HOLLOW SPHERE PIGMENTS DISPOSED ON A SUBSTRATE

The present invention relates to an article comprising a substrate and porous hollow sphere pigments disposed thereupon, wherein the porous hollow sphere pigments have a polymeric shell phase and a hollow phase; wherein the polymeric shell phase structural units of styrene, one or more acrylate mono...

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Bibliographische Detailangaben
Hauptverfasser:	HEJL, Andrew, ERYAZICI, Ibrahim, GLOR, Ethan C, EINSLA, Brian R
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COLOUR PRINTING COMPOSITIONS BASED THEREON CORRECTING FLUIDS DYES FILLING PASTES IMPREGNATING OR COATING OF PAPER INKS LINING MACHINES MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PAPER NOT OTHERWISE PROVIDED FOR PAPER-MAKING PASTES OR SOLIDS FOR COLOURING OR PRINTING PERFORMING OPERATIONS POLISHES PREPARATION THEREOF NOT COVERED BY SUBCLASSES D21C OR D21D PRINTING PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES PRODUCTION OF CELLULOSE PULP COMPOSITIONS STAMPS TEXTILES THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF FINISHED PAPER NOT COVERED BY CLASS B31 OR SUBCLASS D21G TYPEWRITERS USE OF MATERIALS THEREFOR WOODSTAINS
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Beschreibung
Zusammenfassung:	The present invention relates to an article comprising a substrate and porous hollow sphere pigments disposed thereupon, wherein the porous hollow sphere pigments have a polymeric shell phase and a hollow phase; wherein the polymeric shell phase structural units of styrene, one or more acrylate monomers, methyl methacrylate, and an acid monomer or a salt thereof. The porous hollow sphere pigments have a relatively high void fraction and are collapse resistant. The article is useful, for example, in thermosensitive paper applications. La présente invention concerne un article comprenant un substrat et des pigments sphériques creux poreux disposés sur celui-ci, les pigments sphériques creux poreux ayant une phase d'enveloppe polymère et une phase creuse ; les motifs structuraux de la phase d'enveloppe polymère comprenant du styrène, un ou plusieurs monomères d'acrylate, du méthacrylate de méthyle et un monomère acide ou un sel de celui-ci. Les pigments sphériques creux poreux ont une fraction de vide relativement élevée et sont résistants à l'affaissement. L'article est utile, par exemple, dans des applications de papier thermosensible.