公开(公告)号：US20210147630A1

公开(公告)日：2021-05-20

申请号：US16622964

申请日：2018-06-26

申请人： DIC Corporation

发明人： Masaya Kadoki ,  Saori Nara ,  Taku Ibaraki ,  Hideki Watanabe ,  Satoshi Inoue

IPC分类号： C08G75/0259 ,  C08G75/0254 ,  C08G75/0213 ,  C08J5/00 ,  C08J3/20

摘要： Provided is a method for producing a polyarylene sulfide resin, the method including subjecting a dihaloaromatic compound and a sulfidizing agent to a polymerization reaction in the presence of an aliphatic cyclic compound having a ring openable by hydrolysis, in which corrosion of a production apparatus is suppressed. More particularly, provided is a method for producing a polyarylene sulfide resin, the method including a dehydration step (1) in which a water-containing sulfidizing agent and an aliphatic cyclic compound having a ring openable by hydrolysis are heated in the presence of a dihaloaromatic compound to a liquid temperature in the range of 90° C. or higher and 170° C. or lower under the atmospheric pressure, and then dehydration is performed while maintaining the liquid temperature and reducing the pressure to a pressure in the range of 30 [kPa abs] or higher and 80 [kPa abs] or lower to thus obtain a mixture.

公开(公告)号：US20200347186A1

公开(公告)日：2020-11-05

申请号：US16957934

申请日：2018-07-12

申请人： ZHEJIANG NHU COMPANY LTD. ,  ZHEJIANG UNIVERSITY ,  ZHEJIANG NHU SPECIAL MATERIALS CO., LTD.

发明人： Woyuan LI ,  Hong YIN ,  Zhirong CHEN ,  Baishan HU ,  Guiyang ZHOU ,  Hangjun DENG ,  Ming LIAN ,  Xiongwei ZHANG ,  Qichuan LI ,  Jiang ZHAO

IPC分类号： C08G75/0254 ,  C08G75/029 ,  C08G75/0213

摘要： The present application relates to a method for extracting coenzyme Q10 and a phospholipid from a coenzyme Q10 fermentation bacterium powder. The method is characterized in that the fermentation bacterium powder of a coenzyme Q10 production strain is subjected to extraction with a mixed solvent of which the three-dimensional Hansen solubility parameter is between 21 and 23 (J/cm3)1/2 and the hydrogen bonding solubility parameter thereof is between 10 and 12 (J/cm3)1/2. The present invention can efficiently extract two products, namely coenzyme Q10 and a phospholipid, from the coenzyme Q10 fermentation bacterium powder; the process thereof is highly operable, easy to be industrialized, and can provide a product with high purity and yield, having great economic benefit.

公开(公告)号：US20200024402A1

公开(公告)日：2020-01-23

申请号：US16481721

申请日：2018-02-05

申请人： Kureha Corporation

发明人： Akihiro KONNO ,  Ken-ichi TAKAKI

IPC分类号： C08G75/0209 ,  C08G75/0254

摘要： To provide a method for producing granular polyarylene sulfide (hereinafter, PAS), the method capable of providing granular PAS having high particle strength and low melt viscosity in high yield without using special additives and the like; and granular PAS.A method according to the present invention is a method for producing granular PAS having a melt viscosity of from 1 to 30 Pa.s, which is measured at a temperature of 310° C. and a shear rate of 1216/s, by polymerizing a sulfur source and a dihalo aromatic compound in an organic amide solvent.

公开(公告)号：US09908974B2

公开(公告)日：2018-03-06

申请号：US15303032

申请日：2015-04-21

申请人： Kureha Corporation

发明人： Masanori Kobayashi ,  Tomoyoshi Koizumi ,  Mitsuhiro Matsuzaki ,  Hirohito Kawama

IPC分类号： C08G75/04 ,  C08G75/0281 ,  C08G75/0254 ,  C08G75/0213 ,  B01D29/11 ,  B01D29/66 ,  B08B3/04 ,  C08G75/0209 ,  C08G75/0259

CPC分类号： C08G75/0281 ,  B01D29/11 ,  B01D29/66 ,  B08B3/04 ,  C08G75/0209 ,  C08G75/0213 ,  C08G75/0254 ,  C08G75/0259 ,  C08G75/04

摘要： The present invention provides a production method and a production apparatus for a polyarylene sulfide (PAS), thus the formation of a floating polymer and the leakage of the floating polymer to the outside of the vessel in a washing step are prevented, to achieve steady production of the polymer with high quality, to improve the yield of the polymer and to reduce environmental load, wherein the floating polymer refers to a particles of the polymer which are floating on the surface of a washing solution, in the upper part of the inside of a washing vessel, as a result of the adhesion of a gas onto the surface of the particles of the polymer.The present invention provides a production method for a PAS comprising step (I), performing polymerization, step (II), separating and collecting a polymer, step (III), washing a slurry, and step (IV), collecting the polymer after washing, wherein an aqueous medium is sprayed onto a PAS floating on the surface of the aqueous washing solution in the upper part of the inside of the washing vessel in step (III) (step (IIIa), washing a slurry using a counter current, and/or step (IIIb), treating a slurry with acid using a counter current, or the like); and a production apparatus for a PAS comprising a washing device (counter current washing device and/or a counter current contact/acid treatment device or the like) having an aqueous medium spray means.

公开(公告)号：US20170198414A1

公开(公告)日：2017-07-13

申请号：US15315042

申请日：2015-05-22

申请人： Toray Industries, Inc.

发明人： Hiroo Katsuta ,  Takaaki Mihara ,  Daisuke Yamamoto ,  Shunsuke Horiuchi ,  Yoshitsugu Funatsu

IPC分类号： D01F6/76 ,  C08G75/0213 ,  C08G75/0277 ,  C08G75/0254 ,  D01D5/08 ,  D02J1/22

CPC分类号： D01F6/765 ,  C08G75/0213 ,  C08G75/0254 ,  C08G75/0277 ,  D01D5/08 ,  D01D10/02 ,  D01F6/94 ,  D02J1/224

摘要： A poly(phenylene sulfide) fiber contains 1-10% by weight of a poly(phenylene sulfide) oligomer having a weight-average molecular weight of 5,000 or less, has a difference between a cold crystallization heat quantity (ΔHc) and a crystal melting heat quantity (ΔHm) during temperature rising in DSC, ΔHm−ΔHc, of 25 J/g or larger, and has an elongation of less than 40% and a strength of 3.0 cN/dtex or higher. The poly(phenylene sulfide) fiber has high heat resistance and chemical resistance and high strength and, despite this, has excellent suitability for high-order processing, e.g., thermal shapability, because the amorphous parts thereof have high molecular movability.

公开(公告)号：US4771120A

公开(公告)日：1988-09-13

申请号：US1047

申请日：1987-01-07

申请人： Wolfgang Alewelt ,  Franz Alfes ,  Wolfgang Eisermann ,  Wolfgang Jakob ,  Erhard Tresper

发明人： Wolfgang Alewelt ,  Franz Alfes ,  Wolfgang Eisermann ,  Wolfgang Jakob ,  Erhard Tresper

IPC分类号： C08G75/0231 ,  C08G75/0254 ,  C08G75/06 ,  C08G75/16

CPC分类号： C08G75/0254 ,  C08G75/0231

摘要： The invention relates to polyarylene sulphides with melt viscosities settable to defined values. The products are distinguished by high stability of the melt. They are obtained by adding, in the preparation of these polyarylene sulphides, certain phenols as chain terminators to the reaction mixture.

摘要翻译： 本发明涉及熔融粘度可设定为规定值的聚亚芳基硫醚。 产品的特点是熔体的高稳定性。 它们是通过在制备这些聚亚芳基硫醚中将某些酚作为链终止剂加入到反应混合物中而获得的。

公开(公告)号：US4595748A

公开(公告)日：1986-06-17

申请号：US661201

申请日：1984-10-15

申请人： Edgar Ostlinning ,  Karsten Idel

发明人： Edgar Ostlinning ,  Karsten Idel

IPC分类号： C08G75/0231 ,  C08G75/0254 ,  C08G75/06 ,  C08G75/14

CPC分类号： C08G75/0231 ,  C08G75/0254

摘要： This invention relates to a process for the preparation of high molecular weight, optionally branched polyarylene sulphides. These may be prepared in polar organic solvents in the absence of water, substances containing water being dehydrated in the reaction mixture before the reaction.

摘要翻译： 本发明涉及制备高分子量，任意支化的聚亚芳基硫醚的方法。 这些可以在没有水的情况下在极性有机溶剂中制备，在反应之前在反应混合物中含有水被脱水的物质。

公开(公告)号：US4500702A

公开(公告)日：1985-02-19

申请号：US550871

申请日：1983-11-14

申请人： Edgar Ostlinning ,  Karsten Idel

发明人： Edgar Ostlinning ,  Karsten Idel

IPC分类号： C08G75/0231 ,  C08G75/0254 ,  C08G75/06 ,  C08G75/14

CPC分类号： C08G75/0254 ,  C08G75/0231

摘要： This invention relates to a process for the production of high molecular weight, optionally branched polyarylene sulphides. These polyarylene sulphides may be produced in a polar organic solvent in the absence of water in a one-vessel reaction.

摘要翻译： 本发明涉及生产高分子量，任意支化的聚亚芳基硫化物的方法。 这些聚亚芳基硫化物可以在单壁反应中在没有水的情况下在极性有机溶剂中制备。

公开(公告)号：US20220380598A1

公开(公告)日：2022-12-01

申请号：US17775976

申请日：2020-11-18

申请人： Toray Industries, Inc.

发明人： Shunsuke Kondo ,  Kazuya Okubo ,  Koki Fukuyasu

IPC分类号： C08L81/02 ,  C08G75/0254 ,  C08K7/14 ,  C08K5/5465

摘要： A polyphenylene sulfide resin composition for automotive cooling parts contains, with respect to 100 parts by weight of a polyphenylene sulfide resin (A): 30 to 110 parts by weight of glass fibers (B); and 0.1 to 3 parts by weight of a silane compound (C) having a functional group selected from an amino group and an isocyanate group. In this polyphenylene sulfide resin composition, the PPS resin (A) has a number-average molecular weight of 7,000 to 14,000, and gives a residue amount of 2.0 to 5.0% by weight when dissolved in 20-fold amount by weight of 1-chloronaphthalene at 250° C. for 5 minutes and subsequently subjected to heat pressure filtration through a PTFE membrane filter having a pore size of 1 μm.

公开(公告)号：US20210214503A1

公开(公告)日：2021-07-15

申请号：US17273261

申请日：2019-10-18

申请人： LG CHEM, LTD.

发明人： Hansol Kim ,  Joong Jin Han ,  Sanghwan Jo

IPC分类号： C08G75/0281 ,  C08G75/0254

摘要： The present disclosure relates to a method of more efficiently separating and purifying a polyarylene sulfide exhibiting excellent strength, heat resistance, flame retardancy, and processability when processed into a molded product after polymerization.