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:
Feb. 16, 1999
Filed:
Mar. 09, 1994
Applicant:
Inventors:
Jorg Dahringer, Bobingen, DE;
Werner Groh, Lich, DE;
Hans-Tobias Macholdt, Darmstadt, DE;
Peter Boening, Wiesbaden, DE;
Assignee:
Hiecgst Aktiengesellshat, , DE;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
C08G / ; D02G / ;
U.S. Cl.
CPC ...
428378 ; 428357 ; 428364 ; 428402 ;
Abstract
Electret fibers having improved charge stability are described which are composed of a material which predominantly contains a fiber-forming polymer or polycondensate and 0.01 to 30% by weight (preferably 0.01 to 10, in particular 0.1 to 5%, by weight), based on the weight of the material, of organic or organometallic charge control compounds, as contained in toners for electrophotographic processes, and a process for the production thereof. In addition, textile materials containing these electret fibers are described.