Patent · US Expired

Method and apparatus for the recovery of spraying substance when spraying elongated rolled stock

US4520047A · kind A · utility

4Cited by

3References

3Claims

0Family size

Assignee

Mannesmann AG · DE

Inventors

Herbert Hillemanns · Ratingen, DE
Robert Samans · Düsseldorf, DE
Walter Meyer · Bonndorf, DE

Key dates

Filing date	Apr 21, 1982
Grant date	May 28, 1985
Priority date	—
Expiry date	Apr 21, 2002

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02P70/10
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

The invention relates to a method and an apparatus for the recovery of spraying substance when spraying elongated rolled stock. Difficulties are met when trying to recover water-dilutable or water-soluble coating agents since after evaporation of the solvent, i.e. the water, the film which is left can no longer be dissolved by water and thus it is no longer possible to recover this fraction of the spraying substance. According to the invention, therefore, it is proposed to carry out the spraying in a water-saturated atmosphere so that the excess spraying substance can easily be recovered. The apparatus is appropriately constructed to correspond to these circumstances.

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