The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 18, 1997
Filed:
Aug. 26, 1996
Applicant:
Inventor:
Robert Benham Fish, Jr, Parkersburg, WV (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525183 ; 525919 ;
Abstract
An improved process for preparing thermoplastic polymer blends which contain at least 50% by weight of polyamide as a principal component with the remainder consisting essentially of an ionic polymer component which is derived from an olefin/acid copolymer in which the polyamide and the ionic polymer are combined into a uniform mixture via melt blending at high shear, and the improvement comprises simultaneously contacting the mixture while in the melt with one or more neutralizing basic metal compounds in an amount sufficient to neutralize from 100% up to 200% of the acid groups present in the ionic polymer component.