Title:
SYNTHESIS OF HOLLOW SILICA PARTICLES AND USE IN SUN CARE COMPOSITIONS
Document Type and Number:
WIPO Patent Application WO/2021/087207
Kind Code:
A8
Abstract:
Described herein are hollow silica particles, processes for making hollow silica particles, and uses of hollow silica particles in sun care compositions. To form the hollow silica particles, swellable latex seeds are used to template the deposition of continuous silica shell, and voids are created by collapsing the swollen latex upon drying. Preferably, the process for making hollow silica particles comprises forming latex seeds for use as a template, depositing silica shells on the latex seeds, and collapsing the latex seeds to afford hollow silica particles.
Inventors:
XIONG JIE (US)
ZENG FANWEN (US)
XU WENJUN (US)
MILLAR DEAN (US)
O'LEARY LESLIE (US)
LEONARD MICHAEL (US)
DOMBROWSKI GARY (US)
MARTEAUX LEON (BE)
EVEN RALPH (US)
ZENG FANWEN (US)
XU WENJUN (US)
MILLAR DEAN (US)
O'LEARY LESLIE (US)
LEONARD MICHAEL (US)
DOMBROWSKI GARY (US)
MARTEAUX LEON (BE)
EVEN RALPH (US)
Application Number:
PCT/US2020/058120
Publication Date:
June 03, 2021
Filing Date:
October 30, 2020
Export Citation:
Assignee:
DOW GLOBAL TECHNOLOGIES LLC (US)
ROHM & HAAS (US)
DOW SILICONES CORP (US)
ROHM & HAAS (US)
DOW SILICONES CORP (US)
International Classes:
A61K8/02; A61K8/58; A61K8/81; A61Q17/04; C01B33/12; C08F285/00; C08L51/00
Attorney, Agent or Firm:
HUBBARD, Brian, J. (US)
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