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：US20150210461A1

公开(公告)日：2015-07-30

申请号：US14428651

申请日：2013-09-13

Applicant: PLANTIC TECHNOLOGIES LTD

Inventor： Brendan Leigh Morris ,  David Colin Jacka

IPC: B65D81/24 ,  B65B47/02 ,  B65B7/28 ,  B65D65/38 ,  B65B5/04

CPC classification number: B65D81/24 ,  B32B7/00 ,  B32B7/02 ,  B32B7/12 ,  B32B9/00 ,  B32B9/02 ,  B32B9/04 ,  B32B9/045 ,  B32B19/00 ,  B32B19/04 ,  B32B27/00 ,  B32B27/06 ,  B32B27/08 ,  B32B27/18 ,  B32B27/22 ,  B32B27/28 ,  B32B27/30 ,  B32B27/304 ,  B32B27/32 ,  B32B27/325 ,  B32B27/34 ,  B32B27/36 ,  B32B2264/00 ,  B32B2264/10 ,  B32B2264/102 ,  B32B2307/40 ,  B32B2307/518 ,  B32B2307/724 ,  B32B2307/7242 ,  B32B2307/7244 ,  B32B2307/7246 ,  B32B2307/7265 ,  B32B2307/732 ,  B32B2307/736 ,  B32B2439/00 ,  B32B2439/40 ,  B32B2439/70 ,  B65B5/04 ,  B65B7/2842 ,  B65B47/02 ,  B65D65/38 ,  B65D65/40 ,  B65D81/2069 ,  B65D2565/388 ,  Y02A40/961 ,  Y02W90/11

Abstract: This invention relates to food packaging and to methods for its manufacture. It is particularly suited to packaging of perishable foodstuffs which require that oxygen transmission occur across the packaging barrier, but that water vapour transmission be restricted.

Abstract translation: 本发明涉及食品包装及其制造方法。 它特别适用于包装易腐食品，这些食品需要在整个包装屏障上发生氧气传播，但是限制了水蒸气传输。

公开(公告)号：US11718733B2

公开(公告)日：2023-08-08

申请号：US17229889

申请日：2021-04-14

Applicant: Plantic Technologies Ltd.

Inventor： Kishan Khemani ,  Graeme Moad ,  Edmond Lascaris ,  Guoxin Li ,  George Simon ,  Jana Habsuda ,  Robert Shanks ,  Antonietta Genovese ,  Wasantha Gunaratne ,  Lance Nichols

IPC: C08L3/00 ,  C08L3/02 ,  C08K9/04 ,  B29B7/00 ,  B29B7/46 ,  B29B7/82 ,  B29C48/40 ,  B29B7/72 ,  C08K3/34

CPC classification number: C08L3/02 ,  B29B7/007 ,  B29B7/46 ,  B29B7/728 ,  B29B7/823 ,  B29B7/826 ,  B29C48/40 ,  C08K9/04 ,  C08K3/346 ,  C08L3/02 ,  C08L2666/06 ,  C08K9/04 ,  C08L3/02

Abstract: In one aspect, the invention provides a substantially exfoliated nanocomposite material including starch and hydrophobically modified layered silicate clay. In another aspect, the invention provides packaging made from material including the substantially exfoliated nanocomposite material described above. The nanocomposite material has improved mechanical and rheological properties and reduced sensitivity to moisture in that the rates of moisture update and/or loss are reduced. In another aspect, the invention provides a process for preparing the substantially exfoliated nanocomposite material described above, including a step of mixing the starch in the form of an aqueous gel with the hydrophobic clay in a melt mixing device. In a further aspect, the invention provides a process for preparing the substantially exfoliated nanocomposite material, including the steps of mixing the starch with the hydrophobic clay to form a masterbatch (hereinafter “the masterbatch process”) and mixing the masterbatch with further starch.

公开(公告)号：US20230241864A1

公开(公告)日：2023-08-03

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 ,  B32B27/36 ,  B32B7/12

CPC classification number: B32B9/02 ,  B32B27/36 ,  B32B7/12 ,  B32B2439/70 ,  B32B2307/7163 ,  B32B2307/7244 ,  B32B2367/00 ,  B32B2317/20 ,  B32B2250/02

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：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：US11008442B2

公开(公告)日：2021-05-18

申请号：US15629073

申请日：2017-06-21

Applicant: Plantic Technologies Ltd.

Inventor： Kishan Khemani ,  Graeme Moad ,  Edmond Lascaris ,  Guoxin Li ,  George Simon ,  Jana Habsuda ,  Robert Shanks ,  Antonietta Genovese ,  Wasantha Gunaratne ,  Lance Nichols

IPC: C08L3/12 ,  C08L3/02 ,  C08K9/04 ,  B29B7/00 ,  B29B7/46 ,  B29B7/82 ,  B29C48/40 ,  B29B7/72 ,  C08K3/34

Abstract: In one aspect, the invention provides a substantially exfoliated nanocomposite material including starch and hydrophobically modified layered silicate clay. In another aspect, the invention provides packaging made from material including the substantially exfoliated nanocomposite material described above. The nanocomposite material has improved mechanical and rheological properties and reduced sensitivity to moisture in that the rates of moisture update and/or loss are reduced. In another aspect, the invention provides a process for preparing the substantially exfoliated nanocomposite material described above, including a step of mixing the starch in the form of an aqueous gel with the hydrophobic clay in a melt mixing device. In a further aspect, the invention provides a process for preparing the substantially exfoliated nanocomposite material, including the steps of mixing the starch with the hydrophobic clay to form a masterbatch (hereinafter “the masterbatch process”) and mixing the masterbatch with further starch.

公开(公告)号：US20170283579A1

公开(公告)日：2017-10-05

申请号：US15629073

申请日：2017-06-21

Applicant: Plantic Technologies Ltd.

Inventor： Kishan Khemani ,  Graeme Moad ,  Edmond Lascaris ,  Guoxin Li ,  George Simon ,  Jana Habsuda ,  Robert Shanks ,  Antonietta Genovese ,  Wasantha Gunaratne ,  Lance Nichols

IPC: C08L3/02 ,  C08K9/04 ,  C08K3/34

CPC classification number: C08L3/02 ,  B29B7/007 ,  B29B7/46 ,  B29B7/728 ,  B29B7/823 ,  B29B7/826 ,  B29C48/40 ,  C08K3/346 ,  C08K9/04 ,  C08L2666/06

Abstract: In one aspect, the invention provides a substantially exfoliated nanocomposite material including starch and hydrophobically modified layered silicate clay. In another aspect, the invention provides packaging made from material including the substantially exfoliated nanocomposite material described above. The nanocomposite material has improved mechanical and rheological properties and reduced sensitivity to moisture in that the rates of moisture update and/or loss are reduced. In another aspect, the invention provides a process for preparing the substantially exfoliated nanocomposite material described above, including a step of mixing the starch in the form of an aqueous gel with the hydrophobic clay in a melt mixing device. In a further aspect, the invention provides a process for preparing the substantially exfoliated nanocomposite material, including the steps of mixing the starch with the hydrophobic clay to form a masterbatch (hereinafter “the masterbatch process”) and mixing the masterbatch with further starch.

公开(公告)号：US20040242732A1

公开(公告)日：2004-12-02

申请号：US10805224

申请日：2004-03-22

Applicant: Plantic Technologies, Ltd.

Inventor： Long Yu ,  Stephen Coombs ,  Gregor Bruce Yeo Christie

IPC: C08L001/00

CPC classification number: C08L3/02 ,  B29K2003/00 ,  B29K2029/04 ,  B29K2995/006 ,  B65D65/466 ,  C08K5/053 ,  C08K5/09 ,  C08L3/06 ,  C08L3/08 ,  C08L3/18 ,  C08L29/04 ,  C08L31/04 ,  C08L2205/02 ,  Y02W90/11 ,  Y02W90/13 ,  Y10T428/1345 ,  C08L2666/02 ,  C08L2666/26

Abstract: A biodegradable polymer is disclosed having the composition g) from 8 to 80% by weight of a starch modified to include an hydroxyalkyl C2-6 group or modified by reaction with an anhydride of a dicarboxylic acid, preferably hydroxypropylated high amylose starch, a) from 0 to 87.9% of starch, b) from 4 to 11% by weight of a water soluble polymer selected from polyvinylacetate, polyvinyl alcohol and copolymers of ethylene and vinylalcohol which have a melting point compatible with the molten stat of the starch components, c) from 0 to 20% by weight of a polyol plasticiser, preferably glycerol, d) from 0.1 to 1.5% by weight of a C12-22 fatty acid or salt, preferably stearic acid and, e) 0 to 12% added water. The polymers are suitable as biodegradable rigid sheet or flexible film materials for use in packaging foodstuffs.

Abstract translation: 公开了一种可生物降解的聚合物，其具有如下组成：g）8至80重量％的经修饰以包括羟烷基C2-6基团的淀粉或通过与二羧酸的酸酐（优选羟丙基化的高直链淀粉）反应进行改性的淀粉，a） 0至87.9％的淀粉，b）4至11重量％的选自聚乙酸乙烯酯，聚乙烯醇和具有与淀粉组分的熔融状态相容的熔点的乙烯和乙烯醇的共聚物的水溶性聚合物，c） 0至20重量％的多元醇增塑剂，优选甘油，d）0.1至1.5重量％的C 12-22脂肪酸或盐，优选硬脂酸，和e）0至12重量％的加入水。 该聚合物适用于生物降解的刚性片或用于包装食品的柔性膜材料。

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.