AUTOXIDISABLE COATING COMPOSITIONS CONTAINING DISPERSED CROSS-LINKED POLYMER MICROPARTICLES

Coating compositions are described in which the film-forming material consists of (a) 30 - 85% by volume of disperse particles of size 0.01 - 20 microns, of which not less than 50% by volume are cross-linked polymer microparticles, and (b) 70 - 15% by volume of a liquid continuous phase of viscosity...

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Bibliographische Detailangaben
Hauptverfasser:	BENTLEY, JOHN, THOMPSON, MORICE W
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS CORRECTING FLUIDS DYES FILLING PASTES INKS 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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Beschreibung
Zusammenfassung:	Coating compositions are described in which the film-forming material consists of (a) 30 - 85% by volume of disperse particles of size 0.01 - 20 microns, of which not less than 50% by volume are cross-linked polymer microparticles, and (b) 70 - 15% by volume of a liquid continuous phase of viscosity 0.1 - 20 poise which is curable to a film-forming polymer by means of an autoxidative (i.e. airdrying) mechanism, the particles (a) being stably dispersed in the liquid (b) in a deflocculated state by means of an amphipathic steric stabilising agent. Typically, the polymer microparticles may be composed of a cross-linked polyester and the liquid continuous phase of a drying-oil fatty acid ester of a polyol, optionally in conjunction with a coreactive liquid such as an acrylic or methacrylic ester of a higher alcohol or a polyol.