Esterified, polyvinyl ester-grafted starch

Details Esterified, polyvinyl ester-grafted starch Esterified, polyvinyl ester-grafted starch

1996-02-26

1998-02-03

Nutter, Nathan M.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

Mixing of two or more solid polymers; mixing of solid...

525 5431, 527300, 527304, 536107, 536110, 536115, 536119, 536126, C08L 300

Patent

active

057145407

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 comprises an esterified, polyvinyl ester-grafted starch derivative which is formed by esterifying starch and grafting starch with a polyvinyl ester. The polyvinyl ester is derived from one or more saturated or unsaturated aliphatic acids or aromatic carboxylic acids having 2 to 18 carbon atoms.

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).
A. M. Mark and C. L. Mehltretter, Die Starke 24, Jahrg, 1972/Nr. 3 (pp. 73-76).
Journal of Applied Polymer Sciences, vol. 22, 1978 (pp. 459-465). "A New Biodegradable Plastic Made From Starch Graft Poly (methyl acrylate) Copolymer".

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