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. 15, 1988
Filed:
Dec. 10, 1986
Applicant:
Inventors:
Frank T Kitchel, Hanover Park, IL (US);
R Sven Solvik, Barrington, IL (US);
Michael L Opacich, Hoffman Estates, IL (US);
Assignee:
Enron Chemical Company, Cincinnati, OH (US);
Primary Examiner:
Int. Cl.
CPC ...
B29C / ;
U.S. Cl.
CPC ...
264564 ; 264130 ; 264211 ; 523200 ;
Abstract
A method is disclosed for improving the clarity of polyethylene film containing silica or diatomaceous earth as an anti-blocking agent. The method comprises treating the anti-blocking agent with polyethylene glycol such that sufficient polyethylene glycol is deposited on said anti-blocking agents such that at least 10 parts per million of polyethylene glycol is present in the final blend. Next, the treated anti-blocking agent is added to the polyethylene resin and this blend is formed into a film.