PHOTOACTIVATION METHOD AND USE OF CATALYST THROUGH INVERTED TWO-STAGE PROCEDURE Russian patent published in 2010 - IPC B01J35/00 B01J31/06 B01J31/02 G03F7/00 C07D487/00 C07D519/00 

FIELD: chemistry.

SUBSTANCE: invention relates to a method of photoactivation of a photocatalyst by irradiating a composition containing the said catalyst. The method of using a photolatent catalyst (a) in which a composition containing said catalyst is irradiated before subsequent treatment is characterised by that, the photolatent catalyst is: (a1) a compound selected from a group consisting of a photolatent acid, an aromatic iodonium salt or oxime-based photolatent acid; (a2) a photolatent base compound. Also described is a substrate on which a coating made from the composition is deposited in accordance with the above described method. Also described is a method of using photolatent catalyst (a), in which a composition containing said catalyst is irradiated before subsequent treatment, characterised by that subsequent treatment is preparation of foam material and the composition contains polyol and isocyanate components and photolatent base (a2) as photolatent catalyst.

EFFECT: provision for solidification of the system.

13 cl, 10 tbl, 16 ex