Patent · US Expired

Preparation of hydrophilic material for gel chromatography

US4238569A · kind A · utility

6Cited by
2References
8Claims
0Family size

Assignee

Inventors

Key dates

Filing dateNov 24, 1978
Grant dateDec 9, 1980
Priority date
Expiry dateNov 24, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB01J2220/54
  • WIPO fieldMacromolecular chemistry, polymers
  • WIPO sectorChemistry

Abstract

This invention relates to a method for preparing globular, hydrophilic copolymers which have reticulated internal structures and are suitable for gas and gel chromatography. The method comprises polymerization by suspension polymerization methods of hydrophilic and hydrophilic monomers in aqueous medium in the presence of a component which prevents transfer of the hydrophilic monomer into the aqueous medium and the solubility of the aqueous medium in the monomeric phase.

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