Back to results
US 7,008,983 B2Granted
Hydrolysis resistant polyester compositions and related articles and methods
AssigneeE. I. Du Pont de Nemours and Company
InventorsWilliam E. Garrison, James Michael McKenna
Life of this patent
Estimating the term…
Abstract
Polymer compositions comprising polyester, boron component, and epoxy component. Articles made from these compositions, particularly articles requiring excellent hydrolysis resistance properties.
Claims9
A polymer composition comprising the product that results from the melt phase reaction under shear of:
- a polyester;
- a boron component, comprising an alkalimetal borate in an amount greater than 0.02 and less than 0.3 weight percent of said composition, and
- an epoxy component, in an amount sufficient to provide about 5 to 500 milliequivalents of total epoxy function per kilogram of said polyester.
Dependencies are inferred from the claim text.