Metal complexing polymers

US4317887A · kind A · utility

Assignee

• YEDA RESEARCH AND DEVELOPMENT CO. LTD. · IL

Inventors

• Abraham Warshawsky · Rehovot, IL
• Rami Kalir · Rehovot, IL
• Abraham Patchornik · Nes Ziona, IL

Key dates

• Filing date: Aug 10, 1979
• Grant date: Mar 2, 1982
• Expiry date: Aug 10, 1999

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02P10/20
• WIPO field: Materials, metallurgy
• WIPO sector: Chemistry

Abstract

Novel polyfunctional compounds and polymers are disclosed of the general formula ##STR1## wherein Q designates -X' or -X-.epsilon.-R; where X' designates ##STR2## where .alpha. is --OH, or --SH; PA1 .beta. is --OH, --SH, --NH.sub.2, --NO.sub.2, --CO--R.sub.2, --R.sub.2 C.dbd.N--OH, --COOH, -hal, alkyl, aryl, or aralkyl; halogen being chlorine or bromine; PA1 .gamma. is a non-interfering substituent; where .beta. and .gamma. may form together a hydrocarbyl ring system; where .delta. is --(CH.sub.2).sub.n -- or --SO.sub.2 --; where X is --O--, --S--, --NH--, --N.sup.+ R.sub.2 R.sub.3 Cl.sup.- or --P--; where PA1 .epsilon. is --(CH.sub.2).sub.n --, --SO.sub.2 --, --NH-- or --CH.sub.2 (O-CH.sub.2 --CH.sub.2).sub.n --; ##STR3## wherein the upwardly directed bonds are connected to the R polymer molecule and the downwardly directed bonds are connected to .delta. groups; PA1 n is an integer of from 1 to 15 or zero; PA1 R is a polymeric backbone, alkyl or aralkyl; and PA1 R.sub.2, R.sub.3 and R.sub.4 which may be identical or different, each designates hydrogen, alkyl, aryl or aralkyl. These compounds are useful as ion-exchange agents, extractants, biocides, flameproofing agents, fire retar…