Surfactant system of polyethoxylated compounds and glyceride compounds
AssigneePhillips Petroleum Company
InventorEarl Clark
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Abstract
In an inverse emulsion polymerization system for producing water-soluble polymers from a monomer system comprising an N-vinyl lactam and/or a vinyl-containing sulfonic acid or salt thereof utilizing a surfactant system having (1) a surfactant with a bulky lipophilic portion and a hydrophilic portion and (2) a generally straight-chain monionic surfactant having a lipophilic hydrocarbon group and an OH-terminated hydrophilic group, i.e. an alcohol. Such a system having both the right HLB and the right chemical combination results in a stable emulsion for the polymerization of these particular water-soluble monomers.
Claims6
A surfactant composition consisting essentially of
- (a) at least one glyceride,
- (b) at least one polyethoxylated sorbitol fatty acid ester, and
- (c) at least one polyethoxylated fatty alcohol, wherein said composition has an HLB number within the range of about 7 to about 9.
Dependencies are inferred from the claim text.