Organosiloxane amine copolycondensates, method of their preparation and use (II)

US4999413A · kind A · utility

Assignee

• Degussa AG · DE

Inventors

• Peter Panster · Rodenbach, DE
• Horst Grethe · Hanau, DE
• Peter Kleinschmit · Hanau, DE

Key dates

• Filing date: Nov 3, 1989
• Grant date: Mar 12, 1991
• Expiry date: Nov 3, 2009

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G77/58
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

Organosiloxane amine copolycondensates as statistic or block copolycondensates or mixtures thereof consisting of the units ##STR1## and EQU X--R.sup.4 (II) in which R.sup.1 to R.sup.4 is ##STR2## and R.sup.5 is bound directly to the nitrogen atom or the single-bonding X group and is alkylene, cycloalkylene or ##STR3## in which n is 1 to 6 and m 0 to 6. The free valences of the oxygen atoms bound to the silicon atom are saturated by silicon atoms of further groups of formula III, optionally with the inclusion of cross-linking agents, X stands for ##STR4## in which R" is H or alkyl. In addition, preparation methods and the use of the products for the removal of dissolved metals from the liquid phase or for the adsorption of gaseous compounds.