Patent · US Expired

Hydrocarbon oils containing 1 to 10 percent emulsified water and emulsifiers therefor

US4315755A · kind A · utility

20Cited by

3References

11Claims

0Family size

Assignee

Berol Kemi AB

Inventors

Karl M. E. Hellsten · Ödsmål, SE
Inger G. Johansson · Svanesund, SE
Birgit Tora Gunvor Karlsson · Stenungsund, SE

Key dates

Filing date	Jun 30, 1980
Grant date	Feb 16, 1982
Priority date	—
Expiry date	Jun 30, 2000

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC10L1/328
WIPO fieldBasic materials chemistry
WIPO sectorChemistry

Abstract

Hydrocarbon oils containing 1 to 10% emulsified water are provided, having as the emulsifier: PA0 (a) a nonionic surface-active ethylene oxide adduct having the general formula: ##STR1## in which: n.sub.1 =1 to 5; PA0 n.sub.2 =a number selected to give a polyethylene glycol chain in a weight percent within the range from about 50 to about 60% by weight of the adduct; PA0 R=alkyl of from about one to about twenty-four carbon atoms, the alkylphenyl group having from about twelve to about thirty carbon atoms; and PA0 (b) the calcium salt of dodecylbenzene sulphonic acid. The weight ratio nonionic surface-active ethylene oxide adduct to calcium salt of dodecylbenzene sulphonic acid is from about 80:20 to about 40:60. The emulsifier emulsifies from 1 to 10% by weight of water in the hydrocarbon oil.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.