Patents Assigned to Vianova Resins AG
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Patent number: 6350796Abstract: Two-component systems based on aqueous dispersions of hydrophilic epoxy adducts Ah having hydroxyl groups as reactive groups and unblocked difunctional or polyfunctional isocyanates B, said hydrophilic epoxy adducts Ah being selected from cationically stabilized hydrophilic epoxy adducts Ak, anionically stabilized hydrophilic epoxy adducts Aa and also nonionically stabilized epoxy adducts An and zwitterionically stabilized epoxy-amine adducts Aak.Type: GrantFiled: October 26, 1999Date of Patent: February 26, 2002Assignee: Vianova Resins AGInventors: Gert Dworak, Martin Gerlitz, Roland Feola, Manfred Weinberger
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Patent number: 6316539Abstract: Water-dilutable resins ABCD, obtainable by converting aldehyde or ketone resins A, multi-functional isocyanates B, aliphatic acids C, each with at least one acid group and one group that can react with isocyanates to form a urethane or urea structure, and also an aliphatic polyether D, with at least one hydroxyl group per molecule, whereby at least one of the educts C and D is used and if necessary, neutralization with aqueous ammonia or amines, provided a compound according to C is used.Type: GrantFiled: June 16, 2000Date of Patent: November 13, 2001Assignee: Vianova Resins AGInventors: Gerald Hobisch, Peter Tuemmler, Peter Morre
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Patent number: 6265461Abstract: Radiation curable polyester composition AB, capable of forming solutions or dispersions in water of high solid content which can be produced by mixing or pre-condensing a water soluble, radiation-curable emulsifying resin A which contains ester and acid groups and has an acid number from 20 to 300 mg/g and water-insoluble, radiation-curable polymer B containing ester and/or ether groups, wherein resin A is a reaction product of an alkoxylated polyol A1 having at least 3 hydroxyl groups and 3 to 10 oxyalkylene units per molecule, these oxyalkylene units containing 2 to 4 carbon atoms each, with an &agr;, &bgr;-unsaturated carboxylic acid A2 having each a free carboxyl group per molecule, and a carboxylic acid A3 which is at least tri-functional and wherein polymer B is a reaction product of aliphatic, linear, branched or cyclic alcohols B1 with compounds B2, selected from alkylene oxides B21, dicarboxylic acids B22 and aliphatic lactones B23 having 4 to 12 carbon atoms as well as compounds B3 selected from &agType: GrantFiled: August 25, 1999Date of Patent: July 24, 2001Assignee: Vianova Resins AGInventors: Edmund Urbano, Ulrike Kuttler, Martin Gerlitz, Rami-Raimund Awad
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Patent number: 6258897Abstract: Low molar mass polyester polyols having a weight-average molar mass M, of not more than 2000 g/mol, with hydroxyl numbers of from 80 to 300 mg/g and acid numbers of from 5 to 35 mg/g, comprising the stated mole fractions (in %=mol/100 mol) of structural units derived from: a) from 1 to 45% of aliphatic polycyclic polyhydroxy compounds having at least two hydroxyl groups per molecule, b) from 5 to 50% of branched aliphatic acyclic dihydroxy compounds, c) from 30 to 50% of aliphatic cyclic polycarboxylic acids, d) from 0 to 30% of aliphatic acyclic or monocyclic polyhydroxy compounds having three or more hydroxyl groups per molecule, and e) from 0 to 10% of polyfunctional compounds selected from aliphatic linear and monocyclic dihydroxy compounds, aliphatic linear and branched dicarboxylic acids, aromatic dicarboxylic acids and polycaboxylic acids having three or more carboxyl groups per molecule, and also f) from 0 to 10% of monofunctional units selected from monocarboxylic acids and monoalcohols,Type: GrantFiled: May 31, 2000Date of Patent: July 10, 2001Assignee: Vianova Resins AGInventors: Ulrich Epple, Ulrike Kuttler, Claudia Pietsch
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Patent number: 6254937Abstract: Soft feel lacquers comprising water dilutable binders A which possess functional groups, selected from hydroxyl, amino and carboxyl groups, and of curing agents B which have functional groups capable of reacting with the functional groups of the components A, and forming chemical bonds as cross-linking sites, wherein at least one of the components A and B contains a sufficient quantity of aromatic constituent units to ensure that the mass fraction of the aromatic constituent units in relation to the solid matter in the combination of binder and curing agent is not less than 3%.Type: GrantFiled: August 2, 1999Date of Patent: July 3, 2001Assignee: Vianova Resins AGInventors: Markus A. Schafheutle, Birgit Anner, Anton Arzt, Julius Burkl, Gerlinde Petritsch, Joerg Wango
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Patent number: 6228931Abstract: A low-solvent aqueous binder includes: a water-insoluble synthetic resin component A; and an emulsifier resin B in a mass ratio of A to B of from 70:30 to 30:70. The emulsifier resin B is a reaction product of a water-insoluble synthetic resin B1 that includes hydroxyl groups as functional groups, a synthetic resin B2 that includes carboxyl groups as functional groups, and a neutralizing agent for the carboxyl groups of B. The amount of the neutralizing agent is such that the neutralizing agent is able to neutralize from 5 to 200% of the carboxyl groups of B. A process for preparing a low-solvent aqueous binder includes: mixing the water-insoluble synthetic resin component B1 comprising hydroxyl functional groups and the synthetic resin B2 in bulk or dissolved in an organic solvent to form a mixture; removing the solvent by applying subatmospheric pressure and heating until the content of the mixture is at least 85% by mass; maintaining the mixture at a temperature from 90° to 150° C.Type: GrantFiled: March 9, 1999Date of Patent: May 8, 2001Assignee: Vianova Resins AGInventors: Werner Wilfinger, Ingo Kreissmann, Kurt Gossak, Johann Luttenberger
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Patent number: 6207733Abstract: Capped amine hardeners for epoxy resins, which are reaction products of amines A having at least two primary amino groups, cyclic alkylene carbonates B, aliphatic carbonyl compounds C and compounds D having at least two groups which react with hydroxyl groups, such that in the first step, 0.1 to 1 mol of the primary amino groups for each 1 mol of the amine A are converted to hydroxyalkylurethane groups by reaction with the cyclic alkylene carbonate B, and the remaining primary amino groups are converted by reaction with the aliphatic carbonyl compound C in a second step to give ketimine or aldimine groups, and finally in the third step at least two of the molecules formed from A, B, and C are linked through reaction of the hydroxyl groups of the hydroxyalkylurethane groups with compound D. These capped amine hardeners are suitable for formulating water-dilutable monocomponent epoxy resin systems. The amines are released by addition of water, and are available for the curing reaction with the epoxy groups.Type: GrantFiled: May 10, 1999Date of Patent: March 27, 2001Assignee: Vianova Resins AGInventors: Roland Feola, Friedrich Mueller, Johann Gmoser
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Patent number: 6204332Abstract: A water-dilutable coating after base neutralization comprises a polyhydroxyl-functional resin including a condensation resin such as a polyester or alkyd resin, and/or a polyhydroxyl-functional addition resin such as an acrylate resin or the reaction product of a carboxyl-functional acrylate resin and a hydroxyl-functional acrylate resin, and/or an emulsion copolymer, an at least partially monoalcohol-etherified amino resin, and a strong organic or inorganic acid crosslinking catalyst non-ionically blocked with a monoepoxide, a diepoxide or a lactone.Type: GrantFiled: May 18, 1998Date of Patent: March 20, 2001Assignee: Vianova Resins AGInventors: Werner Wilfinger, Ingo Kriessmann, Friedrich Herrmann, Angelika Boehme
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Patent number: 6114434Abstract: Resins AB which are dilutable in water following neutralization and have an acid number of from 25 to 160 mg/g, obtainable by reacting mass fractions, based in each case on the sum of the masses of the solids in the reaction mixture, of A from 30 to 90% of at least one acid-functional polymer selected from polyesters, dimerized and oligomerized unsaturated aliphatic carboxylic acids and polymers of olefinically unsaturated monomers, each having an acid number of from 30 to 240 mg/g, and B from 10 to 70% of at least one water-insoluble aldehyde resin or ketone resin obtainable by condensing ketones, ketones together with aldehydes, ketones with urea or aldehydes with urea, having a hydroxyl number from 20 to 300 mg/g, a softening point of from 60 to 140.degree. C. and a number-average molar mass of from 500 to 3000 g/mol.Type: GrantFiled: October 6, 1998Date of Patent: September 5, 2000Assignee: Vianova Resins AGInventors: Peter Tuemmler, Gerald Hobisch, Hellmuth Kasch
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Patent number: 6087469Abstract: Low molar mass polyester polyols having a weight-average molar mass M.sub.Type: GrantFiled: March 5, 1999Date of Patent: July 11, 2000Assignee: Vianova Resins AGInventors: Ulrich Epple, Ulrike Kuttler, Claudia Pietsch
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Patent number: 6048936Abstract: Acrylate copolymers AB obtainable by polymerization of a monomer mixture A in an organic solvent or in bulk, the monomer mixture A comprising proportions by mass of from 25 to 80% of C.sub.1 -C.sub.20 -alkyl (meth)acrylates whose alkyl radicals can be linear, branched or cyclic, from 1 to 28% of C.sub.2 -C.sub.20 -hydroxyalkyl (meth)acrylates whose hydroxyalkyl radicals can be linear, branched or cyclic, from 0.5 to 20% of .alpha.,.beta.-unsaturated carboxylic acids and from 0 to 55% of aromatic vinyl compounds or aliphatic vinyl esters and vinyl ethers, vinyl halides, olefinically unsaturated ketones or aldehydes, esters of glycidyl alcohol or methylglycidyl alcohol with olefinically unsaturated carboxylic acids, or nitriles of .alpha.,.beta.Type: GrantFiled: August 7, 1998Date of Patent: April 11, 2000Assignee: Vianova Resins AGInventors: Ulrich Epple, Gert Dworak, Ulrike Kuttler, Claudia Pietsch
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Patent number: 6008291Abstract: Viscosity-stabilized aqueous polyester dispersions comprising an acid-functional polyester resin a, neutralizing agent b for the polyester resin a, the amount of neutralizing agent being sufficient to convert from 10 to 200% of the amount of substance of acid groups in the polyester resin a into salt groups by means of the amount of neutralizing agents added, the neutralizing agents being selected from ammonia and organic amines and also alkali metal hydroxides and alkaline earth metal hydroxides; if desired, an organic auxiliary solvent, silica in an amount such that the mass of SiO.sub.2 is from 0.1 to 50% of the mass of the polyester resin, and water. The dispersions are useful in coating compositions.Type: GrantFiled: November 13, 1998Date of Patent: December 28, 1999Assignee: Vianova Resins AGInventors: Manfred Weinberger, Johann Billiani
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Patent number: 5990192Abstract: Radiation-curable water-dilutable urethane resins obtainable by reacting cycloaliphatic and/or aromatic diisocyanates with a mixture of a (meth)acryloyl-containing dihydroxy compound in an amount such that the amount of reactive hydroxyl groups present therein is from 0.2 to 0.6 mol, and with a tri or tetrahydric polyol which has been partly esterified with (meth)acrylic acid and has a residual average hydroxyl functionality of from 1.0 to 1.4 in the molecule, in an amount such that the amount of the reactive hydroxyl groups is from 0.4 to 0.8 mol, the sum of the amounts of the reactive hydroxyl groups always being 1.0 mol, and from 40 to 60% of the isocyanate groups being converted into urethane groups, and reacting the resulting intermediate with an aliphatic saturated monocarboxylic acid having at least two hydroxyl groups in an amount such that the amount of the reactive hydroxyl groups is from 0.Type: GrantFiled: April 9, 1998Date of Patent: November 23, 1999Assignee: Vianova Resins AGInventors: Martin Gerlitz, Rami-Raimund Awad, Ulrike Kuttler, Thomas Fraydl, Martin Leitner, Andreas Kocsar
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Patent number: 5936013Abstract: The invention pertains to a method for producing preparations containing bismuth salts, wherein bismuth oxide is reacted in a specific way with lactic acid and the resulting mixture of bismuthyl lactate and bismuth lactate is dispersed in a binder. These preparations are used as catalytic components in electrophoretic paints to be applied by cathodic deposition. Dipping paints of this kind have excellent application and film properties. This obviates the need to use lead and tin compounds as catalysts.Type: GrantFiled: September 19, 1997Date of Patent: August 10, 1999Assignee: Vianova Resins AGInventors: Roland Feola, Brigitte Burgmann, Franz Kurzmann
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Patent number: 5905103Abstract: The invention relates to a process for the preparation of pigment paste resins for cathodically depositable coating compositions, wherein diepoxide compounds which contain polyoxyalkylene structures and alkyl and/or alkylene and/or hydroxyalkyl radicals having more than 3 carbon atoms are first reacted to form epoxy resin/amine adducts and final products with oxazolidine structures are obtained by a partial or complete reaction of secondary amino groups with formaldehyde.Type: GrantFiled: March 15, 1993Date of Patent: May 18, 1999Assignee: Vianova Resins, AGInventors: Helmut Honig, Georg Pampouchidis, Willibald Paar, Herbert Matzer, Manfred Valtrovic
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Patent number: 5596065Abstract: Process for the preparation of water-dilutable urethane resins and use of the so produced urethane resins, for example, as binders for coating materials which can be crosslinked by free-radical polymerization.Type: GrantFiled: July 26, 1995Date of Patent: January 21, 1997Assignee: Vianova Resins AGInventors: Martin Gerlitz, Rami-Raimund Awad, Thomas Fraydl
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Patent number: 5554700Abstract: Catalysed, cationic compositions which contain one or more catalysed, cationic binders which can be diluted in water after being protonated and which contain one or more bismuth salts of hydroxycarboxylic acids are disclosed. The bismuth salts of lactic acid and dimethylolpropionic acid are particularly preferred, and the compositions are useful in cathodically precipitated paints.Type: GrantFiled: November 28, 1994Date of Patent: September 10, 1996Assignee: Vianova Resins AGInventors: Rudolf Schipfer, Gerhard Schmoelzer, Edmund Urbano