Basf Farben and Fasern Ag

Basf Farben + Fasern Ag

Other

Basf Lacke+farben Ag

Basf Farken & Fasern Ag

Basf Farben & Fasenn A.g.

Horst Diefenbach

Michael Geist

Arnold Dobbelstein

Wolfgang Batzill

Eberhard Schupp

Hans-Dieter Hille

Manfred Dangschat

Jurgen Sadlowski

Deiter Schmitt

Theo Laser

The invention relates to water-dispersible binders for cationic electrocoating finishes, which binders are reaction products of (A) low molecular weight epoxide resins containing aromatic groups and having an epoxide equivalent weight of below 375, (B) aliphatic and/or alicyclic polyfunctional alcohols and/or carboxylic acids having a molecular weight of below 350, (C) if appropriate up to 60% by weight, relative to the total binder, of polyfunctional alcohols, carboxylic acids and/or SH compounds having a molecular weight of 500-5,000 and (D) primary, secondary and/or tertiary amines and/or salts thereof or a sulfide/acid mixture or a phosphine/acid mixture, the reaction product of A and B containing 10-45% of aromatic groups, calculated as the phenylene group. By means of the binders, a higher layer thickness is obtained in electrocoating.

Water dispersible binders for cationic electrocoating finishes and a

Process for the preparation of polyester resin

The invention relates to water-dispersible binders which are intended for cationic electropaints and are based on reaction products which are formed from modified epoxy resins and primary and/or secondary amines and which can, if desired, also contain crosslinking agents, pigments, flow-control agents and other customary auxiliaries. They contain as reaction products those which have been prepared by reacting

Water-dispersible binders for cationic electropaints, and a process for

A heat-hardenable binder mixture based on organic resins comprises an organic resin having primary and/or secondary and, if appropriate, also additional tertiary amino groups and a crosslinking agent based on an organic compound which contains at least 2 .beta.-hydroxyalkyl ester groups. The binder mixture can additionally contain pigments, fillers, crosslinking catalysts, corrosion inhibitors and other paint auxiliaries. The binder mixture is used in a process for preparing coatings by applying a coating agent in the form of a film to a substrate and subsequently hardening the film by stoving.

Heat-hardenable binder mixture of amino resin and hydroxy epoxides

The invention relates to binders for cathodically depositable coating compositions for the electrocoating lacquering process using cationic synthetic resins, which binders have been obtained by polymerizing (A) 5 to 95% by weight of ethylenically unsaturated polymerizable monomers in the presence of (B) 95 to 5% by weight of a cationic synthetic resin in an aqueous phase, the total amount of the components (A) and (B) being 100%. Esters of acrylic acid and/or methacrylic acid are preferable for use as component (A). The invention also relates to a process for preparing the binders and to their use for cathodically depositable electrocoating lacquers.

Binders for cathodically depositable coating compositions, a process for

The invention relates to a heat-hardenable binder mixture which comprises

Heat-hardenable binder mixture

Water-dispersible binders for cationic electrocoating finishes, and

The invention relates to a self-crosslinking heat-curable binder, in particular for electropaints, which is based on an organic synthetic resin which contains primary and/or secondary and, if desired, also tertiary amino groups and esterified carboxyl groups and is water-dilutable due to partial or complete neutralization with acids. The esterified carboxyl groups are activated in the alcohol component by a substituent which induces a negative inductive effect.

Self-crosslinking heat-curable binder

A process for coating an electrically conductive substrate, connected as the cathode, with a cationic coating agent from an electrocoating bath and subsequently hardening the coating, is characterized in that an aqueous dispersion made from:

Process for coating an electrically conductive substrate

The invention relates to a self-crosslinking heatcurable binder, in particular for electropaints, which is based on an organic synthetic resin which contains primary and/or secondary and, if desired, also tertiary amino groups and esterified carboxyl groups and is water-dilutable due to partial or complete neutralization with acids. The esterified carboxyl groups are activated in the alcohol component by a substituent which induces a negative inductive effect.

The invention relates to a selfcrosslinking heat-hardenable binder, in particular for electropaints, which is based on an organic synthetic resin which contains hydroxyl groups and esterified carboxyl groups in the form of carbalkoxymethyl ester groups and is water-dilutable by partial or complete acid-neutralization of amino groups present in the resin.

Selfcrosslinking heat-hardenable binder

The invention relates to water-dispersible binders which are intended for cationic electropaints and are based on reaction products which are formed from modified epoxy resins and primary and/or secondary amines and which can, if desired, also contain crosslinking agents, pigments, flow-control agents and other customary auxiliaries. The reaction products have been prepared by reacting

A process for coating an electrically conductive substrate, connected as the cathode, with a cationic coating agent from an electrocoating bath and subsequently hardening the coating, is characterized in that an aqueous dispersion made from

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Nottuln, Germany

Horst Diefenbach