Foaming agent composition and process
AssigneeGEO Specialty Chemicals, Inc.
InventorsArpad Savoly, Dawn P. Elko
Life of this patent
Estimating the term…
Abstract
Surfactants containing a mixture of alkyl sulfate and alkyl ether sulfate in specific ratios are provided. Preferred compositions are blends of alkyl sulfate with narrow range alkoxylated alcohols are sulfonated. These compositions are used as improved foaming agent compositions and exhibit desirable foaming characteristics for use in the manufacture of gypsum board and concrete and in oil field applications.
Claims34
A composition of matter useful as a surfactant comprising a mixture of compounds, conforming to the formula II:
- R(OCH.sub.2 CH(R')).sub.y OSO.sub.3 M (II)
- where R is a fatty alkyl group, R' represents hydrogen or a lower alkyl group, M is selected from the group consisting of sodium and ammonium ions, wherein y is an integer, wherein the average value for y, for the compounds conforming to formula II, is from about 0.001 to 0.3, wherein said mixture of compounds comprises compounds having y equal to 0, compounds having y equal to 1, compounds having y equal to 2, compounds having y equal to 3, and compounds having y equal to 4, and wherein a weight ratio of the compounds having y equal to 0 to the sum of the weight of the compounds having y equal to 2 and the weight of the compounds having y equal to 3 is at least 12:1.
A foamed composition useful in the manufacture of gypsum board, said foamed gypsum composition comprising gypsum and a foamed composition useful as a surfactant comprising a mixture of compounds, conforming to the formula II:
- R(OCH.sub.2 CH(R')).sub.y OSO.sub.3 M (II)
- where R is a fatty alkyl group, R' represents hydrogen or a lower alkyl group, M is selected from the group consisting of sodium and ammonium ions, wherein y is an integer, wherein the average value for y, for the compounds conforming to formula II, is from about 0.001 to 0.3, wherein said mixture of compounds comprises compounds having y equal to 0, compounds having y equal to 1, compounds having y equal to 2, compounds having y equal to 3, and compounds having y equal to 4, and wherein a weight ratio of the compounds having y equal to 0 to the sum of the weight of the compounds having y equal to 2 and the weight of the compounds having y equal to 3 is at least 12:1.
Dependencies are inferred from the claim text.