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：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：US20250100256A1

公开(公告)日：2025-03-27

申请号：US18976445

申请日：2024-12-11

Applicant: KANEKA CORPORATION

Inventor： Masayuki FUJITA ,  Hiroaki SUGIYAMA ,  Yasunori OKADA

IPC: B32B27/10 ,  B32B27/36 ,  B32B37/24 ,  C09D167/04

Abstract: A laminate includes a paper substrate layer and a first resin layer located on at least one side of the paper substrate layer. The first resin layer contains a poly(3-hydroxybutyrate) resin and polyvinyl alcohol having a degree of saponification of less than 90 mol %. The solids weight ratio of the poly(3-hydroxybutyrate) resin to the polyvinyl alcohol is from 99.8/0.2 to 95.0/5.0. The laminate can be produced by applying an aqueous coating liquid to at least one side of the paper substrate and drying the applied aqueous coating liquid to form the first resin layer on the paper substrate.