Claims
- 1. An abrasive, precipitated silica having:
a refractive index of from about 1.439 to 1.450; a light transmittance of greater than about 60%; and a Brass Einlehner abrasion value of less than about 5 mg loss/100,000 rev.
- 2. The silica according to claim 1, wherein the light transmittance is greater than about 80%.
- 3. The silica according to claim 1, wherein the Brass Einlehner abrasion value is less than about 4 mg loss/100,000 revolutions.
- 4. The silica according to claim 1, wherein the silica has an oil absorption value of about 90 ml/100 g to about 120 ml/100 g .
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This is a continuation in part application of U.S. patent application Ser. No. 10/029,510, filed Dec. 21, 2001, entitled “Dentifrice Compositions”.
Continuation in Parts (1)
|
Number |
Date |
Country |
Parent |
10029510 |
Dec 2001 |
US |
Child |
10292991 |
Nov 2002 |
US |