Nitrogen-containing Reactant Patents (Class 524/606)
  • Patent number: 11365315
    Abstract: Described herein are polyamide polymer blends including a sulfonated polyamide polymer, an aromatic polyamide polymer and a reinforcing filler. Optionally, the polyamide polymer blend includes an additive. It was surprisingly discovered that blends including a sulfonated polyamide polymer in addition to an aromatic polyamide polymer had increased mechanical performance, relative to corresponding polyamide polymer blends having a non-sulfonated polyamide polymer. Furthermore, it was also surprisingly discovered that, when the sulfonated polyamide polymer included a sodium counter-ion, the mechanical performance of the polyamide polymer blend was further enhanced, relative to corresponding polyamide polymer blends having a sulfonated polyamide polymer including a lithium counter-ion in place of a sodium counter-ion.
    Type: Grant
    Filed: October 10, 2018
    Date of Patent: June 21, 2022
    Assignee: SOLVAY SPECIALTY POLYMERS USA, LLC
    Inventors: Raleigh L. Davis, Keshav S. Gautam, Stéphane Jeol
  • Patent number: 11091598
    Abstract: Fiber-containing polymethyl methacrylate (PMMA) prepregs are described that include a first and second plurality of fibers. The second plurality of fibers is made from a different material than the first plurality of fibers. The PMMA prepregs also contain a polymerized resin that includes polymethyl methacrylate that has been formed from a reactive resin composition that includes methyl methacrylate. Methods of making fiber-containing PMMA prepregs are also described.
    Type: Grant
    Filed: May 13, 2020
    Date of Patent: August 17, 2021
    Assignee: Johns Manville
    Inventors: Mingfu Zhang, Klaus Friedrich Gleich, Asheber Yohannes, Michael John Block, Jawed Asrar, Derek Cooper Bristol, Christopher P Sandoval
  • Patent number: 11046825
    Abstract: The present invention is directed toward transparent films prepared from soluble aromatic copolyamides with glass transition temperatures greater than 300 C. The copolyamides, which contain pendant carboxylic groups are solution cast into films using N,N-dimethylacetamide (DMAc), N-methyl-2-pyrrolidinone (NMP), or other polar solvents. The films are thermally cured at temperatures near the copolymer glass transition temperature. After curing, the polymer films display transmittances >80% from 400 to 750 nm, have coefficients of thermal expansion of less than 20 ppm, and are solvent resistant. The films are useful as flexible substrates for microelectronic devices.
    Type: Grant
    Filed: October 3, 2016
    Date of Patent: June 29, 2021
    Inventors: Limin Sun, Frank W. Harris, Jiaokai Jing, Haci B. Erdem, John D. Harvey, Dong Zhang
  • Patent number: 11029598
    Abstract: The present invention provides a photosensitive polyimide composition comprising a polyimide resin having a structural unit represented by the formula (1) and a structural unit represented by the formula (2), a quinonediazide sulfonate, a thermal curing agent, and a thermal acid generator. In the formulas (1) and (2), n is an integer of 10 to 600, Ar1 is a tetravalent organic group; Ar2 is a divalent to tetravalent organic group; Ar3 is a divalent aromatic group; and R1 is an OH group or a COOH group. The present invention also provides a photoresist film made of the above-mentioned photosensitive polyimide composition.
    Type: Grant
    Filed: August 31, 2018
    Date of Patent: June 8, 2021
    Assignee: eChem Solutions Corp.
    Inventors: Tz Jin Yang, Ming Che Chung
  • Patent number: 10964476
    Abstract: A capacitor is provided. The capacitor includes a first electrode layer and a second electrode layer; and a first dielectric layer and a second dielectric layer, wherein the first dielectric layer and the second dielectric layer are disposed between the first electrode layer and the second electrode layer. The first dielectric layer includes a first dielectric powder and a first organic resin, and the second dielectric layer includes a second dielectric powder and a second organic resin. In particular, the weight ratio of the first dielectric powder to the first organic resin is greater than the weight ratio of the second dielectric powder to the second organic resin.
    Type: Grant
    Filed: December 27, 2018
    Date of Patent: March 30, 2021
    Assignee: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTE
    Inventors: Chun-An Lu, Ying-Jung Chiang, Yuan-Ling Tsai
  • Patent number: 10920015
    Abstract: Medium and high molecular weight long chain aliphatic nylons and methods of making the same. A method of making medium and high molecular weight nylons is described, which not only produces consistent products, but products with enhanced properties such as impact resistance and chemical resistance.
    Type: Grant
    Filed: June 15, 2018
    Date of Patent: February 16, 2021
    Assignee: SHAKESPEARE COMPANY LLC
    Inventor: Saumitra Bhargava
  • Patent number: 10920375
    Abstract: The present invention relates to a process for producing a paper or a board product having increased dimension stability including providing a fibre slurry including never-dried fibres, treating the fibre slurry with a strength composition, and forming a paper or a board product from the treated fibre slurry, where the strength composition includes a permanent wet strength resin component and a sizing agent. The present invention further relates to a use of a strength composition for increasing dimensional stability of a paper and a board, and to a paper or a board product having improved dimensional stability.
    Type: Grant
    Filed: September 19, 2017
    Date of Patent: February 16, 2021
    Assignee: Kemira Oyj
    Inventors: Jan-Luiken Hemmes, Jonathan (Yingshuang) Wei, Rongjun Lu
  • Patent number: 10800884
    Abstract: The production method of the present invention includes a step of supplying an organic polar solvent, a sulfur source, and a dihalo aromatic compound as reaction raw materials to at least one of a plurality of reaction vessels mutually communicated via a gas phase; a step of removing at least a portion of the water present in the reaction vessels; and a step of performing a polymerization reaction. These steps are carried out in parallel, and the reaction mixture is sequentially moved between reaction vessels. At that time, the internal temperatures of the reaction vessels are all not less than 150° C.
    Type: Grant
    Filed: February 5, 2018
    Date of Patent: October 13, 2020
    Assignee: KUREHA CORPORATION
    Inventors: Michihisa Miyahara, Kenji Suzuki, Hiroshi Sakabe, Yoshikatsu Satake
  • Patent number: 10723879
    Abstract: The invention relates to a thermoplastic composition having improved fluidity in the molten state, comprising at least: (a) a polyamide that has a melt viscosity greater than or equal to 50 Pa·s, and (b) a non-evolutive polyamide having a melt viscosity lower than the melt viscosity of said polyamide (a), above 0.8 Pa·s, and having a number-average molecular weight Mn lower than that of said polyamide (a), said composition having a melt viscosity that is stabilized at a value below the melt viscosity of said polyamide (a), said polyamide (b) having: a concentration of amine end groups (AEG) and/or of carboxyl end groups (CEG) less than or equal to 20 meq/kg, or a concentration of amine end groups (AEG) greater than or equal to 25 meq/kg; a concentration of acid end groups (CEG) greater than or equal to 25 meq/kg; and a concentration of blocked end groups (BEG) greater than or equal to 25 meq/kg.
    Type: Grant
    Filed: December 21, 2015
    Date of Patent: July 28, 2020
    Assignee: RHODIA OPERATIONS
    Inventors: Gilles Orange, Christiane Prebet, Didier Tupinier, Stéphane Jeol
  • Patent number: 10663825
    Abstract: The present application relates to a liquid crystal device. The liquid crystal device of the present application may realize a transparent white state, a transparent black state and a scattering state according to a frequency and/or level of an applied voltage. The liquid crystal device may be applied to, for example, a window of a vehicle, a smart window, a window protective film, a display, a light cutoff panel for a display, an active retarder for a 3D image display or a viewing angle controlling film.
    Type: Grant
    Filed: March 31, 2016
    Date of Patent: May 26, 2020
    Assignee: LG Chem, Ltd.
    Inventors: Eun Jung Lim, Sung Joon Min, Jung Sun You, Jung Woon Kim, Jin Hong Kim, Dong Hyun Oh
  • Patent number: 10513597
    Abstract: A plasticized nylon and a medical device including plasticized nylon. The medical device may be a dilatation balloon. Also disclosed are methods of plasticizing nylon.
    Type: Grant
    Filed: July 6, 2017
    Date of Patent: December 24, 2019
    Assignee: Medtronic Vascular, Inc.
    Inventor: Mingfei Chen
  • Patent number: 10450459
    Abstract: A molding compound consisting of the components: (A)-(E), wherein the sum of (A)-(E) makes up 100 wt. %. Component A is 40-70 wt. % of at least one partially crystalline polyamide, made up of: (a1) 60-75 wt. % of 6T units; (a2) 20-35 wt. % of 6I units; (a3) 3-15 wt. % of 612 units; (a4) 0-5 wt. % of one of the following units: 66; 68; 69; 610; 6; or a mixture of such units; wherein the sum of (a1) to (a4) makes up 100 wt. % of (A). Component (B) is 30-60 wt. % of fibrous reinforcing materials. Component (C) is 0-30 wt. % of particulate fillers different from (B), (D) and (E). Component (D) is 0-2.0 wt. % of heat stabilizers, and component (E) is 0-6 wt. % of auxiliary agents and/or additives, different from (A)-(D).
    Type: Grant
    Filed: March 22, 2017
    Date of Patent: October 22, 2019
    Assignee: EMS-PATENT AG
    Inventors: Manfred Hewel, Georg Stoppelmann, Oliver Thomas, Nikolai Lamberts
  • Patent number: 10233326
    Abstract: The present invention relates to a polyamide moulding compound which consists of a blend of two specific polyamides. The first polyamide is thereby based substantially on 1,5-pentanediamine as diamine component used during polycondensation. The second polyamide is thereby polyamide 6I/6T. The polyamide moulding compounds according to the invention are distinguished by extremely low shrinkage and low differential shrinkage (difference between shrinkage of the moulded article longitudinally and transversely relative to the injection flow). In addition, the present invention relates to moulded articles which are producible from the polyamide moulding compounds according to the invention and also to purposes of use of the polyamide moulding compounds.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: March 19, 2019
    Assignee: EMS-PATENT AG
    Inventors: Felix Koch, Botho Hoffmann
  • Patent number: 10196518
    Abstract: The present invention relates to a polyamide moulding compound which consists of a blend of two specific polyamides. The first polyamide is thereby based substantially on 1,5-pentanediamine as diamine component used during polycondensation. The second polyamide is thereby polyamide 6I/6T. The polyamide moulding compounds according to the invention are distinguished by extremely low shrinkage and low differential shrinkage (difference between shrinkage of the moulded article longitudinally and transversely relative to the injection flow). In addition, the present invention relates to moulded articles which are producible from the polyamide moulding compounds according to the invention and also to purposes of use of the polyamide moulding compounds.
    Type: Grant
    Filed: November 9, 2015
    Date of Patent: February 5, 2019
    Assignee: EMS-PATENT AG
    Inventors: Felix Koch, Botho Hoffmann
  • Patent number: 10050247
    Abstract: Disclosed herein is a coating composition having excellent thermal resistance and drying processability, utilizing polyamic acid having high thermal resistance and excellent solubility in a low boiling point solvent. Specifically, the coating composition includes polyamic acid and a low boiling point solvent having a boiling point less than 150° C. Also, disclosed herein a separator having improved thermal resistance by coating the coating composition on one or both surfaces of a polyolefin-based substrate film, and an electrochemical battery having improved thermal stability by using the separator.
    Type: Grant
    Filed: July 31, 2013
    Date of Patent: August 14, 2018
    Assignee: Samsung SDI Co., Ltd.
    Inventors: In Sik Jeon, Jin Kyu Park, Jun Ho Chung, Ki Chul Hong, Geon Ja Lim
  • Patent number: 10006586
    Abstract: The present invention relates to a gas storage tank, for storing gas, especially CNG, methane and/or hydrogen, said tank comprising a liner comprising a high-viscosity polyamide composition comprising a branched polyamide and an impact modifier, and to a process for manufacturing said the tank. More particularly, the composition comprises a copolyamide of the random tree type resulting from the reaction between a multifunctional monomer comprising at least three reactive functions to form an amide function, these functions being of two different types, difunctional monomers conventionally used in the manufacture of linear polyamides, and optionally difunctional monomers.
    Type: Grant
    Filed: October 8, 2013
    Date of Patent: June 26, 2018
    Assignee: Rhodia Operations
    Inventors: Wojciech Bzducha, Franco Speroni
  • Patent number: 9949379
    Abstract: A flexible printed circuit board includes a substrate, a circuit pattern formed on the substrate, and a protective coating layer formed on the substrate by applying and curing a coating solution to cover and protect the circuit pattern. A method for manufacturing forming a circuit pattern on a substrate and forming a protective coating layer for covering and protecting the circuit pattern by applying a coating solution on the substrate. The circuit pattern may be securely attached to the substrate, and damage and deformation of the circuit pattern due to repeated bending or warping of the substrate may be prevented, ultimately improving operational reliability.
    Type: Grant
    Filed: April 30, 2014
    Date of Patent: April 17, 2018
    Assignee: Amogreentech Co., Ltd.
    Inventors: Jongsoo Kim, Jeong-Sang Yu, O-Chung Kwon, Jae-Sic Kim
  • Patent number: 9919461
    Abstract: The use of thermoplastic polymers for the preparation of injection-molded articles and the resulting articles are described. Also described, is the use of a lubricated polyamide, obtained by means of the addition of at least one lubricant during the polyamide polymerization method, for the preparation of injection-molded articles.
    Type: Grant
    Filed: March 22, 2011
    Date of Patent: March 20, 2018
    Assignee: RHODIA POLIAMIDA E ESPECIALIDADES LTDA
    Inventors: Gisela Perez Gesteira, Olivier Chaubet, Thomas Canova, Guainumbi Medeiros, Suzana Kupidlowski
  • Patent number: 9634261
    Abstract: Disclosed is an organic photoelectric conversion element which has a reverse layer structure wherein at least a first electrode, a photoelectric conversion layer and a second electrode are arranged on a substrate in this order. The organic photoelectric conversion element is characterized in that: the photoelectric conversion layer is a bulk heterojunction layer that is composed of a p-type organic semiconductor material and an n-type organic semiconductor material; and a compound that has a linear or branched fluorinated alkyl group having 6-20 carbon atoms is contained as the p-type organic semiconductor material.
    Type: Grant
    Filed: June 23, 2011
    Date of Patent: April 25, 2017
    Assignee: KONICA MINOLTA INC.
    Inventors: Yasushi Okubo, Kunio Tani
  • Patent number: 9546272
    Abstract: A polyamide molding composition for the production of a stain-resistant article, the staining tendency (ST) of the article being at least 2. The composition contains 30-100% by weight of a polyamide or a polyamide mixture, consisting of 50-100% by weight of at least one amorphous and/or microcrystalline polyamide having a glass transition temperature of at least 100° C., based on: 20-100 mol % of at least one cycloaliphatic diamine; and 0-80 mol % of at least one other aliphatic and/or aromatic diamine; and also aromatic and/or aliphatic dicarboxylic acids comprising at least 6 carbon atoms, and 0-50% by weight of at least one semi-aromatic polyamide. In addition, the molding composition comprises any of inorganic white pigments, fillers, impact toughness modifier and/or flame retardants.
    Type: Grant
    Filed: December 20, 2013
    Date of Patent: January 17, 2017
    Assignee: EMS-PATENT AG
    Inventors: Etienne Aepli, Mark Pfleghar, Botho Hoffmann, Heinz Hoff
  • Patent number: 9512300
    Abstract: A thermoplastic resin composition for automobiles including about 40 to about 80 weight % semi-aromatic polyamide resin; about 0.1 to about 1 weight % copper halide thermal stabilizer; about 0.1 to about 5 weight % zeolite; and about 15 to about 55 weight % glass fiber.
    Type: Grant
    Filed: May 29, 2015
    Date of Patent: December 6, 2016
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Chang Min Hong, Jaeyoup Chung, Hyoungtaek Kang
  • Patent number: 9447302
    Abstract: The present invention provides a colorless inkjet ink composition comprising at least 30% by weight of monofunctional acrylate monomer based on the total weight of the ink and at least 3% by weight of a photoinitiator based on the total weight of the ink, wherein the photoinitiator comprises an ?-hydroxy ketone photoinitiator and wherein the ink comprises 0 to 6% by weight of acyl phosphine photoinitiator based on the total weight of the ink.
    Type: Grant
    Filed: September 3, 2010
    Date of Patent: September 20, 2016
    Assignee: Sericol Limited
    Inventors: Yuuichi Hayata, Brian Woolrich, Vincent Wright
  • Patent number: 9328199
    Abstract: The invention encompasses the process for the preparation of a cross-linked aramid polymer comprising the step of heating a non-crosslinked polymer comprising the repeating unit of formula (I) at a temperature comprised of from 150 to 400° C. for a period of time comprised of from 1 second to 20 minutes, wherein A and B are independently selected from meta-phenylene and para-phenylene, and R1 and R2 are independently selected from H and N3, with the proviso that at least one of R1 and R2 is N3 and R1 and R2 are attached to any of the positions 1, 2, 3, or 4 in para-phenylene and 1, 2, 3 in meta-phenylene; and the obtained cross-linked aramid polymer.
    Type: Grant
    Filed: June 20, 2013
    Date of Patent: May 3, 2016
    Assignee: Universidad De Burgos
    Inventors: José Miguel García Pérez, Félix Clemente García García, Felipe Serna Arenas, José Luis De La Peña Albillos, Miriam Trigo López, Pedro Antonio Tévez Bolívar, Saúl Vallejos Calzada, Ramón Ferrer Rullán
  • Patent number: 9296876
    Abstract: The invention relates to a polyamide that is stabilized toward heat, light and/or bad weather by using a compound comprising at least one amine function and at least two aliphatic hydroxyl functions. The stabilizing compound may also be added to the polyamide to form stabilized polyamide compositions.
    Type: Grant
    Filed: April 12, 2012
    Date of Patent: March 29, 2016
    Assignee: RHODIA OPERATIONS
    Inventors: Stéphane Jeol, Thierry Badel
  • Patent number: 9284410
    Abstract: A method of producing a polyamide includes (i) polycondensating a polyamide precursor containing a salt made from a dicarboxylic acid and a diamine under pressure in a pre-polymerization tank to obtain a prepolymer, and (ii) highly polymerizing the prepolymer with an extruder, wherein when the prepolymer in a molten state which is obtained in the step (i) is fed, by a pump, to the low-pressure extruder from the pre-polymerization tank through a discharge side pipe disposed downstream of the pump, the prepolymer is fed such that the length L [cm] of the discharge side pipe and the linear velocity of discharge v [cm/s] of the prepolymer by the pump satisfy the relationship expressed by the equation, 0.1 [s]?L/v<10 [s].
    Type: Grant
    Filed: June 19, 2012
    Date of Patent: March 15, 2016
    Assignee: Toray Industries, Inc.
    Inventors: Taku Ishimaru, Katsumi Akaike, Daisuke Kikuno, Tomoyuki Aoki, Minoru Noda, Yasunori Tsuda
  • Patent number: 9228057
    Abstract: A polyamide comprising a unit containing at least one (a) alicyclic dicarboxylic acid and a unit containing a (b) diamine having 8 or more carbon atoms, wherein the polyamide satisfies the following conditions (1) and (2): (1) a sulfuric acid relative viscosity ?r at 25° C. is 2.3 or more; and (2) Mw (weight average molecular weight)/Mn (number average molecular weight) is 4.0 or less.
    Type: Grant
    Filed: July 9, 2013
    Date of Patent: January 5, 2016
    Assignee: ASAHI KASEI CHEMICALS CORPORATION
    Inventors: Shinji Ieda, Koichi Nagase, Yu Nitto
  • Patent number: 9096714
    Abstract: Provided is a thin-wall article formed from a polyamide resin which can be stably produced with little variation in mechanical properties such as flexural strength, flexural modulus and impact resistance. A thin-wall article formed by molding a polyamide resin (C) obtained by polycondensing a diamine (A) and a dicarboxylic acid (B) or a polyamide resin composition containing the polyamide resin, wherein 70 mol % or more of a diamine structural unit is derived from xylylenediamine and the polyamide resin has a melt viscosity (i) of 50 to 200 Pa·s as measured at a temperature of the melting point plus 10° C. for a holding time of 6 minutes at a shear rate of 122 sec?1.
    Type: Grant
    Filed: August 7, 2012
    Date of Patent: August 4, 2015
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Jun Mitadera, Takahiro Takano
  • Patent number: 9045636
    Abstract: Thermoplastic compositions comprising polyamide, polyimide, an organo phosphorus compound and an optional reinforcing filler are described. The subject compositions are useful in blow molding methods. A method of blow molding is also described as well as articles made by the method.
    Type: Grant
    Filed: September 10, 2007
    Date of Patent: June 2, 2015
    Assignee: SABIC GLOBAL TECHNOLOGIES B.V.
    Inventors: Robert R. Gallucci, Sanjay Braj Mishra, Norimitsu Yamaguchi
  • Publication number: 20150148476
    Abstract: The present invention relates to a composition containing a particulate solid, a polar or non-polar organic medium, and a polymer chain having at least one fused aromatic imide pendant group. The invention further provides compositions for coatings, inks, toners, plastic materials (such as thermoplastics), plasticisers, plastisols, crude grinding and flush.
    Type: Application
    Filed: April 25, 2013
    Publication date: May 28, 2015
    Inventors: Dean Thetford, Andrew J. Shooter, Stuart N. Richards
  • Publication number: 20150145165
    Abstract: Methods of making fiber-containing prepregs are described. The methods may include the steps of providing a plurality of fibers, and applying a reactive resin composition to the plurality of fibers to make a mixture of the plurality of fibers and the resin composition. The reactive resin composition may include at least one of monomers and oligomers capable of polymerizing into a polymerized resin matrix. The mixture may be heated to a polymerization temperature where the monomers, oligomers, or both polymerize to form a fiber-resin amalgam that includes the polymerized resin matrix. The fiber-resin amalgam may be formed into the fiber-containing prepreg. Also described are methods of forming a fiber-reinforced composite that includes the prepreg.
    Type: Application
    Filed: November 22, 2013
    Publication date: May 28, 2015
    Applicant: JOHNS MANVILLE
    Inventors: Mingfu Zhang, Klaus Friedrich Gleich, Asheber Yohannes, Michael J. Block, Jawed Asrar
  • Patent number: 9040648
    Abstract: The present invention relates to a polymer composition that includes a polymer having at least one polymer segment represented by the following Formula (I), With reference to Formula (I): M independently for each w is a residue of a monomer; ? is a residue of a mechanochromic compound having at least two reactive groups that are each independently bonded to one monomer residue M; w, independently for each z, is an integer of at least 1; and z is an integer of at least 2.
    Type: Grant
    Filed: March 15, 2013
    Date of Patent: May 26, 2015
    Assignee: PPG Industries Ohio, Inc.
    Inventors: Charles R. Hickenboth, Cynthia Kutchko, Matthew J. Kryger
  • Patent number: 9040624
    Abstract: A colorant composition for tinting or coloring surface coverings or paint is. provided that has a low volatile organic compound (VOC) concentration, alkylphenoi ethoxylate surfactants (APE) free and hazardous air pollutants (HAPS) free. Additionally, the colorant composition has performance properties substantially equal to or better than tinters possessing high VOC concentrations. The colorant composition includes a colorant component, a dispersant including a polyamide, a surface active agent, water, and optional additives, The polyamide is a high molecular weight polyamide.having at least two anchoring amines, and the surface active agent includes phosphoric acid, phosphate esters, or salts thereof.
    Type: Grant
    Filed: October 1, 2009
    Date of Patent: May 26, 2015
    Assignee: BASF SE
    Inventors: Nilanjan Chakrabarti, Lee E. Young, Nancy Almasarweh, Shakera Thamanna, Christopher Flanders, William M. Wunch, Amrit P. Bindra
  • Patent number: 9034229
    Abstract: Disclosed herein is a method for preparing a near infrared shielding fiber. The method includes the steps of preparing and compounding a composition, then pelletizing the compounded composition to obtain the near-infrared shielding masterbatch, and melt spinning the near-infrared shielding masterbatch into the near-infrared shielding fiber. The composition includes at least one metallic ionic compound powder in an amount of about 1-25 wt %, a cross-linking agent in an amount of about 0.1-2 wt %, a thermoplastic polymer in an amount of about 67-98.7 wt %, a cross-linking initiator in an amount of about 0.1-1 wt %, and a dispersing agent in an amount of about 0.1-2 wt %.
    Type: Grant
    Filed: March 13, 2013
    Date of Patent: May 19, 2015
    Assignee: TAIWAN TEXTILE RESEARCH INSTITUTE
    Inventors: Ying-Hsiu Hsiao, Sheng-Jen Lin, Wei-Ming Chen, Wei-Peng Lin
  • Patent number: 9023975
    Abstract: [Problem to be Solved] To provide a polyamide having a high melting point, which has excellent strength, toughness, and stability under heating. [Solution] This polyamide is obtained by polymerizing an (a) dicarboxylic acid comprising at least 50 mol % of an alicyclic dicarboxylic acid and a (b) diamine comprising at least 50 mol % of a diamine having a pentamethylenediamine skeleton, wherein the polyamide has a cyclic amino end amount of 30 to 60? equivalents/g.
    Type: Grant
    Filed: September 7, 2010
    Date of Patent: May 5, 2015
    Assignee: Asahi Kasei Chemicals Corporation
    Inventors: Yu Nitto, Yasukazu Shikano, Shinji Ieda, Kazunori Terada, Masaaki Aramaki
  • Patent number: 9006318
    Abstract: The present invention relates to a polyamide composition comprising (amounts are based on the total composition) (A) polyamide, (B) melamine cyanurate and (C) talcum as mineral filler wherein the amount of talcum is higher than 25 wt %, and the weight ratio melamine cyanurate/talcum is higher than ? and to articles made wholly or partly of this polyamide composition. The polyamide is preferably polyamide 6. The composition is commonly used in the industry of for instance electrical and electronic parts and preferably in miniature circuit breakers.
    Type: Grant
    Filed: July 8, 2009
    Date of Patent: April 14, 2015
    Assignee: DSM IP Assets B.V.
    Inventors: Johannes Hoekstra, Jeroen Joost Crevecoeur, Jin Ye
  • Publication number: 20150099080
    Abstract: The invention relates to a copolyamide comprising at least two different units corresponding to the following general formulation: A/X.T A is chosen from a unit obtained from an amino acid, a unit obtained from a lactam and a unit corresponding to the formula (Ca diamine)·(Cb diacid), with a representing the number of carbon atoms of the diamine and b representing the number of carbon atoms of the diacid, a and b each being between 4 and 36, advantageously between 9 and 18, X.
    Type: Application
    Filed: December 10, 2014
    Publication date: April 9, 2015
    Applicant: ARKEMA FRANCE
    Inventors: Thierry BRIFFAUD, Philippe BLONDEL
  • Patent number: 8993655
    Abstract: Capable of being provided are [1] a master batch comprising polyamide (X) comprising a diamine unit containing 70 mole % or more of a metaxylylenediamine unit and a dicarboxylic acid unit and an alkali compound (A), wherein an average particle diameter of the alkali compound (A) contained in the master batch is 50 ?m or less; a contained number of particles having a particle diameter of exceeding 80 ?m in 5 square millimeter of a cross section of the master batch is 1.5 particle or less; and a sum (m) of values obtained by multiplying a mole concentration of an alkali metal atom and a mole concentration of an alkaline earth metal atom each contained per g of the master batch by valencies thereof respectively is 60 ?mol/g or more and 1710 ?mol/g or less and [2] a production process for a polyamide resin composition prepared by making use of the master batch described in the above item [1].
    Type: Grant
    Filed: February 22, 2012
    Date of Patent: March 31, 2015
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventor: Takashi Yamamoto
  • Publication number: 20150087777
    Abstract: A multi-stage process and system for formation of a polyarylene sulfide is described. A first polymerization stage of the formation process can include reaction of a sulfide monomer with a dihaloaromatic monomer to form a prepolymer. A second polymerization stage can include further polymerization of the prepolymer with a sulfur-containing monomer and a dihaloaromatic monomer to form a low halogen content polyarylene sulfide. The amount of sulfur utilized in the second polymerization stage is a low fraction of the total amount of sulfur utilized in the multi-stage process.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 26, 2015
    Inventor: Hendrich Alvarez Chiong
  • Publication number: 20150087776
    Abstract: A multi-stage process and system for formation of a polyarylene sulfide is described. The multi-stage process can include at least three separate formation stages that can take place in three different reactors. The first stage of the formation process can include reaction of an alkali metal sulfide with an organic amide solvent to form a complex including a hydrolysis product of the solvent and an alkali metal hydrogen sulfide. The second stage of the formation process can include reaction of the complex formed in the first stage with a dihaloaromatic monomer to form a prepolymer, and the third stage can include further polymerization of the prepolymer with additional monomers to form the final product.
    Type: Application
    Filed: September 9, 2014
    Publication date: March 26, 2015
    Inventors: Hendrich Chiong, Michael Haubs, Damian Feord, Stanley Leonard, Jacob Grayson, Venkata Nekkanti
  • Publication number: 20150086799
    Abstract: An organic polymer solution may include about 0.1%-30% by weight of a specific polymer having rigid rod-like molecules. These molecules may include various cores, spacers, and sides groups to ensure their solubility, viscosity, and cross-linking ability. The rigid rod-like molecules are selected in such a way that they form self-assembling structures in the polymer solution, which makes it a lyotropic liquid crystal. The organic polymer solution, when properly deposited on a substrate and dried to remove solvents, forms a solid optical retardation layer of positive A-type substantially transparent to electromagnetic radiation in the visible spectral range.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 26, 2015
    Applicant: LIGHT POLYMERS HOLDING
    Inventors: Irina Kasyanova, Evgeni Poliakov, Valery Kuzmin, Mary Parent
  • Patent number: 8987376
    Abstract: Disclosed is a polyimide composition for semiconductor devices, which has a rheological characteristics suited for screen printing and dispense coating, which has an improved wetting property with various coating bases, by which continuous printing of 500 times or more can be attained, with which blisters, cissing and pinholes are not generated after printing and drying or during drying or curing, which can coat a desired area. A method of forming a film in a semiconductor and semiconductors having the film formed by this method as an insulation film, protective film or the like are also disclosed. The composition for semiconductor devices contains a mixed solvent of a first organic solvent (A) and a second organic solvent (B); and a polyimide resin having at least one group selected from the group consisting of alkyl groups and perfluoroalkyl groups in recurring units, and having thixotropic property, the polyimide resin being dissolved in the mixed solvent.
    Type: Grant
    Filed: February 25, 2011
    Date of Patent: March 24, 2015
    Assignees: PI R&D Co., Ltd., Mitsubishi Electric Corporation
    Inventors: Toshiyuki Goshima, Sigemasa Segawa, Maw Soe Win, Junichi Yamashita, Ken Takanashi
  • Publication number: 20150078823
    Abstract: Reinforcing fibers, such as aromatic polyamide (“aramid”) fibers, are treated by coating with or embedding in a binder such as a Fischer-Tropsch wax. The treated fibers are divided into suitably-sized units, which are added to bitumen, aggregate and other ingredients in an asphalt cement concrete mix. The units shed fibers into the mix during the manufacturing process so that the fibers are distributed fairly evenly throughout the asphalt mixture. The binder may also impart beneficial qualities to the finished asphalt concrete.
    Type: Application
    Filed: September 18, 2013
    Publication date: March 19, 2015
    Inventors: Tracy H. LANG, Joseph A. STURTEVANT
  • Patent number: 8980982
    Abstract: A plastic packaging component is provided that is formed of a resin containing an electromagnetic spectrally detectable additive mixed with the resin. The resin formed into a plastic packaging component of an aerosol package lid, an aerosol spray button, an aerosol spray tube, a trigger sprayer, an integrated lid-sprayer, a grease cartridge, a grease cap, plastic fiber toweling, a packaging strap, a pail lid, a jar cap, or a brush. A process for detecting a displaced packaging component in an organic production stream is provided that includes adding to a resin an electromagnetically detectable additive intermixed with the resin and forming the additive loaded resin into the plastic packaging component. The production stream is then scanned for the detectable signal of the additive. Upon detecting the additive, an alarm signal is provided that the production stream contains the displaced packaging component.
    Type: Grant
    Filed: February 14, 2012
    Date of Patent: March 17, 2015
    Assignee: Illinois Tool Works, Inc.
    Inventors: Robert H. Martin, William A. Price, II, John Gregory Bruce, Darylnn Phillips Jordan, Craig Martin Stearns
  • Publication number: 20150072158
    Abstract: A black polyimide film includes a polyimide polymer formed by reaction of diamine monomers with dianhydride monomers, and a carbon black having an oxygen-to-carbon weight ratio higher than 11%. The black polyimide film can prevent flaking of carbon black when it is subject to an etching process, and exhibit desirable characteristics of extension rate and insulation.
    Type: Application
    Filed: June 30, 2014
    Publication date: March 12, 2015
    Inventors: Chih-Wei LIN, Chi-Huan LO
  • Publication number: 20150073082
    Abstract: Provided is a resin composite material having a high modulus of elasticity. The resin composite material comprises a thermoplastic resin, exfoliated graphite, and an inorganic filler different from the exfoliated graphite.
    Type: Application
    Filed: March 11, 2013
    Publication date: March 12, 2015
    Inventors: Daisuke Mukohata, Katsunori Takahashi, Nobuhiko Inui
  • Patent number: 8975325
    Abstract: Non-fibrous-reinforced thermoplastic molding compositions comprising a metal powder as a heat stabilizer are provided. The metal powder has a weight average particle size (dm) of at most 1 mm and the metal in the metal powder is selected from the group consisting of elementary metals from Group VB, VIB, VIIB and VIIIB of the Periodic Table, and mixtures thereof. A thermoplastic polyamide is also provided with an Mw of at most 50,000 g/mol, or a blend of at least two thermoplastic polymers with Tmelt or Tg differing by at least 20° C., or a second thermostabilizer. The invention also relates to the use of these compositions in high temperature applications.
    Type: Grant
    Filed: June 2, 2014
    Date of Patent: March 10, 2015
    Assignee: DSM IP Assets B.V.
    Inventors: Pieter Gijsman, Wilhelmus J. M. Sour, Rudy Rulkens, Robert H. C. Janssen
  • Publication number: 20150065648
    Abstract: A monofilament made from a polyamide composition including at least 70 wt. % of a polyamide resulting from the condensation of: an aliphatic diamine having 4 to 18 carbon atoms, together with a (cyclo)aliphatic diacid having 10 to 18 carbon atoms, and with an aliphatic monocarboxylic acid having 2 to 12 carbon atoms as a chain stopping agent. Also, a process for making this monofilament.
    Type: Application
    Filed: September 4, 2014
    Publication date: March 5, 2015
    Applicant: ARKEMA FRANCE
    Inventors: Quentin PINEAU, Bruno D'HERBECOURT, Zhenzhong LI
  • Publication number: 20150059606
    Abstract: An object of the present invention is to provide a relief printing plate precursor for laser engraving that is excellent in rinsing properties for engraving residue and engraving sensitivity and can give a sharp engraved shape. Disclosed is a relief printing plate precursor for laser engraving comprising a relief-forming layer formed of a resin composition for laser engraving, or a crosslinked relief-forming layer obtained by crosslinking the relief-forming layer formed of the resin composition for laser engraving, wherein the resin composition for laser engraving comprises a binder polymer as Component A, and carbon black of which pH is higher than 6 and an average particle size when being dispersed into water is equal to or less than 500 nm as Component B.
    Type: Application
    Filed: August 28, 2014
    Publication date: March 5, 2015
    Applicant: FUJIFILM CORPORATION
    Inventor: Yuichi YASUHARA
  • Publication number: 20150057410
    Abstract: The present invention relates to thermoplastic moulding compositions comprising iron oxalate as stabilizer system with respect to adverse thermooxidative effects. The invention further relates to the use of iron oxalate to improve the stability of thermoplastic moulding compositions with respect to adverse thermooxidative and/or photooxidative effects, and also to processes for the production of the said moulding compositions.
    Type: Application
    Filed: March 18, 2013
    Publication date: February 26, 2015
    Inventors: Tobias Benighaus, Detlev Joachimi, Guenter Margraf, Christian Ruthard, Holger Schmidt
  • Patent number: 8962735
    Abstract: Prepreg compositions and methods of making them from particles and a binder composition are disclosed. The methods may include placing the particles on a moving conveying belt and applying the binder composition to the particles on the moving conveying belt to form a moving mass. Alternate methods may include first placing the binder composition on the moving conveying belt and then applying the particles to the binding composition to form the moving mass. The methods may further include passing the moving mass through one or more pairs of opposed, compacting rolls, where the particles and the binder composition are pressed into further contact while passing through the compacting rolls to form the prepreg. The binder composition in the prepreg may include monomers and/or oligomers of a polymer that are capable of polymerizing into the polymer under polymerization conditions.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: February 24, 2015
    Assignee: Johns Manville
    Inventors: Rajappa Tadepalli, Klaus Friedrich Gleich, Jawed Asrar, Kiarash Alavi Shooshtari