IP Library Granted Patent US 8,445,569
Granted Patent B2
US 8,445,569 · App. 13/198,826 · Granted May 21, 2013

Salt resistant polyamide compositions

Inventor: Georgios Topoulos (Meyrin, CH)
Assignee: E I du Pont de Nemours and Company
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Quick Facts
Patent No.
US 8,445,569
App. No.
13/198,826
Granted
May 21, 2013
Kind
B2
Abstract

Disclosed is a thermoplastic composition including: a) 20 to 35 weight percent poly(decamethylene decanediamide), b) 50 to 65 weight percent poly(hexamethylene decanediamide), and c) 8 to 15 weight percent of sulfonamide plasticizer. wherein the sulfonamide plasticizer is one or more sulfonamides selected from the group consisting of N-butylbenzenesulfonamide, N-(2-hydroxypropyl)benzenesulfonamide, N-ethyl-o-toluenesulfonamide, N-ethyl-p-toluenesulfonamide, o-toluenesulfonamide, and p-toluenesulfonamideone.

Claims (7)

1. A thermoplastic composition consisting essentially of:

a) 25 to 35 weight percent poly(decamethylene decanediamide),

b) 55 to 65 weight percent poly(hexamethylene decanediamide), and

c) 8 to 15 weight percent of sulfonamide plasticizer,

wherein the sulfonamide plasticizer is one or more sulfonamides selected from the group consisting of N-butylbenzenesulfonamide, N-(2-hydroxypropyl)benzenesulfonamide, N-ethyl-o-toluenesulfonamide, N-ethyl-p-toluenesulfonamide, o-toluenesulfonamide, and p-toluenesulfonamideone.

2. The thermoplastic composition of claim 1 wherein the sulfonamide plasticizer is N-butylbenzenesulfonamide.

3. A molded or extruded thermoplastic article comprising the thermoplastic composition of claim 1 .

Assignments (2)
CHANGE OF NAME Recorded Feb 11, 2026
From: DUPONT POLYMERS, INC.
To: CELANESE POLYMERS HOLDING, INC.
Reel/Frame 074734/0498 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Jun 26, 2019
From: E. I. DU PONT DE NEMOURS AND COMPANY
To: DUPONT POLYMERS, INC.
Reel/Frame 049590/0650 →
Continuity (2)
Provisional Application 61374356 · Aug 17, 2010
Related Publication 20120046398A1 · Feb 23, 2012