Bayer Materialscience Ag

Covestro Deutschland Ag

Bayer Aktiengesellschaft

Allnex IP S.a.r.l.

Bayer Intellectual Property Gmbh

Covestro Intellectual Property Gmbh & Co. Kg

Holger Mundstock

Jan Weikard

Wolfgang Fischer

Jörg Schmitz

Dorota Greszta-Franz

Frank Richter

Michael Sonntag

Christophe Detrembleur

Christophe Dètrembleur

Christoph Gürtler

Marc Schreiber

Christian Wamprecht

Lutz Schmalstieg

Markus Mechtel

Meike Niesten

Robert Maleika

Jörg Büchner

Dirk Pophusen

Herman Van Der Vegt

Roland Künzel

Wilfred Teunissen

Konstantin Leonhardt

Christoph Gurtler

Michiel De Haan

Jorg Schmitt

Hanns-Peter Müller

Sascha Frischke

Takahiko Ohwada

Björn Herdt

Hans-Jörg Dahmen

Wolfgang P&uuml;tz

Goenuel-Hava Yelkaya

Dagmar Huertgen

Gönül-Hava Yelkaya

Christophe Gürtler

The present invention relates to two-component clear-coat systems comprising polyaspartic esters having primary amino groups and small amounts of dialkyl fumarates, to a process for the production thereof, and to the use thereof in the production of coatings for vehicle repair applications and to substrates coated therewith.

Two-component clear coat systems comprising polyaspartic acid ester

The invention relates to a multiple-chamber container (*) for storing and mixing a multi-component liquid coating or adhesive system (M), comprising a first chamber () for a first mixing component (B) and at least one other chamber () for another mixing component (H), the first chamber () and the at least one other chamber () being separated by at least one separating wall () in liquid-tight fashion and the separating wall () comprising a pierceable separating layer (). The multiple-chamber container further comprises at least one piercing element () for piercing the pierceable separating layer () in such a way that the first and the one other mixing component (B, H) mix in the first or the at least one other chamber (). The multiple-chamber container (*) is characterized in that the at least one other chamber () is coaxial to the first chamber (), the separating layer () being partially formed in the separating wall (). The piercing element () is hollow, in particular hollow-cylindrical, and has at least two longitudinally offset openings () for introducing either the first or the other mixing component (B, H) into the chamber () of the respective other mixing component (H, B).

Multiple-chamber container for storing and mixing a multi-component liquid coating or adhesive system

A process for preparing a polyurethane polymer comprises the step of:

Method and system for producing a polyurethane polymer by means of a supported catalyst

The invention relates to as method for producing a molded part in an injection mold, which molded part is made of plastic and provided with a UV-cured paint, wherein the UV-cured paint forms a visible surface designed as a functional surface. The invention further relates to such a molded part provided with a UV-cured paint, said molded part having a visible surface designed as a functional surface, wherein the UV-cured paint forms said visible surface.

Method for producing a molded part made of plastic and provided with a UV-cured paint, and said molded part

The present invention relates to a process for overlaying a base substance with a multilayer decorative film in a vacuum forming, a multilayer decorative film for a secondary decoration used in such a vacuum forming process, to a multilayer decorative film excellent in adhesiveness, workability, and secondary physical properties such as heat resistance and hydrolysis resistance after forming and the use of such multilayer decorative film in a vacuum forming process.

Multilayer decorative film

The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting at temperatures of &#x2266;130&#xb0; C. A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation, (radiation-curing groups), C) optionally NCO-reactive compounds other than B), in the presence of D) a catalyst containing at least one tetrasubstituted ammonium or phosphonium salt of an aliphatic or cycloaliphatic carboxylic acid, to form allophanate groups by opening the uretdione ring. The present invention also relates to the binders obtained by the process of the invention.

Low viscosity allophanates containing actinically curable groups

The invention relates to a process for preparing binders which contain 1) allophanate groups, 2) groups that react with ethylenically unsaturated compounds with polymerization on exposure to actinic radiation (radiation-curing groups) and 3) optionally NCO-reactive groups, by reacting at temperatures &#x2266;130&#xb0; C. The present invention also relates to the binders obtained by the process of the invention.

Radiation-curing binders and a process for their preparation

The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting, at temperatures of &#x2266;130&#xb0; C., A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups which react, with polymerization, with ethylenically unsaturated compounds on exposure to actinic radiation (radiation-curing groups), C) optionally NCO-reactive compounds other than B), in the presence of D) a catalyst containing at least one zinc compound, to form allophanate groups by opening the uretdione ring. The present invention also relates to the binders obtained by the process of the invention and to coating compositions containing these binders.

A process for preparing binders containing allophanate groups which contain, at the oxygen atom of the allophanate group that is bonded via two single bonds, organic radicals with activated groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation; the process includes reacting A) one or more compounds containing uretdione groups with B) one or more OH-functional compounds which contain groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and C) optionally further NCO-reactive compounds, and D) in the presence of one or more compounds containing phenoxide groups, as catalysts. The binders can be used in preparing coatings, coating materials, coating compositions, adhesives, printing inks, casting resins, dental compounds, sizes, photoresists, stereolithography systems, resins for composite materials and sealants.

Low-viscosity allophanates containing actinically curable groups

The present invention relates to a process for preparing radiation-curing binders containing allophanate groups by reacting at temperatures of &#x2266;130&#xb0; C.

A process for preparing polymers containing polyortho ester groups and optionally NCO groups by reacting A) and B) where A) is a polyortho ester containing at least one isocyanate-reactive group prepared by reacting at least one or more acyclic ortho esters with low molecular weight polyols having a functionality of 4-8 and a number-average molecular weight of 80-500 g/mol and B) is least one polyisocyanate. The polymers obtained from the process can be used to produce coatings, adhesive bonds and/or seals. The coating compositions can include one or more of the above-described polymers, optionally polyisocyanates, catalysts, and optionally auxiliaries and additives and can be used to coat substrates.

Binders containing ortho ester groups

Process for preparing binders including reacting A) one or more NCO-functional compounds containing uretdione groups with B) one or more compounds containing groups capable of participating in polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and contain isocyanate-reactive groups, followed by C) reaction with one or more hydroxyl-containing compounds other than B), wherein at least one of these compounds has an OH functionality of&#x2267;2, D) in the presence of one or more compounds containing phenoxide groups, as catalysts, and E) optionally auxiliaries and additives, where the reaction with compounds of component C) proceeds at least proportionally with the formation of allophanate groups and where and including binders containing allophanate groups and groups capable of participating in a polymerization reaction with ethylenically unsaturated compounds on exposure to actinic radiation, and optionally also contain NCO-reactive groups. The binders are used in coating compositions used to coat substrates.

Preparation of new radiation-curing binders

Growing community of inventors

Wermelskirchen, Germany

Holger Mundstock