首页>
外国专利>
FALLING CHICKEN ACID WITH IMPROVED SERVICE CHARACTERISTICS
FALLING CHICKEN ACID WITH IMPROVED SERVICE CHARACTERISTICS
展开▼
机译:改善了服务特性的落鸡
展开▼
页面导航
摘要
著录项
相似文献
摘要
Precipitated silica compositions, and methods for making the same, with improved dentifrice performance characteristics. In particular, precipitated silica compositions of the present invention have a 40% slurry viscosity build of less than approximately 20,000 centipoise and a 10% Brass Einlehner abrasion value of approximately 2.5 to 20.0 mg loss/100,000 rev. Precipitated silica compositions of the present invention also have reactor slurry average particle sizes (50%) of approximately 10 to 50 mu m. Methods for preparing precipitated silicas of the present invention include the steps of: (a) adding sodium silicate and a mineral acid to a reactor, thereby initiating a precipitation reaction between the reactor contents; and (b) subjecting the reactor contents to shearing forces as the reaction proceeds.
展开▼