公开(公告)号：US20230092120A1

公开(公告)日：2023-03-23

申请号：US17795063

申请日：2021-02-03

Applicant: Plantic Technologies Ltd

Inventor： Masahiko Ota ,  Akihiro Kotaka ,  Nicholas John McCaffrey

IPC: C08L3/08 ,  C08L3/06 ,  C08L29/04 ,  C09D103/06 ,  C09D103/08 ,  C08J5/18 ,  C09D129/04 ,  B65D5/50

Abstract: Provided is a resin composition capable of forming a coated product that exhibits low adhesion to a metal roll during production and is superior in oxygen barrier property and capable of forming a film or sheet superior in oxygen barrier property, impact strength under low humidity and color tone. The resin composition of the present invention contains 50 to 98 parts by mass of a modified starch (A), 2 to 50 parts by mass of a polyvinyl alcohol (B), 0.1 to 10 parts by mass of a polyoxyalkylene (C), and optionally 0 to 5 parts of a polyol plasticizer (D), wherein the total content of the (A), (B), (C) and (D) is 100 parts by mass.

公开(公告)号：US12280584B2

公开(公告)日：2025-04-22

申请号：US17641990

申请日：2020-09-11

Applicant: PLANTIC TECHNOLOGIES LTD

Inventor： Akihiro Kotaka ,  Masahiko Ota ,  Nicholas John McCaffrey

IPC: B32B9/02 ,  B32B7/12 ,  B32B27/36

Abstract: The present invention relates to a multilayer structure including a starch layer (A), an adhesive layer (B), and a base material layer (C) in the order mentioned. In this multilayer structure, a material constituting the starch layer (A) comprises a starch and water; a material constituting the adhesive layer (B) comprises a thermoplastic resin having a density of 0.920 g/cm3 or lower and has an acid value of 0.3 mgKOH/g or higher; and the base material layer (C) is a layer having a tensile elastic modulus of 100 MPa or higher.

公开(公告)号：US20230167277A1

公开(公告)日：2023-06-01

申请号：US17922116

申请日：2021-04-28

Applicant: Plantic Technologies Ltd.

Inventor： Masahiko Ota ,  Akihiro Kotaka ,  Tsuyoshi Katakura

IPC: C08L3/08 ,  C08L29/04 ,  B29C48/00 ,  B29C48/40

CPC classification number: C08L3/08 ,  B29C48/022 ,  B29C48/40 ,  C08L29/04 ,  B29K2003/00 ,  B29K2029/04 ,  C08L2201/06 ,  C08L2201/14 ,  C08L2203/162

Abstract: The resin composition of the present invention comprises 40 to 98 parts by mass of a modified starch (A), 2 to 60 parts by mass of a polyvinyl alcohol (B) having a degree of saponification of 75.0 mol% or more, and optionally a clay (C), wherein the total content of the (A), (B) and (C) is 100 parts by mass, and the peak temperature of tan δ in measurement of dynamic viscoelasticity in a range of 20° C. to 150° C. is 128° C. or lower.