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US 5,395,919 AGranted
Poly-.beta.-hydroxy alkanoate (PHA) copolymer, method of its production, the microbe which produces it, and PHA copolymer blend
AssigneeKOHAP, Ltd.
InventorsYang-Gul Lee, Guhn-Been Yim
Life of this patent
Estimating the term…
Abstract
A new poly-.beta.-hydroxy alkanoate (PHA) copolymer is produced in the cell of Pseudomonas cepacia KYG-505 (KCCM 10004) and a variety of polymer blends of PHB and PHA are developed, The PHA copolymer can improve the properties of known PHB through blending and, having double bonds on some of its side chains, exhibits capabilities for organic synthesis, whereby it useful in production of polymers with various properties and biodegradability.
Claims9
A poly-.beta.-hydroxy alkanoate (PHA) copolymer having a mean molecular weight of at least 10,000 and comprising monomers of the formulae:
- ##STR16## wherein n is an integer selected from the group consisting of 2, 4, 6, 8 and 10 and m is an integer selected from the group consisting of 0, 2, 4, 6 and 8.
Dependencies are inferred from the claim text.