Organic compounds -- part of the class 532-570 series – Organic compounds – Carbohydrates or derivatives
Patent
1996-02-26
1997-12-02
Kight, John
Organic compounds -- part of the class 532-570 series
Organic compounds
Carbohydrates or derivatives
536124, 514 57, 514 60, 514 54, C08B 3102, A61K 31715, A01N 4304
Patent
active
056937865
ABSTRACT:
A starch derivative which, when incorporated with no or only a little plasticizer, yields moldings having good flexibility, toughness, and water-relating properties for practical use is an esterified, polyester-grafted starch which is formed by esterifying starch and grafting the starch with polyester. The esterification involves the introduction of one or more acyl groups consisting of saturated or unsaturated aliphatic acid groups or aromatic carboxylic acid groups having 2 to 18 carbon atoms and the polyester is one which is formed from one or more 4- to 12-membered lactones by ring-opening polymerization, with the terminal hydroxyl groups being almost completely blocked by esterification.
REFERENCES:
patent: 3795670 (1974-03-01), Mark et al.
patent: 4891404 (1990-01-01), Narayan et al.
patent: 5367067 (1994-11-01), Frische et al.
patent: 5462983 (1995-10-01), Bloembergen et al.
A. M. Mark and C. L. Mehltretter, Die Starke 22, Jahrg, 1970/Nr. 4 (pp. 108-110). Publication discussing the acetylation of high-amylose corn starch.
A. M. Mark and C. L. Mehltretter, Die Starke 24, Jahrg, 1972/Nr. 3 (pp. 73-76). Publication discussing preparation of starch triacetates.
Journal of Applied Polymer Sciences, vol. 22, 1978 (pp. 459-465). "A New Biodegradable Plastic Made From Starch Graft Poly (methyl acrylate) Copolymer". Publication discussing grafted starch-based, biodegradable plastics.
Chemical Abstracts, vol. 95, No. 2, issued Jul. 1981, Nichiden Kagaku Co., Ltd., "Sizing Agents for Polyester Fibers", p. 8760, col. 1, abstract No. 8751c, Patent Document No. JP-56020680.
Kawamatsu Tetsuya
Okumura Yasuhito
Tanaka Hideyuki
Tanaka Hiroshi
Japan Corn Starch Co. Ltd.
Kight John
White Everett
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