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, 1980
Filed:
Mar. 30, 1979
Applicant:
Inventor:
Brian N Hendy, Welwyn, GB;
Assignee:
Imperial Chemical Industries Limited, London, GB;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B32B / ;
U.S. Cl.
CPC ...
428520 ; 252-88 ; 252-875 ; 428910 ; 428516 ;
Abstract
Oriented polyolefin (especially polypropylene) film having antistatic properties is produced by applying to the cast extrudate an aqueous solution of an `Ethoquad` salt (e.g. `Ethoquad` C/12) before heating and stretching the extrudate to orient it. The corresponding tertiary amine chlorides (e.g. prepared from `Ethomeen` T/12) are not effective.