摘要:
Compounds of the formula I, II or III ##STR1## in which Ar is a sulfur-containing aromatic radical, R.sup.1 and R.sup.2 are a monovalent hydrocarbon radical which is substituted or unsubstituted or R.sup.1 and R.sup.2 together form alkylene, oxaalkylene or azaalkylene, R.sup.3 is a direct bond or a divalent hydrocarbon radical, X is a monovalent amino group and X' is a divalent amino or diamino group, are excellent photoinitiators for the photocuring of colored, in particular pigmented, compositions containing an olefinically unsaturated, photopolymerizable binder.
摘要:
Cationically polymerizable compounds, for example epoxide compounds, can be polymerized photochemically using a catalyst combination consisting of an aromatic iodonium salt and a ketone of the formula I, II or III ##STR1## in which n is 1 or 2 and Ar, X, X', R.sup.1, R.sup.2 and R.sup.3 are as defined in claim 1. In this combination, the ketones act as a co-catalyst and drastically accelerate the photopolymerization, although they are not able to initiate a cationic photopolymerization on their own.
摘要:
Dithiophosphate lubricant additives of the formula I ##STR1## wherein R.sub.1 and R.sub.2, each independently of the other, represents C.sub.3 -C.sub.12 alkyl which can be interrupted by 1 to 2 oxygen atoms, C.sub.6 -C.sub.10 aryl or (C.sub.1 -C.sub.12 alkyl)-aryl, or R.sub.1 and R.sub.2 together represent C.sub.2 -C.sub.12 alkylene which can be interrupted by 1 or 2 oxygen atoms, and represents --OH, --NR.sub.3 R.sub.4, --OH.NR.sub.3 R.sub.4 R.sub.5, --NHCH.sub.2 COOH, --NHCH.sub.2 COOR.sub.1, --NH(CH.sub.2 COOH).sub.2, --N(CH.sub.2 COOR.sub.1).sub.2, --N(CH.sub.2 COOH).sub.2.NR.sub.3 R.sub.4 R.sub.5, --N(CH.sub.2 COOH.NR.sub.3 R.sub.4 R.sub.5).sub.2, --NHCH.sub.2 OH or --N(CH.sub.2 CH.sub.2 OH).sub.2, wherein R.sub.3, R.sub.4 and R.sub.5, each independently of the other, represents hydrogen or C.sub.1 -C.sub.18 alkyl, or R.sub.3 and R.sub.4 together represent C.sub.3 -C.sub.12 alkylene which can be interrupted by an oxygen, sulphur or nitrogen atom.
摘要翻译:式I的二硫代磷酸酯润滑添加剂其中R 1和R 2各自独立地表示可以被1-2个氧原子间隔的C 3 -C 12烷基,C 6 -C 10芳基或(C 1 -C 12烷基) - 芳基或R 1 并且R 2一起表示可以被1或2个氧原子中断的C 2 -C 12亚烷基,并且表示-OH,-NR 3 R 4,-OH .NR 3 R 4 R 5,-NHCH 2 COOH,-NHCH 2 COOR 1,-NH(CH 2 COOH)2,-N(CH 2 COOR 1)2 ,-N(CH 2 COOH)2 NR 3 R 4 R 5,-N(CH 2 COOH,NR 3 R 4 R 5)2,-NHCH 2 OH或-N(CH 2 CH 2 OH)2,其中R 3,R 4和R 5各自独立地表示氢或C 1 -C 18烷基, R3和R4一起表示可被氧,硫或氮原子间隔的C 3 -C 12亚烷基。
摘要:
Aromatic-aliphatic ketones of the formulae I, II, III or IV ##STR1## wherein n is 1 or 2, Ar is an aryl radical, R.sup.1 and R.sup.2 are monvalent aliphatic, cycloaliphatic or araliphatic radicals, R.sup.3 is a direct bond or a divalent organic radical, X is a hydroxyl or amino group or the monovalent etherification or silylation products thereof, and X' is a divalent amino, ether or silyloxy group, Y is a direct bond or CH.sub.2 and Z is O, S, SO.sub.2, CH.sub.2 or C(CH.sub.3).sub.2, are suitable sensitizers for the photopolymerization of unsaturated compounds and for the photochemical crosslinking of polyolefins. Some of these compounds are novel and can be obtained by methods analogous to those for obtaining the known compounds of this type.
摘要:
Benzophenone thioethers of the general formula I or Ia ##STR1## in which X is hydrogen, alkyl, alkoxy or --COO-alkyl and X.sub.1 is hydrogen, Cl, Br or --SR, R is an unbranched or branched alkyl radical having 1-20 C atoms, which is unsubstituted or substituted by --OH, --OR.sup.1, --O--C(O)--R.sup.2, --COOR.sup.3, --C(O)-phenyl. --CN, --SR.sup.1, --NH.sub.2, --NHR.sup.4, --NR.sup.4 R.sup.5 or phenyl, in which R.sup.1, R.sup.2, R.sup.3, R.sup.4 and R.sup.5 are monovalent hydrocarbon radicals, R.sub.a is an alkylene radical having 2-10 C atoms, which is unsubstituted or substituted by --OH. --OR.sup.1 or --O--C(O)--R.sup.2 and/or is interrupted by --O--, --NR.sup.4, --O--C(O)--R.sup.6 --C(O)--O--, --C(O)--O--R.sup.7 --O--C(O)-- or phenylene and R.sup.6 and R.sup.7 are divalent hydrocarbon radicals, can be prepared by reacting a mono- or di-halogenobenzophenone of the general formula II ##STR2## in which X.sub.2 is Cl or Br and X.sub.3 is H, Cl or Br, in a polar solvent with a mercapto compound of the formula RSH or R.sub.a (SH).sub.2 in the presence of a base in an amount equivalent to the amount of halogen to be reacted.
摘要:
Compounds of the formula I ##STR1## wherein Ar.sup.1 and Ar.sup.2 represent unsubstituted or substituted phenyl, R.sup.1 represents hydrogen, alkyl, alkoxy, hydroxyalkyl, allyl, benzyl or a group --O--R.sup.2 -NR.sup.3 R.sup.4, R.sup.2 represents alkylene and --NR.sup.3 R.sup.4 is an open chain or cyclic organic amino group, are effective initiators for the photopolymerization of unsaturated compounds or for the photocrosslinking of polyolefins. They can be obtained by different methods which are in themselves known, in particular by reaction of the corresponding haloalkyl ethers or haloalkyl ketals with primary or secondary amines.
摘要翻译:式I的化合物其中Ar 1和Ar 2表示未取代或取代的苯基,R 1表示氢,烷基,烷氧基,羟基烷基,烯丙基,苄基或基团-O-R 2 -NR 3 R 4,R 2表示亚烷基和-NR 3 R 4 是开链或环状有机氨基,是不饱和化合物的光聚合或聚烯烃的光交联的有效引发剂。 它们可以通过本身已知的不同方法获得,特别是通过相应的卤代烷基醚或卤代烷基缩酮与伯胺或仲胺反应。
摘要:
Anthrone derivatives having hydroxy, ether or hydrocarbyl groups in 10-position, for example 10,10-dimethoxyanthrone, are excellent photoinitiators for the UV-curing of unsaturated systems. Preferable systems are monomeric or oligomeric acrylates and their mixtures.The systems may be used in thin layers as for instance for coatings or printing inks.
摘要:
Aromatic sulfonic acid hydrazides and semicarbazides having a sterically hindered phenol group are usable as blowing agents in the manufacture of foamed plastics articles. On heating to about 200 to 300.degree. C. they are splitting off nitrogen and the residue remaining in the foam acts as stabilizer against thermo-oxidative degradation of the plastic material.
摘要:
Benzoin derivatives which contain one or two phosphonoalkyl groups are suitable photoinitiators for the photopolymerization of unsaturated compounds, for example for curing printing inks or coatings of acrylates or unsaturated polyester resins. The new compounds can be obtained in different ways, for example by the Arbuzov reaction from the corresponding haloalkyl derivatives or by addition of esters of unsaturated phosphonic acids to benzoin or benzoin ethers.
摘要:
The invention relates to pyrrolo 3,4-c!pyrroles of formula ##STR1## wherein A and B are each independently of the other a group of formula ##STR2## or Q, wherein Q is a 5- or 6-membered heterocyclic aromatic amine oxide radical which is unsubstituted or substituted by one, two or three C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy or ##STR3## and which may contain one or two fused benzene rings, R.sub.1 and R.sub.2 are each independently of the other hydrogen, halogen, C.sub.1 -C.sub.18 alkyl, C.sub.1 -C.sub.18 alkoxy, C.sub.1 -C.sub.18 alkylmercapto, --CN, --NO.sub.2 or trifiuoromethyl, D and E are each independently of the other hydrogen, C.sub.1 -C.sub.18 alkyl, C.sub.2 -C.sub.4 alkenyl, C.sub.7 -C.sub.10 aralkyl, unsubstituted phenyl or phenyl which is substituted by chloro, bromo, C.sub.1 -C.sub.6 alkyl, C.sub.1 -C.sub.4 alkoxy, trifiuoromethyl or nitro, with the proviso that at least one of the sustituents A and B is an amine oxide radical Q.These novel diketopyrrolo 3,4-c!pyrroles are suitable for use as pigments, but especially as photoconductive substances in electrophotographic photoreceptors.