PRECIPITATED SILICAS HAVING IMPROVED DENTIFRICE PERFORMANCE CHARACTERISTICS AND METHODS OF PREPARATION

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 40LURRY VISCOSITY BUILD OF LESS THAN APPROXIMATELY 20,000 CENTIPOISE AND A 10BRASS EINLEHNER ABRASI...

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Main Authors PATRICK D. MCGILL, SATISH K. WASON
Format Patent
LanguageEnglish
Published 31.07.2004
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Abstract 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 40LURRY VISCOSITY BUILD OF LESS THAN APPROXIMATELY 20,000 CENTIPOISE AND A 10BRASS 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 µm. 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 INIATIATING A PRECIPITATION REACTION BETWEEN THE REACTOR CONTENTS; AND (B) SUBJECTING THE REACTOR CONTENTS TO SHEARING FORCES AS THE REACTION PROCEEDS.
AbstractList 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 40LURRY VISCOSITY BUILD OF LESS THAN APPROXIMATELY 20,000 CENTIPOISE AND A 10BRASS 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 µm. 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 INIATIATING A PRECIPITATION REACTION BETWEEN THE REACTOR CONTENTS; AND (B) SUBJECTING THE REACTOR CONTENTS TO SHEARING FORCES AS THE REACTION PROCEEDS.
Author PATRICK D. MCGILL
SATISH K. WASON
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Snippet PRECIPITATED SILICA COMPOSITIONS, AND METHODS FOR MAKING THE SAME, WITH IMPROVED DENTIFRICE PERFORMANCE CHARACTERISTICS. IN PARTICULAR, PRECIPITATED SILICA...
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COMPOUNDS THEREOF
HUMAN NECESSITIES
HYGIENE
INORGANIC CHEMISTRY
MEDICAL OR VETERINARY SCIENCE
METALLURGY
NON-METALLIC ELEMENTS
PREPARATIONS FOR MEDICAL, DENTAL, OR TOILET PURPOSES
SPECIFIC USE OF COSMETICS OR SIMILAR TOILETPREPARATIONS
Title PRECIPITATED SILICAS HAVING IMPROVED DENTIFRICE PERFORMANCE CHARACTERISTICS AND METHODS OF PREPARATION
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