Bayer Aktiengesellschaft

Bayer Akteingesellschaft

Wilfried Zecher

Rudolf Merten

Willi Dunwald

Klaus Reinking

Jurgen Lewalter

Rolf Dhein

Ludwig Rottmaier

Dieter Arlt

Wilfried Haese

Bernhard Schulte

Aziz El-Sayed

Werner Clarenz

Rolf-Volker Meyer

Burkhard Kohler

Gerhard D Wolf

Henning Giesecke

Werner Waldenrath

Frank Gerald Kleiner

Lutz Schrader

Aziz E Sayed

Wolf-Dieter Last

The invention relates to a process for the production of polyamide imides from diimidodicarboxylic acids, trimellitic imidocarboxylic acids and diisocyanates and to their use as moldings, films and binders for paints.

Production of polyamide imides

The invention relates to aliphatic-aromatic polyamide-imides and their use for the production of shaped articles.

Aliphatic-aromatic polyamide-imides

To improve the adhesive strength of electrolessly deposited metal deposits on surfaces of polyimide moulded bodies, the latter are treated with an activator formulation which, in addition to solvents, fillers and organometallic activators, preferably contains 5-25% of a polyimide as binder.

Process for improving the adhesive strength of electrolessly deposited

This invention relates to thermoplastic polyimides of 2,2-bis-phtalic acid anhydro-(4)-propane and 2,2-bis-(4-aminophenoxyphenyl-propane.

Special polyimides as thermoplasts

This invention relates to the use of new special polyimides for the production of cast films and coatings.

Use of special polyimides as cast films and coatings

Thermoplastic polyamidimides useful for high temperature coating and having exceptional tensile strength and dimensional stability to heat are produced by condensation of organic polyisocyanates, such as aliphatic, aliphatic-aromatic or aromatic diisocyanates, with cyclic polycarboxylic acid anhydrides and lactams or polyamides carried out at temperatures of from 0.degree. to 400.degree. C. and optionally in a solvent together with from 0.1 to 10 mol-%, preferably from 0.2 to 4 mol-%, of an imidocarboxylic acid corresponding to the following formula ##STR1## wherein R.sub.1 and R.sub.2 represent aliphatic, aliphatic-aromatic or aromatic groups and R.sub.1 carries at least one cyclic anhydride group or carboxyl group in addition to the cyclic imide group.

Polyamidimides having modified end groups

This invention relates to the use of mixtures of aliphatic-aromatic polyamidimides and polyamides.

Aliphatic-aromatic polyamidimides containing polyamides

This invention relates to a process for the production of polyamide imides and the use thereof as plastics materials.

Process for the production of polyamide imides

This invention relates to the use of polyamide imides as thermoplasts.

Polyamide imides produced from either lactams or polyamides with

This invention relates to a new process for the production of polyamide imides.

Process for the production of polyamideimides from polyisocyanates,

The invention relates to a process for the preparation of aliphatic-aromatic polyamide-imides in the absence of phenols.

Process for the preparation of aliphatic-aromatic poly-amide-imides in

This invention relates to new polyamide imides and to the use thereof as thermoplasts.

Polyamideimides prepared by reacting either lactams or polyamides with

Polyamideimides produced from either lactams or polyamides with

This invention relates to certain new aliphatic-aromatic polyamidoimides suitable for use as non-clouding electroinsulating lacquers and duroplasts.

Growing community of inventors

Leverkusen, Germany

Wilfried Zecher