Degradable container

Details Degradable container Degradable container

1993-03-17

1995-04-25

Robinson, Ellis P.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 3692, 215 1C, 264531, 264532, 264523, 264537, 26433121, B65D 100

Patent

active

054097517

ABSTRACT:
A degradable container which is excellent in transparency and impact strength and can be decomposed into nontoxic water and carbon dioxide in the natural environment within a relatively short period can be obtained by using the process for molding a container of an arbitrary shape from a thermoplastic composition having polylactic acid of lactic acids or a copolymer of lactic acids and other hydroxycarboxylic acids as a main component, preforming the composition and thereafter molding the container in a temperature range from Tg to Tg+60.degree. C. on the basis of the glass transition temperature Tg of the thermoplastic polymer composition and under the condition of a draw ratio of 6 times or less.

REFERENCES:
patent: 3797499 (1974-03-01), Schneider
patent: 5180765 (1993-01-01), Sinclair
patent: 5191037 (1993-03-01), Doi et al.
patent: 5206341 (1993-04-01), Ibay et al.

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