C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
260/485.2, 260/4
C11D 1/28 (2006.01) C11D 1/12 (2006.01)
Patent
CA 1165329
ABSTRACT The invention discloses the preparation of alkali metal isethionates from ethionic acid and the use of these isethionates to prepare surface active fatty acyl isethionates. A mixture of calcium hydroxide and alkali metal hydroxide is used to obtain the isethionate. An alkali or an alkali metal soap is used to obtain a light-coloured fatty acyl isethionate having a yellowness index less than 10 at the esterification stage.
404280
Lamberti Vincent
Pease Wilder F.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Plc Unilever
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