Core shell silica particles and use for malodor reduction

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United States of America Patent

PATENT NO 11951196
APP PUB NO 20230263711A1
SERIAL NO

18169367

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Abstract

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The present invention relates to core shell silica particles, wherein each core shell silica particle comprises a silica core, and a surface of the silica core is etched with metal silicate, the core shell silica particles prepared by: i) admixing an amount of silica particles in water with an amount of a base, wherein the base comprises a monovalent metal ion, to produce core shell silica particles, each core shell silica particle comprising a silica core, and a surface of the silica core etched with a silicate of the monovalent metal ion; and ii) reacting the core shell silica particles formed in step i) with a metal salt comprising a second metal ion, to form core shell silica particles comprising silicate of the second metal ion on the surface of the silica core.

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Patent Owner(s)

Patent OwnerAddress
COLGATE-PALMOLIVE COMPANY300 PARK AVENUE NEW YORK NY 10022

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Chopra, Suman Monroe, US 130 981
Pan, Guisheng Philadelphia, US 37 238

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