公开(公告)号：US20230331982A1

公开(公告)日：2023-10-19

申请号：US18340252

申请日：2023-06-23

Applicant: KANEKA CORPORATION

Inventor： Nobuyoshi Maizuru ,  Toshihiko Okamoto

IPC: C08L63/00 ,  C08F279/02

CPC classification number: C08L63/00 ,  C08F279/02

Abstract: A resin composition contains polymer particles (A) and a matrix resin (B) such that the polymer particles (A) have a graft part having a glass transition temperature of −25° C. to 18° C. The resin composition has excellent handleability.

公开(公告)号：US20160326289A1

公开(公告)日：2016-11-10

申请号：US15107958

申请日：2014-12-24

Applicant: KANEKA CORPORATION

Inventor： Fuminobu Kitayama ,  Nobuyoshi Maizuru ,  Keisuke Hatano

IPC: C08F220/18 ,  C08K3/00 ,  G02B1/04 ,  C08J5/18

CPC classification number: C08F220/18 ,  C08F220/14 ,  C08F2220/185 ,  C08J5/18 ,  C08J2333/10 ,  C08J2333/12 ,  C08K3/013 ,  G02B1/04 ,  C08L33/08 ,  C08L33/10

Abstract: An optical thermoplastic resin has a rate of reduction in melt viscosity of less than 20%, an orientation birefringence of −1.7×10−4 to 1.7×10−4, a photoelastic constant of −3.7×10−12 to 3.7×10−12 Pa−1, and, when formed into a 2 mm-thick formed body, has a haze of 1% or less.

Abstract translation: 光学热塑性树脂的熔融粘度降低率小于20％，取向双折射率为-1.7×10 -4〜1.7×10 -4，光弹性常数为-3.7×10-12〜3.7×10- 12Pa-1，当形成2mm厚的成形体时，雾度为1％以下。

公开(公告)号：US20240199773A1

公开(公告)日：2024-06-20

申请号：US18591887

申请日：2024-02-29

Applicant: KANEKA CORPORATION

Inventor： Nobuyoshi Maizuru

IPC: C08F120/14 ,  C08K5/10

CPC classification number: C08F120/14 ,  C08K5/10

Abstract: A composition having excellent storage stability is provided. The composition contains a specific amount of fine polymer particles (A), a specific amount of a low molecular weight compound (B), and a radical scavenger (C) of hindered phenol base. The fine polymer particles (A) include an elastic body and a graft part. The elastic body contains at least one selected from diene-based rubbers, (meth)acrylate-based rubbers, and organosiloxane-based rubbers.

公开(公告)号：US10035888B2

公开(公告)日：2018-07-31

申请号：US14406086

申请日：2013-06-26

Applicant: KANEKA CORPORATION

Inventor： Fuminobu Kitayama ,  Nobuyoshi Maizuru ,  Keisuke Hatano

IPC: C08J5/18 ,  G02B1/04 ,  C08L33/12 ,  C08L33/06 ,  C08L33/08 ,  C08L33/24 ,  C08F8/00 ,  C08F8/32 ,  F21V8/00

CPC classification number: C08J5/18 ,  C08F8/00 ,  C08F8/32 ,  C08F2810/20 ,  C08J2333/12 ,  C08J2351/00 ,  C08J2433/12 ,  C08J2451/00 ,  C08L33/06 ,  C08L33/08 ,  C08L33/12 ,  C08L33/24 ,  G02B1/04 ,  G02B1/041 ,  G02B1/045 ,  G02B6/0011 ,  G02B6/003 ,  Y10T428/25 ,  Y10T428/254 ,  C08F220/10 ,  C08L33/064 ,  C08L101/00 ,  C08L51/08 ,  C08L51/06

Abstract: Disclosed herein is a non-birefringent resin material that is very small in both orientation birefringence and photoelastic birefringence, has high transparency, and is capable of providing a molded article having few foreign matter defects and a film made of such a material. The non-birefringent resin material contains a resin (A) and a polymer (B) and has an orientation birefringence of −1.7×10−4 to 1.7×10−4 and a photoelastic constant of −4×10−12 to 4×10−12 Pa−1.

公开(公告)号：US20170362368A1

公开(公告)日：2017-12-21

申请号：US15694154

申请日：2017-09-01

Applicant: Kaneka Corporation

Inventor： Fuminobu Kitayama ,  Nobuyoshi Maizuru ,  Mitsuru Nakamura ,  Haruki Koyama

IPC: C08F265/06 ,  C08L33/08

CPC classification number: C08F265/06 ,  C08F2/38 ,  C08F285/00 ,  C08L33/08 ,  C08L51/003 ,  C08L2201/10 ,  C08L2203/16 ,  C09D151/003 ,  C08F220/14 ,  C08F2220/1825 ,  C08F212/08 ,  C08F220/54 ,  C08F222/40 ,  C09D133/12 ,  C08L51/00 ,  C08L33/12

Abstract: A resin composition includes an acrylic resin and a graft copolymer having a gel content of 65% to 84%, wherein the graft copolymer is a multistage-polymerized graft copolymer obtained by a multistage polymerization including the polymerization stages (I) to (III). In the polymerization stage (I), a first monomer mixture and a polyfunctional monomer are polymerized in a presence of a primary alkyl mercaptan-based chain transfer agent and/or a secondary alkyl mercaptan-based chain transfer agent to obtain a first hard polymer. In the polymerization stage (II), a second monomer mixture and a polyfunctional monomer are poloymerized to obtain a soft polymer. In the polymerization stage (III), a third monomer mixture and a polyfunctional monomer are polymerized to obtain a second hard polymer.

公开(公告)号：US20220213311A1

公开(公告)日：2022-07-07

申请号：US17698248

申请日：2022-03-18

Applicant: KANEKA CORPORATION

Inventor： Nobuyoshi Maizuru ,  Kenji Teramoto

IPC: C08L51/04 ,  C08J3/12 ,  C08L63/00

Abstract: A powdery and/or granular material which achieves excellent dispersibility of fine polymer particles in a matrix resin is provided. The powdery and/or granular material contains specific fine polymer particles (A) and a specific resin (B), and has pores with an average pore diameter of 0.03 μm to 1.00 μm, where a total volume of the pores is not less than 0.0600 mL/g.

公开(公告)号：US20220010124A1

公开(公告)日：2022-01-13

申请号：US17486036

申请日：2021-09-27

Applicant: KANEKA CORPORATION

Inventor： Nobuyoshi Maizuru

IPC: C08L51/04 ,  C08F279/02 ,  C08L33/12 ,  C08L33/08 ,  C09D5/16 ,  C09D7/40 ,  C09D183/04

Abstract: A powdery and/or granular material for a thermosetting resin is provided. The powdery and/or granular material contains fine polymer particles (A) that contain a rubber-containing graft copolymer that includes an elastic body and a graft part grafted to the elastic body. The fine polymer particles (A) have a volume-average particle size of not less than 90 nm; and the polymer of the graft part has a weight-average molecular weight of not more than 200000.

公开(公告)号：US20150147550A1

公开(公告)日：2015-05-28

申请号：US14406086

申请日：2013-06-26

Applicant: KANEKA CORPORATION

Inventor： Fuminobu Kitayama ,  Nobuyoshi Maizuru ,  Keisuke Hatano

IPC: C08J5/18

CPC classification number: C08J5/18 ,  C08F8/00 ,  C08F8/32 ,  C08F2810/20 ,  C08J2333/12 ,  C08J2351/00 ,  C08J2433/12 ,  C08J2451/00 ,  C08L33/06 ,  C08L33/08 ,  C08L33/12 ,  C08L33/24 ,  G02B1/04 ,  G02B1/041 ,  G02B1/045 ,  G02B6/0011 ,  G02B6/003 ,  Y10T428/25 ,  Y10T428/254 ,  C08F220/10 ,  C08L33/064 ,  C08L101/00 ,  C08L51/08 ,  C08L51/06

Abstract: Disclosed herein is a non-birefringent resin material that is very small in both orientation birefringence and photoelastic birefringence, has high transparency, and is capable of providing a molded article having few foreign matter defects and a film made of such a material. The non-birefringent resin material contains a resin (A) and a polymer (B) and has an orientation birefringence of −1.7×10−4 to 1.7×10−4 and a photoelastic constant of −4×10−12 to 4×10−12 Pa−1.

Abstract translation: 本文公开了非取向双折射树脂材料，其在取向双折射和光弹性双折射方面非常小，具有高透明度，并且能够提供少量异物缺陷的模制品和由这种材料制成的膜。 非双折射树脂材料含有树脂（A）和聚合物（B），其取向双折射为-1.7×10-4〜1.7×10-4，光弹性常数为-4×10-12〜4× 10-12 Pa-1。

公开(公告)号：US20250019536A1

公开(公告)日：2025-01-16

申请号：US18898099

申请日：2024-09-26

Applicant: KANEKA CORPORATION

Inventor： Nobuyoshi Maizuru

IPC: C08L63/00 ,  C08K3/36 ,  C08K7/16

Abstract: A stress reducing agent that is excellent in dispersibility in a matrix resin and enables provision of a cured product having a favorable linear expansion coefficient is provided. The stress reducing agent contains fine polymer particles (A). The particles (A) contain a rubber-containing graft copolymer including an elastic body and a graft part grafted to the elastic body. The elastic body contains an organosiloxane-based rubber. The elastic body is contained in an amount of above 70 wt % and 97 wt % or less, relative to 100 wt % of the particles (A). The graft part contains an epoxy group-containing structural unit. The epoxy group-containing structural unit in the graft part is contained in an amount of 0.5-4.0 wt % with respect to 100 wt % of the rubber-containing graft copolymer. The stress reducing agent is a powdery and/or granular material.

公开(公告)号：US20210317240A1

公开(公告)日：2021-10-14

申请号：US17355787

申请日：2021-06-23

Applicant: KANEKA CORPORATION

Inventor： Nobuyoshi Maizuru

IPC: C08F6/22 ,  C08J3/20 ,  C08F36/06 ,  C08L9/08 ,  C08L9/10

Abstract: The present disclosure relates to a novel resin composition which imposes a reduced environmental load and which is excellent in dispersibility of fine polymer particles. Provided is a resin composition containing water, fine polymer particles (A) having a specific feature, and a thermosetting resin (B) having a specific feature. The resin composition contains the water, the fine polymer particles (A), and the thermosetting resin (B) in respective specific amounts, does not substantially contain an organic solvent, and contains sulfur (S) in an amount falling within a specific range and phosphorus (P) in an amount falling within a specific range.