公开(公告)号：US20230347631A1

公开(公告)日：2023-11-02

申请号：US18025777

申请日：2021-09-09

Applicant: KURARAY CO., LTD.

Inventor： Takeshi Sakano ,  Kentaro Yoshida ,  Satoshi Ishiuchi ,  Tatsuya Oshita

IPC: B32B27/08 ,  B32B27/30 ,  B32B27/32 ,  C08L23/20

CPC classification number: B32B27/08 ,  B32B27/306 ,  B32B27/32 ,  C08L23/20 ,  B32B2255/10 ,  B32B2255/20 ,  B32B2305/026 ,  B32B2307/7376 ,  B32B2307/74 ,  B32B2553/00

Abstract: The present disclosure provides a multilayer structure in which a layer (A) made of a polyolefin resin composition (a), an oxygen barrier layer (B) and a sealant layer (C) are laminated in this sequence.

公开(公告)号：US20230294380A1

公开(公告)日：2023-09-21

申请号：US18012906

申请日：2021-06-24

Applicant: KURARAY CO., LTD.

Inventor： Masahiro Kitamura ,  Kentaro Yoshida ,  Wout Luyten

IPC: B32B7/12 ,  B32B27/30 ,  B32B27/32 ,  B32B27/08 ,  B32B7/02 ,  B65D65/40

CPC classification number: B32B7/12 ,  B32B27/306 ,  B32B27/32 ,  B32B27/08 ,  B32B7/02 ,  B65D65/40 ,  B32B2255/10 ,  B32B2255/20 ,  B32B2250/24 ,  B32B2307/7376 ,  B32B2307/516 ,  B32B2307/518 ,  B32B2307/7244 ,  B32B2307/414 ,  B32B2553/00 ,  B65D2565/385 ,  B65D2565/387

Abstract: There is provided a multilayer film having a structure in which a layer (X) is an outermost layer and at least the layer (X), a layer (Y), and a layer (Z) are adjacently laminated in sequence, wherein the layer (X) is made of a resin composition (A) comprising a vinyl alcohol polymer (a) having a melting point of lower than 150° C. as a main component; the layer (Y) comprises an adhesive resin (B) having a melting point of lower than 150° C. as a main component; the layer (Z) comprises a polyolefin resin (C) having a melting point of lower than 150° C. as a main component; and the resin composition (A) comprises alkali metal ions (b) in 25 to 1500 ppm. Such a multilayer film is suitably used as a gas barrier film because it has excellent appearance and interlayer adhesiveness even while having a vinyl alcohol polymer as an outermost layer.

公开(公告)号：US20220143959A1

公开(公告)日：2022-05-12

申请号：US17438406

申请日：2020-03-09

Applicant: KURARAY CO., LTD.

Inventor： Kentaro Yoshida ,  Makoto Suzuki

IPC: B32B27/08 ,  B32B27/32 ,  B32B27/30 ,  B65D65/40 ,  B29B17/04 ,  B29C48/00 ,  B29C48/08 ,  B29C48/21 ,  B29C55/12 ,  B29C55/00 ,  C08J5/18 ,  C08J11/04

Abstract: The present invention relates to a multilayer structure at least an outer layer and an inner layer which contain a polypropylene resin as a main component, a barrier resin layer containing an ethylene-vinyl alcohol copolymer as a main component, and a metal deposited layer containing aluminum as a main component; a packaging material for a retort therewith; a method for recovering the multilayer structure; and a recovered composition comprising a recovered material of the multilayer structure. There is provided a multilayer structure exhibiting excellent recyclability and excellent appearance, gas barrier ability and shading performance both before and after retorting treatment, and a packaging material for a retort therewith.

公开(公告)号：US10995189B2

公开(公告)日：2021-05-04

申请号：US16332586

申请日：2017-09-13

Applicant: KURARAY CO., LTD.

Inventor： Edgard Chow ,  Kentaro Yoshida ,  Tatsuya Hasegawa

IPC: C08K5/13 ,  C08K5/3435 ,  C08J5/18 ,  C08J3/22 ,  A01G13/02 ,  A01F25/13 ,  A01F25/14 ,  F16L9/12 ,  A01G9/14 ,  A01M13/00 ,  E02D17/20 ,  E02D31/00

Abstract: A resin composition contains an ethylene-vinyl alcohol copolymer (A) in which an ethylene unit content is from 10 to 60 mol %, a hindered amine-based compound (B) having a 2,2,6,6-tetraalkylpiperidine ring structure and having an alkoxy group bonded to a nitrogen atom in the structure, and a hindered phenol-based compound (C) having an ester bond or an amide bond. The resin composition contains 0.1 to 5 parts by mass of the hindered amine-based compound (B) and 0.2 to 5 parts by mass of the hindered phenol-based compound (C) with respect to 100 parts by mass of the ethylene-vinyl alcohol copolymer (A), and a mass ratio (C)/(B) is from 0.2 to 3.6.

公开(公告)号：US10290756B2

公开(公告)日：2019-05-14

申请号：US14407582

申请日：2013-06-12

Applicant: KURARAY CO., LTD.

Inventor： Masakazu Nakaya ,  Noboru Higashida ,  Kentaro Yoshida ,  Ryoichi Sasaki ,  Manabu Shibata ,  Tatsuya Oshita

IPC: B32B7/12 ,  H01L31/048 ,  H01L31/049 ,  H01L31/18 ,  H01L33/56 ,  H01L51/52 ,  H01L51/56 ,  B32B27/08 ,  B32B27/30

Abstract: Provided are a novel multilayer structure that can be used to protect a device and a device using the multilayer structure. The disclosed multilayer structure is a multilayer structure including a substrate and a barrier layer stacked on the substrate. The 3% strain tension of the substrate in at least one direction is at least 2000 N/m. The barrier layer contains a reaction product (R). The reaction product (R) is a reaction product formed by a reaction at least between a metal oxide (A) and a phosphorus compound (B). In an infrared absorption spectrum of the barrier layer in a range of 800 to 1400 cm−1, a wavenumber (n1) at which maximum infrared absorption occurs is in a range of 1080 to 1130 cm−1. A metal atom constituting the metal oxide (A) is essentially an aluminum atom.

公开(公告)号：US09914837B2

公开(公告)日：2018-03-13

申请号：US14349594

申请日：2012-10-05

Applicant: KURARAY CO., LTD.

Inventor： Ryoichi Sasaki ,  Kentaro Yoshida ,  Mamoru Omoda ,  Suehiko Nagano ,  Tatsuya Oshita

IPC: C09D5/00 ,  C08J7/06 ,  C08J7/04 ,  C01B25/36 ,  C04B28/34 ,  C09D1/00 ,  B32B7/12 ,  B32B27/32 ,  B32B27/36 ,  C09D5/02 ,  C09D7/12 ,  B32B9/00 ,  B32B9/04 ,  C04B111/00 ,  C08K3/32

CPC classification number: C09D5/00 ,  B32B7/12 ,  B32B9/00 ,  B32B9/04 ,  B32B27/32 ,  B32B27/36 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2439/70 ,  C01B25/36 ,  C04B28/34 ,  C04B28/342 ,  C04B2111/00482 ,  C04B2111/00525 ,  C04B2111/00534 ,  C08J7/045 ,  C08J7/047 ,  C08J7/06 ,  C08J2367/02 ,  C08J2377/02 ,  C08J2429/04 ,  C08J2443/02 ,  C08K2003/327 ,  C09D1/00 ,  C09D5/002 ,  C09D5/024 ,  C09D7/61 ,  C09D7/66 ,  Y10T428/1307 ,  Y10T428/1334 ,  Y10T428/1393 ,  Y10T428/25 ,  C04B14/303

Abstract: The method disclosed includes: a step (I) of preparing a dispersion liquid (S) including an aluminum compound (A); a step (II) of mixing the dispersion liquid (S) and a predetermined phosphorus compound (B) so as to prepare a coating liquid (U); a step (III) of applying the coating liquid (U) onto the base (X) so as to form a precursor layer of the layer (Y); and a step (IV) of subjecting the precursor layer to heat treatment at a temperature of 110° C. or more so as to form the layer (Y). The aluminum compound (A) can be formed by adding an acid to a solution including an aluminate. The number of moles (NM) of aluminum atoms derived from the aluminum compound (A) and the number of moles (NP) of phosphorus atoms derived from the phosphorus compound (B) satisfy 0.8≦(NM)/(NP)≦4.5.

公开(公告)号：US11813823B2

公开(公告)日：2023-11-14

申请号：US17438406

申请日：2020-03-09

Applicant: KURARAY CO., LTD.

Inventor： Kentaro Yoshida ,  Makoto Suzuki

IPC: B32B27/08 ,  B29C48/00 ,  B29C48/08 ,  B29C48/21 ,  B29B17/04 ,  B29C55/00 ,  B29C55/12 ,  B32B27/30 ,  B32B27/32 ,  B65D65/40 ,  C08J5/18 ,  C08J11/04 ,  B29K23/00 ,  B29K105/00 ,  B29L7/00 ,  B29L9/00

CPC classification number: B32B27/08 ,  B29B17/04 ,  B29C48/0018 ,  B29C48/022 ,  B29C48/08 ,  B29C48/21 ,  B29C55/005 ,  B29C55/12 ,  B32B27/306 ,  B32B27/32 ,  B65D65/40 ,  C08J5/18 ,  C08J11/04 ,  B29K2023/086 ,  B29K2023/12 ,  B29K2105/0097 ,  B29L2007/008 ,  B29L2009/00 ,  B32B2255/10 ,  B32B2255/205 ,  B32B2307/42 ,  B32B2307/518 ,  B32B2307/7244 ,  B32B2307/732 ,  B32B2553/00 ,  C08J2323/10 ,  C08J2329/04 ,  C08J2377/00

Abstract: The present invention relates to a multilayer structure at least an outer layer and an inner layer which contain a polypropylene resin as a main component, a barrier resin layer containing an ethylene-vinyl alcohol copolymer as a main component, and a metal deposited layer containing aluminum as a main component; a packaging material for a retort therewith; a method for recovering the multilayer structure; and a recovered composition comprising a recovered material of the multilayer structure. There is provided a multilayer structure exhibiting excellent recyclability and excellent appearance, gas barrier ability and shading performance both before and after retorting treatment, and a packaging material for a retort therewith.

公开(公告)号：US10814350B2

公开(公告)日：2020-10-27

申请号：US14967823

申请日：2015-12-14

Applicant: KURARAY CO., LTD.

Inventor： Kentaro Yoshida ,  Ryoichi Sasaki ,  Mamoru Omoda ,  Wataru Hirose ,  Manabu Shibata ,  Tatsuya Oshita

IPC: C23C18/12 ,  B05D3/00 ,  C09D123/08 ,  B32B7/12 ,  B32B27/08 ,  B32B27/10 ,  B32B27/32 ,  B32B27/34 ,  B32B27/36 ,  C09D1/00 ,  C09D133/02 ,  B32B21/08 ,  B32B27/30 ,  B32B15/08 ,  B32B21/04 ,  B32B27/28 ,  B32B21/06 ,  B32B15/10 ,  B32B27/20 ,  B32B29/00 ,  B32B15/085 ,  B32B29/02 ,  B32B15/09 ,  B32B15/12 ,  B32B15/082 ,  B32B15/14 ,  B32B5/26 ,  B32B21/10 ,  B32B27/12 ,  B32B15/088 ,  B32B29/06 ,  C08J7/04 ,  C09D123/02 ,  C08J7/06

Abstract: The composite structural material of the present invention includes a base (X) and a layer (Y) stacked on the base (X). The layer (Y) includes a reaction product (R) of a metal oxide (A) and a phosphorus compound (B). In the infrared absorption spectrum of the layer (Y) in the range of 800 to 1400 cm−1, the wave number (n1) at which the infrared absorption reaches maximum is in the range of 1080 to 1130 cm−1.

公开(公告)号：US10265935B2

公开(公告)日：2019-04-23

申请号：US14765957

申请日：2014-02-07

Applicant: KURARAY CO., LTD.

Inventor： Ryoichi Sasaki ,  Kentaro Yoshida ,  Mamoru Omoda ,  Masakazu Nakaya ,  Hiroyuki Ogi

IPC: B32B27/34 ,  B32B27/32 ,  B32B15/08 ,  B32B15/20 ,  B32B27/28 ,  B32B27/06 ,  B32B27/10 ,  B32B27/08 ,  B32B27/36 ,  C09D143/02 ,  B32B27/30 ,  C08F230/02

Abstract: A product provided includes a packaging material, and the packaging material includes a multilayer structure. The multilayer structure includes at least one base (X), at least one layer (Y), and at least one layer (Z). The layer (Y) contains an aluminum atom. The layer (Z) contains a polymer (E) containing a monomer unit having a phosphorus atom. The multilayer structure includes at least one pair of the layer (Y) and the layer (Z) that are contiguously stacked. This product is excellent in gas barrier properties, and adapted to maintain the gas barrier properties at a high level even when subjected to physical stresses such as deformation and impact.

公开(公告)号：US09403998B2

公开(公告)日：2016-08-02

申请号：US14349809

申请日：2012-10-05

Applicant: KURARAY CO., LTD.

Inventor： Kentaro Yoshida ,  Ryoichi Sasaki ,  Mamoru Omoda ,  Wataru Hirose ,  Manabu Shibata ,  Tatsuya Oshita

IPC: C09D7/12 ,  C09D185/02 ,  C09D1/00 ,  C08J7/06

CPC classification number: C09D7/63 ,  C08J7/045 ,  C08J7/06 ,  C08J2367/02 ,  C08J2377/00 ,  C09D1/00 ,  C09D185/02 ,  Y10T428/31739 ,  Y10T428/31746 ,  Y10T428/31786 ,  Y10T428/31797

Abstract: A composite structure disclosed includes a base (X) and a layer (Y) stacked on the base (X). The layer (Y) includes a reaction product (R). The reaction product (R) is a reaction product formed by a reaction at least between a metal oxide (A) and a phosphorus compound (B). A peak for a binding energy of an oxygen-atom 1s orbital observed by X-ray photoelectron spectroscopy of the layer (Y) is located at 532.0 eV or higher, and the peak has a half width of less than 2.0 eV.

Abstract translation: 所公开的复合结构包括底座（X）和层叠在基座（X）上的层（Y）。 层（Y）包括反应产物（R）。 反应产物（R）是通过至少在金属氧化物（A）和磷化合物（B）之间的反应形成的反应产物。 通过层（Y）的X射线光电子能谱观察到的氧原子1s轨道的结合能的峰位于532.0eV以上，峰的半宽度小于2.0eV。