Patent ID: 6156815
Filing Date: 2000-12-05
Classification: C08K,G03F

Abstract:
A process for curing an acid-curable binder system, which system comprises at least a melamine- or urea-based synthetic resin material which is capable of acid-catalyzed polycondensation, which process comprisesadding to said system an effective amount of at least one compound of formula IR.sup.1 --SO.sub.2 --SO.sub.2 --R.sup.2wherein R.sup.1 and R.sup.2 are identical or different and are alkyl, cycloalkyl, aryl, aralkyl or heteroaryl having up to 12 carbon atoms, optionally monosubstituted or polysubstituted by halogen, cyano, nitro, alkyl, alkoxy, alkylthio, mono- or bis-alkylamino, alkanoyl, acyloxy, acylamido, alkoxycarbonyl, alkylaminocarbonyl, alkylsulfoxy, alkylsulfonyl, aryloxy, arylthio, arylsulfoxy or arylsulfonyl, each having up to 6 carbon atoms, and thencuring said system by irradiating with ultraviolet light of a wavelength of between 200 and 450 nm, by heating or by a combination of irradiating and heating.