Patent · US Expired

Process for bulk polymerization

US4299935A · kind A · utility

4Cited by
6References
5Claims
0Family size

Assignee

Inventor

Key dates

Filing dateApr 23, 1979
Grant dateNov 10, 1981
Priority date
Expiry dateApr 23, 1999

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J2219/182
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

The bulk polymerization of monomers which produce polymer insoluble in the monomers, in which the polymerization is carried out in an autoclave mounted on a horizontal axis and provided with stirring means formed of at least two half-frames arranged symmetrically of the axis of the autoclave and fixed at each end to a rotatable stub shaft axially mounted in the autoclave, each half-frame having a peripheral member serving as a blade which, on rotation of the half-frames, passes in close proximity to the interior surface of the autoclave, and bracing means interconnecting the peripheral members of the half-frames.

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