Patent · US Expired

Cellulose derivative reverse osmosis membrane and casting solution and additive for preparing the same

US4239545A · kind A · utility

9Cited by
2References
10Claims
0Family size

Assignee

Inventors

Key dates

Filing dateAug 10, 1978
Grant dateDec 16, 1980
Priority date—
Expiry dateAug 10, 1998

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB29K2001/12
  • WIPO fieldChemical engineering
  • WIPO sectorChemistry

Abstract

Cellulose derivative reverse osmosis membrane containing tetracarboxylic acid and mono- or divalent carboxylic acid.

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