Patent · US Expired

Process of continuous suspension polymerization

US4487898A · kind A · utility

13Cited by
3References
4Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJun 4, 1982
Grant dateDec 11, 1984
Priority date
Expiry dateJun 4, 2002

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J2219/00164
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

A continuous suspension polymerization process for the production of polymeric particles substantially uniform particle size, entailing the steps of forming monomer droplets of substantially uniform particle size through an orifice under vibration, and effecting polymerization of the monomer droplets in an aqueous medium. The process permits carrying out polymerization without destruction or agglomeration of the monomer droplets, so that the particle size of the polymeric particles thus produced depends predominantly upon the particle size of the monomer droplets as initially formed.

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