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:
Apr. 04, 1989
Filed:
Jul. 30, 1987
Applicant:
Inventor:
Thomas C Bissot, Newark, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08K / ; C08K / ; C08K / ;
U.S. Cl.
CPC ...
524413 ; 524441 ; 524449 ; 524503 ;
Abstract
A barrier resin composition is disclosed which contains 50 to 95 weight percent ethylene/vinyl alcohol copolymer having a melt flow of 0.1 to 100 g/10 minutes as measured at 210.degree. C. and 50 to 5 weight percent mica having a particle size of less than 74 microns and an aspect ratio of from 10 to 150. The composition can be prepared by melt blending a mixture of the ethylene/vinyl alcohol copolymer and the mica. Alternatively, the composition can be prepared by forming a dispersion of this mica in a solution of the ethylene/vinyl alcohol copolymer followed by precipitating the ethylene/vinyl alcohol copolymer.