Appeal No. 2007-0360 Page 3
Application No. 11/050,001
For the purpose of deciding grouping 1), we have selected claim 1 as
representative. 37 C.F.R. § 41.37(c)(1)(vii). It reads as follows:
1. A solid particulate laundry detergent composition comprising:
(a) from about 2wt% to about 20wt% clay;
(b) from about 0.5wt% to about 10wt% polydimethylsiloxane;
(c) from about 0.1wt% to about 5wt% flocculating component;
(d) from about 5wt% to about 25wt% anionic detersive surfactant
comprising a substituted or unsubstituted linear or branched alkyl benzene
sulphonate;
(e) from about lwt% to about 22wt% zeolite;
wherein the weight ratio of zeolite to alkyl benzene sulphonate is from
about 0.1:1 to less than about 2.8:1, wherein the polydimethylsiloxane is in a
pre-emulsified form and wherein the clay and polydimethylsiloxane are
present together in the composition in the form of a co-particulate
admixture.
Separately argued claims 10, 11, 17, 25, and 26 depend on claim 1. They
read as follows:
10. A composition according to Claim 1, wherein the anionic detersive
surfactant comprises: (a) a linear or branched, substituted or unsubstituted, C10-13
alkyl benzene sulphonate; and (b) a linear or branched, substituted or
unsubstituted, C8-18 alkyl sulphate, and wherein the weight ratio of the alkyl
benzene sulphonate (a) to the alkyl sulphate (b) is greater than about 5: 1.
11. A composition according to Claim 1, wherein the composition comprises
from about 0.1wt% to about 5wt% polymeric polycarboxylate.
17. A composition according to Claim 1, wherein the polydimethylsiloxane
has a viscosity of from about 50,000cP to about 400,000cP, when measured at a
shear rate of 20s-1 and a temperature of 20°C.
25. The composition according to Claim 1, wherein the pre-emulsion form
has a viscosity of from 1,500cP to 50,000cP.
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