Abstract:
Benzophenone derivatives of formula (I) wherein R1, R2 and R3 are each independently of the others hydrogen or C 1 -C 4 alkyl, cyclopentyl or cyclohexyl; R 4 , R5 and R 6 are each independently of the others hydrogen, C 1 -C 4 alkyl, cyclopentyl or cyclohexyl; R 7 and R 8 are each independently of the other hydrogen, C 1 -C 4 alkyl, cyclopentyl or cyclohexyl with the provisos that (i) at least one radical R 1 , R 2 , R 3 , R 4 , R 5 , R 6 , R 7 , R 8 is other than hydrogen; (ii) when all radicals R 4 , R 5 , R 6 , R 7 and R 8 are hydrogen and only one radical R 1 , R 2 , R 3 is C 1 -C 4 alkyl, that radical must be in the meta-position of the phenyl ring; and (iii) when all radicals R 1 , R 2 , R 3 , R 7 and R 8 are hydrogen and two of the radicals R 4 , R 5 and R 6 , are hydrogen and the remaining radical R 4 , R 5 or R 6 is C 1 -C 4 alkyl, that alkyl radical is not bonded in the para-position on the phenyl ring; are found to be especially suitable in photocurable compositions in respect of solubility, reactivity and a low level of yellowing.
Abstract:
Compounds of formula (I), wherein Y is, for example, C 3 -C, 12 alkylene, butenylene, butynylene, or C 4 -C, 12 alkylene interrupted one or more times by non-consecutive -O- or -NR 2 -; R 1 is a reactive group selected from OH, SH, NR 3 R 4 , -(CO)-OH, -(CO)-NH 2 , SO 3 H, -C(R 5 )=CR 6 R 7 , oxiranyl, -O-(CO)-NH-R 8 -NCO and -O-(CO)-R 9 -(CO)-X; R 2 is hydrogen, C 1 -C 4 alkyl or C 2 -C 4 hydroxyalkyl; R 3 and R 4 are each independently of the other hydrogen, C 1 -C 4 alkyl or C 2 -C 4 hydroxyalkyl ; R 5 , R 6 and R 7 are each independently of the others hydrogen or methyl; R 8 is, for example, linear or branched C 4 -C 12 alkylene, or phenylene; R 9 is, for example, linear or branched C 1 -C 16 alkylene, -CH=CH-, -CH=CH-CH 2 -, C 6 -cycloalkylene, phenylene or naphthylene; and X, X 1 and X 2 are each independently of the others OH, Cl, OCH 3 or OC 2 H 5 ; are suitable as photoinitiators that can be incorporated in a formulation to be cured.
Abstract:
The present invention provides organometallic latent catalyst compounds, which aresuitable as catalysts in polyaddition or polycondensation reactions which are catalysed by a Lewis acid type catalyst, in particular for the crosslinking of a blocked or unblocked isocyanate or isothiocyanate component with a polyol or polythiolto form a polyurethane (PU).
Abstract:
The invention relates to α-hydroxy ketones of formula I or IIa; or mixtures of compounds of formula I and II; or mixtures of compounds of formulae Ia and IIa
Abstract:
The invention relates to novel photoinitators of formulae (I), (II), (III), (IV), (V) and (VI) wherein R 1 and R 2 are each independently of the other C 1 -C 8 alkyl; C 1 -C 4 alkyl substituted by OH, C 1 -C 4 alkoxy, -COO(C 1 -C 8 alkyl), (C 1 -C 4 alkyl)-COO-, -CN, benzyl, phenyl or by -N(R 15 )(R 16 ); C 3 -C 6 alkerlyl, benzyl, -CH 2 -C 6 H 4 -(C 1 -C 4 alkyl) or phenyl; or R 1 and R 2 together are unbrarched or branched C 2 -C 9 alkylene or C 3 -C 6 -oxa- or -azaalkylene; R 3 , R 4 , R 5 and R 6 are each independently of the others hydrogen, C 1 -C 8 alkyl, C 3 -C 6 alkenyl, benzyl, -CH 2 -C 6 H 4 -(C 1 -C 4 alkyl) or phenyl; R 3 and R 4 together and/or R 5 and R 6 together are unbranched or branched C 2 -C 9 alkylene; A is CI, Br, -O-R 9 , -N(R 11 )(R 12 ) or -S-R 18 , A' is -O-, -NH- or -NR 11 -; A" is CI, Br, -O-R 9 , -N(R 11 )(R 12 ) or -S-R 18 or hydrogen, X is -O-R 10 or -N(R 13 )(R 14 ), n is an integer from 1 to 10, preferably an integer from 1 to 4, especially 1, 2 or 3; R 7 is a linker; R 8 is a bivalent C 2 -C 3 alkylele radical.
Abstract:
The Invention relates to novel ketones of formulae (I) and (II) wherein R 1 , R 2 , R 3 and R 4 are, for example, C l -C 8 alkyl, R 5 is, for example, hydrogen, A is CI, Br, -0-R 7 , -NR 8 R 9 or -S-R 16 , A' is -O-, -NH- or -NR 8 -, X and Y are each independently of the other -O-R 10 or -N(R 11 )(R I2 ), n is an integer from 1 to 10, R 6 is, for example, an n-valent radical of linear or branched C 2 -C 20 alkyl the carbon chain of which may be interrupted by cyclohexanediyl, phenylene, -CH(OH)-, -C(C 2 H 5 )(CH 2 -CH 2 -OH)-, -C(CH 3 )(CH 2 -CH 2 -OH)-, -C(CH 2 -CH 2 -OH) 2 -, -N(CH 3 )-, -N(C 2 H 5 )-, -N(CH 2 -CH 2 -OH)-, -CO-O-, -O-CO-, -P(CH 2 -CH 2 -OH)-, -P(O)(CH 2 -CH 2 -OH)-, -0-P(O-CH 2 -CH 2 -OH)-O-, -0-P(O)(0-CH 2 -CH 2 -OH)-O-, -O-cyclohexanediyl-C(CH 3 ) 2 -Cyclohexanediyl-O-, -O-phenylene-C(CH 3 ) 2 -phenylene-O-, -O-phenylene-CH 2 -phenylene-O-, -Si(CH 3 ) 2 -, -0-Si(CH 3 ) 2 -O-, -O-Si(CH 3 )(0-CH 3 )-O-, -Si(CH 3 )(R 17 )-O-Si(CH 3 )(R 18 )-, 5-(2-hydroxyethyl)-[1,3,5]triazinane-2,4,6-trione-1,3-diyl and/or by from one to nine oxygen atoms.
Abstract:
The invention relates to a process for the preparation of a crystalline isomeric mixture of compounds of formulae (I) and (II) which process comprises the following steps: a) the slow addition of aluminium chloride, in portions, to a solution comprising 1,1,3-trimethyl-3-phenylindan and isobutyric acid halide in a suitable solvent at a reaction temperature of from -20°C to 20°C, an isomeric mixture consisting of compounds of formulae (la) and (Ila) being obtained; b) enol chlorination of compounds (la) and (Ila), an isomeric mixture consisting of compounds of formulae (lb) and (IIb) being obtained; c) hydrolysis of the chlorinated isomeric mixture from step b). The invention relates also to the preparation of the individual compounds (I) and (II).
Abstract:
The invention relates to α-hydroxy ketones of formula I or IIa; or mixtures of compounds of formula I and II; or mixtures of compounds of formulae Ia and IIa
Abstract:
Compounds of theFormula (I) wherein x is an integer from 1-4; p is an integer from 1-3; q is an integer from 0-3; Ar is phenyl, naphthyl, anthryl or phenanthryl each of which optionally is substituted by one or more Cl, CN, OR 5 , C 3 -C 5 alkenyl or C 1 -C 6 alkyl which optionally is substituted by one or more OR 6 , COOR or halogen; R 1 ifx is 1, is OR 7 , O- X + , NR 8 R 9 , C 1 -C 20 alkyl optionally substituted by one or more COOR 10 , or is C 2 -C 20 alkyl interrupted by one ore more O, or is C 2 -C 5 alkenyl or phenyl-C 1 -C 4 alkyl; R 1 ifx is 2, is for example C 1 -C 20 alkylene; R 1 ifx is 3, is for example a tri- valent radical; R 1 if x is 4, is for example a tetravalent radical; R 2 and R 3 are hydrogen or C 1 - C 8 alkyl, or R 2 and R 3 together are O, C 1 -C 3 alkylene or CH=CH; R 4 is C 1 -C 4 alkyl; R 5 , R 6 , R 7 , R 8 , R 9 and R 10 are for example hydrogen or C 1 -C 4 alkyl; and X is a x-valent cationic counter ion; are in particular suitable as photoinitiators forthe curing with UV-A light (320-450 nm).
Abstract translation:式(I)的化合物,其中x是1-4的整数; p是1-3的整数; q是0-3的整数; Ar是苯基,萘基,蒽基或菲基,其各自任选被一个或多个Cl,CN,OR 5,C 3 -C 5 - 任选被一个或多个OR 6,COOR或卤素取代的亚烷基或C 1 -C 6 -C 6烷基; R 1 x 1是1,是OR 7,O-X +,NR 8 R 9 或任选被一个或多个COOR 10取代的C 1 -C 20烷基或C 2 -C 20烷基, 被一个或多个O取代的C 1 -C 20烷基或C 2 -C 5 - 烯基或苯基-C 1 SUB> -C 4 SUB>烷基; R 1,如果x为2,则为例如C 1 -C 20亚烷基; R 1是3,例如是3价基团; 如果x为4,则R 1为例如四价基团; R 2和R 3是氢或C 1 -C 8烷基,或R 2, R 3和R 3一起是O,C 1 -C 3亚烷基或CH = CH; R 4是C 1 -C 4烷基; R 4是C 1 -C 4烷基; R 5,R 6,R 7,R 8,R 9和R 9和 R 10是例如氢或C 1 -C 4烷基; X为x-阳离子抗衡离子; 特别适用于用UV-A光(320-450nm)固化的光引发剂。
Abstract:
The invention provides a uv-curable colored composition, comprising (a) at least one selected ethylenically unsaturated photopolymerizable compound; (b) at least one selected curing agent; and (c) at least one selected colorant.