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:
Jun. 07, 1988
Filed:
Jul. 20, 1987
Applicant:
Inventors:
Royce E Ennis, Beaumont, TX (US);
Wolfgang Honsberg, Wilmington, DE (US);
Assignee:
E. I. Du Pont de Nemours and Company, Wilmington, DE (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08L / ;
U.S. Cl.
CPC ...
525192 ; 525194 ; 525240 ; 5253341 ;
Abstract
A process is disclosed for producing a blend of chlorinated low density polyethylene and chlorinated high density polyethylene wherein the polyethylenes are placed in a solvent and the temperature raised to a point where the low density polyethylene goes into solution and the high density polyethylene does not go into solution. The low density polyethylene is chlorinated up to the desired level and then the temperature is raised to dissolve the high density polyethylene and chlorination of both polyethylenes is continued to the desired level.