Coupled Esters of polylactic acid and coupled esters of polyglycolic acid and compositions thereof
AssigneesJeffrey T. Langley, Fashion Chemicals GmbH & Co. KG
InventorsJeffrey T. Langley, Kay M. McCoy, Paul C. Meredith, Philip F. Sims
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Abstract
Esters of polylactic acid, including polyethylene glycol esters of polylactic acid, that are coupled with an acid are disclosed. Exemplary coupled esters of polylactic acid can be used as textile finishes. Methods of making the coupled esters of polylactic acid via direct and/or transesterification reactions are also disclosed.
Claims8
A material to which a composition comprising at least one coupled ester of polylactic acid is applied, wherein the at least one coupled ester of polylactic acid is a chemical compound, wherein the chemical compound comprises the reaction product of:
- polyethylene glycol;
- a dicarboxylic acid as a coupler;
- and
- polylactic acid,
- wherein the compound has a weight-average molecular weight of less than 2000 daltons,
- wherein the composition is a soil-release formulation,
- wherein the composition comprises a fluorine-based compound, and
- wherein the material is a nonwoven textile, a woven textile or a knitted textile, and wherein the weight-percent ratio of the polyethylene glycol to the polylactic acid is between 65:35 and 35:65.
Dependencies are inferred from the claim text.