公开(公告)号：US20200056040A1

公开(公告)日：2020-02-20

申请号：US16661976

申请日：2019-10-23

Applicant: SK CHEMICALS CO., LTD.

Inventor： Se-Ho LEE ,  Sung-Gi KIM

IPC: C08L81/04 ,  C08L33/14 ,  C08K7/14 ,  C08G75/14 ,  C08G75/0213 ,  C08G75/0263 ,  C08G75/029 ,  C08L81/02 ,  C08G75/02

Abstract: The present invention relates to a polyarylene sulfide resin composition having good processability and showing excellent properties due to its more improved miscibility with other polymer materials or fillers, and a formed article. Such polyarylene sulfide resin composition includes a polyarylene sulfide including a disulfide repeating unit in the repeating units of the main chain; and at least one component selected from the group consisting of a thermoplastic resin, a thermoplastic elastomer, and a filler.

公开(公告)号：US10538629B2

公开(公告)日：2020-01-21

申请号：US16089407

申请日：2017-02-28

Applicant: Kureha Corporation

Inventor： Michihisa Miyahara ,  Kenji Suzuki ,  Hiroshi Sakabe

IPC: C08G75/0259 ,  C08G75/02 ,  B01J19/00 ,  B01J4/00 ,  B01J19/06 ,  B01J19/24 ,  C08G75/0213 ,  C08F2/01

Abstract: Provided are a device for continuously producing poly(arylene sulfide) (hereinafter, referred to as PAS) and a method for continuous PAS production with which resource savings, energy savings, and a reduction in equipment cost are rendered possible. The device for continuous PAS production according to the present invention includes a housing chamber for housing a plurality of reaction cells; wherein the housing chamber is supplied with at least an organic amide solvent, a sulfur source, and a dihalo aromatic compound. In the reaction cells, the sulfur source is polymerized with the dihalo aromatic compound in the organic amide solvent to form a reaction mixture. The reaction cells communicate with each other through a gas phase within the housing chamber. The reaction cells are sequentially connected, and the reaction mixture sequentially moves to each reaction cell.

公开(公告)号：US20180303979A1

公开(公告)日：2018-10-25

申请号：US15496473

申请日：2017-04-25

Applicant: International Business Machines Corporation ,  Agency for Science, Technology and Research

Inventor： Amos Cahan ,  Mareva B. Fevre ,  James L. Hedrick ,  Nathaniel H. Park ,  Theodore G. van Kessel ,  Rudy J. Wojtecki ,  Yi Yan Yang

IPC: A61L31/10 ,  A61L29/08 ,  A61L29/16 ,  A61L31/16 ,  A61L27/34 ,  A61L27/54 ,  A61L27/50 ,  C08G75/20 ,  C09D181/06 ,  C08G75/0227 ,  C08G75/0213 ,  C09D181/02 ,  B05D1/00 ,  B05D3/02

Abstract: Antibacterial coatings and methods of making the antibacterial coatings are described herein. In particular, a method for forming an organocatalyzed polythioether coating is provided in which a first solution including a bis-silylated dithiol and a fluoroarene is prepared. A second solution including an organocatalyst is prepared. The first solution and the second solution are mixed to form a mixed solution. The mixed solution is applied to a substrate, and the substrate is cured.

公开(公告)号：US20180112042A1

公开(公告)日：2018-04-26

申请号：US15559188

申请日：2016-03-31

Applicant: Kureha Corporation

Inventor： Akihiro KONNO ,  Hiroyuki SATO

IPC: C08J3/12 ,  C08G75/0281 ,  C08G75/0213 ,  C08G75/0259

CPC classification number: C08G75/0277 ,  C08G75/02 ,  C08G75/0213 ,  C08G75/0254 ,  C08G75/0259 ,  C08G75/0281 ,  C08J3/12

Abstract: Provided is a method for manufacturing fine polyarylene sulfide (PAS) powder, in which impurities such as alkali metal salts and/or PAS oligomers are reduced while the wettability of the fine PAS powder in a fine PAS powder-containing solid is retained after solid-liquid separation of a separation liquid obtained by subjecting a dispersion liquid containing granular PAS to separation into granular PAS and a separation liquid; and a fine PAS powder.The method for manufacturing a fine PAS powder of the present invention includes: (a) separating granular PAS and a separation liquid from a dispersion liquid containing granular PAS, by solid-liquid separation using at least one screen that has an opening diameter of 75 to 180 μm; (b) performing solid-liquid separation of the separation liquid to obtain a fine PAS powder-containing solid; (c) heating the fine PAS powder-containing solid to reduce an amount of an organic solvent to obtain a wet cake; and (d) washing the wet cake using an aqueous solvent. The water content of the wet cake after heating is at least 30 wt. %.

公开(公告)号：US09908974B2

公开(公告)日：2018-03-06

申请号：US15303032

申请日：2015-04-21

Applicant: Kureha Corporation

Inventor： Masanori Kobayashi ,  Tomoyoshi Koizumi ,  Mitsuhiro Matsuzaki ,  Hirohito Kawama

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

CPC classification number: C08G75/0281 ,  B01D29/11 ,  B01D29/66 ,  B08B3/04 ,  C08G75/0209 ,  C08G75/0213 ,  C08G75/0254 ,  C08G75/0259 ,  C08G75/04

Abstract: 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

Applicant: Toray Industries, Inc.

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

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

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

Abstract: 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.