Vianova Kunstharz A.g.

Solutia Austria Gmbh

Allnex Austria Gmbh

E.i. Dupont De Nemours and Company

Vianova Resins Ag

Cytec Surface Specialties Austria Gmbh

Surface Specialties Austria Gmbh

Johann Gmoser

Roland Feola

Willibald Paar

Michael Honel

Rudolf Schipfer

Wolfgang Daimer

Helmut Honig

Gert Dworak

Florian Lunzer

Maximilian Friedl

Georg Pampouchidis

Ulrike Kuttler

Michael Gobec

Werner Staritzbichler

Helmut Hoenig

Oliver Etz

Manfred Gogg

Willi Paar

Rosemaria Grasboeck

Manfred Krassnitzer

Robert Thausz

Friedrich Mueller

Alexander Spöck

Norbert Cvetko

Rosemaria GRASBÖCK

This invention relates to a hardener composition for an epoxy resin based two-pack coating formulation wherein the hardener composition comprises moieties having at least one structural element of formula &#x3e;N-D1-NH2, and moieties having at least one structural element of formula &#x3e;N-D2-NH&#x2014;C(O)-Q, wherein D1 is a bivalent group, D2 is a bivalent group, and Q is a univalent group, to epoxy resin based two-pack coating formulations comprising at least one epoxy resin which is a polymer containing, on average, at least two epoxide groups per molecule, and the hardener composition, and at least one of diglycerides which are esters of glycerol with two molecules of fatty acid, monoglycerides which are esters of glycerol with one molecule of fatty acid, or glycerol, or the reaction products of at least one of diglycerides or monoglycerides or glycerol with organic compounds having at least one reactive group selected from the group consisting of acylesters, acylanhydrides, isocyanates, epoxides, cyclocarbonates, and aziridines, and to the use of these epoxy resin based two-pack coating formulations as protective coatings on metallic and mineral substrates.

Hardener composition for epoxy resin based coating compositions, process for their preparation and use thereof

The invention relates to cationic water-dilutable binders comprising a water-soluble bismuth salt or chelate complex B, and a chain-extended epoxy-amine adduct EA which comprises moieties derived from epoxide compounds E2 having at least two epoxide groups per molecule, low molar mass epoxide compounds E3 having two epoxide groups per molecule, amidoamines A41 having at least one amide group and at least one amino group, made from amines A1 having at least two amino groups per molecule and a fatty acid A4, and one or more further amines A1, an amine A2 which has at least one secondary amino group per molecule, an amine A3 having at least one tertiary, and at least one primary amino group per molecule, fatty acids A4, and phenolic compounds A5 having at least two phenolic hydroxyl groups, to a process for their preparation, and to the use thereof as corrosion protection coatings.

Cationic water-dilutable binders

A polyester AB is disclosed comprising moieties derived from di- or polyfunctional organic acid compounds A and moieties derived from di- or polyfunctional organic hydroxy compounds B, wherein the compounds A comprise 'hard' acid compounds Al selected from the group consisting of isophthalic acid, trimellithic acid anhydride, hexahydrophthalic acid, cyclohexane-1,4-dicarboxylic acid, and tetrahydrophthalic acid, and soft acid compounds A2 selected from the group consisting of adipic acid, dimer fatty acids, and sebacic acid, and the compounds B comprise 'hard' hydroxyfunctional compounds selected from the group consisting of trimethylolpropane, 1,2-bishydroxymethyl cyclohexane, and 1,2-dihydroxy-propane, and soft hydroxyfunctional compounds B2 selected from the group consisting of 1,4-butanediol, 1,6-hexanediol, 2,2'-dihydroxydiethyl ether, and 1,2-bis(2-hydroxypropoxy)-propane, and coating compositions prepared from this polyester together with crosslinkers selected from the group consisting of isocyanates, capped isocyanates, aminoplast crosslinkers, and phenoplast crosslinkers, as well as their application in coating of metal substrates.

Polyester resins

This invention relates to binder mixtures comprising mass fractions of from 70% to 98% of chain-extended epoxy amine adducts A and from 2% to 30% of carboxy functional polyesters B that contain a limited amount of aromatic constituents in mass fractions of up to 15% and have an acid number of from 4 mg/g to 50 mg/g, a method of making these binder mixtures, and a method of use thereof in coatings for metals, wood, cardboard, plaster, and concrete.

Aqueous coating binders for corrosion protection, wood and concrete

Adducts ABC of epoxy resins A and reaction products BC of epoxy resins B with phosphorus-derived acids C, and mixtures of such adducts, containing a mass fraction of not more than 5% of unreacted acid C, the reaction products BC containing at least one acidic phosphoric ester group or phosphonic ester group per molecule, process for preparing them, and their use for preparing physically drying and also one-component and two-component coating materials.

Adducts of epoxy resins and phosphorus-derived acids and a process for their preparation

Aqueous curing agents for epoxy resin dispersions comprising mixtures, adducts and/or salts of partly esterified organic phosphoric acids A1 or partly esterified phosphonic acids A2 with organic amines B selected from the group consisting of epoxide-amine adducts B1, Mannich bases B2, polyaminoamides B3, and condensation products B4 of diamines or polyamines B42 with di- or polyhydroxyaromatics B41, their preparation and a method of use comprising mixing thereof with aqueous epoxy resin dispersions in particular for coating metals as corrosion protection

Aqueous curing agents for aqueous epoxy resin dispersions

Binders for aqueous corrosion protection systems, comprising products A&prime;ABC of reaction of epoxy resins, fatty acids, and amines, having a number average molar mass M of at least 5000 g/mol, obtained by reacting epoxide compounds A&prime; containing at least two epoxide groups per molecule and reaction products ABC of epoxide compounds A, fatty acids B, and amines C, wherein, where appropriate, the epoxide compounds A&prime; and/or the epoxide compounds A have been modified prior to further reaction, in whole or in part, by reaction with compounds D containing at least one acid group or hydroxyl group reactive toward epoxide groups, and wherein, where appropriate, the amines C have been modified prior to further reaction, in whole or in part, by reaction with aliphatic or aromatic monoepoxide compounds A&Prime; or mixtures thereof.

Product A'ABC of epoxy resins A' and product of polyepoxides A, fatty acids B and amines C

Water-dilutable binders which are self-crosslinking at room temperature, comprising reaction products ABF with epoxy-amine adducts A and formaldehyde resin formers B selected from phenols B1, (substituted) ureas B2, melamine B3, guanamines B4, and mixtures of said resin formers, with formaldehyde F or compounds which give off formaldehyde under the reaction conditions, may be formulated, following at least partial neutralization, to give aqueous coating materials which give coatings affording outstanding corrosion protection.

Self-crosslinking water-dilutable binders

Water-dilutable, cationically stabilized epoxy resins ZYX are obtained by reacting, in the first stage, aromatic or aliphatic epoxide compounds Z with aliphatic amines Y to form epoxy-amine adducts ZY which are neutralized and then in aqueous dispersion are reacted in a second stage with a further epoxy resin X. The resins ZYX may be formulated without additional curatives to give aqueous coating materials which exhibit a good corrosion protection effect.

Aqueous binders based on epoxy resins

Aqueous binder mixtures comprising a water-dilutable resin and a water-miscible hydroxy urethane have an increased mass fraction of solids and may be formulated in combination with curatives which are active at elevated temperature to give automobile primer-surfacer materials.

Aqueous binder mixture

Aqueous two-component binder systems, its first component comprising a water-soluble polyester AB and its second component comprising a blocked polyfunctional isocyanate C, where the blocking agent C2 is selected from the group consisting of primary alcohols C21 having 3 to 10 carbon atoms, in which the carbon atom adjacent to the hydroxymethylene group carries a double bond, oximes C22 of linear, branched or cyclic aliphatic ketones having 3 to 15 carbon atoms, CH-acidic compounds C23, in which the carbon atom carrying the active hydrogen carries at least one further group selected from R &mdash;CO&mdash;, R &mdash;O&mdash;CO&mdash;, &mdash;NO and R &mdash;SO &mdash;, R , R and R independently of one another may be linear, branched or cyclic alkyl groups having 1 to 18 carbon atoms or aryl groups having from 5 to 15 carbon atoms, and NH-acidic compounds C24.

Two-component systems based on water-soluble polyesters and blocked isocyanates for aqueous baking varnishes

Novel alkaline polymeric binders, preferably amino epoxy binders, for use in cathodic electrodeposition coatings have a number average molecular mass of 1000 to 3000, an amine value of 150 to 250 mg KOH/g binder and 50 to 230 milliequivalents/100 g binder of beta-hydroxyalkyl urethane groups of the formula HOC H OC(O)NH&mdash; where n&equals;2 to 3, as well as processes for making such binders; aqueous compositions, particularly cathodic electrodeposition compositions containing such binders (which provide improved throwing power); and process of using such compositions, particularly on automotive bodies and parts thereof, are disclosed.

Binders for use in cathodic electrodeposition coatings, process for their preparation and cathodic electrodeposition coating compositions containing same

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. Coatings formulated on the basis of this system are characterized by a very low content of auxiliary solvent. The cured coating films show outstanding leveling and film properties.

Capped amines as hardeners for monocomponent (1c) epoxy resin systems which can be diluted with water

A process for the preparation of organotitanium compounds and to their use as crosslinking catalysts in cathodically depositable electro-deposition coating materials is described. The organotitanium compounds are obtained by first carrying out partial transesterification of tetraalkyl orthotitanates with alkylene glycols which are capable of forming chelates, and then completing the transesterification of the resulting intermediate with hydroxyl compounds based on modified mono- and/or diepoxide compounds. Cathodically depositable electrodeposition coating materials which contain the organotitanium compounds prepared in accordance with the invention provide, after curing in a temperature range from 160.degree. to 180.degree. C., coating films having excellent stability and the like properties, without the need to use additional crosslinking catalysts based on heavy metals such as lead or tin.

Process for the preparation of organotitanium compounds and their use in

This invention relates to a process for the preparation of self-crosslinking cationic paint binders which can be diluted with water after protonation and are based on modified aminoalkylation products of phenols; to the binders prepared by this process and to their use for formulating water-dilutable paints, in particular electrodeposition paints which can be deposited cathodically. The process is characterized in that an aminoalkylation product of a phenol containing at least one secondary amino group is reacted with epoxide compounds, and after temperature treatment, the reaction product is reacted with partly blocked isocyanate compounds. The process permits the use of blocking agents which allow stoving temperatures in the range of 130 to 150.degree. C.

Growing community of inventors

Graz, Austria

Johann Gmoser