Poly(3-hydroxyalkanoates)

Details Poly(3-hydroxyalkanoates) Poly(3-hydroxyalkanoates)

1994-01-21

1995-02-21

Kight, III, John

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

Synthetic resins

From carboxylic acid or derivative thereof

528361, C08G 6308

Patent

active

053917081

ABSTRACT:
Novel poly(3-hydroxyalkanoates), such as poly(3-hydroxybutyrate), and blends of these with other polymers are disclosed. A novel process for producing these poly(3-hydroxyalkanoates) is also disclosed which entails polymerizing one or more .beta.-substituted-.beta.-propiolactone(s) under polymerization conditions in the substantial absence of water in the presence of an anionic initiator.

REFERENCES:
patent: 5138029 (1992-08-01), Nishioka et al.
J. Shelton, J. Lando, D. Agostini, "Synthesis and Characterization of Poly(.beta.-Hydroxybutyrate)", Polymer Letters, 1971, pp. 173-178.
D. Agostini et al. "Synthesis and Characterization of Poly-.beta.-Hydroxybutyrate . . . " Journal of Polymer Science, 1971, pp. 2775-2787.
R. Lenz, "Stereoregular Poly-.beta.-hydroxyalkanoates . . . " Polymer Preprints, 1989, pp. 416-417.

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