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Title: Water and UV degradable lactic acid polymers

Abstract

A water and UV light degradable copolymer of monomers of lactic acid and a modifying monomer selected from the class consisting of ethylene and polyethylene glycols, propylene and polypropylene glycols, 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:
 [1];  [2]
  1. Joliet, IL
  2. Wheaton, IL
Issue Date:
Research Org.:
Argonne National Laboratory (ANL), Argonne, IL (United States)
OSTI Identifier:
869589
Patent Number(s):
5360892
Assignee:
Arch Development Corporation (Chicago, IL)
Patent Classifications (CPCs):
A - HUMAN NECESSITIES A01 - AGRICULTURE A01N - PRESERVATION OF BODIES OF HUMANS OR ANIMALS OR PLANTS OR PARTS THEREOF
C - CHEMISTRY C05 - FERTILISERS C05F - ORGANIC FERTILISERS NOT COVERED BY SUBCLASSES C05B, C05C, e.g. FERTILISERS FROM WASTE OR REFUSE {
DOE Contract Number:  
W-31109-ENG-38
Resource Type:
Patent
Country of Publication:
United States
Language:
English
Subject:
water; degradable; lactic; acid; polymers; light; copolymer; monomers; modifying; monomer; selected; consisting; ethylene; polyethylene; glycols; propylene; polypropylene; p-dioxanone; dioxepan-2-one; -oxathialan-2-one; 4-dioxide; mixtures; copolymers; useful; waste; disposal; agricultural; purposes; disclosed; blend; polylactic; modified; molecular; weight; oxide; range; 50; suitable; films; method; applying; active; material; seeds; seedlings; pesticides; herbicides; fertilizers; site; acid polymer; propylene glycol; polylactic acid; ethylene glycol; waste disposal; polyethylene glycol; lactic acid; active material; molecular weight; material selected; polyethylene oxide; weight poly; monomer selected; polyethylene glycols; modifying monomer; light degradable; acid polymers; degradable copolymer; degradable lactic; /528/424/525/

Citation Formats

Bonsignore, Patrick V, and Coleman, Robert D. Water and UV degradable lactic acid polymers. United States: N. p., 1994. Web.
Bonsignore, Patrick V, & Coleman, Robert D. Water and UV degradable lactic acid polymers. United States.
Bonsignore, Patrick V, and Coleman, Robert D. Sat . "Water and UV degradable lactic acid polymers". United States. https://www.osti.gov/servlets/purl/869589.
@article{osti_869589,
title = {Water and UV degradable lactic acid polymers},
author = {Bonsignore, Patrick V and Coleman, Robert D},
abstractNote = {A water and UV light degradable copolymer of monomers of lactic acid and a modifying monomer selected from the class consisting of ethylene and polyethylene glycols, propylene and polypropylene glycols, 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 = {Sat Jan 01 00:00:00 EST 1994},
month = {Sat Jan 01 00:00:00 EST 1994}
}

Works referenced in this record:

Bioabsorbable Fibers of p-Dioxanone Copolymers
book, July 1990


Biodegradable PEO/PLA block copolymers
journal, November 1988


The role of hydroperoxides in the photo-oxidation of crosslinked polymer coatings
journal, January 1991


On the kinetics of polymer degradation in solution: Part XI—Radiolysis of poly(olefin sulfones)
journal, January 1984


Polyesters derived from 1,4-oxathian-2-ones
journal, March 1985


Rapidly degraded terpolymers of DL-lactide, glycolide, and ?-caprolactone with increased hydrophilicity by copolymerization with polyethers
journal, October 1990