Patent · US Expired

Process for coating surfaces made tacky beforehand

US5167989A · kind A · utility

93Cited by

11References

17Claims

0Family size

Assignee

E.I. DU PONT DE NEMOURS AND COMPANY · US

Inventors

Dietmar Dudek · Langen, DE
Reiner Stoll · Seligenstadt, DE
Thomas Pfeiffer · Kumhausen, DE
Robert W. Hooley · Wilmington, US

Key dates

Filing date	Oct 24, 1988
Grant date	Dec 1, 1992
Priority date	—
Expiry date	Oct 24, 2008

Classification

Technology area (CPC H)Electricity
CPC primaryH05K2203/0525
WIPO fieldSurface technology, coating
WIPO sectorChemistry

Abstract

Process for coating tacky surface areas of an object, e.g., polymer surfaces making tacky areas by irradiation, commprising bringing particulate coating material, e.g., pigments, metals, etc., into contact with the tacky surface areas, and removing excess particulate coating material particularly from non-tacky areas, the particulate coating material being compressed beyond its bulk density by continuous vibration for at least a part of the time the particulate coating material is in contact with the surface to be coated. The process is useful in the preparation of color TV screens, electrical circuits, etc.

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