Patent · US Expired

Method and apparatus for the continuous corona discharge treatment of the surface of formed articles

US4724508A · kind A · utility

12Cited by
3References
37Claims
0Family size

Assignee

Inventor

Key dates

Filing dateDec 18, 1985
Grant dateFeb 9, 1988
Priority date
Expiry dateDec 18, 2005

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29C59/103
  • WIPO fieldElectrical machinery, apparatus, energy
  • WIPO sectorElectrical engineering

Abstract

A method and apparatus for treating the surface of a formed plastic article comprises creating an ionized field and causing air to flow through the field. A formed plastic article is moved through the field and the airflow so that the ionized field circumscribes the peripheral surface of the article to cause the molecular structure of the surface of the article to be modified. Articles made in accordance with the above method also fall within the purview of the invention.

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