Title:
AQUEOUS DISPERSION OF POLYMERIC COMPOSITE MICROSPHERES
Document Type and Number:
Japanese Patent JP2020132866
Kind Code:
A
Abstract:
To provide a method for producing an aqueous dispersion of polymeric composite microspheres that comprise a polysiloxane and a polymer, and to provide a composition comprising the aqueous dispersion.SOLUTION: There is provided a method for preparing an aqueous dispersion of composite microspheres: comprising the steps of contacting an aqueous dispersion of first composite microspheres comprising a polysiloxane and structural units of a first monoethylenically unsaturated nonionic monomer with first stage monomers comprising, based on the weight of the first stage monomers, a) nonionic polyalkylene oxide or anionic polyalkylene oxide salt of a distyryl or tristyryl phenol, and b) a second monoethylenically unsaturated nonionic monomer, to grow out the first composite microspheres to form an aqueous dispersion of second composite microspheres; and further reacting the dispersion of the second composite microspheres with a second stage monoethylenically unsaturated nonionic monomer, in the presence of a water-soluble initiator/redox couple.SELECTED DRAWING: None
Inventors:
IBRAHIM ERYAZICI
LUI YIHAN
BRETT L ZIMMERMAN
JOSHUA M KATZENSTEIN
JOSEPH GRANT
EDWIN A NUNGESSER
LUI YIHAN
BRETT L ZIMMERMAN
JOSHUA M KATZENSTEIN
JOSEPH GRANT
EDWIN A NUNGESSER
Application Number:
JP2020016092A
Publication Date:
August 31, 2020
Filing Date:
February 03, 2020
Export Citation:
Assignee:
ROHM & HAAS
DOW CORNING
DOW CORNING
International Classes:
C08F283/12; C08F2/24; C08F2/44; C09K23/52; C09K23/54
Attorney, Agent or Firm:
Patent Business Corporation Sender International Patent Office
Takanori Akinori
Takanori Akinori