Patent · US Expired

Process for production of styrene or styrene derivative polymer of narrow molecular weight distrubition

US5610249A · kind A · utility

9Cited by
4References
16Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJan 24, 1996
Grant dateMar 11, 1997
Priority date
Expiry dateJan 24, 2016

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC08F4/00
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

The present invention provides a process for producing a styrene or styrene derivative polymer of narrow molecular weight distribution, which comprises (co)polymerizing a styrene or styrene derivative monomer using, as the catalyst system, a mixture of a free radical compound, a radical polymerization initiator and a phosphorus compound. With the present process, the polymerization speed is very high and a monodisperse polymer of narrow molecular weight distribution can be obtained easily.

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