公开(公告)号：US20190071530A1

公开(公告)日：2019-03-07

申请号：US16083704

申请日：2017-03-24

Applicant: ZEON CORPORATION

Inventor： Naohiro IGARI ,  Shinji KATO

IPC: C08F236/12 ,  B29C41/00 ,  B29C41/14 ,  B29C41/20

Abstract: A copolymer latex of a copolymer comprising 50 to 88 wt % of a conjugated diene monomer unit, 10 to 40 wt % of an ethylenically unsaturated nitrile monomer unit, and 2 to 10 wt % of an ethylenically unsaturated acid monomer unit, the copolymer latex having an insoluble content in methyl ethyl ketone of 70 wt % or less and a swelling degree in methyl ethyl ketone of 40 times or more when the copolymer is formed into a dry film.

公开(公告)号：US20180186128A1

公开(公告)日：2018-07-05

申请号：US15740177

申请日：2016-07-01

Applicant: ZEON CORPORATION

Inventor： Shinji KATO ,  Naohiro IGARI ,  Tetsuya AKABANE ,  Tomoya TANIYAMA

IPC: B32B25/16 ,  B32B25/10 ,  B32B5/14 ,  C08F236/12 ,  A41D19/00

CPC classification number: B32B25/16 ,  A41D19/0055 ,  A41D19/0096 ,  A41D2500/50 ,  B32B5/145 ,  B32B25/10 ,  B32B2307/50 ,  B32B2437/02 ,  C08F236/12 ,  C08F2800/20 ,  D06M15/227 ,  D06M15/263 ,  D06M15/31 ,  D06M15/693

Abstract: A rubber formed article includes a laminate in which a rubber layer of nitrile rubber is laminated on a fiber base material. The nitrile rubber contains a copolymer having 52 to 78% by weight of conjugated diene monomer units, 20 to 40% by weight of α,β-ethylenically unsaturated nitrile monomer units, and 2 to 10% by weight of ethylenically unsaturated monocarboxylic acid monomer units. Stress at 50% elongation of the laminate is 20 N or smaller. A ratio of an area where rubber is visible when the laminate is viewed from the back side to an area of the laminate is 15% or less. The thickness of the rubber layer is 0.30 mm or less.

公开(公告)号：US20170342242A1

公开(公告)日：2017-11-30

申请号：US15533146

申请日：2015-11-30

Applicant: ZEON CORPORATION

Inventor： Shinji KATO

IPC: C08L9/04 ,  C08K3/06 ,  C08F236/12 ,  C08L13/02 ,  B29C41/14

CPC classification number: C08L9/04 ,  B29C41/14 ,  C08F236/12 ,  C08J2309/02 ,  C08J2309/04 ,  C08J2309/10 ,  C08K3/06 ,  C08L13/02

Abstract: A latex for dip forming and a sulfur-based crosslinking agent, and has a pH of 9.5-11, the latex containing a copolymer having 40-80% by weight of conjugated diene monomer units (A) that contain a butadiene unit and an isoprene unit, 10-45% by weight of ethylenically unsaturated nitrile monomer units (B), and 2-15% by weight of ethylenically unsaturated acid monomer units (C), the ratio between the butadiene unit content and the isoprene unit content being 40:60 to 95:5 expressed in terms of weight.

公开(公告)号：US20210339434A1

公开(公告)日：2021-11-04

申请号：US17271784

申请日：2019-08-19

Applicant: ZEON CORPORATION

Inventor： Kohei TOMARI ,  Shinji KATO ,  Misa HAYASHI

IPC: B29C41/14 ,  A61M25/10 ,  C08K5/38 ,  C08C19/36

Abstract: This application relates to a production method for a medical balloon that can suppress the occurrence of the symptom of delayed-type allergy (Type IV) in addition to immediate-type allergy (Type I). The production method includes molding a composition containing a carboxy-modified conjugated diene polymer, a vulcanizing agent, and a xanthogen compound into the shape of a balloon. The molding of the composition into the shape of a balloon includes dipping a balloon-shaped mold in the composition in the form of latex.

公开(公告)号：US20190177517A1

公开(公告)日：2019-06-13

申请号：US16078554

申请日：2017-02-24

Applicant: ZEON CORPORATION

Inventor： Naohiro IGARI ,  Misa YAMAMOTO ,  Masaru KITAGAWA ,  Shinji KATO

IPC: C08L13/02 ,  C08K3/10 ,  C08K5/053 ,  A41D19/04

Abstract: A latex composition has a latex of a carboxyl group-containing conjugated diene rubber and a metal compound including a trivalent or higher metal, wherein a content of the metal compound is 0.1 to 1.5 parts by weight, based on 100 parts by weight of the carboxyl group-containing conjugated diene rubber.

公开(公告)号：US20180303173A1

公开(公告)日：2018-10-25

申请号：US15738040

申请日：2016-06-30

Applicant: ZEON CORPORATION

Inventor： Naohiro IGARI ,  Shinji KATO ,  Tetsuya AKABANE ,  Tomoya TANIYAMA

IPC: A41D19/00 ,  B29C41/14 ,  B29C41/20

CPC classification number: A41D19/0065 ,  A41D19/0006 ,  A41D19/0055 ,  A41D2500/54 ,  A41D2600/20 ,  B29C41/14 ,  B29C41/20 ,  B29K2105/0809 ,  B29L2031/4864

Abstract: A dip-formed article includes a laminate in which a rubber layer is laminated on a fiber base material. The thickness of the rubber layer is 0.2 to 0.8 mm, the rubber constituting the rubber layer penetrates into the fiber base material, the maximum depth to which the rubber has penetrated into the fiber base material is 0.1 to 0.3 mm, and the maximum stress at 50% elongation of the laminate is 20 N or smaller.

公开(公告)号：US20170342243A1

公开(公告)日：2017-11-30

申请号：US15533303

申请日：2015-11-30

Applicant: ZEON CORPORATION

Inventor： Shinji KATO

IPC: C08L9/10 ,  B29C41/14 ,  C08J5/02 ,  B29C41/00 ,  A41D19/00 ,  B29K33/18 ,  B29K7/00 ,  B29K105/00 ,  B29L31/48

CPC classification number: C08L9/10 ,  A41D19/0096 ,  A41D19/04 ,  B29C41/003 ,  B29C41/14 ,  B29K2007/00 ,  B29K2033/18 ,  B29K2105/0002 ,  B29L2031/4864 ,  C08J5/02 ,  C08J2309/02 ,  C08J2309/04 ,  C08J2309/10

Abstract: Disclosed is a dip-formed article obtained by dip-molding a latex composition for dip-forming, which contains a crosslinking agent and a latex for dip-forming containing a copolymer composed of 40-80% by weight of conjugated diene monomer units (A) containing an isoprene unit, 20-45% by weight of ethylenically unsaturated nitrile monomer units (B), and 2-15% by weight of ethylenically unsaturated acid monomer units (C), and having a weight ratio of butadiene unit content to isoprene unit content that falls within the range of 60:40 to 100:0. Tear strength is at least 50 N/mm, tensile strength is at least 25 MPa, and oil swelling rate does not exceed 5%.

公开(公告)号：US20200031100A1

公开(公告)日：2020-01-30

申请号：US16337104

申请日：2017-09-19

Applicant: ZEON CORPORATION

Inventor： Kentaro HAYASAKA ,  Tomoya TANIYAMA ,  Shinji KATO

IPC: B32B25/10 ,  C08L9/04 ,  C08K3/24 ,  C08K5/09 ,  A41D19/00

Abstract: A method of producing a laminated body, the method including a coagulant solution deposition step of depositing a coagulant solution on a fiber substrate, and a coagulation step of forming a polymer layer on the fiber substrate by bringing a polymer latex into contact with the fiber substrate having the coagulant solution deposited thereon to cause a polymer to coagulate. As the coagulant solution, a solution obtained by dissolving or dispersing 0.2 to 7.0% by weight of a metal salt as a coagulant and 0.1 to 7.0% by weight of an organic acid in a solvent is used. In the method of producing a laminated body, the metal salt is a polyvalent metal salt. In the method of producing a laminated body, the organic acid is an organic acid having at least one group selected from a carboxyl group, a sulfo group, a hydroxy group, and a thiol group.

公开(公告)号：US20170058086A1

公开(公告)日：2017-03-02

申请号：US15119873

申请日：2015-03-24

Applicant: ZEON CORPORATION

Inventor： Shinji KATO

IPC: C08J5/02 ,  C08J7/06 ,  B05D1/18

Abstract: A dip-formed article obtained by dip forming a dip-forming composition containing a latex of a carboxyl group-containing nitrile rubber, wherein at least one surface is surface treated, a thickness is 0.02 to 0.2 mm, a coefficient of dynamic friction of the surface treated surface is 0.5 or less, and a tensile strength after surface treatment is 30 MPa or more is provided.

Abstract translation: 通过浸渍形成含有含羧基的丁腈橡胶的胶乳的浸渍形成用组合物，其中至少一个表面被表面处理，其厚度为0.02〜0.2mm，摩擦系数为 表面处理表面为0.5以下，表面处理后的拉伸强度为30MPa以上。