公开(公告)号：US11865815B2

公开(公告)日：2024-01-09

申请号：US15535279

申请日：2015-12-24

Applicant: KURARAY CO., LTD.

Inventor： Yasuhiro Nonaka ,  Yasutaka Inubushi

IPC: B32B27/00 ,  C08F8/04 ,  C08K3/16 ,  C08K5/09 ,  C08K5/098 ,  C08K5/51 ,  C08K5/52 ,  C08K5/092 ,  C08L29/02 ,  C08L29/06

CPC classification number: B32B27/00 ,  C08F8/04 ,  C08K3/16 ,  C08K5/09 ,  C08K5/092 ,  C08K5/098 ,  C08K5/51 ,  C08K5/52 ,  C08L29/02 ,  C08L29/06 ,  C08K2201/014 ,  C08K5/09 ,  C08L29/02 ,  C08K5/092 ,  C08L29/02 ,  C08K5/098 ,  C08L29/02 ,  C08K5/51 ,  C08L29/02 ,  C08K5/52 ,  C08L29/02 ,  C08K3/16 ,  C08L29/02

Abstract: Provided is a resin composition containing polymethallyl alcohol (A) having a repeating structural unit represented by the following formula (1) in an amount of greater than or equal to 30 mol %, and a component (B) that is at least one of an acid component having a pKa of 3.5 to 7.5 and an anion of the acid component, the pKa being a logarithmic value of a reciprocal of an acid dissociation constant at 25° C., a content of the component (B) being greater than or equal to 0.01 μmol per 1 g of the polymethallyl alcohol (A); a method of producing the resin composition; and a molding containing the resin composition.

公开(公告)号：US20220388286A1

公开(公告)日：2022-12-08

申请号：US17762941

申请日：2020-09-24

Applicant: KURARAY CO., LTD.

Inventor： Yasuhiro Nonaka ,  Tatsuya Oshita

IPC: B32B27/08 ,  B32B27/30 ,  B32B27/40

Abstract: The present disclosure provides a laminate having a gas barrier layer and a polyurethane layer.

公开(公告)号：US10448584B2

公开(公告)日：2019-10-22

申请号：US15027848

申请日：2014-09-26

Applicant: KURARAY CO., LTD.

Inventor： Yasuyo Nishimura ,  Yasuhiro Nonaka

IPC: A01G31/00 ,  A01G1/00 ,  A01G24/00 ,  A01G27/04

Abstract: The present invention provides a medium for plant cultivation including a thermoplastic resin containing at least one of an ethylene unit and a propylene unit, wherein an extract obtained by treating 10 g of the thermoplastic resin with 50 mL of ion-exchange water at 95° C. for 4 hours has a pH at 25° C. not less than 4 and not more than 9; a medium for plant cultivation allowing a plant to be efficiently grown regardless of the type of the plant with an apparatus and a method for plant cultivation including the medium for plant cultivation; and an apparatus and a method for plant cultivation including the medium for plant cultivation.

公开(公告)号：US11813825B2

公开(公告)日：2023-11-14

申请号：US17762941

申请日：2020-09-24

Applicant: KURARAY CO., LTD.

Inventor： Yasuhiro Nonaka ,  Tatsuya Oshita

IPC: B32B27/08 ,  B32B27/30 ,  B32B27/40

CPC classification number: B32B27/08 ,  B32B27/306 ,  B32B27/40 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2250/42 ,  B32B2307/7242 ,  B32B2307/732

Abstract: The present disclosure provides a laminate having a gas barrier layer and a polyurethane layer.

公开(公告)号：US11407880B2

公开(公告)日：2022-08-09

申请号：US15538296

申请日：2015-12-24

Applicant: KURARAY CO., LTD.

Inventor： Yasuhiro Nonaka

IPC: C08K3/10 ,  C08K3/16 ,  C08K5/098 ,  C08K5/51 ,  C08K5/52 ,  C08L29/02 ,  B32B27/08 ,  C08K3/22 ,  C08K3/28 ,  C08K3/32 ,  C08K5/09 ,  C08K5/092 ,  C09D129/06

Abstract: Provided is a resin composition containing polymethallyl alcohol (A) having a repeating structural unit represented by the following formula (1) in an amount of greater than or equal to 30 mol %, and a metal ion (B), a content of the metal ion (B) being greater than or equal to 0.05 μmol per 1 g of the polymethallyl alcohol (A); a method of producing the resin composition; and a molding containing the resin composition.

公开(公告)号：US11020942B2

公开(公告)日：2021-06-01

申请号：US16305683

申请日：2017-05-31

Applicant: KURARAY CO., LTD.

Inventor： Makoto Suzuki ,  Yasuhiro Nonaka

IPC: B32B7/12 ,  B32B25/08 ,  B32B25/16 ,  B32B27/08 ,  B32B27/30 ,  B32B27/40

Abstract: Provided are: a laminate having an outer surface thereof that is highly adhesive to a rubber material, and having sufficient gas barrier properties, interlayer adhesiveness and flex resistance; a multilayered structure including such a laminate; and a method for producing the same. A laminate including: a plurality of gas barrier layers (A) formed from a polymer including a gas barrier resin; and an elastomer layer (B) including at least one adhesive layer (B1), wherein a sum of number of the gas barrier layers (A) and number of the elastomer layer (B) is 5 or greater and 300 or less, the adhesive layer (B1) is laminated as at least an outermost layer, and the adhesive layer (B1) includes a styrene elastomer and is formed from a polymer having an iodine value of 200 or greater and 300 or less.

公开(公告)号：US11718074B2

公开(公告)日：2023-08-08

申请号：US16305681

申请日：2017-05-31

Applicant: KURARAY CO., LTD.

Inventor： Yasuhiro Nonaka ,  Makoto Suzuki

IPC: B32B27/08 ,  B32B25/08 ,  B32B25/14 ,  B32B27/30 ,  B32B27/40 ,  C08J5/18 ,  B29C48/08 ,  B29K75/00 ,  B29K23/00

CPC classification number: B32B27/08 ,  B32B25/08 ,  B32B25/14 ,  B32B27/302 ,  B32B27/306 ,  B32B27/40 ,  C08J5/18 ,  B29C48/08 ,  B29K2023/083 ,  B29K2075/00 ,  B29K2995/0067 ,  B32B2250/05 ,  B32B2250/24 ,  B32B2250/42 ,  B32B2307/7244 ,  B32B2439/70 ,  C08J2329/04 ,  C08J2425/04 ,  C08J2475/04

Abstract: A film with a gas barrier resin having a glass transition temperature of 70° C. or below and an elastomer, and having an oxygen permeability coefficient of 200 mL/(m2·day·atm) or less. In a case where tension is applied to stretch the film in a machine direction (MD) at 20° C. such that a twofold increase in length of the film is kept for 30 seconds, and then the tension is released, a ratio L2/L1 is 1.5 or less, where L1 denotes the length of the film prior to application of the tension and L2 denotes the length of the film subsequent to release of the tension. An elongation ratio at break ETD/EMD of the film is preferably 0.9 or more and 1.7 or less, there EMD denotes the elongation at break in MD and ETD denotes the elongation at break in the transverse direction (TD).

公开(公告)号：US20230090237A1

公开(公告)日：2023-03-23

申请号：US17800652

申请日：2020-06-18

Applicant: KURARAY CO., LTD.

Inventor： Mizuko Oshita ,  Yasuhiro Nonaka

IPC: C08L29/04 ,  C08K5/098 ,  C08K3/08

Abstract: Provided are: a resin composition which inhibits the generation of aggregates at the time of melt molding and enables obtaining a molded product which has sufficient heat/light resistance and is unlikely to break down into microplastics after being discarded, the above-mentioned characteristics being sufficiently improved compared to a resin composition obtained using the same ethylene-vinyl alcohol copolymer (EVOH), and the like. The resin composition contains: an ethylene-vinyl alcohol copolymer (A); and an aluminum ion (B), wherein at least a part of the ethylene-vinyl alcohol copolymer (A) comprises, at a polymer end, at least one of a carboxylic acid unit (I) and a lactone ring unit (II), a total content (i+ii) of the carboxylic acid unit (I) and the lactone ring unit (II) per gram of the ethylene-vinyl alcohol copolymer (A) is 14 μmol/g or more and 78 μmol/g or less, and a content (b) of the aluminum ion (B) per gram of the ethylene-vinyl alcohol copolymer (A) is 0.002 μmol/g or more and 0.17 μmol/g or less.

公开(公告)号：US20220396060A1

公开(公告)日：2022-12-15

申请号：US17762950

申请日：2020-09-24

Applicant: KURARAY CO., LTD.

Inventor： Yasuhiro Nonaka ,  Tatsuya Oshita

IPC: B32B27/30 ,  B32B27/40 ,  B32B27/08 ,  B32B27/20

Abstract: The present disclosure provides a multilayer structure having a gas barrier layer and a polyurethane layer; a molded product having such a multilayer structure; and a method for producing the molded product.

公开(公告)号：US10047204B2

公开(公告)日：2018-08-14

申请号：US14894459

申请日：2014-05-28

Applicant: KURARAY CO., LTD.

Inventor： Hiroshi Kawai ,  Yasuhiro Nonaka

IPC: C08J5/18 ,  C08K3/01 ,  C08K3/00 ,  C08K5/07 ,  C23C14/14 ,  C08J7/06 ,  C08K3/22 ,  C08K3/36

Abstract: Provided is a resin composition that achieves superior appearance characteristics such as a color of a film end (or a roll end) after melt molding, film-breaking resistance, blocking resistance, vapor deposition defects-inhibiting properties, and adhesive strength of a vapor deposition layer. The resin composition contains: an ethylene-vinyl alcohol copolymer; inorganic particles; and an aliphatic carbonyl compound having 3 to 8 carbon atoms, in which the content of the inorganic particles is 50 ppm or greater and 5,000 ppm or less, the aliphatic carbonyl compound is at least one selected from the group consisting of a saturated aldehyde, an unsaturated aldehyde and a saturated ketone, and the content of the aliphatic carbonyl compound is 0.01 ppm or greater and 100 ppm or less. The inorganic particles preferably contain a metal element which is at least one selected from the group consisting of silicon, aluminum, magnesium, zirconium, cerium, tungsten and molybdenum.