New electrostatographic developers are provided, containing dual function polymeric binder/charge agents. The new developers contain toner particles comprising a vinyl addition binder polymer containing a quaternary phosphonium salt, wherein the phosphonium salt has a cationic portion comprising a phosphorus atom covalently bonded to the binder polymer.
Phosphonium salts of N-phosphonomethylglycine, preparation and compositions thereof and the use thereof as herbicides and plant growth regulants
申请人:STAUFFER CHEMICAL COMPANY
公开号:EP0073574A1
公开(公告)日:1983-03-09
A compound characterised in that it consists essentially of a phosphonium cation and a glycylmethyl phosphonate anion is disclosed.
More particularly, such compounds correspond to the following general formula (I):
wherein
R1, R2, R3 and R4 independently represent C1-C10 alkyl, optionally substituted benzyl or optionally substituted phenyl, the substituents being selected from halogen C1-C4 alkoxy and C1-C4 alkyl, provided that at least one or R1, R2. R3 and R4 represents optionally substituted benzyl or substituted phenyl;
or to the following general formula (II):
wherein
R1, R2, R3 and R4 independently represent C1-C10 alkyl or phenyl.
Sucn compounds may be used as herbicides and plant growth regulants.