Patent · US Expired

Thermal printing head coating

US6028618A · kind A · utility

4Cited by

3References

10Claims

0Family size

Assignee

Agfa-Gevaert NV · BE

Inventors

Geert Defieuw · Kessel-Lo, BE
Raf Samijn · Wilrijk, BE
Johan Loccufier · Zwijnaarde, BE

Key dates

Filing date	Feb 4, 1998
Grant date	Feb 22, 2000
Priority date	—
Expiry date	Feb 4, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB41J2/3359
WIPO fieldTextile and paper machines
WIPO sectorMechanical engineering

Abstract

A thermal printing head comprising an outermost protective layer and a coating on the outermost surface of the outermost protective layer, wherein the coating comprises a hydrolyzed silane, the silane having the general formula: SiR.sup.1 R.sup.2 R.sup.3 R.sup.4 wherein R.sup.1, R.sup.2 and R.sup.3 are independently a C1 to C4 alkoxy group, a substituted C1 to C4 alkoxy group, bromine or chlorine; and R.sup.4 is a C1 to C4 alkyl group; a substituted C1 to C4 alkyl group, a C1 to C4 alkoxy group or a substituted C1 to C4 alkoxy group; a coating process therefor; and a thermographic printing process utilizing said coated thermal printing head.

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