Institut Francais Du Pe'trole

Franscois Grosjean

Michel Huvey

Lucien Montabord

Described are engravable coating compositions, in particular for printing cylinders, which comprise at least one resin capable of undergoing coking and producing only a very small proportion of products which are liquid at the temperature at which it decomposes, the main products of decomposition thereof being solid or gaseous at that temperature; and in general a reinforcing particulate filler having a small proportion of edges having acute projecting angles, said filler generally representing a proportion of from 5 to 75% of the resin+filler volume. The process for coating the cylinders comprises: mixing the resin and the filler and degassing the mixture produced; the coating operation in the true sense and drying the layer or successive layers deposited; and baking the coating.

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Versailles, France

Franscois Grosjean