Inorganic Sulfur Reactant Contains At Least One Metal Atom Or Contains An Ammonium Ion Patents (Class 528/388)
  • Patent number: 7867612
    Abstract: A composite material is described that contains a reinforcing resin and reinforcing fibers, wherein the reinforcing fibers have a coating containing polyphenylene sulfide and the proportion of polyphenylene sulfide relative to the uncoated fibers is 0.001 to <0.01 wt. %. The composite material shows higher apparent interlaminar shear strength and bending strength as compared with similar composite materials having no PPS coating in the above concentration range.
    Type: Grant
    Filed: March 28, 2003
    Date of Patent: January 11, 2011
    Assignee: Toho Tenax Europe GmbH
    Inventors: Klaus Peter Schwung, Bernd Wohlmann
  • Patent number: 7834133
    Abstract: A process for producing a poly(arylene sulfide) including a charging step 1 of preparing a charging mixture containing an organic amide solvent, a sulfur source, an alkali metal hydroxide, water and a dihalo-aromatic compound and having a pH of at least 12.5; a first-stage polymerization step 2 of heating the mixture to initiate a polymerization reaction, thereby forming a prepolymer that a conversion of the dihalo-aromatic compound is at least 50%; and a second-stage polymerization step 3 of adding a phase separation agent into the reaction system and adding an alkali metal hydroxide in an amount corresponding to 1 to 10 mol % per mol of the charged sulfur source at a time or in portions, thereby continuing the polymerization reaction.
    Type: Grant
    Filed: October 26, 2005
    Date of Patent: November 16, 2010
    Assignee: Kureha Corporation
    Inventors: Koichi Suzuki, Hiroyuki Sato, Nobuo Sato, Hirohito Kawama
  • Publication number: 20100240863
    Abstract: A method for producing an acid group-containing polyarylene sulfide of the present invention includes a reaction step of reacting a polyhaloaromatic compound (a), an alkali metal hydrosulfide (b), an alkali metal carboxylate (c), and an aromatic compound (d) having an elimination group and an acid group, which function in a nucleophilic reaction, in the presence of a solid alkali metal sulfide.
    Type: Application
    Filed: August 7, 2007
    Publication date: September 23, 2010
    Applicant: DIC Corporation
    Inventors: Toshio Hinokimori, Nobuhiko Yamauchi, Takashi Furusawa
  • Publication number: 20100228003
    Abstract: A method for producing an acid group-containing polyarylene sulfide of the present invention includes a reaction step of reacting a polyhaloaromatic compound (a), an alkali metal hydrosulfide (b), and an alkali metal carboxylate (c) in the presence of a solid alkali metal sulfide and a lithium ion.
    Type: Application
    Filed: August 7, 2007
    Publication date: September 9, 2010
    Inventors: Toshio Hinokimori, Nobuhiko Yamauchi, Takashi Furusawa
  • Publication number: 20100210813
    Abstract: The techniques provide a system and a method of producing polyphenylene sulfide (PPS) polymer. The PPS polymer is produced by reacting a sulfur source and a dihaloaromatic compound in the presence of a polar organic compound in a polymerization mixture in a polymerization vessel. The PPS polymer is washed with a base to lower the oligomer content of the PPS polymer and thus the off-gassing during processing.
    Type: Application
    Filed: February 13, 2009
    Publication date: August 19, 2010
    Applicant: Chevron Phillips Chemical Company LP
    Inventors: Jeffrey S. Foder, Aubrey South, JR.
  • Patent number: 7767783
    Abstract: A dehydration step is conducted by heating a mixture containing an organic amide solvent and a sulfur source including an alkali metal hydrosulfide, and a part of an overall charged amount of an alkali metal hydroxide as needed. The mixture remaining within the system after the dehydration step is mixed with a dihalo-aromatic compound, the resultant mixture is heated to conduct a polymerization reaction, and the alkali metal hydroxide is added to the mixture for polymerization reaction continuously or in portions to control the pH of the mixture for polymerization reaction within a range of from 7 to 12.5 from the beginning to the end of the polymerization reaction. The poly(arylene sulfide) according to the present invention has a nitrogen content of at most 800 ppm.
    Type: Grant
    Filed: February 12, 2009
    Date of Patent: August 3, 2010
    Assignee: Kureha Corporation
    Inventors: Hirohito Kawama, Mitsuhiro Matsuzaki, Michihisa Miyahara, Koichi Suzuki, Hiroyuki Sato
  • Patent number: 7754848
    Abstract: In a process for producing a poly(arylene sulfide) by polymerizing a sulfur source and a dihalo-aromatic compound in the presence of an alkali metal hydroxide in an organic amide solvent, the production process comprises washing a polymer obtained by the polymerization with a hydrophilic organic solvent containing water in a proportion of 1 to 30% by weight, thereby collecting a purified polymer, the content of nitrogen contained in an extract extracted by a mixed solvent containing 40% by weight of acetonitrile and 60% by weight of water from the purified polymer is at most 50 ppm on the basis of the weight of the polymer, and a poly(arylene sulfide), the content of nitrogen contained in an extract extracted by a mixed solvent containing 40% by weight of acetonitrile and 60% by weight of water from the purified polymer is at most 50 ppm on the basis of the weight of the polymer.
    Type: Grant
    Filed: December 20, 2004
    Date of Patent: July 13, 2010
    Assignee: Kureha Corporation
    Inventors: Hiroyuki Sato, Koichi Suzuki, Hirohito Kawama
  • Patent number: 7750111
    Abstract: A polyarylene sulfide has a narrow molecular weight distribution and a high molecular weight and high purity which is industrially useful, wherein the polyarylene sulfide has a weight average molecular weight of 10,000 or more, and weight loss when heated, ?Wr=(W1?W2)/W1 × 100?0.18(%) (wherein ?Wr is weight loss ratio (%), W1 is sample weight when arrived at 100° C. and W2 is sample weight when arrived at 330° C.). Its production method includes a polyarylene sulfide prepolymer which contains a cyclic polyarylene sulfide at least 50 wt % or more, and of which weight average molecular weight is less than 10,000 is heated to be converted to a high polymer of which weight average molecular weight is 10,000 or more.
    Type: Grant
    Filed: September 20, 2006
    Date of Patent: July 6, 2010
    Assignee: Toray Industries, Inc.
    Inventors: Shunsuke Horiuchi, Koji Yamauchi
  • Publication number: 20100113739
    Abstract: A poly(arylene sulfide) having properties that a melt viscosity is 1 to 3,000 Pa·s as measured under conditions of a temperature of 310° C. and a shear rate of 1,216 sec?1, a pH is 7.0 to 12.0 as measured in a mixed solvent of water/acetone (volume ratio=2/1), a crystallization temperature is at most 220° C. as measured in the course of lowing the temperature of the polymer at a rate of 10° C./min from a molten state, and a whiteness degree is at least 70 as measured in the form of a melt molded or formed product, and a production process thereof.
    Type: Application
    Filed: December 16, 2009
    Publication date: May 6, 2010
    Inventors: Hiroyuki Sato, Koichi Suzuki, Hirohito Kawama
  • Patent number: 7655748
    Abstract: A poly(arylene sulfide) having properties that a melt viscosity is 1 to 3,000 Pa·s as measured under conditions of a temperature of 310° C. and a shear rate of 1,216 sec?1, a pH is 7.0 to 12.0 as measured in a mixed solvent of water/acetone (volume ratio=2/1), a crystallization temperature is at most 220° C. as measured in the course of lowing the temperature of the polymer at a rate of 10° C./min from a molten state, and a whiteness degree is at least 70 as measured in the form of a melt molded or formed product, and a production process thereof.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: February 2, 2010
    Assignee: Kureha Corporation
    Inventors: Hiroyuki Sato, Koichi Suzuki, Hirohito Kawama
  • Patent number: 7569656
    Abstract: There is provided a method for producing a poly(arylene sulfide) in which a dihalo-aromatic compound and an alkali metal halide are polymerized by heating in an organic amide solvent, wherein the cooling time for the polymerization reaction system is significantly reduced. After the polymerization process, there is provided a cooling process for cooling the polymerization reaction system comprising a liquid phase containing the product poly (arylene sulfide) and the organic amide solvent and a vapor phase containing a gas component (A); and in the cooling process, the gas component (A) in the vapor phase is cooled while the content of a low boiling gas component (A1), which has a lower boiling point than water and exists in the gas component (A), is reduced in the vapor phase of the polymerization system.
    Type: Grant
    Filed: September 27, 2002
    Date of Patent: August 4, 2009
    Assignee: Kureha Corporation
    Inventors: Masaru Kagoshima, Mitsuhiro Matsuzaki
  • Publication number: 20090142566
    Abstract: It is aimed to provide a polyarylene sulfide film for an acoustic instrument vibrating plate excellent in heat resistance, molding processability, acoustic properties, and also heat moldability. Provided is a polyarylene sulfide film wherein the elongation at break in either a longitudinal direction or a width direction of the film is 100% or more and 250% or less, and the Young's modulus in either a longitudinal direction or a width direction of the film is 1.5 GPa or more and less than 4 GPa.
    Type: Application
    Filed: October 24, 2006
    Publication date: June 4, 2009
    Inventors: Tetsuya Machida, Yasuyuki Imanishi, Masatoshi Ohkura, Takuji Higashioji
  • Publication number: 20090105387
    Abstract: Stabilizer system for chlorinated polymers, especially PVC, comprising at least one coordination-polymeric triethanolamineperchlorato(triflato)metal inner complex comprising the monomer unit of the formula (A) The stabilizer system may additionally comprise substituted cyanoacetylureas or/and 6-aminouracils or/and 3-aminocrotonic esters or/and hydantoins or/and monomeric or polymeric dihydropyridines or alkaline earth metal hydroxides or/and hydrotalcites or/and dawsonites or/and zeolites or/and glycidyl compounds or/and cyanamides or/and cyanoguanidines or/and melamines. In addition, phosphites or/and sterically hindered amines or/and NOR-HALS compounds may be present.
    Type: Application
    Filed: August 25, 2008
    Publication date: April 23, 2009
    Inventors: Wolfgang Wehner, Trupti Dave, Thomas Wannemacher
  • Patent number: 7517946
    Abstract: In the dehydration step, a mixture comprising an organic amide solvent and a sulfur source is heated, vapor volatilized is guided to a distillation column, a fraction comprising the organic amide solvent as a principal component is refluxed into a reaction vessel, a fraction comprising water and hydrogen sulfide is cooled to discharge hydrogen sulfide that is not condensed by the cooling and reflux a part of water condensed into the distillation column, the remaining water is discharged, a relational expression between the total amount of water of an amount of water refluxed and an amount of water discharged without being refluxed, and an amount of hydrogen sulfide discharged from the reaction vessel is determined in advance, and an amount of hydrogen sulfide discharged from the reaction vessel is calculated out from a measured value of the total amount of water on the basis of the relational expression to control a charged molar ratio of the sulfur source to a dihalo-aromatic compound.
    Type: Grant
    Filed: December 19, 2003
    Date of Patent: April 14, 2009
    Assignee: Kureha Corporation
    Inventors: Hiroyuki Sato, Tatsuya Kawasaki, Yasushi Nakazawa
  • Patent number: 7504476
    Abstract: A dehydration step is conducted by heating a mixture containing an organic amide solvent and a sulfur source including an alkali metal hydrosulfide, and a part of an overall charged amount of an alkali metal hydroxide as needed. The mixture remaining within the system after the dehydration step is mixed with a dihalo-aromatic compound, the resultant mixture is heated to conduct a polymerization reaction, and the alkali metal hydroxide is added to the mixture for polymerization reaction continuously or in portions to control the pH of the mixture for polymerization reaction within a range of from 7 to 12.5 from the beginning to the end of the polymerization reaction. The poly(arylene sulfide) according to the present invention has a nitrogen content of at most 800 ppm.
    Type: Grant
    Filed: January 21, 2004
    Date of Patent: March 17, 2009
    Assignee: Kureha Corporation
    Inventors: Hirohito Kawama, Mitsuhiro Matsuzaki, Michihisa Miyahara, Koichi Suzuki, Hiroyuki Sato
  • Patent number: 7317072
    Abstract: The present invention is a process for the production of polyarylene sulfide based resin, wherein in washing a polyarylene sulfide based resin with a mixed solvent of an aprotic organic solvent and water in a softened or molten state, the polyarylene sulfide based resin partially dissolved in the washing liquid is recovered, to be specific, the polyarylene sulfide based resin dissolved in the washing liquid is precipitated, separated and recovered by cooling the washing liquid after washing and/or adding water to the washing liquid, and it is reused. According to the present invention, capable of being provided is a process for the production of polyarylene sulfide based resin in which the polyarylene sulfide based resin formed by polymerization is scarcely lost in washing the above resin with a solvent.
    Type: Grant
    Filed: October 2, 2003
    Date of Patent: January 8, 2008
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Senga, Koichi Suga, Tomio Ohno
  • Patent number: 7115704
    Abstract: This invention provides a method for producing a polyarylene sulfide, comprising the step of bringing a low-hydrated alkali metal sulfide containing respectively 0.05 to less than 0.8 mole of water and an organic amide solvent per mole of the sulfur contained in the alkali metal sulfide, into contact with a dihalogenated aromatic compound in an organic polar solvent for polymerization. This invention also provides a polyarylene sulfide obtained by the method. The problem to be solved by this invention is to provide a method for efficiently producing a polyarylene sulfide in a short time using an alkali metal sulfide small in water content and organic amide solvent content.
    Type: Grant
    Filed: July 23, 2004
    Date of Patent: October 3, 2006
    Assignee: TORAY Industries, Inc.
    Inventors: Shunsuke Horiuchi, Atsushi Ishio, Kei Saitoh
  • Patent number: 7091307
    Abstract: The present invention relates to a composition for optical materials, comprising (a) a compound having in one molecule at least one structure represented by the following Formula 1: wherein R1 is a single bond or a C1-10 hydrocarbon group, each of R2, R3 and R4 is a C1-10 hydrocarbon group or hydrogen, Y is O, 5, Se or Te, m is 1 to 5, and n is 0 to 5; (b) a compound having in one molecule at least one isocyanate group and/or at least one isothiocyanate group; (c) a compound having in one molecule at least one mercapto group; and (d) an inorganic compound having sulfur atom and/or selenium atom, and also relates to an optical material produced by polymerization curing the composition, a production method thereof, and an optical lens comprising the optical material. The present invention provides a high refractive, high Abbe's number optical material having an improved impact resistance.
    Type: Grant
    Filed: October 11, 2001
    Date of Patent: August 15, 2006
    Assignee: Mitsubishi Gas Chemical Company, Inc.
    Inventors: Yuichi Yoshimura, Motoharu Takeuchi, Hiroshi Horikoshi
  • Patent number: 7060785
    Abstract: A process for continuous production of a branched polyarylene sulfide, which includes pre-polymerizing a sulfur source with a dihalogenated aromatic compound in such a manner that the reaction rate of the dihalogenated aromatic compound is less than 95% so as to produce a polyarylene sulfide, prepolymer, and polymerizing the prepolymer in the presence of a branching agent while dispersing the phase of the polymer into the form of spherical droplets in the phase of a solvent. When the prepolymer is added to the solvent phase to which a phase separator is beforehand added, spherical droplets of the polymer phase can be produced.
    Type: Grant
    Filed: April 21, 2003
    Date of Patent: June 13, 2006
    Assignee: Idemitsu Kosan Co., Ltd.
    Inventors: Mikiya Hayashi, Kouichi Suga
  • Patent number: 7026439
    Abstract: There is disclosed a process for continuously producing a polyarylene sulfide which comprises reacting a sulfur source with a dihalogenated aromatic compound in an aprotic organic solvent, characterized by maintaining the content of the dihalogenated aromatic compound in the polymerization liquid after the substantial completion of the polymerization reaction at 5 mg/g or higher. It is made possible by the process according to the present invention to efficiently produce the polyarylene sulfide which has a high molecular weight and is excellent in thermal stability.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: April 11, 2006
    Assignees: Petroleum Energy Center, Idemitsu Kosan Co., Ltd.
    Inventors: Minoru Senga, Masaya Okamoto, Mikiya Hayashi
  • Patent number: 6939942
    Abstract: There is disclosed a process for treating a by-product salt of a polyarylene sulfide which comprises subjecting solid matter containing an aprotic organic solvent and the by-product salt that is formed in the case of producing a polyarylene sulfide by polymerization condensation reaction of an alkali metal sulfide and a dihalogenated aromatic compound in the aprotic organic solvent to a drying treatment followed by a firing treatment of the resultant dryingly treated matter at a temperature in the range of 500 to 1000° C. The above process is capable of enhancing the solubility in water, of the by-product salt comprising sodium chloride as the principal component in the production of polyarylene sulfide, and affording waste water which is lowered in SS and COD in the case where the by-product salt is dissolved in water and is discharged as waste water.
    Type: Grant
    Filed: March 14, 2002
    Date of Patent: September 6, 2005
    Assignees: Petroleum Energy Center, A Jurdical Incorporated Foundation, Idemitsu Kosan Co., Ltd.
    Inventor: Daigo Shirota
  • Patent number: 6844415
    Abstract: The polymerizable compositions comprise: A) at least one polyiso(thio)cyanate monomer, and at least one polythiol monomer; or at least one episulfide compound and optionally one or more compounds having two or more functional groups capable of reacting with episulfide groups; and B) as polymerization catalyst, an effective amount of a salt of formula MmP+Yn? Y? is an anion such as the corresponding acid YH has a pKa fulfilling the condition 0.5?pKa?14 with the proviso that when the polymerizable compositions comprise an episulfide compound and MP+ is an ammonium group, the polymerizable composition also comprises an electro-donor compound. Application to the fabrication of optical articles, such as lenses.
    Type: Grant
    Filed: January 31, 2003
    Date of Patent: January 18, 2005
    Assignee: Essilor International-Compagnie General D'Optique
    Inventors: Gabriel Keita, Pamela Ann McClimans, Steve Weber, Yassin Turshani
  • Patent number: 6841638
    Abstract: The invention relates to an ionic compound corresponding to the formula [R1X1(Z1)—Q?—X2(Z2)—R2]m Mm+ in which Mm+ is a cation of valency m, each of the groups Xi is S?Z3, S?Z4, P—R3 or P—R4; Q is N, CR5, CCN or CSO2R5, each of the groups Zi is ?O, ?NC?N, ?C(C?N)2, ?NS (?Z)2R6 or ?C[S(?Z)2R6]2, each of the groups Ri, is Y, YO—, YS—, Y2N— or F, Y represents a monovalent organic radical or alternatively Y is a repeating unit of a polymeric frame. The compounds are useful for producing ion conducting materials or electrolytes, as catalysts and for doping polymers.
    Type: Grant
    Filed: February 14, 2003
    Date of Patent: January 11, 2005
    Assignees: ACEP Inc., Universite de Montreal, Centre National de la Recherche Scientifique, Institute of Organic Chemistry National Academy of Sciences of Ukraine
    Inventors: Michel Armand, Christophe Michot, Yurii Yagupolskii, Lev Yagupolskii, Andrej Bezdudny, Natalya Kondratenko
  • Publication number: 20040249118
    Abstract: There is provided a method for producing a poly(arylene sulfide) in which a dihalo-aromatic compound and an alkali metal halide are polymerized by heating in an organic amide solvent, wherein the cooling time for the polymerization reaction system is significantly reduced. After the polymerization process, there is provided a cooling process for cooling the polymerization reaction system comprising a liquid phase containing the product poly (arylene sulfide) and the organic amide solvent and a vapor phase containing a gas component (A); and in the cooling process, the gas component (A) in the vapor phase is cooled while the content of a low boiling gas component (A1), which has a lower boiling point than water and exists in the gas component (A), is reduced in the vapor phase of the polymerization system.
    Type: Application
    Filed: March 25, 2004
    Publication date: December 9, 2004
    Inventors: Masaru Kagoshima, Mitsuhiro Matsuzaki
  • Patent number: 6743890
    Abstract: Provided is a method of purifying a polyarylene sulfide by washing it with a mixture of an aprotic organic solvent and an alkyl halide, or with a mixture prepared by adding a halogenoaromatic compound having an electron-withdrawing group to an aprotic organic solvent. The method makes it possible to reduce the impurities such as alkali metal halides in polyarylene sulfide, thus giving thermally stable polyarylene sulfide.
    Type: Grant
    Filed: July 17, 2002
    Date of Patent: June 1, 2004
    Assignees: Idemitsu Petrochemical Co., Ltd., Petroleum Energy Center(PEC)
    Inventor: Toru Bando
  • Publication number: 20040097700
    Abstract: A facility of collecting a component of high melting point in a gas, excellent in treating efficiency and having a relatively simple structure is provided.
    Type: Application
    Filed: August 8, 2003
    Publication date: May 20, 2004
    Applicants: Tsukishima Kikai Co., Ltd., Idemitsu Petrochemical Co., Ltd.
    Inventors: Kenji Oouchi, Kiwamu Ishii, Jyunji Wakayama, Tomio Ohno
  • Publication number: 20040087758
    Abstract: There is disclosed a process for treating a by-product salt of a polyarylene sulfide which comprises subjecting solid matter containing an aprotic organic solvent and the by-product salt that is formed in the case of producing a polyarylene sulfide by polymerization condensation reaction of an alkali metal sulfide and a dihalogenated aromatic compound in the aprotic organic solvent to a drying treatment followed by a firing treatment of the resultant dryingly treated matter at a temperature in the range of 500 to 1000° C. The above process is capable of enhancing the solubility in water, of the by-product salt comprising sodium chloride as the principal component in the production of polyarylene sulfide, and affording waste water which is lowered in SS and COD in the case where the by-product salt is dissolved in water and is discharged as waste water.
    Type: Application
    Filed: September 30, 2003
    Publication date: May 6, 2004
    Inventor: Daigo Shirota
  • Patent number: 6653437
    Abstract: A process for producing oxidative cross-linked polyarylene sulfide using a reaction apparatus including a reaction vessel provided with a resin inlet, a gas inlet, a resin outlet, and a gas outlet, and a transverse type heating member having a helical structure which is rotatable around a central shaft disposed in the reaction vessel. The process includes the step of supplying heated oxygen containing gas to the polyarylene sulfide from the downward direction of the transverse type heating member while the polyarylene sulfide is heated and agitated by the rotation of the transverse type heating member to carry out an oxidative cross-linking reaction of the polyarylene sulfide. According to the process, it becomes possible to increase the productivity and the gas components present in polyarylene sulfide can be effectively removed when the melt viscosity of polyarylene sulfide is increased to a desired degree after polymerizing the polyarylene sulfide.
    Type: Grant
    Filed: March 21, 2002
    Date of Patent: November 25, 2003
    Assignee: Dainippon Ink and Chemicals, Inc.
    Inventors: Toshio Hinokimori, Nobuhiko Yamauchi, Takayuki Mine
  • Patent number: 6646105
    Abstract: There is disclosed a process for treating a by-product salt from a polyarylene sulfide which comprises treating a solid mixture containing an aprotic organic solvent and the by-product salt that is formed in the case of producing the polyarylene sulfide by subjecting an alkali metal sulfide and a dihalogenated aromatic compound to polymerization condensation reaction in the aprotic organic solvent, characterized in that the aprotic organic solvent is recovered by dry treating the solid mixture by the use of a dryer having a self-cleaning property. It is enabled by the above process to efficiently recover the aprotic organic solvent, and thereby produce the objective polyarylene sulfide at a lower cost.
    Type: Grant
    Filed: March 26, 2002
    Date of Patent: November 11, 2003
    Assignees: Petroleum Energy Center, Idemitsu Petrochemical Co., Ltd.
    Inventor: Daigo Shirota
  • Patent number: 6600009
    Abstract: In the preparation of polyarylene sulfide (PAS) by reacting an alkali metal sulfide with a dihaloaromatic compound in an organic amide solvent to obtain a polyarylene sulfide slurry and subjecting the slurry to acid treatment, an acid or hydrogen salt is added to the slurry in such an amount that a pH of the slurry is more than 7.0 and at most 11.0 to carry out the acid treatment. Alternatively, a zinc compound in an amount of 0.1 to 1.5 mole % per mole of the alkali metal sulfide supplied is added to the polyarylene sulfide slurry to treat the slurry, and, then, an acid or hydrogen salt in an amount of at least 0.2 mole % per mole of the alkali metal sulfide supplied is added. The PAS thus obtained has high crystallization speed, high whiteness, high mechanical strength and high melt viscosity, V6.
    Type: Grant
    Filed: October 24, 1997
    Date of Patent: July 29, 2003
    Assignee: Dainippon Ink and Chemicals, Incorporated
    Inventors: Satoshi Inoue, Osamu Komiyama
  • Patent number: 6566488
    Abstract: Provided are a polyarylene sulfide having a chloroform soluble content of at most 0.5% by weight and having an inherent viscosity &eegr;inh of from 0.05 to 0.4; a polyarylene sulfide resin composition comprising a polyarylene sulfide and an inorganic filler, of which the chloroform soluble content is at most 0.5% by weight relative to the polyarylene sulfide in the composition; car parts produced through injection molding of the composition; and a method for producing a polyarylene sulfide. The polyarylene sulfide has a reduced content of low-molecular components, and has well balanced properties of fluidity, flexural strength and impact resistance.
    Type: Grant
    Filed: March 15, 2002
    Date of Patent: May 20, 2003
    Assignees: Idemitsu Kosan Co., Ltd., Idemitsu Petrochemical Co., Ltd., Petroleum Energy Center (PEC)
    Inventors: Masaya Okamoto, Toru Bando
  • Patent number: 6562900
    Abstract: Provided is a production process for polyarylene sulfide having a high molecular weight and an excellent heat stability. It is a production process for polyarylene sulfide by reacting a dihalogenoaromatic compound with metal sulfide in a polar solvent, wherein all or a part of water required for the reaction is added on a condition that the reaction system is 100° C. or higher, whereby obtained is polyarylene sulfide which is reduced in an intrinsic viscosity [&eegr;] by 0.05 deciliter/g or less at 206° C. when added to an N-methyl-2-pyrrolidone solvent is the polyarylene sulfide of an amount equivalent to the solvent and it is maintained at 265° C. for 8 hours.
    Type: Grant
    Filed: July 2, 2001
    Date of Patent: May 13, 2003
    Assignees: Petroleum Energy Center, Idemitsu Petrochemical Co., Ltd.
    Inventors: Masaya Okamoto, Minoru Senga, Toru Bando
  • Patent number: 6562238
    Abstract: In a multistage counter current wash operation wherein an original solvent contained in a cake of polymeric material is displaced with a wash solvent which enters the final stage and progresses forwardly a mathematical model of the counter current wash operation is developed for providing a feedforward control system. In use, the feedforward control system maintains a desired weight fraction of the original solvent that remains in the cake exiting the final wash stage at a desired low level by manipulating the wash solvent flow rate as a function of the flow rate of the feed material. Additionally a feedback control is used in conjunction with the feedforward control.
    Type: Grant
    Filed: December 29, 1998
    Date of Patent: May 13, 2003
    Assignee: Phillips Petroleum Company
    Inventors: Jeffrey S. Fodor, Fernando C. Vidaurri, Jr.
  • Publication number: 20030065131
    Abstract: In the preparation of polyarylene sulfide (PAS) by reacting an alkali metal sulfide with a dihaloaromatic compound in an organic amide solvent to obtain a polyarylene sulfide slurry and subjecting the slurry to acid treatment, an acid or hydrogen salt is added to the slurry in such an amount that a pH of the slurry is more than 7.0 and at most 11.0 to carry out the acid treatment. Alternatively, a zinc compound in an amount of 0.1 to 1.5 mole % per mole of the alkali metal sulfide supplied is added to the polyarylene sulfide slurry to treat the slurry, and, then, an acid or hydrogen salt in an amount of at least 0.2 mole % per mole of the alkali metal sulfide supplied is added.
    Type: Application
    Filed: October 24, 1997
    Publication date: April 3, 2003
    Inventors: SATOSHI INOUE, OSAMU KOMIYAMA
  • Publication number: 20020193558
    Abstract: A process for producing oxidative cross-linked polyarylene sulfide using a reaction apparatus including a reaction vessel provided with a resin inlet, a gas inlet, a resin outlet, and a gas outlet, and a transverse type heating member having a helical structure which is rotatable around a central shaft disposed in the reaction vessel. The process includes the step of supplying heated oxygen containing gas to the polyarylene sulfide from the downward direction of the transverse type heating member while the polyarylene sulfide is heated and agitated by the rotation of the transverse type heating member to carry out an oxidative cross-linking reaction of the polyarylene sulfide. According to the process, it becomes possible to increase the productivity and the gas components present in polyarylene sulfide can be effectively removed when the melt viscosity of polyarylene sulfide is increased to a desired degree after polymerizing the polyarylene sulfide.
    Type: Application
    Filed: March 21, 2002
    Publication date: December 19, 2002
    Inventors: Toshio Hinokimori, Nobuhiko Yamauchi, Takayuki Mine
  • Patent number: 6492448
    Abstract: A resin composition is provided which composition comprises 100 parts by weight of (A) polyarylene sulfide, and 0.01 to 5.0 parts by weight of (B) a product compound of an element selected from the group consisting of group IIA and group IIB of the periodic table, wherein said product compound has such alkalinity that a mixture of said product compound with a 20-fold weight of ultrapure water of grade A4 specified in the Japanese Industrial Standards (JIS) K0557 has a pH of from 10.0 to 12.0. The composition is particularly suited to be used for an optical instrument part such as an object lens driving unit and the like.
    Type: Grant
    Filed: July 11, 2000
    Date of Patent: December 10, 2002
    Assignee: Dainippon Ink and Chemicals, Incorporated
    Inventors: Masaru Miyoshi, Osamu Komiyama
  • Patent number: 6489437
    Abstract: Provided is a polyarylene sulfide resin composition having well-balanced fluidity and mechanical strength. The composition is such that its spiral flow length, x (mm), to give a molding having a thickness of 1 mm and the flexural strength, y (MPa), of the molding satisfy the following numerical formula (I), and comprises (A) from 50 to 70 parts by weight of a polyarylene sulfide resin, (B) from 30 to 50 parts by weight of glass fibers and (C) from 0 to 3 parts by weight, relative to 100 parts by weight of the polyarylene sulfide resin (A), of a coupling agent. y≧−(3x/10)+340  (I) wherein x falls between 100 and 300.
    Type: Grant
    Filed: July 8, 1999
    Date of Patent: December 3, 2002
    Assignees: Idemitsu Kosan Co., Ltd., Idemitsu Petrochemical Co., Ltd., Petroleum Energy Center (PEC)
    Inventors: Masaya Okamoto, Toru Bando
  • Publication number: 20020161172
    Abstract: Provided are a polyarylene sulfide resin and its composition of which the moldings are burred little and which has good mechanical properties and good flow moldability. The composition comprises from 20 to 90% by weight of a polyarylene sulfide and from 10 to 80% by weight of an inorganic filler, and is characterized in that its burrs are on the level of at most 120 &mgr;m, that it has a weld strength of at least 50 MPa and that the length of its spiral flow having a thickness of 1 mm is at least 100 mm. Preferably, the polyarylene sulfide to be in the composition has a specific index to the degree of branching and a specific flexural strength.
    Type: Application
    Filed: March 8, 2002
    Publication date: October 31, 2002
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Masaya Okamoto, Minoru Senga, Koichi Suga, Kenji Seki
  • Publication number: 20020143140
    Abstract: There is disclosed a process for treating a by-product salt from a polyarylene sulfide which comprises treating a solid mixture containing an aprotic organic solvent and the by-product salt that is formed in the case of producing the polyarylene sulfide by subjecting an alkali metal sulfide and a dihalogenated aromatic compound to polymerization condensation reaction in the aprotic organic solvent, characterized in that the aprotic organic solvent is recovered by dry treating the solid mixture by the use of a dryer having a self-cleaning property. It is enabled by the above process to efficiently recover the aprotic organic solvent, and thereby produce the objective polyarylene sulfide at a lower cost.
    Type: Application
    Filed: March 26, 2002
    Publication date: October 3, 2002
    Applicant: Petroleum Energy Center
    Inventor: Daigo Shirota
  • Patent number: 6437091
    Abstract: A process is provided for curing poly(arylene sulfide) polymers by achieving and maintaining curing conditions in a cure vessel, then intermittently adding uncured polymer to said cure vessel and intermittently removing polymer from the cure vessel wherein the removal of polymer from the cure vessel is performed at intervals such that the presence of uncured polymer is minimized or avoided.
    Type: Grant
    Filed: December 30, 1999
    Date of Patent: August 20, 2002
    Assignee: Philips Petroleum Company
    Inventors: Jeffrey S. Fodor, Aubrey South, Jr., Fernando C. Vidaurri, Jr.
  • Patent number: 6437024
    Abstract: A process is provided to recover at least one modifier compound and at least one polar organic compound from a poly(arylene sulfide) reaction mixture comprising high molecular weight poly(arylene sulfide), low molecular weight poly(arylene sulfide), cyclic and linear poly(arylene sulfide) oligomers, at least one polar organic compound, at least one modifier compound, and an alkali metal halide by-product.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: August 20, 2002
    Assignee: Phillips Petroleum Company
    Inventors: Fernando C. Vidaurri, Jr., James W. Waterman, Jon F. Geibel
  • Publication number: 20020062003
    Abstract: Provided is a polyarylene sulfide resin composition having well-balanced fluidity and mechanical strength. The composition is such that its spiral flow length, x (mm), to give a molding having a thickness of 1 mm and the flexural strength, y (MPa), of the molding satisfy the following numerical formula (I), and comprises (A) from 50 to 70 parts by weight of a polyarylene sulfide resin, (B) from 30 to 50 parts by weight of glass fibers and (C) from 0 to 3 parts by weight, relative to 100 parts by weight of the polyarylene sulfide resin (A), of a coupling agent.
    Type: Application
    Filed: July 8, 1999
    Publication date: May 23, 2002
    Inventors: MASAYA OKAMOTO, TORU B BANDO
  • Patent number: 6369191
    Abstract: A particle size of polyarylene sulfide obtained in polymerization is controlled by a process characterized in that a gaseous phase part of a reactor is cooled or heated after starting decreasing a temperature of a reaction system o an end of precipitation of polyarylene sulfide formed In an embodiment, a water content in the reaction system is 0.8 to 1.
    Type: Grant
    Filed: July 21, 1995
    Date of Patent: April 9, 2002
    Assignee: Dainippon Ink and Chemicals, Incorporated
    Inventors: Yoichi Imai, Osamu Komiyama, Kazuhiro Ichikawa
  • Patent number: 6365274
    Abstract: Powders of oxidized polyarylene sulfide and powders comprising from 1 to 99% by weight of oxidized polyarylene sulfide and from 1 to 99% by weight of a metal, carbide, ceramic or high temperature polyimide, polyamide imide, polyester imide and aromatic polyester plastic, or a mixture thereof are very suitable for use in thermal spraying and thereby form coatings having a strong chemical and mechanical resistance and high dimensional stability when exposed to high and low temperatures. Such coatings are advantageous for use as abradable seal clearance control coating in the compressor section of gas turbine engines, motor vehicle turbochargers and superchargers, and for use as a coating of reaction vessels, kitchen ware, sealings or bearings.
    Type: Grant
    Filed: February 25, 1999
    Date of Patent: April 2, 2002
    Assignee: Ticona GmbH
    Inventors: DI. Helmut Scheckenbach, Christopher William Smith
  • Patent number: 6350852
    Abstract: The process for preparing sulfur-containing polymers, in particular polyarylene sulfides, from at least one sulfide and at least one aromatic dihalogen compound, in a solvent, is carried out in the steps: a) a mixture of aromatic dihalogen compound and sulfide is polymerized, b) aromatic dihalogen compound and sulfide are added to the polymerized mixture and c) the reaction mixture is polymerized further. The sulfur-containing polymers prepared by the process are distinguished by high purity and good mechanical properties.
    Type: Grant
    Filed: February 10, 1999
    Date of Patent: February 26, 2002
    Assignee: Ticona GmbH
    Inventors: Michael Haubs, Reinhard Wagener
  • Patent number: 6331608
    Abstract: A process is provided to recover at least one modifier compound and at least one polar organic compound from a reaction mixture comprising high molecular weight Poly(arylene sulfide) product, low molecular weight P(AS), cyclic and linear P(AS) oligomers, at least one POC, at least one modifier, an alkali metal halide by-product, and water.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: December 18, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Fernando C. Vidaurri, Jon F. Geibel, James W. Waterman, Jay M. Chaffin, Aubrey South, Jr., Jeffrey S. Fodor, Glenn F. Kile
  • Publication number: 20010047053
    Abstract: Provided is a polyarylene sulfide resin composition of which the moldings are burred little and which has good mechanical properties and good flow moldability. The composition comprises from 20 to 90% by weight of a polyarylene sulfide and from 10 to 80% by weight of an inorganic filler, and is characterized in that its burrs are on the level of at most 120 &mgr;m, that it has a weld strength of at least 50 MPa and that the length of its spiral flow having a thickness of 1 mm is at least 100 mm. Preferably, the polyarylene sulfide to be in the composition has a specific index to the degree of branching and a specific flexural strength.
    Type: Application
    Filed: June 27, 2001
    Publication date: November 29, 2001
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Masaya Okamoto, Minoru Senga, Koichi Suga, Kenji Seki
  • Patent number: 6307011
    Abstract: A process is provided to recover at least one modifier compound and at least one polar organic compound from a P(AS) recycle mixture.
    Type: Grant
    Filed: September 13, 1999
    Date of Patent: October 23, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Jeffrey S. Fodor, Jon F. Geibel, Fernando C. Vidaurri
  • Patent number: 6281326
    Abstract: A process is provided for producing a poly(arylene sulfide) polymer which employs waste material comprising poly(arylene sulfide) polymer that is normally discarded or otherwise disposed of, wherein the waste stream is contacted with a polymerization reaction mixture under polymerization conditions. The waste material can optionally contain other components such as cyclic and linear oligomers, inorganic salts, polar organic compounds and water.
    Type: Grant
    Filed: September 13, 1993
    Date of Patent: August 28, 2001
    Assignee: Phillips Petroleum Company
    Inventors: Carlton E. Ash, Jon F. Geibel
  • Patent number: 6262224
    Abstract: Polyaryiene sulfone fiber material, especially web, is obtained by oxidizing polyarylene sulfide fiber material with a peracid/acid mixture of an organic acid at 60 to 100° C. for 10 seconds to 45 minutes. Since this process provides a substantative degree of oxidation within a very short reaction time, one advantage of the process is that the rapidity of the oxidation renders continuous processes for oxidizing polyarylene sulfide fibers economical.
    Type: Grant
    Filed: April 12, 2000
    Date of Patent: July 17, 2001
    Assignee: Ticona GmbH
    Inventors: Dirk Zierer, Martin Brück, Helmut Scheckenbach