Blends of polyactic acid

Details Blends of polyactic acid Blends of polyactic acid

1990-09-06

1993-06-01

Short, Patricia A.

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

Synthetic resins

Processes of preparing a desired or intentional composition...

524310, 524317, 524320, 525186, 525386, 525411, 525437, C08L 6702, C08L 2304, C08L 2310, C08L 2504

Patent

active

052160505

ABSTRACT:
An environmentally degradable composition comprising blends of a physical mixture of poly(lactic acid), and a polymer selected from the group consisting of poly(ethylene terephthalate), a polymer or copolymer of styrene, ethylene, propylene, vinyl chloride, vinyl acetate, alkyl methacrylate, alkyl acrylate, and physical mixtures thereof; plasticized with D-lactic acid, L-lactic acid, racemic D,L-lactic acid, D-lactide, L-lactide, meso D,L-lactide, racemic, D,L-lactide, oligomers of lactic acid, oligomers of lactide, derivatives of oligomers of lactic acid, or various mixtures thereof.

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patent: 5076983 (1991-12-01), Loomis et al.
Biodegradable Materials of Poly(L-lactic acid): 1. Melt-spun and Solution-spun Fibres; Eling, B. et al; Polymer, vol. 23, Oct. 1982, pp. 1587-1593.
Porous Biomedical Materials Based on Mixtures of Polylactides and Polyurethanes; Gogolewski S., et al; Makromol. Chem. Rapid Commun., 3, 1982, pp. 839-845.
Microporous, compliant, biodegradable vascular grafts for the regeneration of the arterial wall in rat abdominal aorta; Van der Lei, B. et al; Surgery, 98, 1985, pp. 955-962.
Biodegradable PEO/PLA block copolymers; Cohn, Daniel et al; Journal of Biomedical Materials Research, vol. 22, pp. 993-1009 (1988).
Phase Separation in Poly(Ethylene Glycol)/Poly(Lactic Acid) Blends; Younes, H. et al; Eur. Polym. J. vol. 24, No. 8, 1988, pp. 765-773.
Survey of Polymer Blends Containing Poly(3-Hydroxybutyrate-co-16% Hydroxyvalerate); Dave, P. B. et al; Polymer Preprints, vol. 31, No. 1, Apr. 1990, pp. 442-443.
Novel Poly(d,l-Lactic Acid)--Ethylene/Vinyl Acetate Blends for Controlled Release Applications; Dollinger, H. M. et al; Polymer Preprints, vol. 31, No. 1, Apr. 1990, pp. 429-430.

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