Inorganic oxide sol dispersed in hydrocarbon and production method therefor

• Main Authors: Yoshitake, Keiko, Maeta, Tomoya, Suemura, Naohiko
• Format: Patent
• Language: English
• Published: 10.01.2023
• Subjects: ADHESIVES; APPARATUS SPECIALLY ADAPTED THEREFOR; CHEMISTRY; CINEMATOGRAPHY; COMPOUNDS CONTAINING METALS NOT COVERED BY SUBCLASSESC01D OR C01F; COMPOUNDS THEREOF; DYES; ELECTROGRAPHY; HOLOGRAPHY; INORGANIC CHEMISTRY; MATERIALS THEREFOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; NATURAL RESINS; NON-METALLIC ELEMENTS; ORIGINALS THEREFOR; PAINTS; PHOTOGRAPHY; PHOTOMECHANICAL PRODUCTION OF TEXTURED OR PATTERNED SURFACES,e.g. FOR PRINTING, FOR PROCESSING OF SEMICONDUCTORDEVICES; PHYSICS; POLISHES; PREPARATION OF CARBON BLACK; TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES

A sol of inorganic oxide particles is stably dispersed in a hydrophilic organic solvent containing a hydrocarbon such as a paraffinic hydrocarbon or a naphthenic hydrocarbon. The sol contains a dispersion medium containing an organic solvent containing a C6-18 paraffinic hydrocarbon, a C6-18 naphthenic hydrocarbon, or a mixture of these, a C4-8 alcohol having a carbon chain with a carbon-carbon bond in the molecule in an amount of 0.1 to 5% by mass in the entire dispersion medium, and inorganic oxide particles having an average particle diameter of 5 to 200 nm as measured by dynamic light scattering as a dispersoid, wherein the inorganic oxide particles contain a C1-3 alkyl group bonded to a silicon atom and a C4-18 alkyl group. The paraffinic hydrocarbon is a normal paraffinic hydrocarbon or an isoparaffinic hydrocarbon. The naphthenic hydrocarbon is a saturated aliphatic cyclic hydrocarbon substitutable with a C1-10 alkyl group.