Title:
ESTERIFICATED STARCH AND STARCH-BASED PLASTIC COMPOSITION
Document Type and Number:
Japanese Patent JP2018053192
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide esterificated starch having water resistance, having miscibility with the other plastics, and producible without using a non-aqueous organic solvent, and a starch-based plastic composition.SOLUTION: Provided is esterificated starch obtained by subjecting a heat-treated starch mixture including starch and polyhydric alcohol to esterification treatment with vinyl ester and a carbonate. By the heat-treatment of the starch mixture including the starch and the polyhydric alcohol, since the starch in the starch mixture lies in a state where the starch grains are collapsed by the polyhydric alcohol, without using a non-aqueous organic solvent, esterification is possible, and the esterified starch high in an ester substitution degree is made possible. According to the esterificated starch, a starch-based plastic composition having strong hydrophobic properties and excellent in water resistance and miscibility with the other plastics can be made.SELECTED DRAWING: None
Inventors:
ITO KENGO
Application Number:
JP2016193995A
Publication Date:
April 05, 2018
Filing Date:
September 30, 2016
Export Citation:
Assignee:
NIHON CORNSTARCH CORP
International Classes:
C08B31/04; C08L3/06; C08L101/00
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Foreign References:
| WO2008044588A1 | 2008-04-17 |
Other References:
MOAD, G.: "Chemical modification of starch by reactive extrusion", PROGRESS IN POLYMER SCIENCE, vol. 36, JPN6020015615, 19 November 2010 (2010-11-19), pages 218 - 237, XP028128721, ISSN: 0004428960, DOI: 10.1016/j.progpolymsci.2010.11.002
GRAAF, R.A. ET AL: "The Acetylation of Starch by Reactive Extrusion", STARCH, vol. 50(5), JPN6017010003, 1998, pages 198 - 205, ISSN: 0004428959
GRAAF, R.A. ET AL: "The Acetylation of Starch by Reactive Extrusion", STARCH, vol. 50(5), JPN6017010003, 1998, pages 198 - 205, ISSN: 0004428959
Attorney, Agent or Firm:
Shiga International Patent Office
Akio Iida
Michiko Ema
Chiori Ueda
Toshiyuki Ando
Akio Iida
Michiko Ema
Chiori Ueda
Toshiyuki Ando
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