Covestro Deutschland Ag

Adhesys Medical Gmbh

Medical Adhesive Revolution Gmbh

Covestro Intellectual Property Gmbh & Co. Kg

Bayer Materialscience Ag

Christoph Eggert

Dirk Achten

Heike Heckroth

Hartmut Nefzger

Jörg Hofmann

Klaus Lorenz

Andreas Hecking

Hans-Josef Laas

Nusret Yuva

Edward P Browne

Gesa Behnken

Jan Weikard

Frank Richter

Sebastian Dörr

Josef Sanders

Dieter Mager

Roland Wagner

Dorota Greszta-Franz

Thomas Büsgen

Robert Maleika

Jürgen Köcher

Michael Grahl

Florian Johannes Stempfle

Christoph Tomczyk

Jörg Tillack

Florian Golling

Tanja Hebestreit

Irene Cristina Latorre Martinez

Frank-Stefan Stern

Achim Meyer

Robert Reyer

Fredie Langenstueck

Uwe Werner

Irene Christina Latorre Martinez

Edward Browne

Fredie LANGENSTÜCK

The present invention relates to a polyisocyanate composition, comprising a mixture of ≥60 wt. %, relative to the total weight of the mixture, of at least one polyisocyanate based on pentamethylene diisocyanate and ≤40 wt. %, relative to the total weight of the mixture, of at least one polyisocyanate based on a cycloaliphatic diisocyanate and and/or of at least one polyisocyanate based on pentamethylene diisocyanate and at least one cycloaliphatic diisocyanate, the polyisocyanate composition having a residual monomer content of monomer diisocyanates below 0.5 wt. %, relative to the total weight of the polyisocyanate composition.

Polyisocyanate composition for coatings

The present invention relates to a polyisocyanate composition comprising a formation component having isocyanate groups, the isocyanate groups having been reacted to an extent of &#x2265;98% with at least one CH-acidic compound, characterized in that the formation component consists to an extent of &#x2265;51% by weight of at least one polyisocyanate based on pentamethylene 1,5-diisocyanate having a content of isocyanurate trimer of &#x2264;60 area %, based on the total weight of the polyisocyanates based on pentamethylene 1,5-diisocyanate, and the remaining proportion up to 100% by weight of the total amount of polyisocyanates present in the formation component consists of at least one aliphatic or cycloaliphatic polyisocyanate. The present invention further provides a one-component system comprising the polyisocyanate composition, a process for producing a coating on a substrate, and the coatings obtainable from the one-component system.

Blocked polyisocyanate composition based on pentamethylene 1,5-diisocyanate

The present invention relates to non-aqueous coating agent compositions, containing at least one polyol (A), at least one silane-modified compound (B) of formula (I), optionally one or more silane-free aliphatic or cycloaliphatic polyisocyanates (C) having free or blocked isocyanate groups, and at least one catalyst (D) for the cross-linking of the silane groups. Furthermore, the non-aqueous coating agent compositions according to the invention can contain one or more surface additives (E) and one or more non-aqueous solvents (F).

Polyurethane coating compositions

The invention relates to modified polyisocyanates, obtained by reacting at least one polyisocyanate (A) based on 1,5-diisocyanatopentane with at least one silane compound (B) which is reactive with respect to isocyanate groups. The invention also relates to a method for producing the modified polyisocyanates and to the use thereof as starting components in the production of polyurethane plastics, in particular as crosslinker components in polyurethane paints and coatings.

Silane groups containing polyisocyanates based on 1,5-diisocyanatopentane

The invention relates to a polyisocyanate mixture containing at least one polyisocyanate based on 1,5-diisocyanatopentane and at least one organic solvent, said organic solvent being inert with respect to isocyanate groups and the polyisocyanate mixture has a solid body content of &#x2265;35 and &#x2264;65 wt. %. The invention also relates to a two-component system, to a method for producing a coating, to the thus obtained coatings and to a composite consisting of the coating and a substrate.

Polyisocyanate mixture based on 1,5-diisocyanatopentane

The invention relates to a composition for producing transparent polythiourethane bodies containing or consisting of A) a polyisocyanate component containing at least one polyisocyanate with a functionality of isocyanate groups of at least 2 per molecule, B) a thiol component containing at least one polythiol with a functionality of thiol groups of at least two per molecule, in addition to optionally C) auxiliary agents and additives, the ratio of isocyanate groups to groups reactive in relation to isocyanates being 0.5:1 to 2.0:1. The composition is characterized in that the polyisocyanate of the polyisocyanate component A) is produced by a gas-phase phosgenation of aliphatic, cycloaliphatic, aromatic or araliphatic polyamines. The invention also relates to a method for producing transparent polythiourethane bodies by the conversion of a composition of this type, to polythiourethane bodies produced in this manner and to the use of polyisocyanates, produced by a gas-phase phosgenation of aliphatic, cycloaliphatic, aromatic or araliphatic polyamines, for producing transparent polythiourethane bodies.

Composition for producing transparent polythiourethane bodies

The invention relates to thioallophanates which contain silane groups and are of the general formula (I) in which R, Rand Rare identical or different radicals and are each a saturated or unsaturated, linear or branched, aliphatic or cycloaliphatic radical or an optionally substituted aromatic or araliphatic radical having up to 18 carbon atoms, where said radical may optionally contain up to 3 heteroatoms from the group of oxygen, sulphur and nitrogen, X is a linear or branched organic radical having at least 2 carbon atoms, Y is a linear or branched, aliphatic or cycloaliphatic radical or an araliphatic or aromatic radical having up to 18 carbon atoms, and n is an integer from 1 to 20, to a process for preparation thereof, and to the use thereof as starting components in the production of polyurethane plastics.

Thioallophanate polyisocyanates containing silane groups

The invention relates to novel silane-modified formamides and/or pre-polymers for bonding and/or sealing diverse substrate materials, such as, for example metal, wood, glass and/or plastic. The invention also relates to a reactive single-component adhesive system comprising the claimed silane-modified formamide and/or pre-polymers.

Silane modified formamides

The invention relates to novel silane-modified formamide-polymers and/or pre-polymers for bonding and/or sealing diverse substrate materials, such as, for example metal, wood, glass and/or plastic. The invention also relates to a reactive single-component adhesive system comprising the claimed silane-modified formamide polymers.

Silane-modified formamides

The present invention relates to a process for producing a hydroxy amino polymer comprising the steps:

Hydroxy amino polymer and use thereof in polyurea/polyurethane tissue adhesives

The present invention relates to a polyurea system, the use of such a polyurea system for sealing, linking, gluing, or covering of cellular tissue, and a dosing system having two chambers for a polyurea system such as this. The polyurea system comprises as components: A) an isocyanate-functioning prepolymer, which can be derived by reacting aliphatic isocyanates with polyoles, and B) an amino-functioning ester of aspartic acid. According to the invention, water and/or tertiary amine is added to the system, in order to increase the reacting speed of the prepolymer with the amino-functioning ester of aspartic acid while decreasing the setting time at the same time.

Polyurea-based fabric glue

The present invention relates to an isocyanate functional prepolymer that can be achieved through The invention additionally relates to a process for producing this isocyanate functional prepolymer, a tissue adhesive system containing such an isocyanate functional prepolymer and a dispensing system having at least two chambers and this type of tissue adhesive system.

Isocyanate-functional prepolymer for a biologically degradable fabric adhesive

The invention relates to a polyurea system comprising as component A) isocyanate-functional prepolymers which can be obtained by reacting aliphatic isocyanates A1) with polyols A2) that can have a number-average molecular weight of =400 g/mol and an average OH functionality of 2 to 6 in particular; and as component B) amino-functional aspartic acid esters of the general formula (I) in which X is an organic group containing a secondary amino function, R1, R2 are the same or different organic groups that do not have Zerewitinoff-active hydrogen, and n is a whole number of at least 2, in particular for sealing, bonding, gluing, or covering cell tissue. The invention also relates to a metering system for the polyurea system according to the invention.

Tissue adhesive based on nitrogen-modified aspartates

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Kö'ln, Germany

Christoph Eggert