Patent · US Expired

Process for passing a hydrophobic substrate through a corona discharge zone and simultaneously introducing an adhesive promoting aerosol

US5271970A · kind A · utility

7Cited by

4References

5Claims

0Family size

Assignee

Hoechst GmbH · DE

Inventors

John D. Gribbin · Schlangenbad, DE
Lothar Bothe · Mainz, DE
Peter Dinter · Obermoschel, DE

Key dates

Filing date	May 4, 1992
Grant date	Dec 21, 1993
Priority date	—
Expiry date	May 4, 2012

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB05D2201/00
WIPO fieldElectrical machinery, apparatus, energy
WIPO sectorElectrical engineering

Abstract

A polymeric sheet structure consists of an adhesion-promoting coating on at least one surface of the substrate. The adhesion-improving coating is produced by treating this substrate surface with an electrical corona discharge between high voltage electrodes and a grounded counter-electrode while simultaneously spraying an aerosol into the corona discharge zone. The aerosol contains, for example, an aqueous emulsion of thermoplastic and/or crosslinkable components as an adhesion-promoting agent.

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