Starch-based composition

Details Starch-based composition Starch-based composition

1994-08-10

1997-06-03

Cain, Edward J.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

523124, 523128, 524312, 524377, 525 542, C08L 300

Patent

active

056355505

ABSTRACT:
The invention relates to an alloy composition possessing improved properties of mechanical resistance. The composition contains a starch, which is preferably plasticized, and a polymer which acts as coupling agent which is chosen from the group consisting of polyolefins modified by chemical functional groups which are active toward the hydroxyl functional groups of starch. Generally, the composition also contains a thermoplastic polymer. The invention also relates to the process for preparing this composition and the use of these compositions for the manufacture of films intended for the paper market and for packages made from biodegradable plastic.

REFERENCES:
patent: 4133784 (1979-01-01), Otey et al.
patent: 5026745 (1991-06-01), Weil
patent: 5334634 (1994-08-01), Bastioli et al.
Ind. Eng. Chem., Prod. Res. Develop., vol. 13, No. 1, 1974, "Starch-Based Film for Degradable Agricultural Mulch", Otey et al., pp. 90-91.
"Viscoelastic Properties Of Polymers", John D. Ferry, 3rd Edition, pp. 11 to 15.
Journal of Applied Polymer Science, vol. 40, pp. 811-812 "Composites of Starch and Poly(ethylene-co-acrylic acid) Complexing between Polymeric Components", Fanta et al.
Lin, Chen-Chong et al., "Studies on multicomponent polymers, VI. PE/starch/calcium carbonate polyblends." Chemical Abstracts, vol. 92, No. 10, Abstract No. 77309g, p. 27 (Mar. 10, 1980).

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