Organo-silica polymers
US3946061A · kind A · utility
9Cited by
1References
2Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 17, 1971 |
| Grant date | Mar 23, 1976 |
| Priority date | — |
| Expiry date | Feb 17, 1991 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08G83/001
- WIPO fieldMacromolecular chemistry, polymers
- WIPO sectorChemistry
Abstract
Organo-silica polymers having the formula: ##EQU1## WHEREIN M AND N ARE INTEGERS INDEPENDENTLY REPRESENTING THE NUMBER OF UNITS; R represents --H, --CN, --CONH.sub.2, --CONH.sub.3 .sup.+, --COOH, --COO.sup.-, --COOM, or --COOR"; R' represents --NH--, --NH.sub.2 --.sup.+, --NR"--, --NR"H--.sup.+, or --CH.sub.2 --CHR--; --CH.sub.2 --CHR--; and whenever R' contains nitrogen, R is hydrogen; R" represents an alkyl or aryl radical; M represents an alkali metal; X represents an --OH, --O.sup.-, or --OM; are suitable as sequestering, dispersing, and flocculating agents.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.