Solutia Austria Gmbh

Allnex Austria Gmbh

Cytec Surface Specialties Austria Gmbh

Surface Specialties Austria Gmbh

Cytec Austria, Gmbh

Markus Schafheutle

Anton Arzt

Gerlinde Petritsch

Julius Burkl

Joerg Wango

Martina Glettler

Rudolf Jedlicka

Hannelore Gsoell

Ulrike Kuttler

Armin Temel

Ursula Meisner

Thomas Schonbacher

Renate Pittermann

Rami-Raimund Awad

Thomas Schönbacher

Jörg Wango

Susanne Dellinger

Gudrun Garber

Robert Harrer

Birgit Anner

Susanne Neumayer

Andreas Lerch

Hannelore Gsöll

This invention relates to copolymers AB having moieties derived from vinyl-terminated polysiloxanes A with more than one vinyl group bound to the polysiloxane, and moieties derived from two or more alkyl esters B of an olefinically unsaturated carboxylic acid, wherein at least two different alkyl esters B1 and B2 are used; the alkyl group of the first alkyl ester B1 of an olefinically unsaturated carboxylic acid has from one to five carbon atoms, the alkyl group of the second alkyl ester B2 of an olefinically unsaturated carboxylic acid has from six to thirty carbon atoms, and moieties derived from at least one hydroxyalkyl ester B3 of an olefinically unsaturated carboxylic acid, the ester B3 having at least one hydroxyl group in the alkyl group, and from two to six carbon atoms in the alkyl group, to a process for their preparation, and to a method of use thereof as flow modifiers in coating compositions.

Flow modifiers for coating compositions

The invention relates to an aqueously dispersible polyurethane having a specific amount of substance of hydroxyl groups, &#x2014;OH, of at least 0.6 mol/kg, and additionally satisfying at least two of the following conditions: a) a degree of branching measured as specific amount of substance of tertiary and/or quaternary aliphatic carbon atoms of from 0.01 mol/kg to 0.5 mol/kg, b) a specific amount of urea groups &#x3e;N&#x2014;CO&#x2014;N&#x3c; of from 0.8 mol/kg to 2 mol/kg, and c) a specific amount of substance of hydroxyl groups, &#x2014;OH, of from 1 mol/kg to 4 mol/kg, wherein in each case the specific amount of substance is based on the mass of the polyurethane, a process for the preparation thereof, and a method of use thereof.

Aqueously dispersible polyurethane

A two-pack coating composition comprising curing agents selected from the group consisting of non-blocked poly-functional isocyanates I, polyaziridines Z, and carbodiimides Y, and an aqueously dispersed polyurethane U wherein the polyurethane U comprises building blocks derived from hydroxyl group containing unsaturated fatty acids B21, a process for the production of the polyurethane U, and a method of use thereof in combination with the said curing agents in preparing coating compositions which are particularly useful for wood.

Oil based aqueous polyurethane dispersions

This invention relates to a self-crosslinking binder for coating compositions comprising an aqueously dispersed resinous component A having at least one carbonyl group of the ketone or aldehyde type per molecule, and a component B having at least two hydrazine or hydrazide groups per molecule, and at least one structural unit &#x2014;NR&#x2014;NR&#x2014;CHR&#x2014;CHR&#x2014;NH&#x2014;R(I) where the radicals R, R, Rand Rare each individually selected from the group consisting of a hydrogen radical, and a linear or branched alkyl radical having from 1 to 10 carbon atoms, Rand Rmay additionally be selected from the group consisting of aryl and alkylaryl radicals having from 6 to 15 carbon atoms, and from oxy alkyl radicals with from 1 to 10 carbon atoms, where oxy groups may be inserted into the alkyl chain, or at the end of an alkyl chain, and Ris selected from the group consisting of a hydrogen radical, alkyl radicals which may be linear, branched or cyclic and may have from 1 to 10 carbon atoms, and residues of the formula &#x2014;(CH)&#x2014;CO&#x2014;O&#x2014;X, where n is an integer of from 1 to 6, and X is the residue of a polyhydric alcohol or phenol, and a process for its preparation.

Self-crosslinking binders

The invention relates to self-crosslinking aqueous polyurethane dispersions containing a crosslinking agent I selected from diamones I1 and dihydrazides I2, and polyurethanes comprising structural elements derived from polyisocyanates A, polyols B having a number average molar mass Mof at least 400 g/mol, compounds D comprising at least two groups which are reactive compared to isocyanate groups and at least one group able to form anions, low-molecular polyols E that carry no other reactive groups compared to isocyanate groups, compounds F containing at least one group which is reactive compared to isocyanate, and at least one aldehyde-type or ketone-type carbonyl group, and compounds G that are monofunctional compared to isocyanates or contain active hydrogen with different capabilities of reaction and are different from the compounds E. The invention also relates to methods for the production of said dispersions, and coating agents containing the same.

Self-crosslinking aqueous polyurethane dispersions

Water-dilutable polyurethane dispersions comprising structural units derived from polyisocyanates A, polyols B having a number-average molar mass Mof at least 400 g/mol, compounds D that contain at least two groups reactive towards isocyanate groups and at least one group capable of anion formation, low molar mass polyols E that do not carry any further groups reactive towards isocyanate groups, compounds G that are monofunctional towards isocyanates or contain active hydrogen of different reactivity and that are different from the compounds E, characterised in that the polyols B contain a mass fraction of polycarbonate polyols Bof at least 85%, and the use thereof in coating compositions

Water-dilutable polyurethane dispersions

Aqueous stoving enamels containing resins A which have hydroxyl groups and are made hydrophilic by partially neutralized acid groups, and highly etherified aminoplasts B, characterised in that the aqueous solutions or dispersions of the resin have a pH value of 6 or below, a method for the preparation thereof, and a method of use comprising coating thermally sensitive substrates.

Aqueous stoving enamels

A water-dispersible polyurethane resin comprising building blocks derived from polyisocyanates A, polyols B having a number-average molar mass Mof at least 400 g/mol, where appropriate, low molar mass polyols C with Mbelow 400 g/mol, compounds D which possess at least two groups which are reactive toward isocyanate groups and at least one group which is capable of forming anions, low molar mass polyols E which in relation to isocyanate groups carry no further reactive groups, compounds F, which are monofunctional toward isocyanates or contain active hydrogen of different reactivity and are different from the compounds E and also, where appropriate, compounds G, which are different from B, C, D, E and F and contain at least two groups which are reactive with NCO groups, wherein the number-average molar mass Mof the polyurethane resin is at least 10 kg/mol, its weight-average molar mass Mis at least 20 kg/mol, and its acid number is from 20 to 50 mg/g; a process for its preparation; and its use as a binder.

High molar mass polyurethane dispersions

Coating composition especially for preparing automotive surfacers, comprising a condensation product A of a carboxyl-containing resin A1 and a hydroxyl-containing resin A2, a curing agent C which becomes active only at an elevated temperature of at least 80&deg; C., and a high molecular mass polyurethane B.

Coating composition

Storage-stable polyurethane dispersions preparable by reacting polydienes A which carry at least two isocyanate-reactive groups, polyols B which carry at least one acid group, polyfunctional isocyanates C and chain extenders D, wherein the acid groups of the polyols B are neutralized to a fraction of from 60 to 95%, processes for preparing them, and their use for producing elastic coatings.

Aqueous polyurethane dispersions containing polybutadiene units

Water dilutable binder for soft feel coating materials, comprising an aqueous dispersion of a hydroxyl-containing polyester-urethane A, preparable by reacting a polyester A1 with hydroxyl groups as functional groups, formed from difunctional or polyfunctional carboxylic acids A11 and difunctional or polyfunctional alcohols A12, with a polyfunctional isocyanate A2, with a compound A3 having at least one isocyanate-reactive group and at least one acid group, an aqueous solution or dispersion of a triazine resin B, wherein the glass transition temperature of the polyester-urethane A is between &minus;70 and &minus;20&deg; C. and wherein the hydroxyl number of the polyester-urethane A is from 10 to 120 mg/g, a process for its preparation, and its use in soft feel coating materials for plastics, metals, glass, wood, textiles, and leather.

Water dilutable binders for soft feel coating materials

Oxidatively drying aqueous polyurethane dispersions obtainable by reacting drying and/or simidrying oils with low molar mass hydroxy compounds having two or more hydroxyl groups to give compounds containing on average at least one hydroxyl group and at least one radical of a fatty acid having at least one olefinic double bond, then reacting these compounds together with high molar mass polyols, compounds having at least two isocyanate-reactive groups and at least one acid or cation-forming group with polyfunctional isocyanates to give prepolymers having a mass fraction of unreacted isocyanate groups of from 0.1 to 4%, then neutralizing the product and transferring the utilized product to the aqueous phase, a process for preparing them and their use for coating wood.

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Graz, Austria

Markus Schafheutle