Mixture of predominantly one polyhydroxyalkanoate and a compound

Details Mixture of predominantly one polyhydroxyalkanoate and a compound Mixture of predominantly one polyhydroxyalkanoate and a compound

1991-11-19

1993-07-27

Kight, III, John

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

Synthetic resins

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

435146, 525415, C08L 6704, C12P 742

Patent

active

052311481

ABSTRACT:
Mixture containing at least 70% by weight of polyhydroxyalkanoate and one or more compounds which contain reactive alcohol and/or acid groups, mixtures of poly-D (-)-3-hydroxybutyric acid with a polyether being excluded, process for the preparation of a polymer by melting the above mixture and a polymer in which at least some of the acid and/or alcohol groups of the polyhydroxyalkanoate are bonded via ester bonds to alcohol and/or acid groups of the admixed compound.

REFERENCES:
patent: 3182036 (1965-05-01), Baptist et al.
patent: 4786598 (1988-11-01), Lafferty et al.
patent: 4957861 (1990-09-01), Lafferty et al.
Bartnig et al., Prufung hochpolymerer Werkstoffe, Grundlagen und Prufmethoden, Carl Hanser Verlag, Munich-Vienna (1977).
MacKenzie et al., Differential Thermal Analysis, Academic Press, vol. 1, 1970 and vol. 2, 1972.

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