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Japanese Patent JP4166369

B2

PROBLEM TO BE SOLVED: To obtain a new anionic surfactant consisting of a specific compound, useful for cleaning and emulsion polymerization. SOLUTION: This anionic surfactant consists of a compound of the formula RO-(EO)x-(PO)y-(EO)z-A [R is an 8-24C aliphatic hydrocarbon; EO is oxyethylene; PO is oxypropylene; (x) and (z) are each the mean addition number of moles of ethylene oxide, being 1-50; (y) is the mean addition number of moles of propylene oxide, being 1-50; A is a counterion-contg. anion; (EO)x, (PO)y and (EO)z are in block linkage in this order], e.g. C12H25O-(EO)2-(PO)2-(EO)3-SO3Na. This surfactant is obtained, for example, by charging lauryl alcohol and potassium hydroxide into a rotary agitation type autoclave for both ethylene oxide and propylene oxide, followed by temperature rise to effect dehydration, then by charging ethylene oxide into the autoclave to carry out a reaction, followed by charging propylene oxide into the autoclave to carry out a further reaction, and subsequently by neutralizing the reaction product with acetic acid.

JP2574144	INDUSTRIAL APPLICABILITY: Maleic acid-based copolymer, method for producing the same, and application thereof.
WO/2023/058312	CARBON MATERIAL DISPERSION AND USE THEREFOR
WO/2002/077075	METHOD FOR PRODUCING CONTROLLED-SHAPE COLLOIDAL PARTICLES WITH WATER-SOLUBLE BLOCK COPOLYMERS COMPRISING A HYDROPHOBIC BLOCK AND A HYDROPHILIC BLOCK

Atsuto Mori
Naoyuki Ikenaga
Hiroyuki Aizawa
Tomokatsu Kusumi

JP15629099A

October 15, 2008

June 03, 1999

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Kao Corporation

C09K23/52; C08G65/326; C11D1/29; C08G65/327; C08G65/332; C09K23/02; C11D1/06; C11D1/34

JP10036885A
JP61014295A
JP62246549A
JP57126888A
JP10195499A
JP60155793A
JP11228207A

Satoshi Furuya
Kaoru Furuya
Takahiko Mizobe
Shinji Mochida

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