Patent · US Expired

Particulator

US5551859A · kind A · utility

34Cited by
13References
9Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJul 19, 1993
Grant dateSep 3, 1996
Priority date
Expiry dateJul 19, 2013

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J19/1887
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The present invention provides in a bulk polymerization reactor chain suitable for polymerizing a syrup of one or more monomers having dissolved therein one or more rubbers the improvement comprising a uniform shear field device. During polymerization at least a portion of the syrup polymerized to from 4 to 95% conversion passes through the uniform shear field device to produce at least a portion of a syrup having a rubber particle size more closely controlled than currently possible using a conventional reactor chain without a uniform shear field device.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.