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:
Jan. 16, 1990
Filed:
Sep. 30, 1988
Applicant:
Inventors:
Martinez J Jacobs, Geleen, NL;
Hendrickus J Rutten, Maastricht, NL;
Assignee:
Dyneema V.O.F., Sittard, NL;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C07C / ;
U.S. Cl.
CPC ...
204165 ; 42218605 ;
Abstract
An apparatus for the surface treatment of synthetic fibers or yarns, in particular of fibers and yarns of polyethylene of ultra-high molecular weight, for improvement of the adhesion, a corona is generated by means of two active electrodes (10, 12), between which the fibers or yarns are passed parallel to the longitudinal extent. The electrodes are designed with a surrounding insulating sheath. The current fed to the electrode (16) is phase-shifted by .phi.=180.degree. with respect to the current fed to the electrode (10).