EP 0666188 A1 19950809 - Method of etching stone materials.
Title (en)
Method of etching stone materials.
Title (de)
Verfahren zum Ätzen von Steinen.
Title (fr)
Procédé de gravure de pierres.
Publication
Application
Priority
EP 94200259 A 19940204
Abstract (en)
The present invention relates to a method of engraving stone which comprises the steps of; applying to a stone material an acid resistant polymer or lacquer coating upon portions of said stone material that are not to be engraved; bathing the coated stone material with a sufficient amount of acid for a sufficient period of time to engrave said stone material; washing the stone material with a sufficient amount of base to neutralize the acid; and, removing the coating to obtain an engraved stone material. In particular the present invention relates to methods of engraving marble or onyx using nitric acid, hydrochloric acid or hydrofluoric acids.
IPC 1-7
IPC 8 full level
CPC (source: EP)
B44C 1/227 (2013.01); B44C 5/06 (2013.01)
Citation (search report)
- [XA] US 3811909 A 19740521 - BERTSCH H
- [X] FR 2285253 A1 19760416 - MALAVASI CARLO [IT]
- [A] DE 2731219 A1 19790118 - ALARI MARCO
Designated contracting state (EPC)
ES GR IT PT
DOCDB simple family (publication)
DOCDB simple family (application)
EP 94200259 A 19940204