Precipitated calcium carbonate

Details Precipitated calcium carbonate Precipitated calcium carbonate

2006-01-24

2006-01-24

Krass, Frederick (Department: 1614)

Drug, bio-affecting and body treating compositions

Dentifrices

C424S687000, C423S158000, C423S165000, C423S200000, C423S224000, C423S230000, C423S266000, C423S419100, C423S430000, C423S432000

Reexamination Certificate

active

06989142

ABSTRACT:
An abrasive precipitated calcium carbonate is provided that provides excellent cleaning properties without being excessively abrasive or damaging to gums or tooth surfaces. The abrasive, precipitated calcium carbonate has a primary particle size of about 1 μm to about 4 μm, and an aggregate size of about 3 μm to about 10 μm. Also disclosed is a method for forming calcium carbonate comprising the steps of: providing a reaction medium; introducing carbon dioxide and the calcium hydroxide slurry simultaneously into a reaction medium to form calcium carbonate while maintaining constant pH during calcium carbonate precipitation; and optionally drying the calcium carbonate slurry to form a dried calcium carbonate product. Also disclosed is a dentifrice containing the aforementioned abrasive, precipitated calcium, and one or more ingredients selected from the group consisting of humectants, thickening agents, binders, gums, stabilizing agents, antibacterial agents, fluorides, sweeteners, and surfactants.

REFERENCES:
patent: 5120521 (1992-06-01), Ebinuma et al.
patent: 5695733 (1997-12-01), Kroc et al.
patent: 6808700 (2004-10-01), Kiji et al.

Affiliated with

Also associated with

Rating

Precipitated calcium carbonate does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Precipitated calcium carbonate, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Precipitated calcium carbonate will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3528890