Title:
【発明の名称】球状シリコーン微粒子の製造法
Document Type and Number:
Japanese Patent JP2983581
Kind Code:
B2
Abstract:
PURPOSE:To obtain the subject fine particle suitable for cosmetics, etc., at a low cost by suspending a specified silane compound, its partially hydrolyzed material, its low condensate and derivatives thereof in a dispersion medium in the presence of a nonionic surfactant and carrying out hydrolysis condensation. CONSTITUTION:A hydrolyzable silane compound represented by the formula (R is H, 1-18C alkyl, 6-14C aryl or 2-18C alkenyl; X is H, OH, 1-4C alkoxy or acyloxy; n is 0-3), its partially hydrolyzed material, its low condensate and/or derivatives thereof are suspended in a dispersion medium in the presence of a basic catalyst such as sodium hydroxide or an acid catalyst using a nonionic surfactant (preferably oxyethyleneoxypropylene type block copolymer) and subsequently subjected to hydrolysis condensation, thus giving the objective fine particle having 0.5-100mum average particle size and suitable for a filler, a flatting agent, an anti-blocking agent, etc.
Inventors:
ARAKI HIDEKAZU
NAKAMURA MORIO
SUGIHARA NORIHIRO
NAKAMURA MORIO
SUGIHARA NORIHIRO
Application Number:
JP13913390A
Publication Date:
November 29, 1999
Filing Date:
May 29, 1990
Export Citation:
Assignee:
SUMITOMOSEIKA KK
International Classes:
C08G77/06; (IPC1-7): C08G77/06
Domestic Patent References:
| JP1145317A |
Attorney, Agent or Firm:
Aoyama Ryo (1 person outside)