Bleach precursors

Details Bleach precursors Bleach precursors

C - Chemistry, Metallurgy

07

C

C07C 69/738 (2006.01) C07C 69/716 (2006.01) C07C 229/34 (2006.01) C11D 3/39 (2006.01) C11D 3/395 (2006.01)

Patent

CA 2070475

C6148 ABSTRACT A class of malonates having the structure: Image wherein: m is an integer from 0 to 1 m1 is an integer from 0 to 4; R1 is a C1-C20 radical selected from the group consisting of alkyl, cycloalkyl, alkenyl, cycloalkenyl, phenyl, aryl, benzoyl and aroyl radicals, and when m is 0 and m1 is at least 1 then can be hydrogen; R2 and R3 are radicals selected from the group consisting of C1-C12 alkyl and C5-C12 cycloalkyl radicals; and R4 is independently selected from the same group as except that R4 is other than hydrogen, benzoyl and aroyl radicals, has been identified as providing effective bleach precursors. These precursors are employed in conjunction with a peroxygen compound.

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