Random elastomeric copolyesters

Details Random elastomeric copolyesters Random elastomeric copolyesters

1981-11-17

1983-06-07

Nielsen, Earl A.

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

Synthetic resins

From carboxylic acid or derivative thereof

528301, C08G 6348, C08G 6318, C08G 6354

Patent

active

RE0312703

ABSTRACT:
This invention relates to random linear copolyesters containing units of terephthalic acid, butane diol, polytetramethylene glycol and dimer acid. The copolymers are elastic materials and can be made into films, fibers and molded products.

REFERENCES:
patent: 3235520 (1966-02-01), Crowell
patent: 3383343 (1968-05-01), Mohajer et al.
patent: 3390108 (1968-06-01), Keck et al.
patent: 3391073 (1976-01-01), Jackson et al.
patent: 3795644 (1974-03-01), Jackson et al.
patent: 3915913 (1975-10-01), Jackson et al.
patent: 4254001 (1981-03-01), Tung
528 295.3;301
Hoeschle, "Thermostable Polyester Block Copolymers", Die Angewandte Makromolekular Chemie 58/59:299-319 (1977).

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