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Title: 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):
5,563,238
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 = {1996},
month = {10}
}