INTRODUCIBLE PHOTOINITIATING AGENT Russian patent published in 2008 - IPC C07C69/738 C08F2/50 G03F7/31 C09D4/02 

FIELD: organic chemistry, chemical technology.

SUBSTANCE: invention relates to photoinitiating agents of phenylglyoxylic acid order used in polymerizing compositions to be subjected for hardening. Invention describes a photoinitiating agent of the formula (I): wherein Y means (C₃-C₁₂)-alkylene, butenylene, butinylene or (C₄-C₁₂)-alkylene that are broken by groups -O- or -NR₂- and not following in sequence; R₁ means a reactive group of the following order: -OH, -SH, -HR₃R₄, -(CO)-OH, -(CO)-NH₂, -SO₃H, -C(R₅)=CR₆R₇, oxiranyl, -O-(CO)-NH-R₈-NCO and -O-(CO)-R-(CO)-X; R₂ means hydrogen atom, (C₁-C₄)-alkyl, (C₂-C₄)-hydroxyalkyl; R₃ and R₄ mean hydrogen atom, (C₁-C₄)-alkyl, (C₂-C₄)-hydroxyalkyl; R, R and R mean hydrogen atom or methyl; R₈ means linear or branched (C₄-C₁₂)-alkylene or phenylene; R₉ means linear or branched (C₁-C₁₆)-alkylene, -CH=CH-, -CH=CH-CH₂-, C₆-cycloalkylene, phenylene or naphthylene; X, X₁ and X₂ mean -OH, Cl, -OCH₃ or -OC₂H₅. Also, invention describes a method for synthesis of a photoinitiating agent, polymerizing composition and substrate covered by its. Proposed photoinitiating agent possesses the effective introducing capacity and absence of migration in thermal treatments.

EFFECT: improved and valuable properties of agent.

13 cl, 1 tbl, 16 ex