International Business Machines Corporation

Stephen Anthony Shear

Krishna Gandhi Sachdev

Mitchell S Cohen

Keith S Pennington

Morris Anschel

Improved electroerosion recording media are described in which ablatable polymers are used in the electroerosion recording medium. This medium includes at least a substrate or support layer, a base layer which protects the substrate, a thin film of conductive material on the base layer and which can be eroded, and a protective overcoat layer. Ablatable polymers are used as binders in either the base layer or the top protective layer, or both, in order to provide advantages during electroerosion. These ablatable polymers undergo thermally induced depolymerization in such a way that the result is the formation of volatile monomeric or low molecular weight species as the predominant products, with little or no adherent residue.

Electroerosion printing media using depolymerizable polymer coatings

A catalyst solution for making surfaces receptive to the deposition of adherent electroless metal layers includes a complex of a precious metal salt with dimethyl sulfoxide such as, for example, Pd Cl.sub.2 . 2(CH.sub.3).sub.2 SO together with a group IV metal salt such as, for example, stannous chloride. A process for rendering surfaces, such as glass, receptive to adherent electroless metal layers using the catalyst solution is also provided.

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Greenfield Park, NY, United States of America

Stephen Anthony Shear