Th. Goldschmidt Ag

Other

Goldschmidt Ag

Georg Feldmann-Krane

Stefan Silber

Thomas Ebbrecht

James V Crivello

Dietmar Schaefer

Andreas Weier

Georg Burkhart

Rolf-Dieter Langenhagen

Peter Lersch

Gerhard Reusmann

Sascha Oestreich

Wolfgang Josten

Ingo Fleute-Schlachter

Petra Hinrichs

Stefan Stadtm&uuml;ller

Werner Hohner

Werner Spratte

Susanne Struck

Diaryliodonium salts are disclosed, as well as a method for preparing them, in which one of the aryl groups bonded to the positively-charged iodine ion contains a methyl substituent, and the other one contains a hydroxyl-substituted alkoxy group. The salts are synthesized from (o, m, or p)-iodotoluene, as opposed to iodobenzene, and therefore do not pose a carcinogenic risk. In addition, the present salts are unexpectedly more soluble in most organic solvents, as well as in nonpolar monomers, than the corresponding benzene catalysts. The salts are useful as cationic photoinitiators, cationic thermal initiators (often combined with a cocatalyst, e.g. copper), and as starting materials in the synthesis of urethane-containing iodonium salts.

Diaryliodonium salt catalysts made from iodotoluene and a method for preparing them

Use of silicon-polyether copolymers in the production of high resilience polyurethane foams

The invention relates to novel organosiloxanyl derivatives of the general formula:

Organosiloxanyl derivatives of alkanediol monovinyl ethers, process for their preparation, their modification and their use as paint additives

Oraganopolysiloxanes of the general formula ##STR1## where R.sup.1 =identical or different aliphatic or aromatic hydrocarbon radicals,

Acrylate group-modified organosiloxanyl derivatives of alkanediol

Radiation-curing printing inks which comprise organopolysiloxanes of the general formula ##STR1## in which R.sup.1 =an alkyl radical having 1 to 8 carbon atoms,

Radiation-curing printing inks with enhanced scratch resistance and

Aqueous and radiation-curable printing varnishes and printing inks, are disclosed which contain special polyoxyalkylene polysiloxane copolymers. These printing varnishes and printing inks have improved scratch resistance, a higher gliding ability and an extremely low tendency to foam, so that the production of printing inks proceeds without problems and, at the same time, an optically attractive typography can be obtained.

Aqueous and radiation-curable printing varnishes and printing inks with

Organopolysiloxane polyethers with increased resistance to hydrolysis are prepared. Furthermore, a method of rendering an aqueous system hydrolysis-resistant and exhibiting increased wetting property utilizing such polysiloxane polyethers as wetting agents in aqueous systems is described. Aqueous coating systems containing such polyethers exhibit increased wetting property and are resistant to alkaline and acidic hydrolysis.

Organopolysiloxane polyethers and their use as hydrolysis-resistant

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Mulheim, Germany

Georg Feldmann-Krane