Bayer Aktiengesellschaft

Miles Inc.

Bayer Materialscience Ag

Frank Kobelka

Holger Casselmann

Gunther Reichert

Josef Pedain

Lutz Schmalstieg

Ulrich Von Gizycki

Eberhard Konig

Michael Ludewig

Mathias Matner

Gunter Sackmann

Theodor Engbert

Gerhard-Dieter Wolf

Jurgen-Rolf Hassdenteufel

Keith-Allen Foster

Hans Lietz

The present invention relates to a process for preparing alkoxysilane-functional prepolymers by reacting  The present invention also relates to the alkoxysilane-functional prepolymers obtained by the process of the invention.

Low viscosity, alkoxysilane-functional prepolymers and a process for their preparation

The present invention relates to polyisocyanates prepared from diphenylmethane diisocyanate wherein at least 95% of the isocyanate groups are blocked with diethyl malonate and wherein the polyisocyanates have, based on solids,

Diphenylmethane diisocyanate based polyisocyanates containing

New spray powder formulations are described which, after application in the form of a thin layer to substrate surfaces with the aid of processes basset on electrostatic attraction and storing of this layer by heat or high-energy radiation, allow the deposition of firmly adhering layers of metal by currentless, wet-chemical metallization. The essential constituents of such a formulation are a pulverulent, non-conductive material and (semi-) noble metal compounds.

Powder mixtures for metallization of substrate surfaces

The present invention relates to organic polyisocyanates which have a content of unblocked and blocked isocyanate groups (calculated as NCO) of 5 to 20 wt.%, preferably 7 to 15 wt.%, wherein at least 95%, preferably 100%, of the isocyanate groups are present in blocked form and wherein the blocking agent contains

At least partially blocked organic polyisocyanates, a process for their

Formulations containing an organometallic activator, a filler, a solvent and an aqueous dispersion of a polyurethane polymer are outstandingly suitable for activation of surfaces of plastics for currentless metallisation thereof. The components of plastic activated in this way are preferably employed, after metallisation has been carried out, for shielding from electromagnetic waves.

Formulation for the activation of substrate surfaces for currentless

Growing community of inventors

Leverkusen, Germany

Frank Kobelka