Method for preparing thermoplastic starch by in-situ reactive extrusion plasticization process and method for preparing starch/polymer blend by in-situ reactive extrusion plasticization and compatibilization process

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United States of America Patent

PATENT NO 12098253
APP PUB NO 20220298308A1
SERIAL NO

17831092

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Abstract

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A method of producing a thermoplastic starch by an in-situ reactive extrusion plasticization process and a method for preparing a starch/polymer blend by an in-situ reactive extrusion plasticization and compatibilization process. In the method, a plasticizer reaction precursor (or a plasticizing compatibilizer reaction precursor) is mixed with starch to adhere to the surface of the starch or enter the starch to break the intermolecular and intramolecular hydrogen bonds of the starch. Then a mixture of the plasticizer reaction precursor (or the plasticizing compatibilizer reaction precursor) and starch is subjected to extrusion to produce the thermoplastic starch (or the starch/polymer blend), where the reaction precursor undergoes an in-situ reaction on the surfaces of the starch and in the starch to form a macro-molecular plasticizer (or a plasticizing compatibilizer) to plasticize starch or provide plasticizing and compatibilizing effect on the starch/polymer blend.

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Patent Owner(s)

Patent OwnerAddress
NORTH UNIVERSITY OF CHINA030051 XUEYUAN ROAD SHANXI PROVINCE TAIYUAN PROVINCE NO 3 TAIYUAN CITY SHANXI PROVINCE 030051
SHANXI ZHONGBEI NEW MATERIAL TECHNOLOGY CO LTDAREA B ROOM 6318 BUILDING 182 NO 3 XUEYUAN ROAD JIANCAOPING DISTRICT TAIYUAN SHANXI 030051

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Liu, Yaqing Taiyuan, CN 32 22
Xiang, Yang Taiyuan, CN 54 319
Zhao, Guizhe Taiyuan, CN 28 22

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