Basf Se Corporation

Basf Aktiengesellschaft

Peter Thuery

Sebastian Berger

Susanne Neumann

Uwe Burkhardt

Christine Roesch

Stefan Wahl

Reinhold Schwalm

Manfred Biehler

Axel Becker

Katharina Andes

Kenneth Shaun Tranter

Tanja Becker

Daniel Kunz

Erich Beck

Sebastian Roller

Yvonne Heischkel

Nick Gruber

Juergen Kaczun

Markus Hickl

Kathrin Cohen

Gabriele Dlugosch

Steven Zijlstra

Frank Voellinger

Delphine Kimpel

K Shaun Tranter

Martin Kaarup Bek

Radiation-curable, polyester acrylate-containing compositions (I) obtainable by reacting 0.5 to 20 mol % of a polyester polyol (A) and 0.5 to 30 mol % of a polyester diol (B) with 1 to 10 mol % of phthalic anhydride (C) and 65 to 75 mol % of (meth)acrylic acid (D) in the presence of an acidic esterification catalyst, a hydrocarbon (L), and a polymerization inhibitor. Reaction temperatures range from 60 to 140&#xb0; C. The hydrocarbon (L) functions as solvent, forms an azeotropic mixture with water, and is removed distillatively after esterification. Water formed in the reaction is removed azeotropically. After neutralization of the esterification catalyst, free (meth)acrylic acid is reacted with an epoxide compound (E) in an amount equivalent to the acid number of the reaction mixture. The compound (E) has at least two epoxide groups per molecule. The compositions are suitable for coating the surfaces of solid substrates.

Radiation-curable compounds containing polyester acrylate

Aqueous polymer compositions and their use as coatings are disclosed. A composition includes at least one polyurethane (meth)acrylate A and at least one compound B having a molecular weight of below 1000 g/mol and having at least two ethylenically unsaturated double bonds per molecule. The polyurethane (meth)acrylates A include the following components: component A1 includes at least one polyisocyanate A1a and at least one diisocyanate A1b; component A2 includes at least one compound having at least one ethylenically unsaturated double bond, and at least one functional group F; component A3 includes at least one neutral polyol including at least one aliphatic, polymeric polyol A3a and at least one low molecular weight diol A3b; component A4 includes at least one compound having at least one ionic or ionizable group I' and at least one functional group F&#x2032;; and component A5 includes at least one poly-C-Calkylene ether.

Aqueous polymer compositions comprising polyurethane (meth)acrylates

The present invention relates to polyurethanes (A) being obtainable by reaction of (a) 15% to 70% by weight of di- or polyisocyanate comprising on average from 1 to 10 allophanate groups and on average from 1 to 10 C&#x2014;C double bonds per molecule, and optionally (b) 0% to 60% by weight of further di- or polyisocyanate, with (c) 5% to 50% by weight of compounds having at least two isocyanate-reactive groups, comprising at least one polycarbonate diol with a molecular weight from 500 to 3000 g/mol weight % ages being based on total polyurethane (A), with the proviso that the total is 100%.

Polyurethanes, dispersions thereof, their preparation and use

The invention relates to aqueous polyurethane dispersions that are curable with UV radiation. The polyurethanes are chain-extended with aromatic, cycloaliphatic or aliphatic diamine compound and cross-linked with aliphatic triamine compound. The polyurethanes are useful dispersions for coating various substrates. The use of the invented dispersions results in high hardness, very good flexibility and good chemical resistance in both clear coats and pigmented coatings before and after UV curing combined with very good adhesion to different substrates.

Radiation curable coating composition based on chain-extended and cross-linked polyurethanes

The present invention relates to storage-stable water-emulsifiable polyurethane acrylates, to a process for preparation thereof and to the use thereof.

Process for preparing water-emulsifiable polyurethane acrylates

The present invention relates to radiation-curable, water-dispersible polyurethane (meth)acrylates, to coating compositions comprising the latter, to the use thereof and to the process for production thereof.

Radiation-curable water-dispersible polyurethane (meth)acrylates

The present invention describes radiation-curable, water-dispersible polyurethane acrylates which feature good grain highlighting, their use, and the method for producing them.

Radiation-curing, water-dispersible polyurethane (meth)acrylates

The present invention relates to dispersible polyurethanes and polyurethane dispersions curable with UV radiation, to a process for preparing them, and to their use.

Radiation-curable, water-dispersible polyurethanes and polyurethane dispersions

Radiation-curable compounds, processes for the preparation thereof, the use thereof and coating materials comprising them and having high scratch resistance, which compounds are polyurethanes comprising allophanate groups and obtained by reaction of di- or polyisocyanates and at least two different compounds, each having at least one group reactive toward isocyanate and at least one unsaturated group capable of free radical polymerization.

Radiation-hardenable compounds

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Ludwigshafen, Germany

Peter Thuery