Precipitated silica particles for cat litter

Details Precipitated silica particles for cat litter Precipitated silica particles for cat litter

2006-05-02

2006-05-02

Cooke, Colleen P (Department: 1754)

Chemistry of inorganic compounds

Silicon or compound thereof

Oxygen containing

C423S339000

Reexamination Certificate

active

07037475

ABSTRACT:
The invention pertains to precipitated silica particles having edged surfaces and a length: width: depth ratio of 1:1:1 to 3:3–1:1 with the length being 0.25 to 15 mm, an absorbing capacity PV water (wt. % >;125, a pore volume PV Hg (ml/g) 0.8–4, a pore volume PV N2 (ml/g) 0.2–1.5, a bulk density BD (g/l) 200–500, and preferably a pH<8, for use as a cat liter.

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