Patent ID: 6376568
Filing Date: 2002-04-23
Classification: B33Y,C07F,C08F,Y10S,Y10T

Abstract:
A composition comprising(A) at least one ethylenically unsaturated free-radically photopolymerisable compound; and (B) at least one surface-active photoinitiator of formula I, provided that the composition does not contain any siloxane-modified resins in addition to the photoinitiator wherein the units of formulae Ia, Ib and/or Ic are arranged randomly or in blocks, and whereinn is a number from 1 to 1000, or, when the siloxane starting material is a mixture of oligomeric siloxanes, n may also be less than 1, but greater than 0; m is a number from 0 to 100; p is a number from 0 to 10000; x is the number 1 or 2; A1 is C1-C18alkyl or a radical of formula A2 is C1-C18alkyl or a radical of formula â€ƒor A1 and A2 together are a single bond; R1, R2, R3, R5, R6, R7, R8, R9 and R10 are each independently of the others C1-C18alkyl, phenyl, C2-C6hydroxyalkyl, C2-C6aminoalkyl or C5-C8cycloalkyl; R4 is C1-C18alkyl; C1-C18alkyl substituted by hydroxy, C1-C12alkoxy, halogen, C3-C8cycloalkyl and/or by N(R11)(R12); or R4 is phenyl; phenyl substituted by C1-C12alkyl, C1-C12alkoxy, halogen, hydroxy and/or by N(R11)(R12); or R4 is C5-C8cycloalkyl; R11 and R12 are each independently of the other hydrogen, C1-C12alkyl or C1-C12hydroxyalkyl, or R11 and R12 together are C2-C8alkylene, which may be interrupted by an oxygen atom: IN when x is 1, is a radical of formula IN when x is 2, is a radical of formula R13 and R14 are each independently of the other C1-C12alkyl, C2-C8alkenyl, C5-C8cycloalkyl, phenyl-C1-C3alkyl; or R13 and R14 together are C2-C8alkylene, C3-C9-oxaalkylene or C3-C9azaalkylene; Y is â€”(CH2)aâ€”, â€”(CH2)aâ€”Oâ€”, â€”Oâ€”(CH2)aâ€”Oâ€”, â€”(CH2)bâ€”Oâ€”(CH2)aâ€”, â€”(CH2)bâ€”Oâ€”(CH2)aâ€”Oâ€”, â€”(CH2)aâ€”N(R12)â€”, â€”(CH2)bâ€”Oâ€”(CH2)aâ€”N(R12)â€”, â€”(C2-C10alkenylene)â€”Oâ€”, â€”(C2-C10alkenylene)â€”N(R12)â€”, â€”(C2-C10alkenylene)-Oâ€”(CH2)aâ€”Oâ€” or â€”(C2-C10alkenylene)-Oâ€”(CH2)aâ€”N(R12)â€”; a and b are each independently of the other a number from 0 to 10; X is OR15 or N(R16)(R17); R15 is hydrogen, C1-C4alkyl, C2-C8alkenyl or C1-C4alkanoyl; R16 and R17 are each independently of the other hydrogen, C1-Cl2alkyl or C2-C6alkenyl; or R16 and R17 together are C4-C5alkylene and, together with the nitrogen atom to which they are bonded, form a 5- or 6-membered ring, which may be interrupted by O or by N(R12); and X1 is a radical â€”Oâ€”, â€”Oâ€”(CH2)aâ€” or â€”N(R12)â€”(CH2)aâ€”.