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US 8,906,979 B2Granted
Macrophotoinitiators
AssigneeBASF SE
InventorsMarkus Frey, Christophe Frossard, Katia Studer, Bruno Spony, Patrizia Sgambati
Life of this patent
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Abstract
The invention pertains to high-molecular photoinitiator compounds comprising a photoactive moiety Q and an amine functionality, preferably a tertiary amino group, where the photoactive moiety Q is a benzoyl photoactive moiety.
Claims7
A photoinitiator compound comprising a photoactive moiety Q and an amine functionality, the photoinitiator compound represented by formula (1)
- wherein
- R4 and R5 are a photoactive moiety Q;
- R6 is linear or branched C1-C20alkyl which optionally is substituted by one or more identical or different Y2;
- or is linear or branched C2-C20alkyl which is interrupted by one or more identical or different Y1 and which interrupted C2-C20alkyl optionally is substituted by one or more identical or different Y2;
- or is a group E-R9 or E1-R13;
- Q is a photoactive moiety
- wherein the asterisk (*) denotes the bonding to the N atom;
- g and g′ are 0;
- R1 and R′1 independently of each other are hydrogen, linear or branched C1-C6alkyl, OC1-C3alkyl, OR3, NO2, CN, (CO)OR2 or halogen;
- Z is a group
- wherein the double asterisk (**) denotes the bonding to the phenyl ring and the asterisk (*)denotes the bonding to the nitrogen atom;
- X is O;
- R2 is hydrogen or C1-C6alkyl;
- R3 is hydrogen or (CO)CH3;
- Y1 is O or NR16;
- Y2 is N(R10)(R11);
- R9 is G2-N(R10)(R11) or hydrogen;
- R10 and R11 independently of each other are a photoactive moiety Q, hydrogen,
- or R10 and R11 are linear or branched C2-C18alkyl which is interrupted by one or more O and which interrupted C2-C18alkyl optionally is substituted by OR12;
- R12 is hydrogen;
- R13 is N(R10)(R11);
- R16 is a photoactive moiety Q, hydrogen, or linear or branched C2-C18alkyl which is interrupted by one or more O and which interrupted C2-C18alkyl optionally is substituted by OR12 or NR10R11;
- E is a group
- wherein the asterisk (*) denotes the bond to the N-atom;
- G2 in the multiple occurring moieties
- are identical or different and are linear or branched C2-C6alkylene;
- a in the multiple occurring moieties
- independently are an integer 1-50;
- M in the multiple occurring moieties
- are identical or different and are O or N(R16);
- E1 is a group
- wherein the asterisk (*) denotes the bond to the N-atom;
- e is 1;
- G3 in the multiple occurring moieties
- are identical or different and are linear or branched C2-C6alkylene;
- the sum of b+c+d is an integer 1-12;
- and
- R23 is linear or branched C1-C6alkyl.
35 more elements
Dependencies are inferred from the claim text.