the nozzle from leaking into a cavity of the tool after injection of polymer into the tool.
    Type: Application
    Filed: March 15, 2013
    Publication date: September 18, 2014
    Applicant: SABIC INNOVATIVE PLASTICS IP B.V.
    Inventors: Ulrich Hofmann, Richard Schouwenaar
  • Patent number: 8796411
    Abstract: The polyimide precursor composition of the present invention is characterized in comprising a polyimide precursor having a structure formed by reacting a diamine component (A) containing a fluorine-containing aromatic diamine (a1) represented by the following chemical formula (I) (in the formula (I), R1 and R2 are each independently selected from —H, —(CF2)n—CF3, and —O(CF2)n—CF3 (n is an integer of 0 or more and 7 or less), and at least one of R1 and R2 is a fluorine-containing group) and trans-1,4-cyclohexyldiamine (a2) with an acid dianhydride component (B) containing an aliphatic tetracarboxylic dianhydride (b1) and an aromatic tetracarboxylic dianhydride (b2). Use of the composition of the present invention provides a polyimide film and a transparent flexible film having high transparency, low thermal expansion properties, low birefringent properties, and high heat resistance.
    Type: Grant
    Filed: January 26, 2009
    Date of Patent: August 5, 2014
    Assignee: Hitachi Chemical DuPont Microsystems, Ltd.
    Inventors: Yuichi Kaneya, Yumiko Arakawa, Keiko Suzuki
  • Publication number: 20140200308
    Abstract: Disclosed herein are methods and compositions of polycarbonate compositions having, among other characteristics, improved thermal dimensional stability, hydrolytic stability and high refractive index. The resulting polycarbonate copolymer composition, comprising a polycarbonate and a polysulfone, can be used in the manufacture of articles for optical applications. This abstract is intended as a scanning tool for purposes of searching in the particular art and is not intended to be limiting of the present invention.
    Type: Application
    Filed: January 11, 2013
    Publication date: July 17, 2014
    Applicant: SABIC Innovative Plastics IP B.V.
    Inventors: Roopali Rai, Theo Hoeks, Jaykisore Pal, BG Umesh, Shantaram Narayan Naik, Subramanyam Santhanam, Shweta Hegde, Hariharan Ramalingham
  • Patent number: 8771442
    Abstract: New compositions and methods of using those compositions as bonding compositions are provided. The compositions comprise a cycloolefin copolymer dispersed or dissolved in a solvent system, and can be used to bond an active wafer to a carrier wafer or substrate to assist in protecting the active wafer and its active sites during subsequent processing and handling. The compositions form bonding layers that are chemically and thermally resistant, but that can also be softened or dissolved to allow the wafers to slide or be pulled apart at the appropriate stage in the fabrication process.
    Type: Grant
    Filed: July 13, 2012
    Date of Patent: July 8, 2014
    Assignee: Brewer Science Inc.
    Inventors: Wenbin Hong, Dongshun Bai, Tony D. Flaim, Rama Puligadda
  • Publication number: 20140175337
    Abstract: A modified maleimide oligomer is disclosed. The modified maleimide oligomer is made by performing a reaction of a compound having a barbituric acid structure, a free radical capture, and a compound having a maleimide structure. A composition for a battery is also disclosed. The composition includes the modified maleimide oligomer.
    Type: Application
    Filed: June 3, 2013
    Publication date: June 26, 2014
    Inventors: Chorng-Shyan CHERN, Jing-Pin PAN, Chang-Rung YANG, Tsung-Hsiung WANG, Guan-Lin LAI, Jung-Mu HSU
  • Patent number: 8759472
    Abstract: A polyamide-imide resin insulating paint according to the present invention includes polyamide-imide resin containing no halogen element in its molecular chain which is dissolved in a polar solvent, in which the polyamide-imide resin contains an aromatic diisocyanate component (A) having three or more benzene rings or an aromatic diamine component (E) having three or more benzene rings in a monomer, and a ratio M/N between a molecular weight (M) of the polyamide-imide resin per repeat unit and an average number (N) of amide groups and imide groups is equal to or more than 200.
    Type: Grant
    Filed: April 25, 2013
    Date of Patent: June 24, 2014
    Assignee: Hitachi Metals, Ltd.
    Inventors: Hideyuki Kikuchi, Yuzo Yukimori
  • Patent number: 8754186
    Abstract: An object of the present invention is to provide a polyimide precursor composition that can be cured at low temperatures (250° C. or lower), while having a low viscosity even at a high concentration, and a method of producing the same. Another object of the present invention is to provide a polyimide coating film obtained from the polyimide precursor composition and having good physical properties, and a method of producing the same. Furthermore, another object of the present invention is to provide a photosensitive resin composition containing the polyimide precursor composition, and a method of producing the same. These objects can be achieved by the polyimide precursor composition containing an imidized tetracarboxylic acid having a specific structure and a diamine having a specific structure.
    Type: Grant
    Filed: December 19, 2007
    Date of Patent: June 17, 2014
    Assignee: Kaneka Corporation
    Inventors: Kan Fujihara, Tetsuya Kogiso, Yoshihide Sekito
  • Patent number: 8754187
    Abstract: The present invention relates generally to mercaptofunctional high ?? EO chromophores and EO polymers, and particularly to mercaptofunctional high ?? EO chromophores and EO polymers useful for making electro-optical devices and systems. Mercaptofunctional high ?? EO chromophores are covalently bonded to poly(imido sulfide) polymers producing high Tg, low optical loss, covalently bonded, high ?? EO chromophore containing polymers. Methods of synthesizing these EO materials using mild polymerization conditions are also described.
    Type: Grant
    Filed: June 11, 2013
    Date of Patent: June 17, 2014
    Assignee: Corning Incorporated
    Inventors: Mingqian He, Jianguo Wang
  • Patent number: 8748325
    Abstract: A polyimide film is effectively formed on a complicated surface. The polyimide film is formed by reacting, on the surface, diamine monomer and tetracarboxylic acid dianhydride monomer both of which are dissolved within carbon dioxide in a supercritical states, together with a polyamic acid resulting from a reaction between the diamine monomer and the tetracarboxylic acid dianhydride reached to the surface.
    Type: Grant
    Filed: March 1, 2013
    Date of Patent: June 10, 2014
    Inventors: Mitsuhiro Horikawa, Hiroyuki Ode, Masashi Haruki, Shigeki Takishima, Shinichi Kihara
  • Patent number: 8735530
    Abstract: A method for making polyamide is described. More particularly, a method for making a polyamide from at least one diacid and one diamine, that includes a step of concentrating an aqueous solution of diacid and diamine salt up to a salt weight concentration higher than 85%, and a polymerization step up to a desired polymerization degree is described.
    Type: Grant
    Filed: March 9, 2010
    Date of Patent: May 27, 2014
    Assignee: Rhodia Operations
    Inventors: Virginie Thieblemont, Jean-Francois Thierry
  • Patent number: 8729214
    Abstract: A method for the purification of aromatic polyether polymers prepared by a halide displacement polymerization process comprises adsorbing the catalyst with an alkali metal halide to form an adsorbent component and then removing the adsorbent component. Mixtures resulting from this method are also discussed.
    Type: Grant
    Filed: February 5, 2013
    Date of Patent: May 20, 2014
    Assignee: Sabic Innovative Plastics IP B.V.
    Inventors: Beatriz Penalver Bernabe, Thomas Guggenheim, David Bruce Hall, Norman Johnson, Juan Justino Rodriguez Ordonez, David Woodruff
  • Patent number: 8722842
    Abstract: The present invention provides an optical film exhibiting wavelength dispersion such that a retardation value is smaller on the shorter wavelength side, and capable of being also formed comparatively thinly. The optical film of the present invention is an optical film including a polyimide-based polymer represented by the following general formula (I). In the formula (I), m is 40% by mol or more and 100% by mol or less. R1 and R2 each independently denote a substituent having a carbon-carbon double bond or a triple bond. A, A?, B, B?, E, G, and H each denote a substituent, and small letters corresponding to these alphabets denote substitution number thereof. X and Y each independently denote bond part such as a covalent bond. The substituents having a carbon-carbon double bond or a triple bond represented by R1 and R2 are a substituted or unsubstituted aryl group, a substituted or unsubstituted vinyl group, and a substituted or unsubstituted ethynyl group.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: May 13, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Toshiyuki Iida, Yutaka Ohmori, Miyuki Kurogi
  • Patent number: 8703901
    Abstract: The present invention relates to an aqueous alkali-developable photosensitive polyimide precursor resin composition that is appropriate for highly heat-resistant transparent protection layers and insulation layers for liquid crystal display devices.
    Type: Grant
    Filed: May 30, 2012
    Date of Patent: April 22, 2014
    Assignee: LG Chem, Ltd.
    Inventors: Dong-seok Kim, Yong-sik Ahn, Kyung-jun Kim, Mi-hie Yi