Surfactant composition for emulsion polymerization
AssigneeKao Corporation
InventorsTakayuki Ikenaga, Masato Nomura
Life of this patent
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Abstract
The present invention provides a surfactant composition for emulsion polymerization containing an alkyl ether sulfate represented by formula (1) and a method for producing a polymer emulsion including emulsion polymerization of a monomer in the presence of the surfactant composition for emulsion polymerization: RO—(PO)m(EO)nSO3M (1) wherein, R represents an alkyl group having 8 to 24 carbon atoms; PO represents a propyleneoxy group; EO represents an ethyleneoxy group; m represents a number satisfying 0<m<1; n represents a number satisfying PO and EO being block added in this order; and M represents a cation.
Claims9
A surfactant composition for emulsion polymerization, comprising an alkyl ether sulfate represented by formula (1):
- RO—(PO)m(EO)nSO3M (1)
- wherein, R represents an alkyl group having 8 to 24 carbon atoms;
- PO represents a propyleneoxy group;
- EO represents an ethyleneoxy group;
- m represents an average PO addition mole number satisfying 0<m<1;
- n represents an average EO addition mole number satisfying 1n≦30, PO and EO being block added in this order;
- and M represents a cation.
A method for producing a polymer emulsion, comprising emulsion polymerization of a monomer in the presence of a surfactant composition for emulsion polymerization comprising an alkyl ether sulfate represented by formula (1):
- RO—(PO)m(EO)nSO3M (1)
- wherein, R represents an alkyl group having 8 to 24 carbon atoms;
- PO represents a propyleneoxy group;
- EO represents an ethyleneoxy group;
- m represents an average PO addition mole number satisfying 0<m<1;
- n represents an average EO addition mole number satisfying PO and EO being block added in this order;
- and M represents a cation.
Dependencies are inferred from the claim text.