Unilever Patent Holdings B.v.

Chesebrough-pond's USA Co., Division of Conopco, Inc.

Graham T Brown

Theo J Osinga

Andrew T Steel

Michael J Parkingston

Ian G Lyle

Michael J Parkington

Unus S Adam

Aluminosilicates in the form of P type zeolites are used as detergency builders and have a silicon to aluminium ratio not greater than 1.33, preferably above 0.9. These zeolites will usually have a calcium binding capacity of at least 150 mg CaO per gram of anhydrous aluminosilicate. A preferred form of the zeolite P has a silicon to aluminium ratio up to 1.15, and preferably above 0.9, with a tetragonally distorted cubic crystal structure. A process of the preparation of these zeolite P builders is described.

Aluminosilicates and detergent composition

Type B aluminosilicates with low Si:Al ratio for detergent use

The invention relates to an oral composition for the care of the mouth to inhibit oral bacteria and to neutralize acids, produced by oral bacteria. This achieved by inclusion in the oral composition of a hydrotalcite-like material of a particular general formula, typical representatives being zinc aluminum hydrotalcite (Zn.sub.12 Al.sub.6 (OH).sub.36 (NO.sub.3).sub.6 H.sub.2 O) and copper magnesium aluminum hydrotalcite (Cu.sub.3 Mg.sub.9 Al.sub.4 (OH).sub.32 Cl.sub.4 H.sub.2 O). These hydrotalcite-like materials show significant anti-plaque activity. Typical examples of oral compositions are toothpastes and mouth rinses.

Oral compositions

Growing community of inventors

Wirral, United Kingdom

Graham T Brown