Compositions – Water-softening or purifying or scale-inhibiting agents
Patent
1982-03-29
1984-10-02
Albrecht, Dennis L.
Compositions
Water-softening or purifying or scale-inhibiting agents
252540, 252559, 252DIG1, 568622, C07C 2906, C07C 4311, C11D 172, C11D 3075
Patent
active
044746784
ABSTRACT:
Detergent compositions particularly useful in hard-surface cleaning comprise an alkanol ethoxylate component which consists essentially of a mixture of compounds of the formula R--O--CH.sub.2 CH.sub.2 O--.sub.x H, wherein R is an alkyl group of from 8 to 18 carbon atoms, said alkyl group having a linear carbon chain in at least about 50 percent of the ethoxylate molecules; wherein the --O--CH.sub.2 --CH.sub.2 --O--.sub.x H ether substituent is, in at least 40 percent of the molecules of the mixture, bound to R at a carbon atom which is neither a terminal carbon atom nor a carbon atom adjacent to a terminal carbon atom; and wherein x has an average value for all ethoxylate molecules of the mixture which is in the range from about 3 to 9; said ethoxylate component being further characterized as having a hydrophile-lipophile balance that is between about 10.4 and 12.0; and said composition being further characterized as containing less than about 2 percent by mole, calculated on moles of the mixture of ethoxylate compounds therein, of compounds having a C.sub.8 to C.sub.18 alkyl group substituted by multiple ether substituents.
REFERENCES:
patent: 2870220 (1959-01-01), Carter
patent: 3350462 (1967-10-01), Leary
patent: 3372201 (1968-03-01), Leary
patent: 3843563 (1974-10-01), Davies
patent: 4079078 (1978-03-01), Collins
patent: 4110262 (1978-08-01), Arnau
patent: 4247424 (1981-01-01), Kuzel
patent: 4363756 (1982-12-01), Sepulueda
Union Carbide Bulletin No. F-41449B "Tergitol S Surfactants for the Textile Industry", pp. 28-29, 1970.
Kubitschek Hans E.
Lutz Eugene F.
Wood Donald L.
Albrecht Dennis L.
Lemuth Richard F.
Shell Oil Company
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