WO2026022738 - DURABLE AND RECYCLABLE THERMOPLASTIC STARCH COMPOSITIONS AND METHODS OF MANUFACTURE THEREOF
National phase entry is expected:
Publication Number
WO/2026/022738
Publication Date
29.01.2026
International Application No.
PCT/IB2025/057480
International Filing Date
23.07.2025
Title **
[English]
DURABLE AND RECYCLABLE THERMOPLASTIC STARCH COMPOSITIONS AND METHODS OF MANUFACTURE THEREOF
[French]
COMPOSITIONS D'AMIDON THERMOPLASTIQUE DURABLES ET RECYCLABLES ET LEURS PROCÉDÉS DE FABRICATION
Applicants **
ERTHOS INC.
Inventors
OGUNSONA, Emmanuel Olusegun
ZARRINBAKHSH, Nima
Priority Data
63/674,544
23.07.2024
US
63/674,545
23.07.2024
US
63/674,548
23.07.2024
US
63/674,549
23.07.2024
US
Application details
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International Searching Authority |
CIPO
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| Recordal of a Change of the Applicant's Name/Address |
Change of Applicant's Name and Address
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| Type of Assignment |
The Standard Agent's Assignment
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| Applicant's Legal Status |
Legal Entity
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| Entry into National Phase under |
Chapter I
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| Patent Delivery |
Send the Letters Patent by Courier
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| 译文 |
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Quotation for National Phase entry
| Country | Stages | Total | |
|---|---|---|---|
| China | Filing, Examination, Granting | 2633 | |
| EPO | Filing, Examination, Granting | 14937 | |
| Japan | Filing, Examination, Granting | 2307 | |
| South Korea | Filing, Examination, Granting | 2561 | |
| USA | Filing, Examination, Granting | 4740 |
Total:
27,178
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Abstract[English]
The invention relates to novel starch-based additives and the blends of biodegradable thermoplastic polyesters with the starch-based additive, as well as the method for production thereof. The starch-based additive encompasses starches, acidifiers, alkalizers, plasticizers, and optionally compatibilizers and coupling agents, and fillers. The starch-based additive of the invention could be 100 % bio-based and it is melt processable and miscible with biodegradable thermoplastic polyesters. The invention also relates to the novel thermoplastic starch (TPS) compositions, methods of preparation and use thereof. The TPS compositions of the invention exhibit long-term durability of its mechanical properties, long-term processability and recyclability, and high thermal stability. Hence, the elimination of the retrogradation phenomenon in TPS, a drawback well known for TPS, is achieved.[French]
L'invention concerne de nouveaux additifs à base d'amidon et les mélanges de polyesters thermoplastiques biodégradables avec l'additif à base d'amidon, ainsi que leur procédé de fabrication. L'additif à base d'amidon englobe des amidons, des acidifiants, des agents alcalinisants, des plastifiants et éventuellement des agents de compatibilité et des agents de couplage et des charges. L'additif à base d'amidon de l'invention pourrait être à 100 % d'origine biologique et il peut être traité à l'état fondu et est miscible avec des polyesters thermoplastiques biodégradables. L'invention concerne également les nouvelles compositions d'amidon thermoplastique (TPS), leurs procédés de préparation et d'utilisation. Les compositions TPS de l'invention présentent une durabilité à long terme de ses propriétés mécaniques, une aptitude au traitement et une aptitude au recyclage à long terme et une stabilité thermique élevée. Par conséquent, l'élimination du phénomène de rétrogradation dans le TPS, un inconvénient bien connu pour le TPS, est obtenue.