ROBERT H SIMON
Engineering in Springfield, MA
License number
Massachusetts 10186
Expiration Date
Jun 30, 1994
Type
Chemical Engineer
Address
Address
Springfield, MA 01106
Personal information
See more information about ROBERT H SIMON at radaris.comName
Address
Phone
27 Surrey Ln, Sudbury, MA 01776
45 Keddy St, Springfield, MA 01109
82 Commonwealth Ave, Boston, MA 02116
Professional information
Mass Polymerization Process For Abs Polyblends
US Patent:
4252911, Feb 24, 1981
Filed:
Oct 17, 1979
Appl. No.:
6/085556
Inventors:
Robert H.M. Simon - Longmeadow MA
Assignee:
Monsanto Company - St. Louis MO
International Classification:
C08F27904, C08L 5502
US Classification:
525 54
Abstract:
The process relates to a continuous mass polymerization process for ABS polyblends wherein a monomer formulation of monoalkenyl aromatic and alkenyl nitrile monomers having a conjugated diene rubber dissolved therein is continuously charged to a first, stirred reaction zone operating at a steady conversion of said monomers of about 5 to 45% forming a partially polymerized first mixture having said rubber dispersed as grafted rubber particles, followed by continuously polymerizing said first mixture in a second stirred reaction zone by substantial linear flow polymerization under evaporative cooling of said monomers to a second partially polymerized mixture containing about 50 to 90% of ABS polyblend solids and separating said solids from said second mixture as an ABS polyblend.