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公开(公告)号：US20220135778A1
公开(公告)日：2022-05-05
申请号：US17579009
申请日：2022-01-19
发明人： Shinji NAKANISHI , Eri SAWANO
IPC分类号： C08L23/06
摘要： A resin composition that contains: (A) a bio-polyethylene resin; (B) an ethylene-vinyl alcohol copolymer having an ethylene content of 20 to 60 mol %; and (C) at least one component selected from the group consisting of an ethylene-vinyl acetate copolymer, an acid-modified ethylene-α-olefin copolymer, an ethylene-unsaturated monocarboxylic acid copolymer, an ionomer of the ethylene-unsaturated monocarboxylic acid copolymer, an ethylene-vinyl alcohol copolymer having an ethylene content of 70 to 90 mol %, and a hydrotalcite compound. The resin composition employs a bio-polyethylene resin and yet can suppress gumming and provide a formed product having an excellent appearance.
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公开(公告)号：US20210260856A1
公开(公告)日：2021-08-26
申请号：US17315984
申请日：2021-05-10
IPC分类号： B32B27/08 , B32B27/34 , B32B27/30 , B32B27/32 , B32B27/36 , B32B1/00 , B65D75/00 , B65D65/40 , B32B7/12
摘要： The present invention relates to a laminate including a protection layer, a barrier layer, and a heat sealing layer, in which a product of a tensile elastic modulus A in a reference direction, a tensile elastic modulus B in a direction forming an angle of 45° with respect to the reference direction, and a tensile elastic modulus C in a direction forming an angle of 90° with respect to the reference direction is 0.22 (GPa)3 or less, and a value of the tensile elastic modulus B to the tensile elastic modulus A, a value of the tensile elastic modulus C to the tensile elastic modulus A, and a value of the tensile elastic modulus C to the tensile elastic modulus B are each 0.1 to 10.
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公开(公告)号：US20240042657A1
公开(公告)日：2024-02-08
申请号：US18382647
申请日：2023-10-23
发明人： Shinji NAKANISHI , Masaru TAKASHIMA
CPC分类号： B29C39/203 , C08L23/06 , B29C39/003 , C08L2205/025 , C08L2205/035 , B29C2791/003 , B29L2009/00
摘要： A polymer composition containing 100 parts by mass of a polyolefin-based polymer (a), 0.1 to 20 parts by mass of a polar polymer (b), and 0.1 to 25 parts by mass of an acid-modified polyolefin (d), the polar polymer (b) being at least one selected an ethylene-vinyl alcohol-based copolymer (b1) and a polyamide-based polymer (b2), wherein the acid-modified polyolefin (d) is a modified ethylene copolymer, the modified ethylene copolymer being a copolymer of an ethylene monomer and one or more α-olefin monomers having 4 to 8 carbon atoms, and the copolymer being modified with an unsaturated carboxylic acid and/or an anhydride thereof, wherein the modified ethylene copolymer has a melt flow rate (MFR: 190° C., 2.16 kg) of 15 to 39 g/10 minutes.
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公开(公告)号：US20230339219A1
公开(公告)日：2023-10-26
申请号：US18215591
申请日：2023-06-28
IPC分类号： B32B27/08 , B32B1/00 , B32B7/12 , B32B27/30 , B32B27/32 , B32B27/34 , B32B27/36 , B65D65/40 , B65D75/00
CPC分类号： B32B27/08 , B32B1/00 , B32B7/12 , B32B27/306 , B32B27/32 , B32B27/34 , B32B27/36 , B65D65/40 , B65D75/008 , B32B2250/05 , B32B2250/24 , B32B2270/00 , B32B2274/00 , B32B2307/31 , B32B2307/54 , B32B2307/7244 , B32B2439/40
摘要： The present invention relates to a laminate including a protection layer, a barrier layer, and a heat sealing layer, in which a product of a tensile elastic modulus A in a reference direction, a tensile elastic modulus B in a direction forming an angle of 45° with respect to the reference direction, and a tensile elastic modulus C in a direction forming an angle of 90° with respect to the reference direction is 0.22 (GPa)3 or less, and a value of the tensile elastic modulus B to the tensile elastic modulus A, a value of the tensile elastic modulus C to the tensile elastic modulus A, and a value of the tensile elastic modulus C to the tensile elastic modulus B are each 0.1 to 10.
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公开(公告)号：US20220002049A1
公开(公告)日：2022-01-06
申请号：US17480585
申请日：2021-09-21
发明人： Shinji NAKANISHI
摘要： The present invention relates to a multilayer structure used in a treatment under a high pressure of 100 MPa or more including, an ethylene-vinyl alcohol-based copolymer layer, a heat sealing resin layer, and an adhesive resin layer, in which the ethylene-vinyl alcohol-based copolymer layer contains a sodium ion, and a content of the sodium ion in the ethylene-vinyl alcohol-based copolymer layer is 10 ppm to 500 ppm.
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公开(公告)号：US20190256700A1
公开(公告)日：2019-08-22
申请号：US16400467
申请日：2019-05-01
摘要： Provided is a resin composition comprising an ethylene-vinyl alcohol copolymer (A), a hydrate-forming metal salt (B), and a polyamide-based resin (C) that inhibits elution of a resin composition layer during hot water sterilization treatment of a multilayered structure including the resin composition layer, while suppressing odor during melt molding of the resin composition. An aromatic polyamide (C1) and an aliphatic polyamide (C2) are used for the polyamide-based resin (C) at a proportion of (C1)/(C2)=55/45-99/1.
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公开(公告)号：US20210402747A1
公开(公告)日：2021-12-30
申请号：US17469277
申请日：2021-09-08
IPC分类号： B32B27/08 , B32B27/36 , B32B7/12 , B32B27/34 , B32B27/30 , B32B27/32 , B32B1/00 , B65D65/40 , B65D75/00
摘要： A multilayer structure includes a protective layer, an ethylene-vinyl alcohol copolymer layer, a heat seal resin layer, and an intermediate layer provided between the ethylene-vinyl alcohol copolymer layer and the heat seal resin layer and containing a polypropylene resin, wherein the intermediate layer further contains a hydrocarbon resin having a number average molecular weight of 100 to 3,000, and a softening point of not less than 60° C. and less than 170° C. The multilayer structure satisfies requirements for a lower water vapor permeability and a sufficient heat seal strength, and provides a standup pouch having a smaller gas barrier property change rate after retort treatment.
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公开(公告)号：US20220133921A1
公开(公告)日：2022-05-05
申请号：US17579034
申请日：2022-01-19
发明人： Shinji NAKANISHI
摘要： A production method for a high-pressure processed multilayer structure to be used for packages for foods and the like is provided. The production method includes: preparing a multilayer structure including an ethylene-vinyl alcohol copolymer (EVOH) layer formed from a resin composition containing an ethylene-vinyl alcohol copolymer having a saponification degree of greater than 99.7 mol % as a main component and an olefin resin layer having a thickness of less than 100 μm; and high-pressure processing the multilayer structure under a pressure of not lower than 200 MPa in an atmosphere at not lower than 20° C.
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