Alpha-aminomethylene phosphonate betaines and polymers prepared therewith
US4707306A · kind A · utility
12Cited by
11References
4Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Dec 11, 1986 |
| Grant date | Nov 17, 1987 |
| Priority date | — |
| Expiry date | Dec 11, 2006 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08F30/02
- WIPO fieldOrganic fine chemistry
- WIPO sectorChemistry
Abstract
Alpha-aminoethylene phosphonate betaines of the formula ##STR1## R.sup.1 is hydrogen or methyl; X is ##STR2## or CH.sub.2 ; a is 0, 1, 2, or 3, with the condition that when X is ##STR3## that a be greater than 1; R.sup.2 and R.sup.3 are independently C.sub.1 -C.sub.6 alkyl, aryl, benzyl, or cyclohexyl; PA0 Y is hydrogen or hydroxyl; PA0 b is 0, 1, 2, or 3; PA0 Z is C.sub.1 -C.sub.6 alkyl, aryl, benzyl, cyclohexyl, or ##STR4## and M is hydrogen, metallic cation, or ammonium ion are disclosed as are homo- and copolymers thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.