| abstract |
NEW MATERIAL: An alkoxylated alkyl substd. phenol sulfonate compd. of formula I [where R 1 is 8-24C alkyl; R 2 is 2-4C alkylenedioxy; M + is Na, K, Li, Ca, Ba, Sr, Mg, Zn or one of their amine salts; (n) is 1-4; when R 2 is ethylene oxide, R 1 has at least 3n C atoms, when R 2 is propylene oxide, R 1 has at least (n) C atoms, and when R 2 is butylene oxide, R 1 has at least 0.75n C atoms]. n USE: An emulsifier for recovering petroleum, a hydrotrope, anticorrosives, a lubricant for fibers, a detergent for fibers, a dye carrier, a foaming agent for concrete, etc. n PROCESS: The compd. of the formula I is obtd. by preparing an intermediate of sulfonic acid with a phenolic compd. of formula II as a sulfonating agent, adding a solvent to the intermediate, carrying out neutralization with a base and allowing the resultant sulfonate of formula III to react with an alkylene oxide. n COPYRIGHT: (C)1989,JPO |