ALKOXYSILANE-CONTAINING COATING COMPOSITION

PROBLEM TO BE SOLVED: To make formable a protective film which hardens at room temperature to such an extent that penetration of a dye can be prevented, by making a coating composition contain a specific polyisocyanate compound, aminosilane and an alkoxysilyl functional polyisocyanate polyurea. SOLU...

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Bibliographic Details
Main Authors YESKE PHILIP E, HALPAAP REINHARD DR, SCHMALSTIEG LUTZ DR, GROTH STEFAN DR, MECHTEL MARKUS DR
Format Patent
LanguageEnglish
Published 20.06.2000
Edition7
Subjects
ADHESIVES
CHEMICAL PAINT OR INK REMOVERS
CHEMISTRY
COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS
COMPOSITIONS BASED THEREON
CORRECTING FLUIDS
DYES
FILLING PASTES
INKS
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
MISCELLANEOUS APPLICATIONS OF MATERIALS
MISCELLANEOUS COMPOSITIONS
NATURAL RESINS
ORGANIC MACROMOLECULAR COMPOUNDS
PAINTS
PASTES OR SOLIDS FOR COLOURING OR PRINTING
POLISHES
THEIR PREPARATION OR CHEMICAL WORKING-UP
USE OF MATERIALS THEREFOR
WOODSTAINS
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Summary:PROBLEM TO BE SOLVED: To make formable a protective film which hardens at room temperature to such an extent that penetration of a dye can be prevented, by making a coating composition contain a specific polyisocyanate compound, aminosilane and an alkoxysilyl functional polyisocyanate polyurea. SOLUTION: The composition of the present invention contains a polyisocyanate component having an average functional value of 2.5-5.5, an NCO content of 11.0-20.0 wt.% and a monomer isocyanate content of not more than 10 wt.% and containing not less than 50 wt.% of a polyisocyanate prepared from 4,4'-diisocyanatodicyclohexylmethane, aminosilane represented by formula, the content thereof being not more than 0.7 equivalent per equivalent of isocyanate group and if necessary 40-100 wt.% (solid resin component) of an alkoxysilyl functional polyisocyanate polyurea obtained by reacting residual NCO equivalent with a compound reactable with the isocyanate (wherein R is methyl or ethyl; Y is methyl; Z is H, a 1-12C alkyl or CH2CH2CH2- Si(OR)nY3-n; and n is 1-3).
Bibliography:Application Number: JP19990344409