Patent · US Expired

Fibrous media containing millimicron-sized particulates

US4578150A · kind A · utility

33Cited by
7References
43Claims
0Family size

Assignee

Inventor

Key dates

Filing dateJul 23, 1982
Grant dateMar 25, 1986
Priority date
Expiry dateJul 23, 2002

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG01N2030/528
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

A self supporting fibrous matrix containing immobilized therein at least about 5% by weight of micro-particulate, with an average diameter less than 1 micron, preferably fumed silica, or alumina, and flocculating amounts of a neutral organic polymeric resin having oxygen atoms along the backbone thereof, is useful for fluid treatment and filtration processes, especially delipidization and depyrogenation of fluids such as serum.

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