.epsilon.-Caprolactone co-polyesters useful for the preparation

Details .epsilon.-Caprolactone co-polyesters useful for the preparation .epsilon.-Caprolactone co-polyesters useful for the preparation

1980-02-25

1983-11-15

Lieberman, Allan

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

Synthetic resins

From carboxylic acid or derivative thereof

520291, 520216, 520297, 520302, 528354, 528357, 525440, C08G 6314, C08G 6318, C08G 6334, C08L 6702

Patent

active

044157282

ABSTRACT:
The invention disclosed relates to novel .epsilon.-caprolactone co-polyesters which when combined with diisocyanates are useful as binders in solid urethane-type propellant formulations. Said co-polyesters are prepared by the reaction, in the presence of a catalyst, of epsilon-caprolactone, a diol (as a co-catalyst for the reaction) and a dicarboxylic acid.

REFERENCES:
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patent: 2977385 (1961-03-01), Fowler et al.
patent: 3654347 (1972-04-01), Kincaid et al.
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patent: 3682865 (1972-08-01), Jenkins et al.
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patent: 3806495 (1974-04-01), Schoen
patent: 4062887 (1977-12-01), Chang et al.
patent: 4086294 (1978-04-01), Koleske et al.
patent: 4130532 (1978-12-01), Lamb

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