公开(公告)号：US20240270998A1

公开(公告)日：2024-08-15

申请号：US18569700

申请日：2022-06-10

Applicant: KANEKA CORPORATION

Inventor： Kensuke MURASHIMA ,  Itsuki KUSAKABE ,  Masayuki FUJITA ,  Yasunori OKADA

IPC: C09D167/04 ,  B32B7/02 ,  B32B27/10 ,  B32B27/36 ,  C08G63/06

CPC classification number: C09D167/04 ,  B32B7/02 ,  B32B27/10 ,  B32B27/36 ,  C08G63/06 ,  B32B2250/03 ,  B32B2307/7163 ,  B32B2307/718 ,  B32B2307/748 ,  B32B2553/00 ,  C08G2230/00

Abstract: A biodegradable laminated article includes: a substrate layer; a first thermoplastic resin (A1) layer located on one side of the substrate layer and containing a polyhydroxyalkanoate resin; and a second thermoplastic resin (A2) layer located on the other side of the substrate layer and containing a polyhydroxyalkanoate resin. The weight per unit area of the first thermoplastic resin (A1) layer is from 10 to 200 g/m2, and the weight per unit area of the second thermoplastic resin (A2) layer is from 0.1 to 5 g/m2.

公开(公告)号：US20230332356A1

公开(公告)日：2023-10-19

申请号：US18245596

申请日：2021-09-09

Applicant: KANEKA CORPORATION

Inventor： Asuka FUKUTOME ,  Yasunori OKADA ,  Tetsuo OKURA ,  Kensuke MURASHIMA

IPC: D21H19/12 ,  D21H25/06

CPC classification number: D21H19/12 ,  D21H25/06

Abstract: A laminated article includes a base layer and a coating layer disposed over at least one side of the base layer. The coating layer contains a poly(3-hydroxybutyrate) resin. In a crystalline melting curve obtained by differential scanning calorimetry of the coating layer, the coating layer has at least one peak top temperature (Tma) in the range of 100 to 150° C. and at least one peak top temperature (Tmb) in the range of 150 to 170° C., and the difference between the temperatures Tma and Tmb is 10° C. or more.

公开(公告)号：US20250144925A1

公开(公告)日：2025-05-08

申请号：US18729994

申请日：2023-01-31

Applicant: KANEKA CORPORATION

Inventor： Kensuke MURASHIMA ,  Yasunori OKADA

IPC: B32B27/10 ,  B32B27/36 ,  B32B33/00 ,  B32B37/15

Abstract: A biodegradable laminate includes in order: a layer of a paper substrate (A); a layer of a first thermoplastic resin (B) containing a poly(3-hydroxyalkanoate) resin as a main component; and a layer of a second thermoplastic resin (C) containing a poly(3-hydroxyalkanoate) resin as a main component. The poly(3-hydroxyalkanoate) resin in the first thermoplastic resin (B) has a weight-average molecular weight of 10×104 to less than 35×104, and the poly(3-hydroxyalkanoate) resin in the second thermoplastic resin (C) has a weight-average molecular weight of 45×104 to less than 70×104.

公开(公告)号：US20250083426A1

公开(公告)日：2025-03-13

申请号：US18955030

申请日：2024-11-21

Applicant: KANEKA CORPORATION

Inventor： Kensuke MURASHIMA ,  Itsuki KUSAKABE ,  Masayuki FUJITA ,  Yasunori OKADA

IPC: B32B27/10 ,  B32B7/12 ,  B32B27/36 ,  C09J7/35 ,  C09J11/08

Abstract: A laminate includes, in order, a substrate layer (A), a bonding layer (B), and a resin layer (D) containing a poly(3-hydroxyalkanoate) copolymer (C). A glass transition temperature of a total resin material contained in the bonding layer (B) is from 20 to below 90° C., the bonding layer (B) has a weight per square meter of 0.1 to less than 5.0 g/m2, and the resin layer (D) has a thickness of 5 to 100 μm.

公开(公告)号：US20240391225A1

公开(公告)日：2024-11-28

申请号：US18707812

申请日：2022-11-10

Applicant: KANEKA CORPORATION

Inventor： Yasunori OKADA ,  Kensuke MURASHIMA ,  Tomofumi KUBOTA

IPC: B32B27/10 ,  B29C48/00 ,  B29C48/08 ,  B29K67/00 ,  B29K105/00 ,  B32B27/36 ,  B65D65/40 ,  B65D65/46

Abstract: A laminated article includes at least a substrate layer and a sealant layer. The sealant layer is located on at least one outermost side of the laminated article, and the sealant layer is a resin layer containing a polyhydroxyalkanoate resin component. In differential scanning calorimetry of the polyhydroxyalkanoate resin component, a highest melting peak temperature is 130° C. or higher, and a total crystalline melting enthalpy calculated from all melting peaks is in a range of 20 to 65 J/g.