Printer Friendly

Crosslinked elastic material formed from a branched block copolymer.

Crosslinked Elastic Material Formed From A Branched Block Copolymer: No. 7,923,392 B2; Oomman Thomas, assignor to Kimberly-Clark Worldwide, Inc., Neenah, WI

Filed 10/16/2007. Issued 4/12/2011.

Patented recently is an elastic material for use in an absorbent article is provided. The elastic material contains a crosslinked network formed from a branched block copolymer having a monoalkenyl aromatic midblock positioned between conjugated diene endblocks (e.g., butadiene-styrene-butadiene ("B-S-B") triblock copolymer). Prior to crosslinking, the branched block copolymers have a relatively low viscosity and thus may be readily formed into a precursor elastic material (e.g., film, strands, web, etc.) that is subsequently crosslinked to achieve the desired elastic and mechanical properties. Crosslinking is typically achieved through the formation of free radicals (unpaired electrons) that link together to form a plurality of carbon-carbon covalent bonds at the conjugated diene endblocks.
COPYRIGHT 2011 Rodman Publishing
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2011 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:Patent Review
Publication:Nonwovens Industry
Date:Jun 1, 2011
Previous Article:Absorbent articles comprising high permeability superabsorbent polymer compositions.
Next Article:Nonwoven web material containing crosslinked elastic component formed from a pentablock copolymer.

Terms of use | Privacy policy | Copyright © 2021 Farlex, Inc. | Feedback | For webmasters |