Branched additives for polymer toughening

US10494485B2 · kind B2 · utility

Assignee

• The United States of America as represented by the Secretary of the Army · US

Inventors

• Randy A. Mrozek · Port Deposit, US
• Joseph L. Lenhart · Port Deposit, US
• Robert H. Lambeth · Elkwood Estates, US
• Jan W. Andzelm · North East, US

Key dates

• Filing date: Nov 9, 2015
• Grant date: Dec 3, 2019
• Expiry date: Oct 4, 2036

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08L83/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Toughened polymeric materials and methods of forming toughened polymeric materials are provided herein. In some embodiments, a method of forming toughened polymeric materials may include preparing a branched polymeric additive; mixing the branched polymeric additive with a polymer to form a polymeric mixture, wherein the branched polymeric molecule either mixes and/or bonds with the polymer to reduce mobility in the polymer; and curing the polymeric mixture. In some embodiments, a toughened polymeric material comprises a polymer network; and a branched polymeric molecule bonded to the polymer network.