Hydroxyalkanoate polymer composition

Details Hydroxyalkanoate polymer composition Hydroxyalkanoate polymer composition

1994-06-08

1996-05-14

Short, Patricia A.

Stock material or miscellaneous articles

Hollow or container type article

Polymer or resin containing

428 369, 428 3692, 523105, 523111, 523113, 524240, 524599, 525450, C08L 6704

Patent

active

055165656

ABSTRACT:
There is provided a highly biodegradable resin composition comprising a hydroxyalkanoate polymer and a crystallization nucleating agent. The resin composition may typically comprise a hydroxybutyrate homopolymer or a hydroxybutyrate-hydroxyvalerate copolymer and an aromatic amino acid. There is also provided a device prepared by using such a resin composition. The resin composition of the invention is capable of undergoing a crystallization at a high speed to provide the article molded therefrom with improved properties. The resin composition is also highly degradable in an animal body or in the environment.

REFERENCES:
patent: 4393167 (1981-11-01), Holmes et al.
patent: 4876331 (1988-08-01), Doi
patent: 4910145 (1989-06-01), Holmes et al.
patent: 5061743 (1990-05-01), Herring et al.
Miller et al., On the biodegradation of poly-.beta.-hydroxybutyrate (PHB) homopolymer and poly-.beta.-hydroxybutyrate-hydroxyvalerate copolymers, 1987, pp. 129-137.
Saito et al, In vivo and in vitro degradation of poly(3-hydroxybutyrate) in rat, 1991, pp. 309-312.
Malm et al., Prevention of postoperative pericardial adhesions by closure of the pericardium with absorbable polymer patches, 1992, pp. 600-607.

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