Construction Research & Technology Gmbh

Wacker Chemie Ag

Sika Technology Ag

Heimo Woelfle

Burkhard Walther

Sophie Putzien

Maximilian Köhler

Joaquim Henrique Teles

Bernd Bruchmann

Markus Dierker

Nicolas Vautravers

Francisco Javier Lopez Villanueva

Bernhard Feichtenschlager

Florian Bauers

Dominik Ohlmann

Alfons Smeets

Holger Poths

Kristina Brandt

Francisco Javier Lopez-Villanueva

Li Yi Chen

Thierry Bubel

Roland Hinrich Staff

Burkard Walther

The present invention relates to a two-component coating composition comprising one first saturated polyhydroxy component, optionally one second saturated polyhydroxy component, wherein the second polyhydroxy compound is different from the first polyhydroxy compound, at least one metal component, water and at least one polyisocyanate. The resulting composition offers excellent scratch resistance, better mechanical properties and good applicability.

Two-component coating compositions

Textile nonwovens are produced without formaldehyde by employing a polymer binder which is a copolymer of vinyl acetate, ethylene, (meth)acrylamide, (meth)acrylic acid and maleic acid or anhydride or maleamic acid.

Formaldehyde-free binder composition

A microencapsulated polyaddition catalyst comprises a capsule core, containing polyaddition catalyst, and an acrylic copolymer capsule shell, the acrylic copolymer comprising copolymerized units of an intermolecular anhydride of an ethylenically unsaturated C-Ccarboxylic acid. The polyaddition catalyst is selected from acyclic tertiary amines, alicyclic tertiary amines, N-alkylimidazoles, phosphines and organic metal salts. It is suitable for catalysing the reaction of a polyol compound with a polyisocyanate compound. The polyaddition catalyst is released by a chemical stimulus, such as on contact with polyols or water, for example.

Microencapsulated polyaddition catalyst

The invention relates to a process for producing a ring-opening polymerization product by reacting at least one polyisocyanate and 2-oxo-1,3-dioxolane-4-carboxylic acid and subjecting the reaction product to a temperature within the range of from about 40 to about 150&#xb0; C. in the presence of a catalytic amount of at least one non-nucleophilic base. The obtained polymerization product may be present as a foam and is suitable as binder, insulation material, sealant or coating and in the production of mattresses or wound pads.

Process for producing a ring-opening polymerization product

The present invention suggests a curable organic polymer comprising at least one acylurea unit represented by structural formula (I):  Moreover, the present invention suggests a process for the preparation of said polymer and the use of said curable organic polymer for the preparation of a cured composition and for the preparation of hydroxyurethanes.

Curable organic polymer comprising at least one acylurea unit, its preparation and use

The present invention relates to a method for preparing a compound of the formula (I) with a specific definition of the substituent R a mixture and also a corresponding application/use.

Method for producing glyceric acid carbonate

The invention relates to coatings which can be obtained by adding mercapto groups to acrylates and/or by a radiation curing process, said coatings having good properties, to methods for producing same, and to the use thereof.

Binding agent systems

The present invention suggests 2-oxo-1,3-dioxolane-4-carboxamides of formula (I), in which Rcan be, inter alia, an n-valent radical (n&#x3e;1) which is substituted with n&#x2212;1 further 2-oxo-1,3-dioxolane-4-carboxamide groups of general formula (II), to processes for the preparation of these 2-oxo-1,3-dioxolane-4-carboxamides, to processes for the preparation of the 2-oxo-1,3-dioxolane-4-carboxylic acids of formula (III), which are suitable starting materials for the above processes, and to the use of said 2-oxo-1,3-dioxolane-4-carboxamides for the preparation of (poly)hydroxyurethanes, -hydroxycarbonates and -hydroxysulfanylformates, and also as end groups for the blocking of amines.

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Traunstein, Germany

Heimo Woelfle