Starchy polymeric mixture particularly for the production of fil

Details Starchy polymeric mixture particularly for the production of fil Starchy polymeric mixture particularly for the production of fil

1991-07-23

1993-08-10

Michl, Paul R.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524 48, 524 52, 524 55, 524404, 524405, C08L 300, C08F 338

Patent

active

052349772

ABSTRACT:
The material, which is usable for the production of biodegradable articles in film, sheet or fiber form, can be produced by extrusion from a molten mass including a synthetic thermoplastic polymer and a destructured starch to which a boron containing compound, such as boric acid, metaboric acid, borax and derivatives thereof has been added. Articles made of this material have improved transparency, Young's modulus and tear strength.

REFERENCES:
patent: 3320200 (1967-05-01), Kane
patent: 3652542 (1972-03-01), Hjermstad
patent: 4094718 (1978-06-01), Czerwin
patent: 4673438 (1987-06-01), Wittwer
patent: 4677145 (1987-06-01), Krankkala
patent: 4933383 (1990-06-01), Murdock et al.
patent: 5095054 (1992-03-01), Lay et al.
Chemical Abstracts, vol. 7, No. 8, p. 47, Abstract No. 60151n, F. H. Otey et al., "Starch-based blown films" (Aug. 24, 1987).
Otey, F. H. et al., Ind. Eng. Chem. Res. 26(8):1659-1663 (1987), "Starch-Based Blown Films".

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