MODIFIED AMINOPLASTIC SOLUTIONS

摘要

FIELD: chemistry.;SUBSTANCE: invention relates to modified aminoplastic solutions and is meant for applying an antistatic coating. An aqueous resins solution contains lithium sulphamate or hydrosulphite and at least one melamine-formaldehyde resin A. Resin A is selected from a group comprising modified melamine-formaldehyde resins A2, which are modified by sulphamate or sulphite groups, where at least part of the sulphamate or sulphite groups are bonded with the melamine-formaldehyde resin through a methylene (-CH₂-) bridge group or a methylene oxymethylene (-CH₂-O-CH₂-) bridge group, and melamine-formaldehyde resins A1, which are not modified with sulphamate or sulphate groups. The aqueous resins solution contains hardener C for concealed acid based resin. Said salt is present in at least one form selected from a group comprising products of (a) mixing and (b) co-condensation with at least one melamine-formaldehyde resin.;EFFECT: invention enables to obtain a moisture-resistant coating, which endows panels and wooden boards with lasting antistatic properties.;11 cl, 8 tbl, 11 ex