C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 3/395 (2006.01) C07C 229/16 (2006.01) C07C 229/24 (2006.01) C07C 319/18 (2006.01) C11D 3/33 (2006.01) C11D 3/34 (2006.01) C11D 3/39 (2006.01) C11D 7/54 (2006.01) C07C 323/52 (2006.01)
Patent
CA 2063118
ABSTRACT OF THE DISCLOSURE A process of stabilizing bleaching agents in a detergent composition using a nonphosphorus-containing biodegradable stabilizer. The process involves incorporating into a detergent composition containing a bleaching agent, a biodegradable compound of the formula X-CH2-?-m-R in which m is NR' or sulfur; X is SO3H or COOH; Y is hydrogen, SO3H or COOH; R and R' are, independently, hydrogen, -CH(Z)CH2(Z'), -CH(Z)CH(Z')(Z") or -CH2COOH; and Z, Z' and Z" are, independently, hydrogen, OH, SO3H or COOH; or a sodium, potassium or ammonium salt thereof, in an amount sufficient to stabilize the bleaching agent. Novel detergent compositions containing the biodegradable bleach stabilizers are also disclosed.
Hartman Judithann R.
Woodbury Richard P.
Gowling Lafleur Henderson Llp
Hampshire Chemical Corp.
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