摘要:
The present invention provides organometallic latent catalyst compounds, which are suitable 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).
摘要:
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 plasma discharge chamber.
摘要:
The invention relates to novel N-substituted imides and polymerizable compositions com¬ prising these N-substituted imides. The invention further relates to the use of N-substituted imides as polymerization initiators. The imides are compounds of the formula (I) and (II) wherein n is 1 or 2; m is 1 or 2; R1 and R2 are each, independently of one another, hydrogen, C1-C18alkyl, C1-C-18alkenyl C6-C14aryl, aralkyl, C5-C12cycloalkyl, each of which may be substituted by halogen, C1-C4-alkyl, hydroxy, C1-C6alkoxy, carbonyl, C1-C6alkoxycarbonyl; or R1 and R2 together with the adjacent -CO-N-CO- group may form a monocyclic, bicyclic or polycyclic ring, said ring having up to 50 non hydrogen atoms and wherein said ring may contain the structural element (formula III) more than once; R3 if n is 1, is C1-C18alkyl, C6-C14aryl, aralkyl, C5-C12cycloalkyl, OR10 or SR11, NR12R13; wherein R3 if n is 2, is C2-C12alkylene, C6-C14arylene, xylylene R4 and R5, correspond to R1 and R2; R6 if n is 1, is hydrogen, C1-C18alkyl, C6-C14aryl, aralkyl, C5-C12cycloalkyl, NR14R15; wherein R6 if n is 2, is C2-C12alkylene, C6-C14arylene, xylylene; R7 is hydrogen, C1-C18alkyl, C6-C14aryl, aralkyl, C5-C12cycloalkyl, each of which may be substituted by halogen, C1-C4-alkyl, hydroxy, C1-C6alkoxy, carbonyl, C1-C6alkoxy- carbonyl; or R7 and R14 or R7 and R15 form together with the N-atom attached to R7 a 5- 6 membered ring, optionally interrupted by -NH-, -N(C1-C8alkyl)-, -O- and/or S-atoms.
摘要:
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, OR5, C3-C5alkenyl or C1-C6alkyl which optionally is substituted by one or more OR6, COOR or halogen; R1ifx is 1, is OR7, O- X+, NR8R9, C1-C20alkyl optionally substituted by one or more COOR10, or is C2-C20alkyl interrupted by one ore more O, or is C2-C5alkenyl or phenyl-C1-C4alkyl; R1ifx is 2, is for example C1-C20alkylene; R1ifx is 3, is for example a tri- valent radical; R1if x is 4, is for example a tetravalent radical; R2and R3are hydrogen or C1- C8alkyl, or R2and R3together are O, C1-C3alkylene or CH=CH; R4 is C1-C4alkyl; R5, R6, R7, R8, R9 and R10 are for example hydrogen or C1-C4alkyl; and X is a x-valent cationic counter ion; are in particular suitable as photoinitiators forthe curing with UV-A light (320-450 nm).
摘要:
The invention relates to a process for preparing organosilicon group containing photoinitiators of the formula (I), wherein m is a number from 1 to 200; q is 0 or 1; A is IN-C(O)-O-CHR3-Y- or IN-C(O)-NH-CHR3-Y-; A’ is A or R1’; R1 and R1’, R2 and R2’ are C1-C18alkyl or phenyl, or -(O)q-SiR1R1’R2; R3 is hydrogen or C1-C6alkyl, Y is a divalent group selected from C1-C10alkeylene, C2-C10alkenylene or -(CH2)b-O-(CH2)a-; and b are each independently of the other a number of 1 to 6; IN is a photolabile functional moiety of the formula (II) or (III), wherein R4 is hydrogen or -C(O)-C(O)-OH or -C(O)-C(O)-OC1-C6alkyl and n is 1-3; R5 and R6 are C1-C12alkyl or together are cycloC5-C7alkyl; R7 is hydroxy, C1-C6alkoxy or morpholinyl; X is -(CH2)a-, -(CH2)b-O-(CH2)a- or -(CH2)b-O-CO-(CH2)a-; a and b are each independently of the other a number of 1 to 6; whereby the process is characterized in that a photolabile functional moiety containing a carboxy group (IN-COOH) or an alkoxycarbonyl group (IN-CO-OC1-C6alkyl) is reacted with a carbinol- or amino terminated organosilicon compound of the formula (IV), wherein m, R1 and R1’, R2 and R2’ are as defined above and B is -Y-CHR3-OH or -Y-CHR3-NH2; B’ is B or R1’, in the presence of an enzyme which catalyzes the esterification, transesterification or amidation reaction.
摘要:
The present invention provides organometallic latent catalyst compounds, which are suitable 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).
摘要:
Compounds of the Formula (I), (II) and (III) wherein Ar is for example phenylene, biphenylene or naphthylene, all of which are unsubstituted or substituted by 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; R3 and R5 together and R4 and R6 together form a C2-C6-alkylene bridge which is unsubstituted or substituted by one or more C1-C4-alkyl; R11 is hydrogen or C1-C6-alkyl; R12 and R13 independently of one another for example are hydrogen, phenyl, C1-C18-alkyl, C1-C18-alkyl which is interrupted by one or more O; n is 1-10; X is O, S or NR10; A and A1 are suitable linking groups; are suitable as photolatent bases.
摘要:
The present invention pertains to a composition comprising (a) a photolatent base; (b) a blocked isocyanate or blocked isothiocyanate and (c) a hydrogen donor compound; and its applications.