Patent · US Expired

Separation of molecules

US3943072A · kind A · utility

38Cited by
5References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateMar 28, 1974
Grant dateMar 9, 1976
Priority date
Expiry dateMar 28, 1994

Classification

  • Technology area (CPC Y)Emerging Cross-Sectional Technologies
  • CPC primaryY10S502/511
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Porous material particularly suitable for selective sorption and retention of macromolecules are manufactured by mixing a finely divided inorganic material with a fugitive additive, forming into discrete particles and heat treating to remove fugitive additive. The fugitive additive is a solid which is preferably mixed with the inorganic material after dissolving the additive in a solvent which is not a solvent for the inorganic material.

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