Thermoplastic block copolyesters capable of being composted for

Details Thermoplastic block copolyesters capable of being composted for Thermoplastic block copolyesters capable of being composted for

1994-08-08

1995-10-03

Buttner, David

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

Synthetic resins

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

525466, 525425, 525440, C08G 8100, C08G 6364, C08G 6944

Patent

active

054553113

ABSTRACT:
The object of the present invention is the production of thermoplastically workable copolymers capable of being composted, characterized in that they consist of partially crystalline soft segments formed from aliphatic esters and also of amorphous hard segments and that the proportion of soft segments amounts to 70% to 95% by weight.

REFERENCES:
patent: 3161615 (1964-12-01), Goldberg
patent: 3287442 (1966-11-01), Caldwell et al.
patent: 3843708 (1974-10-01), Matzner
patent: 4129715 (1978-12-01), Chen
patent: 4169868 (1979-10-01), Schreckenberg et al.
Merrill, "Block Copolymers Based on 2,2-bis(4-Hydroxyphenyl)-propane Polycarbonate" Journal of Polymer Science, vol. 55, pp. 343-352 (1961).
Allport et al., "Property-Structure Relationships in Polyurethane Block Copolymers", Block Copolymers, Applied Science Publishers, Ltd, pp. 442-492 (1973).
Patent abstracts of Japan, vol. 003, No. 142 (C-065), Nov. 24, 1979 and JP-A-54119594 (Kogyo Gijutsuin) Sep. 17, 1979.

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