| abstract |
1,166,858. Sulphonation. COLGATE-PALMOLIVE CO. 2 Aug., 1966 [10 May, 1966], No. 20245/69. Divided out of 1,166,857. Heading C2C. Alkenyl sulphonates of 5-30 carbon atoms are produced by sulphonating a mono-olefin with SO 3 diluted with an inert gas and neutralizing, wherein the mono-olefin incorporates a phenolic antioxidant. The preferred reactants and reaction conditions are the same as those disclosed in Specification 1,166,857, and the preferred anti-oxidant is 2,6-di-tertbutylphenol. |