Printer Friendly

Tough & strong polyamides.

U.S. Patent 9,056,982 (June 16, 2015), 'Thermoplastic Composition for Use in High Impact Applications," Rajeev S. Bhatia (Invista North America S.A.R.L., Wilmington, Delaware, USA).

Nylon polymers are desirable in many applications due to their outstanding elasticity, dye-fastness, and high melting point. Often these resins are reinforced with impact modifiers and reinforcements. However, improving the impact strength of a resin composition with commercially available modifiers generally results in a proportional decrease in tensile strength. There's a need for compositions with increased impact strengths without reduced tensile strengths.

Bhatia developed a thermoplastic nylon consisting of 50-99 wt% nylon-66 resin, 1-50 wt% impact modifier, and 0.01-25 wt% ultrahigh molecular weight silicone. The silicone additive improves toughness while keeping an ultimate tensile strength that's at least 80% of the material without the silicone. The silicone is immobile in the continuous phase of the polyamide.

COPYRIGHT 2015 Society of Plastics Engineers, Inc.
No portion of this article can be reproduced without the express written permission from the copyright holder.
Copyright 2015 Gale, Cengage Learning. All rights reserved.

Article Details
Printer friendly Cite/link Email Feedback
Title Annotation:INDUSTRY PATENTS; patent received
Author:Corneliussen, Roger
Publication:Plastics Engineering
Article Type:Brief article
Date:Sep 1, 2015
Previous Article:Uniform micro-beads.
Next Article:Functional polyurethanes.

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