Photoactivable nitrogen bases

A composition comprising:

• (A) at least one photolatent base compound of the formula (Ib), (IIb), (IIIb), (Ic), (IIc) or (IIIc):
• wherein
• Ar is phenylene, biphenylene, naphthylene, anthrylene or anthraquinonylene all of which are unsubstituted or are substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, CH2OR11, COOR12, CONR12R13 or halogen;
• R1, R2, R7 and R8 independently of one another other are hydrogen or C1-C6-alkyl;
• R11 is hydrogen, C1 C6-alkyl;
• R12 and R13 independently of one another are hydrogen, or C1-C18-alkyl
• n is an integer from 1-10;
• X is a direct bond, O, S or NR10;
• A when n is 1, is C2-C18-alkyl which is interrupted by one or more O or N(R′13) or is uninterrupted C1-C18alkyl which is substituted by one or more C1-C6-hydroxyalkyl, OR11, NR12R13, OCOR14;
• or
• A when n is 1, denotes a group
• or, when X is O, additionally X-A denotes X−Y+;
• A when n is greater than 1,
• is an n-valent saturated or unsaturated C2-C50hydrocarbon radical, which optionally is interrupted by one or more O,S,N(R′13), phenylene, naphthylene,
• and which uninterrupted or interrupted n-valent saturated or unsaturated C2-C50hydrocarbon radical is unsubstituted or is substituted by one or more C1-C8-alkyl, C1-C6-hydroxyalkyl, CN, OR11, SR11, NR12R13, COOR12 or halogen;
• or A, when X is NR10, is a n-valent polyalkylene-imine;
• wherein the n-valent polyalkylene-imine is uninterrupted or interrupted by one or more (CO), (CO)O or double bonds and wherein the uninterrupted or interrupted n-valent polyalkylene-imine is unsubstituted or substituted by
• or, when X is O, additionally one or more X-A denote Xn−Yn+ or Xn−nY+;
• y is an integer from 1-20;
• z is an integer from 1-8;
• R′13 has one of the meanings as given for R12 and R13 or is a group (TX);
• R10 has one of the meanings as given for A, when n is 1;
• A1, when n is 1, is hydrogen, C1-C18alkanoyl, C2-C18-alkanoyl which is interrupted by one or more O and/or CO and which uninterrupted or interrupted C2-C18alkanoyl is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, phenyl, CN, OR11, SR11, NR12R13, COOR12 or halogen;
• or said uninterrupted or interrupted C2-C18alkanoyl is substituted by C6-C10-aryl which is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13 or halogen;
• or A1 is C3-C18-alkenoyl which is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13, COOR12, halogen or by C6-C10-aryl which is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13 or halogen;
• C2-C18-alkylaminocarbonyl, which is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13, COOR12 or halogen;
• C6-C20arylaminocarbonyl, which is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, OR11, NR12R13 or halogen;
• C7-C20-arylalkylaminocarbonyl which is unsubstituted or substituted by one or more C1-C4alkyl, C2-C4-alkenyl, OR11, NR12R13 or halogen;
• C7-C15-aroyl or C5-C15-heteroaroyl, both of which are unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13, or halogen;
• or
• A1 when n is 1, denotes a group
• (TX);
• A1, when n is greater than 1,
• a n-valent C2-C30alkanoyl which optionally is interrupted by one or more O and which uninterrupted or interrupted C2-C30alkanoyl is unsubstituted or is substituted by one or more C1-C4alkyl, C2-C4alkenyl, CN, OR11, SR11, NR12R13, COOR12 or halogen;
• a n-valent C8-C20aroyl or C6-C20heteroaroyl, both of which are unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13, COOR12 or halogen;
• a n-valent C10-C20-aralkanoyl, which is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13, COOR12 or halogen;
• or is
• a n-valent C1-C30-alkylaminocarbonyl, which is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13, COOR12 or halogen, wherein said unsubstituted or substituted n-valent C1-C30-alkylaminocarbonyl optionally consists of several mono-valent C1-C30-alkylaminocarbonyl groups which are linked via dimers or trimers of isocyanates or derivatives thereof;
• or is
• a n-valent C6-C20 arylaminocarbonyl, which is unsubstituted or substituted by one or more C1-C4-alkyl, C2-C4-alkenyl, CN, OR11, SR11, NR12R13, COOR12 or halogen;
• or
• A1 when n is greater than 1, denotes a group
• L is C1-C20alkylene-S,
• Q is a direct bond, C1-C8alkylene or C1-C8alkylene which is interrupted by one or more O;
• L1 is direct bond, CO;
• unsubstituted C1-C20alkylene, C1-C20alkylene which is substituted by phenyl or one or more OH;
• C1-C20alkylene which is interrupted by one or more O, S, or NR24;
• C1-C20alkylene which is interrupted by one or more O, S, or NR24 and is substituted by OH;
• or is unsubstituted C1-C20alkylene-O—(CO) or C1-C20alkylene-O—(CO) which is substituted by OH, or is C1-C20alkylene-O—(CO) wherein the alkylene is interrupted by one or more O;
• C1-C20alkylene-N(R19)(CO), C1-C20alkylene-S, C1-C20alkylene-O, C1-C20alkylene-(NR19) or C1-C20alkylene-(CO)—N(R19), where in the groups C1-C20alkylene-O—(CO) or C1-C20alkylene-O—(CO) which is substituted by OH, or is C1-C20alkylene-O—(CO) wherein the alkylene is interrupted by one or more O;
• C1-C20alkylene-N(R19)(CO), C1-C20alkylene-S, C1-C20alkylene-O, C1-C20alkylene-(NR19) or C1-C20alkylene-(CO)—N(R19), the linkage to the thioxanthone group is intended to be via the heteroatom N, S or O or via the CO group;
• or
• L1 is (CO)—C1-C20alkylene-O, where the linkage to the thioxanthone group is via the O atom;
• or
• L1 is (CO)-Q;
• Y is an n-valent cationic counter ion;
• R14 is —CH═CH2 or —C(CH3)═CH2;
• R15, R16, R17 and R18 independently of one another are hydrogen;
• R19 is hydrogen or C1-C6alkyl;
• R20, R21, R22 and R23 independently of one another have one of the meanings as defined for R15, R16, R17 and R18;
• R24 is hydrogen, C1-C10alkyl or C1-C10alkyl which is substituted by OH;
• and
• R25, R26, R27, R28 and R29 independently of one another are C1-C4alkyl;
• and
• (B) at least one organic compound which is capable of a base-catalysed addition, condensation or substitution reaction or which is converted into a different form by a base-catalysed reaction,
• wherein component (A) is present in an amount of from 0.01 to 10% by weight based on component (B).

A photolatent base compound selected from the group consisting of

• where R1 is (CH2)6—OH,
• where R1 is (CH2)2OCH3,
• where R1is (CH2)2—O—(CH2)2—OC2H5,
• where R2 is CH2CH2,
• where R2 is
• where R2 is (CH2)6,
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzoic acid 2-(2-hydroxy-ethoxy)-ethyl ester,
• diethyleneglycole di[4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzoate],
• [4-(hexahydro-pyrrolo[1 ,2-a]pyrimidin-1-ylmethyl)-phenyl]- methanol,
• hexanoic acid 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)- benzyl ester,
• hexanedioic acid 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzyl ester methyl ester,
• 4-(octahydro-pyrimido-[1,2-a]azepin-1-ylmethyl)-benzoic acid methyl ester,
• 4-(octahydro-pyrimido[1,2-a]azepin-1-ylmethyl)-benzoic acid hexyl ester,
• potassium 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)- benzoate,
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzoic acid 2-(9-oxo-9H-thioxanthen-3-ylsulfanyl)-ethyl ester,
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzoic acid 2-(4-benzoyl-phenylsulfanyl)-ethyl ester,
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzoic acid allyl ester,
• N-allyl-4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzamide,
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-N-hexyl-benz-amide,
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-N-(2-hydroxy- ethyl)-benzamide,
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-N-(3-hydroxy-propyl)-benzamide,
• 1-[4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-phenyl]-ethanone,
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzoic acid 6-amino-hexyl ester,
• 4-(hexahydro-pyrrolo[1,2-a]-pyrimidin-1-ylmethyl)-benzamide of poly(ethylene imine),
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-benzoic acid 6-acryloyloxy-hexyl ester, and
• 4-(hexahydro-pyrrolo[1,2-a]pyrimidin-1-ylmethyl)-thiobenzoic acid S-butyl ester.