Patent · US Expired

Separation of more planar molecules from less planar molecules

US4267055A · kind A · utility

5Cited by
4References
10Claims
0Family size

Assignee

Inventor

Key dates

Filing dateSep 4, 1979
Grant dateMay 12, 1981
Priority date
Expiry dateSep 4, 1999

Classification

  • Technology area (CPC C)Chemistry; Metallurgy
  • CPC primaryC07C7/12
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Planar organic molecules, such as divinylbenzene or para-dioxin molecules, are adsorbed from mixtures of planar and non-planar molecules, such as commercial divinylbenzenes containing non-planar ethylvinylbenzene, or commercial 2,4,5-T herbicide containing non-planar 2,4,5-trichlorophenoxyacetic acid, by partially pyrolyzed, macroporous, resinous polymer particles.

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