E.i. Dupont De Nemours and Company

Martin Wulf

Oliver Reis

Carmen Flosbach

Peter Frese

Karl-Friedrich Doessel

Matthias Kimpel

Volker Rekowski

Rudolf Wilhelm Zentel

Thomas Fey

Uwe Wilkenhoener

Klaus Taennert

Paer Winkelmann

Marc Egen

Richard Douglas Bauer

Phu Qui Nguyen

Helmut Loeffler

Juergen Peter Stropp

Christoph Moelzer

Gerhard Pech

Dmitry Chernyshov

Dimitry Chernyshov

The invention is directed to a process for the production of a scratch-resistant vehicle coating comprising the following steps: I. applying a top coat layer of colour- and/or special effect-imparting base coat and a transparent clear coat or of a pigmented one-layer top coat onto a prior coating, II. optionally, applying a sealing layer of a transparent sealing coat onto the top coat layer applied in step I and III. curing the top coat layer applied in step I and the sealing layer optionally applied in step II, wherein the transparent clear coat or the pigmented one-layer top coat and/or the transparent sealing coat contains modified nanoparticles based on an element-oxygen network, the elements are selected from the group consisting of aluminium, silicon, tin, boron, germanium, gallium, lead and transition metals including the lanthanides and actinides and wherein the modified nanoparticles being produced by treating the (unmodified) nanoparticles with compounds of the general formula I Me(ORI)and/or the general formula II Me(OCOR), wherein Rmeans an alkyl, aryl and/or aralkyl residue and Me means zirconium and/or titanium.

Process for the production of a scratch resistant vehicle coating

A process for repairing a vehicle coating, comprising the following steps:

Process for vehicle repair coating

The invention relates to modified nanoparticles based on pyrogenic silica which are produced by treating pyrogenic silica with compounds of the general formula I Me(OR), and/or of the general formula II Me(OCOR), wherein Rmeans an alkyl, aryl and/or aralkyl residue and Me means zirconium and/or titanium and to coating compositions containing the modified nanoparticles.

Silica nanoparticles modified with organometallic compounds of zirconium and/or titanium

A process for the production of a coating layer from a thermally curable coating composition on a substrate, comprising the successive steps:

Process for the production of paint coating layers

A process for the production of a coating layer from a thermally curable coating composition on a substrate, comprising the successive steps: wherein the supply of thermal energy onto the coating proceeds prior to and/or after removal of the backing foil.

The invention relates to a process for the production of decorative coatings, comprising the following steps:

Process for the production of decorative coatings on substrates

The invention relates to an ink jet ink composition containing monodisperse polymer particles to provide an opaque ink with improved color brilliancy, ink jet ink sets based on this composition, and a methods for ink jet printing with the ink and/or ink jet sets.

Ink jet ink composition

A multi-layer coating for coating a substrate surface, comprising at least one color-imparting layer, which contains three-dimensional photonic crystals as effect-imparting interference pigments.

Multi-layer coating

Electrodeposition coating process

The invention is directed to a process for coating substrates by applying at least one coating composition to an optionally precoated substrate and then curing the coating layer(s) thus obtained, wherein at least one of the coating layers is produced from a coating composition which contains a binder system having olefinic double bonds capable of free-radical polymerization and having reactive functional groups within the meaning of addition and/or condensation reactions, the resin solids of the coating composition having a C&boxH;C-equivalent weight from 300 to 10,000, preferably from 300 to 8,000, and curing of this (these) coating layer(s) is carried out by irradiation with NIR radiation in the wave length range 760-1500 nm.

Process for coating substrates

A process for the production of a multi-layer coating, wherein a primer layer which is electrically conductive in the at least partially cured state is applied by electrodeposition from an electrodeposition coating agent (I) to an electrically conductive three-dimensional object, at least partially cured exclusively by the action of near infra-red radiation substantially only on the surfaces of the object exposed to the radiation, and an additional coating layer is applied by electrodeposition from an electrodeposition coating agent (II) which is different from electrodeposition coating agent (I), and then this additional coating layer as well as completely uncured or incompletely cured area parts of the primer layer produced from electrodeposition coating agent (I) are cured.

Process for multi-layer coating

The process of this invention applies at least one coating composition to an optionally precoated substrate and then cures the thus obtained coating layer(s), whereby at least one of the coating layers is prepared from a coating composition that can be chemically cross-linked solely by radical polymerization of olefinic double bonds, the resin solid of the composition has a C&boxH;C equivalent weight from 100 to 10,000, preferably from 100 to 5,000, and the curing of the coating layer(s) is carried out with NIR radiation in the wave length range from 760-1500 nm.

Growing community of inventors

Langenfeld, Germany

Martin Wulf