Resorcinol or phloroglucinol condensation product for aqueous mixture purification

US4392963A · kind A · utility

Assignee

• Sartorius AG · DE

Inventors

• Horst Perl · Göttingen, DE
• Dietmar Nussbaumer · Göttingen, DE
• Horst Kluver · Dransfeld, DE
• Hans Beer · Salzhemmendorf, DE

Key dates

• Filing date: Mar 20, 1981
• Grant date: Jul 12, 1983
• Expiry date: Mar 20, 2001

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G8/04
• WIPO field: Chemical engineering
• WIPO sector: Chemistry

Abstract

Incompletely condensed aldehyde resin having a large surface area and formed in the presence of large quantities of water under mild conditions is used for removing waste products, such as urea, from the blood in hemodialysis or for removing such impurities from swimming pools or aquariums.