Patent · US Expired

Use of hydrophobic zeolites, syringe and method for removing of preservatives from a polypeptide solution

US5936061A · kind A · utility

15Cited by

4References

31Claims

0Family size

Inventors

Sten Andersson · Hagfors, SE
Hakan Eriksson · Stockholm, SE
Kare Larsson · Bjärred, SE

Key dates

Filing date	Apr 20, 1998
Grant date	Aug 10, 1999
Priority date	—
Expiry date	Apr 20, 2018

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB01J2220/64
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

A new use of hydrophobic zeolites, viz. for removing preservatives from (poly)peptide solutions, e.g. solutions of pharmaceutical preparations. The use is of particular interest in connection with protein solutions, especially insulin solutions. The invention further relates to an injection syringe for such solutions, in which syringe a zeolite of the type at issue is placed for contact with the solution to remove preservatives therefrom.

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