Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – Solid – shaped macroscopic article or structure
Reexamination Certificate
2011-01-18
2011-01-18
Del Cotto, Gregory R (Department: 1761)
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
Solid, shaped macroscopic article or structure
C510S302000, C510S375000, C510S444000, C510S456000, C510S505000, C252S186260
Reexamination Certificate
active
07871974
ABSTRACT:
A process for making bleach granules comprising a bleach selected from the group of diacyl, tetraacyl peroxide and mixtures thereof, selected from diacyl peroxides of the general formula:in-line-formulae description="In-line Formulae" end="lead"?R1—C(O)—OO—(O)C—R2in-line-formulae description="In-line Formulae" end="tail"?in which R1represents a C6-C18alkyl group and R2represents an aliphatic group compatible with a peroxide moiety, such that R1and R2together contain a total of 8 to 30 carbon atoms; the tetraacyl peroxide is selected from tetraacyl peroxides of the general formula:in-line-formulae description="In-line Formulae" end="lead"?R3—C(O)—OO—C(O)—(CH2)n-C(O)—OO—C(O)—R3in-line-formulae description="In-line Formulae" end="tail"?in which R3represents a C1-C9alkyl group and n represents an integer from 2 to 12, wherein the process comprises the step of dry granulating the diacyl and/or tetraacyl peroxide.
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Ellis Julie
Graham Christopher Charles
Roberts Nigel Patrick Somerville
Del Cotto Gregory R
Glazer Julia A.
Lewis Leonard W.
Miller Steven W.
The Procter & Gamble & Company
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