Abstract:
The invention pertains to photolatent amidine bases for redox curing of radically curable formulations, that is a composition comprising (a1) a photolatent amidine base; or (a2) a photolatent amine base; or (a3) a mixture of (a1) and (a2); and (b) a radically polymerizable compound; and (c) a free radical initiator capable to be reduced by amines and/or amidines, in particular a peroxide.
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:
Compounds of the Formula (I), (II) and (III) wherein Aris for example phenylene, biphenyleneor naphthylene, all of which areunsubsti- tuted or substituted by C 1 -C 4 -alkyl, C 2 -C 4 -alkenyl, CN, OR 11 , SR 11 , CH 2OR 11 , COOR 12 , CONR 12 R 13 or halogen; R 1 , R 2 , R 7 and R 8 independently of one another other are hydrogen or C 1 -C 6 -alkyl;R 3 and R 5 together and R 4 and R 6 together form a C 2 -C 6 -alkylene bridge which is unsubstituted or substituted by one ore more C 1 -C 4 -alkyl; R 11 is hydrogen or C 1 -C 6 -alkyl; R 12 and R 13 independently of one another forexample are hydrogen, phenyl, C 1 -C 18 -alkyl, C 1 -C 18 -alkyl which is interrupted by one or more O; n is 1-10;X is O, S or NR 10 ; A and A 1 are suitable linking groups;are suitable as photolatent bases.
Abstract:
Compounds of the formula I R7"N-R6 RS-C,N-R4 H C, R'/ I R, 3 R 2 (I) in which R, is an aromatic or heteroaromatic radical which is capable of absorbing light in the wave-length range from 200 nm to 650 nm and which is unsubstituted or substituted one or more times by C,-C,8alkyl, C2-C,ealkenyl, C2-C,8alkynyl, C,-C,ehaloalkyl, N02, NR,OR , CN, OR,2, SR,2, C(O)R,3, C(O)OR,4, halogen or a radical of the formula II R∼-N' R6 1 R5-C,N.R4 H I C - R3 I R2 (II) and which on absorption brings about a photoelimination which leads to the generation of an amidine group, R2 and R3 independently of one another are hydrogen, C,-C,ealkyl or phenyl which is unsubstituted or is substituted one or more times by C,-C,8alkyl, CN, OR,2, SR,2, halogen or C,-C,ehaloalkyl; R5 is C,-C,ealkyl or NR8R9; R4, R6, R,, R8, R9, R,o and R inde-pendently of one another are hydrogen or C,-C,8alkyl; or R4 and R6 together form a C2-C,2alkylene bridge which is unsubstituted or is substituted by one or more C1-C4alkyl radicals; or R5 and R,, independently of R4 and R6, together form a C2-C,2alkylene bridge which is unsubstituted or is substituted by one or more C1-C4alkyl radicals; or, if R5 is a radi-cal NR8R9, R, and R9 together form a C2-C,2alkylene bridge which is unsubstituted or is sub-stituted by one or more C1-C4alkyl radicals; and R,2, R,3 and R,4 independently of one another are hydrogen or C,-C,ealkyl; are suitable as photoinitiators for compounds which react under base catalysis.
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.
Abstract:
The present application provides a composition showing a color change depending on the absorbed radiation-dose, comprising (a) an acid responsive colorant; (b) a photolatent acid; characterized in that (b) is a sulfonyloxime ester compound; and its use as a radiation dose indicator.
Abstract:
The Application relates to a method of curing various polymerisable compositions, comprising a suitable photoinitiator, the curing being effected by means of a plasma in a plasma discharge chamber.
Abstract:
The invention pertains to photolatent amidine bases for redox curing of radically curable formulations, that is a composition comprising (a1) a photolatent amidine base; or (a2) a photolatent amine base; or (a3) a mixture of (a1) and (a2); and (b) a radically polymerizable compound; and (c) a free radical initiator capable to be reduced by amines and/or amidines, in particular a peroxide.
Abstract:
The invention relates to a first method of bonding a first substrate to a second substrate, comprising the steps of a) applying an UV-curable adhesive resin composition comprising a photolatent base to at least one transparent surface of at least one of said first and second substrates, b) bringing said first and second substrates together with said adhesive composition there between, c) exposing said adhesive composition to actinic radiation to effect curing or alternatively to a second method of bonding a first substrate to a second substrate, comprising the steps of a) applying a UV-curable adhesive resin composition comprising a photolatent base to one surface, b) exposing said adhesive composition to actinic radiation to effect curing, c) bringing said first and second substrates together with said adhesive composition there between.