Chemistry of carbon compounds – Miscellaneous organic carbon compounds – C-metal
Patent
1983-04-28
1984-07-10
Evans, J. E.
Chemistry of carbon compounds
Miscellaneous organic carbon compounds
C-metal
210700, C07F 938, C02B 506
Patent
active
044592418
ABSTRACT:
Compounds having improved properties of inhibiting the precipitation of metal ions when used in threshold amounts have been made which are derivatives of ammonia or di- or polyamines in which the amine hydrogens have been substituted with both methylenephosphonic acid groups or their salts and hydroxypropyl quaternaryammonium halide groups. Thus, ammonia can have two hydrogens replaced with methylenephosphonic groups while the third is replaced with a hydroxypropyltrimethylammonium chloride group; and three hydrogens of ethylenediamine can be replaced with methylenephosphonic groups, the fourth being replaced with a hydroxypropyltrimethylammonium chloride group.
REFERENCES:
patent: 2599807 (1952-06-01), Bersworth
patent: 2609390 (1952-09-01), Bersworth
patent: 2847442 (1958-08-01), Sallmann
patent: 3214454 (1965-10-01), Blaser et al.
patent: 3331773 (1967-07-01), Gunderson et al.
patent: 3336221 (1967-08-01), Ralston
patent: 3434969 (1969-03-01), Ralston
patent: 3674804 (1972-07-01), Redmore
patent: 3720498 (1973-03-01), Redmore
patent: 3743603 (1973-07-01), Redmore
patent: 3792084 (1974-02-01), Quinlan
patent: 3859211 (1975-01-01), Redmore
patent: 3867286 (1975-02-01), Quinlan
patent: 3925453 (1975-12-01), Clarke
patent: 3954761 (1976-05-01), Redmore
patent: 4051110 (1977-09-01), Quinlan
patent: 4075243 (1978-02-01), Quinlan
patent: 4101654 (1978-07-01), Redmore
patent: 4234511 (1980-11-01), Buckman
Medred et al., "Chem. Abstracts", vol. 46 (1952), 7996 and 7997.
Proc. Int. Water Conf., Eng. Soc. West PA, 41, pp. 167-174 (1980), "Toward a Better Understanding of Commercial Organophosphonates", Roderick A. Campbell.
Proc. Int. Water Conf., Eng. Soc. West PA, 39, pp. 89-99 (1978), "Scale and Deposit Control in Cooling Water Systems", Jeffrey R. Townsend, Karl W. Herman.
Hoechst Organic Chemicals brochure title page and pp. 4, 14 and 15.
Wilson David A.
Wilson Wilfred W.
Ancona A. C.
Evans J. E.
The Dow Chemical Company
LandOfFree
Compounds containing quaternary ammonium and methylenephosphonic does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Compounds containing quaternary ammonium and methylenephosphonic, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Compounds containing quaternary ammonium and methylenephosphonic will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1575883