C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 1/66 (2006.01) C11D 1/72 (2006.01) C11D 1/835 (2006.01) C11D 3/22 (2006.01) C11D 3/28 (2006.01) C11D 3/32 (2006.01) C11D 3/34 (2006.01) C11D 3/37 (2006.01) C11D 11/00 (2006.01) C11D 11/02 (2006.01) C11D 17/06 (2006.01) C11D 1/52 (2006.01)
Patent
CA 2160662
The invention disclosed is a process for making a granular laundry detergent component or composition having a bulk density of at least 650 g/l, by dissolving a structuring agent in a nonionic surfactant, said structuring agent comprising a polymer, to form a pumpable premix and finely dispersing said premix with an effective amount of powder at a given operating temperature wherein the premix has a viscosity of at least 350 mPas when measured at said operating temperature and at a shear rate of 25s-1. Preferred structurants comprise polymers having more than one functional hydroxyl group, especially polyvinyl alcohols, polyhydroxyacrylic acid polymers, and polymers such as polyvinyl pyrrolidone and PVNO, as well as sugars, artificial sweeteners and their derivatives. The premix is then processed into a granular detergent by any suitable process. Fine dispersion mixing, agglomeration, or spraying the premix onto a granular base product are preferred.
Donoghue Scott John
Fitzgibbon Kay Emma
France Paul Amaat R.g.
Hall Robin Gibson
Schmitt John Christian
Kirby Eades Gale Baker
The Procter & Gamble Company
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