Allnex Austria Gmbh

Surface Specialities Germany Gmbh & Co. Kg

Oliver Etz

Roland Feola

Richard Hendrikus Gerrit Brinkhuis

Johann Gmoser

Florian Lunzer

Gerald Hobisch

Armin Temel

Paul Oberressl

Bodo Wixmerten

Gerhard Brindöpke

The present invention relates to a coating composition comprising a blend of polyesters, said blend comprising: —from 0.1 to 99.9% by weight of one or more saturated polyesters (A) and —from 99.9 to 0.1% by weight of one or more unsaturated polyesters (B), based on the total weight of polyesters (A) and (B); said one or more (A) and one or more (B) having a Weight Average Molecular Weight (Mw) of at least 15,000 g/mole, as measured by Gel Permeation Chromatograph using tetrahydrofuran as solvent, and a glass transition temperature, as measured by Differential Scanning Calorimetry, according to DIN EN 61006, method A, of at least 60° C. The present invention also relates to a high molecular weight polyester as such, the method for producing a coated substrate, the coated substrate as such, and use of the coating composition.

Coating composition

The invention relates to an aqueous resin dispersion D comprising a mixture of a hydrophilically modified epoxy-based resin P and a resole R, and a co-crosslinker E, to a process for the preparation of the aqueous resin dispersion D, and to a method of use thereof to prepare coating films to prevent corrosion of the coated substrate.

Aqueous coating composition for corrosion protection

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

Condensation products of dihydroxyaromatics A, alone or in mixture with mono- or polyhydroxyaromatics C, with diepoxides or polyepoxides B which have been alkylolated by reaction with aldehydes D and whose alkylol groups may have been etherified with alcohols, a process for preparing them, and a method of use thereof in particular as compositions for coating the inside of foodstuff and beverage packaging forms made from metals.

Binders and a method of use thereof as coating material for metal containers

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Huenstetten, Germany

Oliver Etz