Use of a high structure and dispersible precipitated silica...

Details Use of a high structure and dispersible precipitated silica... Use of a high structure and dispersible precipitated silica...

2006-04-25

2006-04-25

Krass, Frederick (Department: 1614)

Drug, bio-affecting and body treating compositions

Dentifrices

C424S052000

Reexamination Certificate

active

07033576

ABSTRACT:
The invention concerns the use, as thickening or texturing agent in toothpaste compositions, of a highly dispersible precipitated silica having a pH of 3.5 to 9, a DOP oil absorption higher than 200 ml/g, a CTAB specific surface area from 70 to 250 m2, a median diameter of at least 20 μm determined by ultrasound-free laser diffraction, a residual anion rate, expressed in sodium sulphate, less than 5 wt. %.

REFERENCES:
patent: 5419888 (1995-05-01), McGill
patent: 5484581 (1996-01-01), Esch
patent: 5647903 (1997-07-01), McGill
patent: 0 345 109 (1989-12-01), None
patent: 97/46485 (1997-12-01), None
patent: 99/36360 (1999-07-01), None
patent: 00/64810 (2000-11-01), None
Patent Abstracts of Japan, vol. 009, No. 108 (C-280), May 11, 1985 & JP 60 001115 A (Central Glass KK), Jan. 07, 1985.
Patent Abstracts of Japan, vol. 011, No. 297 (C-448), Sep. 25, 1987 & JP 62 087507 A (Fuji Debuison Kagaku KK), Apr. 22, 1987.
International Search Report, Apr. 2002.

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