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US 5,158,612 AGranted
Foaming agent composition and process
AssigneeHenkel Corporation
InventorsArpad Savoly, Dawn P. Elko
Life of this patent
Estimating the term…
Abstract
Narrow range alkoxylated alcohols are sulfonated and used as improved foaming agent compositions. These compositions exhibit desirable foaming characteristics for use in the manufacture of gypsum board and concrete and in oil field applications.
Claims16
A composition of matter comprising a mixture of molecules conforming the general formula II:
- CH.sub.3 (CH.sub.2).sub..times. CH.sub.2 (R).sub.y OSO.sub.3.sup.- M.sup.+(II),
- wherein x is an integer with a value in the range from about 4 to about 10, R is alkoxy, y is an integer with a value in the range from 0 to about 5, and M.sup.+ is chosen from the group consisting of sodium and ammonium ions, wherein the improvement comprises a distribution of molecules conforming to formula II in which not more than 20% by weight of the molecules conform to formula II with y=0 and at least 45% by weight of the molecules conform to formula II with y=2 or 3.
Dependencies are inferred from the claim text.