C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/386 (2006.01) C11D 1/14 (2006.01) C11D 1/22 (2006.01) C11D 1/28 (2006.01) C11D 1/66 (2006.01) C11D 1/72 (2006.01) C11D 1/88 (2006.01) C11D 3/08 (2006.01) C11D 3/39 (2006.01) C11D 3/395 (2006.01)
Patent
CA 2088230
C 7296 (R) ABSTRACT DETERGENT COMPOSITION A chlorine bleach-free aqueous liquid machine dishwashing composition having solution pH 7-11 contains proteolytic enzyme, detergency builder, sodium silicate having SiO2:Na20 ratio of from 2.0-3.2 and organic surfactant which comprises (i) glycoside surfactant, (ii) anionic sulphate or sulphonate including a C8 to C22 alkyl or alkenyl group or (iii) ethoxylated C6 to C16 fatty alcohol with HLB of at least 10.5, or a mixture of (i), (ii) and/or (iii). If (iii) is used without (ii) it must be an ethoxylated C6 to C12 alcohol, or glycoside surfactant must also be present. Proteolytic enzyme plus the specified surfactant gives a synergistic improvement in removal of proteinaceous soil.
Gordon James
Rocourt Antoine P. A. F.
Verheul Rudolf C. S.
Bereskin & Parr Llp/s.e.n.c.r.l.,s.r.l.
Plc Unilever
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