COMPOSITION COMPRISING POLYNINYL CHLORIDE (PVC) AND ORGANOSILANE-MODIFIED COLLOIDAL SILICA AND ASSOCIATED METHOD OF PREPARATION

The invention relates to a composition comprising PVC and colloidal silica particles, in which the colloidal silica particles are organosilane- modified. The invention also relates to a process for preparing such a composition in which PVC is formed by suspension or emulsion polymerisation, and addi...

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Bibliographische Detailangaben
Hauptverfasser:	JACOBSEN, Harald, LAGNEMO, Hans, HOLT, Asbjorn, TORNCRONA, Anders, RESTORP, Per
Format:	Patent
Sprache:	eng ; fre
Schlagworte:	ADHESIVES AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G CHEMICAL PAINT OR INK REMOVERS CHEMISTRY COATING COMPOSITIONS, e.g. PAINTS, VARNISHES ORLACQUERS COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOUNDS THEREOF CORRECTING FLUIDS DYES FILLING PASTES GENERAL PROCESSES OF COMPOUNDING INKS INORGANIC CHEMISTRY METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS NON-METALLIC ELEMENTS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PASTES OR SOLIDS FOR COLOURING OR PRINTING POLISHES THEIR PREPARATION OR CHEMICAL WORKING-UP USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS USE OF MATERIALS THEREFOR WOODSTAINS WORKING-UP
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Beschreibung
Zusammenfassung:	The invention relates to a composition comprising PVC and colloidal silica particles, in which the colloidal silica particles are organosilane- modified. The invention also relates to a process for preparing such a composition in which PVC is formed by suspension or emulsion polymerisation, and adding orga nosilane-modified colloidal silica. The invention further relates to the use of orga nosilane-modified colloidal silica in improving the cleanability of PVC, improving the dirt pick-up resistance of PVC, increasing thermal stability of PVC and increasing weathering resistance of PVC. L'invention concerne une composition comprenant du PVC et des particules de silice colloïdale, dans laquelle les particules de silice colloïdale sont modifiées par organosilane. L'invention concerne également un procédé de préparation d'une telle composition dans laquelle du PVC est formé par polymérisation en suspension ou en émulsion, et ajout de silice colloïdale modifiée par organosilane. L'invention concerne en outre l'utilisation de silice colloïdale modifiée par organosilane dans l'amélioration de la nettoyabilité du PVC, l'amélioration de la résistance aux salissures du PVC, l'augmentation de la stabilité thermique du PVC et l'augmentation de la résistance aux intempéries du PVC.