HALOGEN FREE FLAME RETARDANT WATERBORNE COATING COMPOSITION FOR TEXTILE

HALOGEN FREE FLAME RETARDANT WATERBORNE COATING COMPOSITION FOR TEXTILE

The present invention relates to a flame retardant waterborne coating composition comprising: a) water dispersed hydroxyl-terminated polyurethane particles, and b) isocyanate crosslinker, wherein (i) the hydroxyl-terminated polyurethane contains phosponate oligomer as a building block in an amount o...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: PUYENBROEK, Robert, HANDY, Anne, KIRTON, Richard, REISCH, John, BALKUN, Mindelle
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
CHEMISTRY
COMPOSITIONS BASED THEREON
FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
LAUNDERING
MACROMOLECULAR COMPOUNDS OBTAINED OTHERWISE THAN BY REACTIONSONLY INVOLVING UNSATURATED CARBON-TO-CARBON BONDS
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
TEXTILES
THEIR PREPARATION OR CHEMICAL WORKING-UP
TREATMENT OF TEXTILES OR THE LIKE
TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS
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Beschreibung
Zusammenfassung:The present invention relates to a flame retardant waterborne coating composition comprising: a) water dispersed hydroxyl-terminated polyurethane particles, and b) isocyanate crosslinker, wherein (i) the hydroxyl-terminated polyurethane contains phosponate oligomer as a building block in an amount of from 3 to 75 parts by weight relative to the hydroxyl-terminated polyurethane, wherein the phosphonate oligomer contains units according to the following structural formula in which n is an integer from 1 to 20, R is a C1-20 alkyl, C2-20 alkene, C2-20 alkyne, C5-20 cycloalkyl or C6-20 aryl, and R2 is an aliphatic or aromatic group, (ii) the hydroxyl number of the hydroxyl-terminated polyurethane is from 5 to 180 mg KOH/g polyurethane, (iii) the molar ratio of hydroxyl groups present in the hydroxyl-terminated polyurethane to isocyanate groups of the crosslinker is from 0.2 to 2.0.