Process for preparing ether-capped poly(oxyalkylated) alcohol surfactants

US6495727B1 · kind B1 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Glenn Thomas Jordan, IV · Indian Springs, US
• Larry E. Miller · Bettendorf, US
• Donald Levengood · Sharonville, US
• Mark Robert Sivik · Lancaster, US
• Bernard William Kluesener · Cadiz, US
• Terry Franklin Formyduval · Cincinnati, US
• Deborah Jean Back · Cleves, US

Key dates

• Filing date: May 4, 2001
• Grant date: Dec 17, 2002
• Expiry date: May 4, 2021

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C08G2650/34
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

A process for preparing an ether-capped poly(oxyalkylated) alcohol surfactant having the formulaR1O[CH2CH(R3)O]xCH2CH(OH)CH2OR2wherein R1 and R2 are linear or branched, saturated or unsaturated, aliphatic or aromatic hydrocarbon radicals having from 1 to about 30 carbon atoms; R3 is H, or a linear aliphatic hydrocarbon radical having from 1 to about 4 carbon atoms; x is an integer having an average value from 1 to about 30, wherein when x is about 2 or greater R3 may be the same or different; further wherein when x is about 15 or greater and R3 is H and methyl, at least four of R3 are methyl, further wherein when x is about 15 or greater and R3 includes H and from 1 to 3 methyl groups, then at least one R3 is ethyl, propyl or butyl, further wherein R2 can optionally be alkoxylated, wherein said alkoxy is selected from ethoxy, propoxy, butoxy and mixtures thereof; said process comprising the steps of:(b) providing a glycidyl ether having the formula:  wherein R2 is defined as above;(c) providing an ethoxylated alcohol having the formula:  wherein R1, R3 and x are defined as above;(f) reacting said glycidyl ether with said ethoxylated alcohol to form said surfactant in th…