Phosphorus based co-monomer for polyamides

US11015022B2 · kind B2 · utility

Assignee

• Performance Polyamides, SAS · FR

Inventors

• Gururajan Padmanaban · Vadodara, IN
• Kaustav Chakraborty · Thiruvananthapuram, IN
• Mayuri Shaiwale · Vadodara, IN
• Imani B. Jones · Alpharetta, US
• Keshav Gautam · Duluth, US

Key dates

• Filing date: Oct 13, 2017
• Grant date: May 25, 2021
• Expiry date: Nov 3, 2037

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08K3/013
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present disclosure relates to a polyamide comprising at least one repeating unit of formula I: —[OC—Ar—O—P(═O)(—Ar)—O—Ar—CO—NH—R—NH]— Formula (I) wherein, Ar is independently selected from the group consisting of aryl, arylene, heteroaryl and carbocyclic group; R represents a covalent bond or a divalent hydrocarbon-based group selected from the group consisting of saturated or unsaturated aliphatics, saturated or unsaturated cycloaliphatics, aromatics, arylaliphatics, and alkylaromatics.