Non-synthetic biodegradable starch-based composition for...

Details Non-synthetic biodegradable starch-based composition for... Non-synthetic biodegradable starch-based composition for...

2006-06-27

2006-06-27

Wilson, James O. (Department: 1623)

Organic compounds -- part of the class 532-570 series

Organic compounds

Carbohydrates or derivatives

C536S128000, C514S060000

Reexamination Certificate

active

07067651

ABSTRACT:
A non-synthetic biodegradable starch-based composition is described comprising starch, plasticizer, reinforcing filler, binder, in the presence or absence of alkali or salt, and water. The starch-based composition is subjected to transformation process to produce various foam-liked products, having closed cell structure with dense skin layer. These products are particularly suitable for use as disposal or single-used food packages or containers. These products are to substitute the shape bodies currently used made of plastic or plastic foam. A transformation process of the non-synthetic biodegradable starch-based composition into various foam-liked products is also described. The process is either injecting or compressing the starch-based composition and forming a desired shape in a closed mould at a temperature ranging from 150 to 300 degree Celcius until the gelatinization of starch has been accomplished.

REFERENCES:
patent: 1899952 (1933-03-01), Giesecke
patent: 3137592 (1964-06-01), Protzman et al.
patent: 5320669 (1994-06-01), Lim et al.
patent: 5449708 (1995-09-01), Schiltz
patent: 5922379 (1999-07-01), Wang

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