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Polyurethane "high-solid" reactive coating systems incorporating a levelling agent, and their use in reactive coating

Assignee: Bayer AG
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Filing: 1983-10-17
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Granted: —
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Expires: 2003-10-17
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Abstract

Abstract Translated from German Gegenstand der Erfindung sind High-Solid-Polyurethan-Reaktivbeschichtungssysteme aus blockierten NCO-Prepolymeren, Polyaminen und gegebenenfalls Lösungsmitteln, welche eine bestimmte Verlaufmittelkombination aus 1 bis 10 Gew.-% Poly(meth)acrylsäureestern und gegebenenfalls weiteren Copolymeren und 0,1 bis 2 Gew.-% Silikonen, insbesondere Polydimethylsiloxanen und/oder Polyalkylenoxid-polydimethylsiloxan-Copolymeren und/oder 0,1 bis 4 Gew.-% Poly(meth)acrylsäure(hydroxy)-alkylester-Pfropfpolymeren auf Silikone, insbesondere hergestellt durch Pfropfung entsprechender Monomerer auf Gemische von Vinylreste enthaltenden Polydimethylsiloxanen und SiH-haltigen Dimethylpolysiloxanen, enthalten. The invention relates to high-solid polyurethane reactive coating systems composed of blocked NCO prepolymers, polyamines and, if appropriate, solvents which contain a certain leveling agent combination of 1 to 10% by weight of poly (meth) acrylic acid esters and optionally further copolymers and 0.1 to 2% by weight .-% silicones, in particular polydimethylsiloxanes and / or polyalkylene oxide-polydimethylsiloxane copolymers and / or 0.1 to 4% by weight of poly (meth) acrylic acid (hydroxy) alkyl ester graft polymers on silicones, in particular produced by grafting corresponding monomers onto mixtures of vinyl residues containing polydimethylsiloxanes and SiH-containing dimethylpolysiloxanes. Gegenstand der Erfindung ist auch die Verwendung dieser verlaufmittelhaltigen Reaktivsysteme zur ein-oder besonders beidseitigen Reaktivbeschichtung von textilen Substraten oder zur Herstellung von oberflächenstrukturierten, flächigen Gebilden, insbesondere Veloursleder, über Matrizenabformungen. The invention also relates to the use of these leveling agent-containing reactive systems for one-sided or especially double-sided reactive coating of textile substrates or for the production of surface-structured, flat structures, in particular suede, via die impressions.

Inventors

  • 👤 Wilhelm Dr. Thoma
  • 👤 Karl Heinz Pisaric
  • 👤 Heinrich Dr. Alberts

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-31 17:08
CPC Classifications
C; C09; C09D; C09D175/00; C09D175/04; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/10; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31598; Y10T428/31609; Y10T428/31612; Y10T428/31652; Y10T428/31663; Y10T428/31786

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