Water and UV degradable lactic acid polymers
Abstract
A water and UV light degradable copolymer is described made from monomers of lactic acid and a modifying monomer selected from the class consisting of ethylene glycol, propylene glycol, P-dioxanone, 1,5 dioxepan-2-one, 1,4-oxathialan-2-one, 1,4-dioxide and mixtures thereof. These copolymers are useful for waste disposal and agricultural purposes. Also disclosed is a water degradable blend of polylactic acid or modified polylactic acid and high molecular weight polyethylene oxide wherein the high molecular weight polyethylene oxide is present in the range of from about 2 by weight to about 50% by weight, suitable for films. A method of applying an active material selected from the class of seeds, seedlings, pesticides, herbicides, fertilizers and mixtures thereof to an agricultural site is also disclosed.
- Inventors:
- Issue Date:
- Research Org.:
- Univ. of Chicago, IL (United States)
- OSTI Identifier:
- 379930
- Patent Number(s):
- 5563238
- Application Number:
- PAN: 8-328,803
- Assignee:
- ARCH Development Corp., Chicago, IL (United States)
- DOE Contract Number:
- W-31109-ENG-38
- Resource Type:
- Patent
- Resource Relation:
- Other Information: PBD: 8 Oct 1996
- Country of Publication:
- United States
- Language:
- English
- Subject:
- 40 CHEMISTRY; 54 ENVIRONMENTAL SCIENCES; COPOLYMERS; CHEMICAL COMPOSITION; BIODEGRADATION; USES; MATRIX MATERIALS; BIOMASS PLANTATIONS; SANITARY LANDFILLS; HYDROXY ACIDS; GLYCOLS; HYDROLYSIS; ULTRAVIOLET RADIATION; PHOTOLYSIS
Citation Formats
Bonsignore, P V, and Coleman, R D. Water and UV degradable lactic acid polymers. United States: N. p., 1996.
Web.
Bonsignore, P V, & Coleman, R D. Water and UV degradable lactic acid polymers. United States.
Bonsignore, P V, and Coleman, R D. Tue .
"Water and UV degradable lactic acid polymers". United States.
@article{osti_379930,
title = {Water and UV degradable lactic acid polymers},
author = {Bonsignore, P V and Coleman, R D},
abstractNote = {A water and UV light degradable copolymer is described made from monomers of lactic acid and a modifying monomer selected from the class consisting of ethylene glycol, propylene glycol, P-dioxanone, 1,5 dioxepan-2-one, 1,4-oxathialan-2-one, 1,4-dioxide and mixtures thereof. These copolymers are useful for waste disposal and agricultural purposes. Also disclosed is a water degradable blend of polylactic acid or modified polylactic acid and high molecular weight polyethylene oxide wherein the high molecular weight polyethylene oxide is present in the range of from about 2 by weight to about 50% by weight, suitable for films. A method of applying an active material selected from the class of seeds, seedlings, pesticides, herbicides, fertilizers and mixtures thereof to an agricultural site is also disclosed.},
doi = {},
journal = {},
number = ,
volume = ,
place = {United States},
year = {Tue Oct 08 00:00:00 EDT 1996},
month = {Tue Oct 08 00:00:00 EDT 1996}
}