Patent · US Expired

Coating plate cylinders or sleeves with a continuous, seamless photosensitive layer

US4871650A · kind A · utility

9Cited by

7References

8Claims

0Family size

Assignee

BASF SE

Inventors

Guenter Wallbillich · Schifferstadt, DE
Jan H. Van Heuvelen · Losser, NL

Key dates

Filing date	Feb 9, 1988
Grant date	Oct 3, 1989
Priority date	—
Expiry date	Feb 9, 2008

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY10S430/136
WIPO fieldOptics
WIPO sectorInstruments

Abstract

For coating printing cylinders or sleeves with a seamless, smooth photosensitive layer, two or more strata of a thin, prefabricated, essentially solvent-free, unsupported, thermoplastically processible, solid, photosensitive layer are applied to the printing cylinder or the sleeve, without bubbles and with displacement of the air between the individual strata, and the total photosensitive layer material is then heated under pressure and with joining or fusion of the individual strata to form a single, continuous photosensitive layer, and the surface of the resulting photosensitive layer is aftertreated to shape it exactly to size and is smoothed, with formation of an exactly cylindrical shape.

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