Polyester film

Details Polyester film Polyester film

1993-04-20

1994-06-28

Acquah, Samuel A.

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

Synthetic resins

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

528272, 528296, 528300, 528301, 528302, 528307, 525437, C08F 2000

Patent

active

053247949

ABSTRACT:
An aliphatic polyester film which is synthesized from a glycol and an aliphatic polybasic acid having a melt viscosity of 2,000-100,000 poises at a temperature of 190.degree. C. and a shear rate of 100 sec.sup.-1, and having a melting point of 70.degree.-200.degree. C. The film is excellent in heat stability and mechanical strength as well as biodegradability when buried in the earth; and has low combustion heat than polyethylene and polypropyrene.

REFERENCES:
patent: 2999851 (1961-09-01), Elmer
patent: 4041208 (1977-08-01), Seeger et al.
patent: 4166873 (1979-09-01), Gilliam
patent: 5061778 (1991-10-01), Uchida et al.
patent: 5068143 (1991-11-01), Agger et al.

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