公开(公告)号：US10988639B2

公开(公告)日：2021-04-27

申请号：US15565587

申请日：2016-03-29

Applicant: LG Chem, Ltd.

Inventor： Bo-Ra Yeon ,  Kyung-Joon Yoon ,  Jang-Soon Kim ,  Jin-Young Huh ,  Min-Kyeong Pyo

IPC: C09J4/06 ,  C08F265/06 ,  C08F290/06 ,  G02F1/1333 ,  C09J9/00 ,  C09J5/00 ,  C09J11/08

Abstract: Provided is a photocurable composition for an optical bonding agent, including an acrylic photocurable compound and a plasticizer, in which the acrylic photocurable compound includes a monofunctional acrylic photocurable monomer and a (meth)acrylate-based photocurable polymer having a weight average molecular weight of 50,000 g/mol or less, and the monofunctional acrylic photocurable monomer is included in an amount of more than 0 wt % and 15 wt % or less in the photocurable composition for the optical bonding agent.

公开(公告)号：US20210101867A1

公开(公告)日：2021-04-08

申请号：US15733503

申请日：2019-02-13

Applicant: 3M INNOVATIVE PROPERTIES COMPANY

Inventor： Kevin M. Lewandowski ,  Stephen B. Roscoe ,  Babu N. Gaddam ,  Bryan T. Whiting ,  John L. Battiste

IPC: C07C329/16 ,  C08F265/06 ,  C09J133/08 ,  C09J7/38 ,  C09J4/06 ,  C08F293/00

Abstract: Controlled radical initiators, reaction mixtures containing the controlled radical initiators and various ethylenically unsaturated monomers, polymeric materials formed from the reaction mixtures, crosslinkable compositions containing the polymeric materials, crosslinked compositions formed from the crosslinkable compositions, and various articles are provided. The controlled radical initiators are bis-dithiocarbamate or bis-dithiocarbonate compounds having a carbonyl group between the two dithiocarbamate or dithiocarbonate groups.

公开(公告)号：US20210009802A1

公开(公告)日：2021-01-14

申请号：US17033241

申请日：2020-09-25

Applicant: KANEKA CORPORATION

Inventor： Sota Okumura ,  Yusuke Hirai ,  Takamasa Soejima

IPC: C08L51/00 ,  C08F220/44 ,  C08F214/06 ,  C08F265/06 ,  C08K5/42 ,  C08K5/1575

Abstract: A thermoplastic acrylic resin is provided. The thermoplastic acrylic resin is a graft copolymer in which a stem polymer is an acrylic resin containing acrylonitrile and another ethylenically unsaturated monomer, and a branch polymer is a polymer composed of an ethylenically unsaturated monomer. The acrylonitrile is contained in an amount of 35 mass % or more and 84.5 mass % or less, the other ethylenically unsaturated monomer is contained in an amount of 15 mass % or more and 64.5 mass % or less, and the polymer composed of an ethylenically unsaturated monomer is contained in an amount of 0.5 mass % or more and 40 mass % or less. Thus, provided are a thermoplastic acrylic resin having improved melt-processability without compromising heat resistance, a method for producing the thermoplastic acrylic resin, a thermoplastic acrylic resin composition, a molded body, an acrylic fiber, and a method for producing the acrylic fiber.

公开(公告)号：US20210002437A1

公开(公告)日：2021-01-07

申请号：US17023904

申请日：2020-09-17

Applicant: KANEKA CORPORATION

Inventor： Haruki Koyama ,  Hanako Hasebe ,  Katsumi Yamaguchi ,  Yukihiro Shimamoto

IPC: C08J5/18 ,  C08L51/04 ,  B32B27/08 ,  C08F265/06 ,  B32B27/30 ,  C08J7/046 ,  C08F285/00

Abstract: An acrylic resin film is provided that may include graft copolymer particles (A) with a multilayer structure and graft copolymer particles (B) with a multilayer structure, wherein the graft copolymer particles (A) may have an average particle size in the range of 20 to 150 nm, the graft copolymer particles (B) may have a larger average particle size than the graft copolymer particles (A). The graft copolymer particles (A) may include a cross-linked elastomer (A1) and a graft polymer layer (A2), the graft polymer layer (A2) being closer to a surface layer than the cross-linked elastomer (A1). Further, a constituent unit may be derived from an acrylate with an alkyl ester moiety having two or more carbon atoms constitutes 8% or less by mass of the graft polymer layer (A2), the graft copolymer particles (B) may contain a cross-linked elastomer (B1).

公开(公告)号：US10858470B2

公开(公告)日：2020-12-08

申请号：US16325440

申请日：2017-08-09

Applicant: INEOS STYROLUTION GROUP GMBH

Inventor： Norbert Niessner ,  Tobias Schulz ,  Oliver Carstensen ,  Konrad Knoll ,  Manfred Doering ,  Frank Schoenberger ,  Julien Fage

IPC: C08F265/04 ,  C08L25/12 ,  C08L51/00 ,  C08F265/06 ,  C08F2/22 ,  C08F8/14 ,  C08F220/18 ,  C08L25/14 ,  C08F2/38 ,  C08F212/14 ,  C08F220/28

Abstract: The invention relates to graft copolymers—based on non-cross-linked acrylate soft phases from which styrenic monomers are grafted—with a defined micro-structure, having a high transparency, toughness and weather resistance (UV-stability), a process for their preparation and their use, and also to polymer blends comprising said graft copolymers and styrenic polymers, and shaped articles produced therefrom and their use.

公开(公告)号：US10802401B2

公开(公告)日：2020-10-13

申请号：US15759429

申请日：2016-09-26

Applicant: TORAY INDUSTRIES, INC.

Inventor： Yugo Tanigaki ,  Satoshi Kamemoto ,  Kazuto Miyoshi

IPC: G03F7/027 ,  G03F7/028 ,  G03F7/037 ,  G03F7/033 ,  H01L51/56 ,  H01L51/54 ,  C08F265/06 ,  C08F283/12 ,  C08F283/04 ,  C08G73/22 ,  C08G73/10 ,  C09D179/08 ,  C08F222/10 ,  G03F7/038 ,  C08F285/00 ,  G03F7/032 ,  C08L51/00 ,  G03F7/004 ,  C09K11/06 ,  G03F7/105 ,  H01L51/50 ,  G03F7/075 ,  G03F7/20 ,  H01L51/52 ,  H01L27/32

Abstract: To provide an alkaline developable negative-type photosensitive resin composition from which a cured film that has a high-resolution and low-taper pattern shape and that are excellent in heat resistance and light blocking property can be obtained. A negative-type photosensitive resin composition is characterized by containing an (A1) first resin, a (A2) second resin, a (C) photopolymerization initiator, and a (D) coloring agent, wherein the (A1) first resin is an (A1-1) polyimide and/or an (A1-2) polybenzo-oxazole, and wherein the (A2) second resin is one or more species selected from a (A2-1) polyimide precursor, a (A2-2) polybenzo-oxazole precursor, a (A2-3) polysiloxane, a (A2-4) cardo based resin, and an (A2-5) acrylic resin, and wherein a content ratio of the (A1) first resin in a total of 100 mass % of the (A1) first resin and the (A2) second resin is within the range of 25 to 90 mass %.

公开(公告)号：US10745505B2

公开(公告)日：2020-08-18

申请号：US16138245

申请日：2018-09-21

Applicant: KANEKA CORPORATION

Inventor： Mitsuru Nakamura ,  Fuminobu Kitayama

IPC: C08F265/06 ,  C08F285/00 ,  C08L33/12 ,  C08J5/18

Abstract: A graft copolymer includes: an inner layer made of a hard polymer (I) obtained by polymerizing a monomer mixture including 40 to 100 wt % of a methacrylate ester 0 to 15 wt % of an aromatic vinyl monomer, and 0 to 45 wt % of another copolymerizable monomer and 0.01 to 10 parts by weight of a polyfunctional monomer; an intermediate layer made of a soft polymer (II) obtained by polymerizing a monomer mixture including 60 to 100 wt % of an acrylate ester and 0 to 40 wt % of another copolymerizable monomer, 0.01 to 5 parts by weight of allyl (meth)acrylate, and a di(meth)acrylic compound; and an outer layer made of a hard polymer (III) obtained by polymerizing a monomer mixture including 40 to 100 wt % of a methacrylate ester and 60 to 0 wt % of another copolymerizable monomer and 0 to 10 parts by weight of a polyfunctional monomer.

公开(公告)号：US10745504B2

公开(公告)日：2020-08-18

申请号：US15322660

申请日：2015-07-08

Applicant: LUCITE INTERNATIONAL SPECIALITY POLYMERS AND RESINS LIMITED

Inventor： Michael Stephen Chisholm

IPC: C08F265/06 ,  C08L33/06 ,  C09J4/06 ,  B29C39/00 ,  B29C39/02 ,  B29C39/44 ,  G01N1/36 ,  B29K33/04 ,  B29K105/16

Abstract: A multi-part acrylic cold curing composition for metallography moulds to produce a metallography mount is described. The composition has a storage stable solid part and a storage stable liquid part. The parts are operable to form a mixture which polymerises to a solid mass upon mixing of the parts together. The solid part comprises polymer powder and initiator and the liquid part comprises acrylic monomer and optionally activator or accelerator. The initiator is present in an amount effective to polymerize the acrylic monomer component upon being mixed with the liquid part. The composition comprises a cyclic ester side group containing monofunctional acrylic monomer. The composition liquid part may contain a mixture of monofunctional monomer(s) and polyfunctional monomer(s), wherein the polyfunctional monomers comprise between 12 and 22% w/w of the total monomers in the uncured composition. Metallography mounts and processes for producing the mounts are also described.

公开(公告)号：US10737466B2

公开(公告)日：2020-08-11

申请号：US15758569

申请日：2016-09-06

Applicant: Mitsubishi Chemical Corporation

Inventor： Megumi Higashikawa ,  Yuuji Kawaguchi ,  Kazuya Ooaira ,  Junichi Abe

IPC: B32B27/08 ,  B32B15/082 ,  B32B25/14 ,  B32B27/30 ,  C08F265/06 ,  B32B25/08 ,  B32B7/12

Abstract: As a laminated film having high transparency, stress whitening resistance, and chemical resistance, a laminated film comprising a layer comprising a fluorine-based resin (X) and a layer comprising an acrylic resin composition (Y), and satisfying the following conditions (1) and (2) is provided. (1) When a test piece is stretched from a chuck-to-chuck distance of 25 mm to 35 mm at a temperature of 0° C. and a tensile rate of 500 mm/min according to ISO 527-3, a difference (ΔW) between a degree of whiteness of the test piece before and that after stretching is 5 or less. (2) The acrylic resin composition (Y) comprises a rubber-containing polymer (B) comprising 30% by mass or more of an elastic polymer (B1).

公开(公告)号：US10723873B2

公开(公告)日：2020-07-28

申请号：US16382328

申请日：2019-04-12

Applicant: Arkema France

Inventor： Raber Inoubli ,  Philippe Hajji

IPC: C08L63/00 ,  C08L51/04 ,  C08F265/06 ,  C08F285/00

Abstract: The present invention relates to a multistage polymer in form of polymeric particles, its composition and its process of preparation. In particular the present invention it relates to a multistage polymer in form of polymeric particles made by a multistage process while the last stage comprises a polymer with a low molecular weight. More particularly the present invention relates to polymer composition in form of polymeric particles made by a multistage process comprising at least three stages while the last stage comprises a polymer with a low molecular weight, its method of preparation, its use as impact modifier in polymer compositions for composites comprising thermosetting resins or thermoplastic polymers and compositions and articles comprising it.