Process and product for making polyamides
AssigneeE. I. Du Pont de Nemours and Company
InventorGeorge Elias Zahr
Life of this patent
Estimating the term…
Abstract
Disclosed is a process for modifying polyamide polymers by attaching a substituted or unsubstituted 2-hydroxy-ethyl modifying group to the amide nitrogen atoms and the modified product formed. The process comprises contacting an epoxy containing molecule with diamine/diacid salt and/or an amino-acid of a hydrolyzed lactam or lactam to form a modified polyamide.
Claims24
A process comprising contacting an epoxy containing modifier with a diamine/diacid salt and/or an amino-acid of a hydrolyzed lactam or lactam to form a polyamide.
A process comprising contacting an epoxy modifier with diamine, then contacting the resulting diamine with diacid and/or lactam to form a polyamide.
A polyamide having substituted or unsubstituted 2-hydroxy-ethyl groups pendant from the amide nitrogen.
Dependencies are inferred from the claim text.