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:
Jul. 21, 1998
Filed:
May. 27, 1997
Hideki Tomozawa, Chiba, JP;
Yoshihiro Saida, Chiba, JP;
Junya Kato, Chiba, JP;
Yukie Akakabe, Tokyo, JP;
Yoshiaki Ikenoue, Chiba, JP;
Reiko Ichikawa, Osaka, JP;
Showa Denko K.K., Tokyo, JP;
Abstract
An antistatic agent comprising a water-soluble electroconductive polymer comprising at least a repeating unit having a sulfo group-containing isothianaphthenylene structure; a method for suppressing electrification of an article during the production or use of the article by forming an electroconductive film comprising the water-soluble electroconductive polymer on the article; an article of which electrification is suppressed by having an electroconductive film comprising the water-soluble conductive polymer on the article; and a method for observing or inspecting an article with suppressing electrification thereof during irradiation with charged particle beams by forming an electroconductive film comprising the water-soluble electroconductive polymer on the article. The electroconductive film retains the electrification-suppressing effect and removability stably even when subjected to a heat treatment or left to stand for a long period of time. The antistatic agent can be formulated into a film-forming antistatic composition which can be used at any pH value from acidic to basic and which is excellent in storage stability.