Patent · US Expired

Process and apparatus for the surface treatment of sheet-like structures by electric corona discharge

US5135724A · kind A · utility

16Cited by

12References

6Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

Peter Dinter · Obermoschel, DE
Hermann D. Funke · Bonn, DE
Klaus Matschke · Altötting, DE

Key dates

Filing date	Apr 10, 1991
Grant date	Aug 4, 1992
Priority date	—
Expiry date	Apr 10, 2011

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB29C59/12
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

The process of the present invention is for the surface treatment on both sides of a substrate by means of electric corona discharge, while simultaneously treating both surfaces of the substrate with a carrier gas/aerosol mixture introduced into the corona discharge zone. The arrangement for carrying out this process comprises a corona discharge device, consisting of a generator, high voltage electrodes, to which alternating current is applied by the generator, as well as grounded counter electrodes, a device for the atomization of liquid into a suspendable aerosol, which is connected via a transport line for the aerosol to the corona discharge device, and a blower, which is connected to the atomizer device and conveys the carrier gas/aerosol mixture to the corona discharge device. The electrodes and counter electrodes together form a gap for the substrate to be treated.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.