Appeal No. 1997-3332
Application No. 08/436,182
The appealed claims relate to a laundry detergent
composition which includes, inter alia, a nonionic ethoxylated
C -C alcohol surfactant and an anionic ethoxylated C -C10 14 10 14
alcohol sulfate salt as a second surfactant. The claimed
composition is said to minimize the amount of residual
undissolved detergent solids under cold water fabric
laundering conditions.
Claim 1 is representative of the subject matter on
appeal:
1. A powder laundry detergent composition with improved cold
water residue properties, which is a granulated blend of
ingredients comprising (1) between about 40-90 weight percent
of a water-soluble detergent builder ingredient wherein at
least one third of the detergent builder ingredient is sodium
carbonate; and (2) between about 5-40 weight percent of a
detergent active ingredient which is a surfactant blend
comprising (a) between about 40-80 weight percent, based on
the surfactant weight, of an anionic salt compound
corresponding to the formula:
R-O-(CH CH O) -SO M
2 2 n 3
where R is a C -C alkyl group, n is an average number of
10 14
ethoxylate groups between about 2-6, and M is an alkali metal
or ammonium cation, and (b) between about 20-60 weight
percent, based on surfactant weight, of a nonionic compound
corresponding to the formula:
R-O-(CH CH O) -H
2 2 n
where R is a C -C alkyl group, and n is an average number of
10 14
ethoxylate groups between about 2-6.
2
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