公开(公告)号：US11578193B2

公开(公告)日：2023-02-14

申请号：US16625284

申请日：2018-06-25

Applicant: PLANTIC TECHNOLOGIES LTD

Inventor： Masahiko Ota ,  Nicholas John McCaffrey

IPC: C08L3/06 ,  C08L3/08 ,  C08L3/12 ,  C08L29/04 ,  C08J3/12 ,  C08K3/34 ,  C08K5/098

Abstract: Provided is a resin composition comprising a starch and a polyvinyl alcohol, which is excellent in the breaking strength and breaking elongation at a low temperature, and at the same time, has the good gas barrier property. The resin composition comprises modified starch and polyvinyl alcohol, and where in a cross section photograph by a transmission electron microscope, a cross-sectional area of each of particles of the polyvinyl alcohol dispersed is calculated, and a cross-sectional shape of each of the particles of the polyvinyl alcohol is postulated to be circular based on the cross-sectional area, the particles of the polyvinyl alcohol have a conversion particle diameter of 50 to 300 nm, and the conversion particle diameter has a dispersity of 3.0 or less.

公开(公告)号：US20230191759A1

公开(公告)日：2023-06-22

申请号：US17924873

申请日：2021-05-14

Applicant: Plantic Technologies Ltd.

Inventor： Masahiko Ota ,  Nicholas John McCaffrey ,  Brendan Leigh Morris

IPC: B32B27/10 ,  B32B27/30 ,  B32B29/00 ,  B32B37/15

CPC classification number: B32B27/10 ,  B32B27/306 ,  B32B29/00 ,  B32B37/15 ,  B32B2037/148

Abstract: A laminate comprising: a gas barrier layer (I) comprising a modified starch (A) having an average amylose content of 45% by mass or more and a water-soluble polymer (B); and a substrate (II) adjacent to the gas barrier layer (I), wherein the laminate exhibits a degree of biodegradation of 80% or more in a biodegradability test in accordance with ISO 14855-1.

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.

公开(公告)号：US20240400799A1

公开(公告)日：2024-12-05

申请号：US18700264

申请日：2022-10-07

Applicant: Plantic Technologies Ltd.

Inventor： Masahiko Ota

IPC: C08L3/08 ,  C08J7/04 ,  C08K5/053 ,  C08K5/101 ,  C09D103/08

Abstract: The present invention relates to a resin composition comprising: 50 to 98 parts by mass of modified starch (A); 2 to 50 parts by mass of polyvinyl alcohol (B); and 0.01 to 0.15 part by mass of a compound represented by formula (1): or a salt thereof (C), in which the total content of the components (A), (B) and (C) is 100 parts by mass, and the average amylose content in the modified starch (A) is 50% by mass or more.