Silicone-based copolymer resin powder, making method, and cosmetics
Number of patents in Portfolio can not be more than 2000
United States of America Patent
Stats
-
May 29, 2018
Issued Date -
N/A
app pub date -
Oct 31, 2014
filing date -
Nov 1, 2013
priority date (Note) -
In Force
status (Latency Note)
Importance
Abstract
A silicone-based copolymer resin powder is prepared by reacting a siloxane oligomer obtained from ring-opening of (a1) a cyclic organosiloxane in the presence of (a3) an acid catalyst and (a4) an anionic surfactant with (a2) a silane coupling agent having an alkoxy group and a polymerizable double bond to obtain (A) a linear or branched organopolysiloxane containing at least 2 silicon-bonded hydroxyl groups per molecule,
- copolymerizing (A) the linear or branched organopolysiloxane with (B) an ethylenically unsaturated monomer to form a copolymer as a core, andfurther polymerizing to the copolymer another ethylenically unsaturated monomer as a shell,the powder containing up to 0.3% by weight of the cyclic organosiloxane and up to 1% by weight of the anionic surfactant.
First Claim
Family
International Classification(s)
Cited Art Landscape
Patent Citation Ranking
Advertisement
Advertisement
Advertisement
Recipient Email Address
Recipient Email Address
Comment
Recipient Email Address
Add to Portfolio(s)
To add this patent to one, or more, of your portfolios, simply click the add button.
This Patent is in these Portfolios:
Add to additional portfolios:
Last Refreshed On:
Changes done successfully