INHIBITION OF OVERGROWING Russian patent published in 2003 - IPC

FIELD: chemical technology. SUBSTANCE: invention describes inhibition of substrate overgrowing in the overgrowing medium. Method involves shaping a coating on substrate before effect of indicated coating medium. Coating comprises a film-forming polymer (A) carrying unreacted silicon-containing functional groups able for hardening and providing the latent reaction capacity followed by application of a layer containing hardening polymeric material (B) inhibiting the overgrowing, to polysiloxane to be hardened or hardening fluoro-containing polymer and binding the applied layer with indicated coating by the condensation hardening reaction where unreacted functional groups in its take part. The initial coating can be applied above some outworn or damaged anti- -overgrowing coatings, the successive application of layers is to be more simple, more flexible and more controlled procedure and invention provides the achievement of relatively prolonged periods of latency. EFFECT: improved inhibitory effect. 30 cl