Abstract: Very high structure, hybrid amorphous silica products (geltates) having very high absorptivity, in which the hybrid silica product has a % carrying capacity DBP value greater than 76.0 and a linseed oil absorption value exceeding 250 cc/100 g, and a production methodology therefor.

Abstract: Very high structure, hybrid amorphous silica products (geltates) having very high absorptivity, in which the hybrid silica product has a % carrying capacity DBP value greater than 76.0 and a linseed oil absorption value exceeding 250 cc/100 g, and a production methodology therefor.

Abstract: A transparent dentifrice is provided that has excellent abrasive performance. The dentifrice comprises from about 10 wt % to about 13 wt % water, and an abrasive, low-structure, precipitated silica having: a refractive index of from about 1.439 to 1.450, an oil absorption of from about 90 ml/100 g to about 120 ml/100 g, a light transmittance of greater than about 60%; and a Brass Einlehner abrasion value of less than about 5 mg loss/100,000 rev. Additionally the dentifrice has: a haze value of less than about 50; an RDA of about 50 to 200; and a refractive index of from about 1.439 to 1.450.

Abstract: An abrasive precipitated silica is provided that provides excellent abrasive performance and good viscosity build, but also has a relatively high degree of transmittance, and an index of refraction that is sufficiently low to allow it to be a component of a transparent toothpaste composition having a relatively high concentration of water. The amorphous precipitated silica composition has 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.

Abstract: Very high structure, hybrid amorphous silica products (geltates) having very high absorptivity, in which the hybrid silica product has a % carrying capacity DBP value greater than 76.0 and a linseed oil absorption value exceeding 250 cc/100 g, and a production methodology therefor.

Abstract: A precipitated amorphous silica product particularly useful as a highly dispersible filler to elastomeric compounds, especially rubber passenger tire tread formulations. The invention has a CTAB specific surface area of about 10 m.sup.2 /g to less than 140 m.sup.2 /g; a multi-point BET surface area of about 50-261 m.sup.2 /g; a 5% pH value of about 5.0-8.5; a DBP oil absorption of about 160-310 cm.sup.3 /100 g; a linseed oil absorption of about 150-300 cm.sup.3 /100 g; a projected surface area of no greater than about 4000 nm.sup.2 ; and a pore volume ratio of pores ranging from 175 to 275 .ANG. in diameter to all pores less than 400 .ANG. in diameter of about 10% to less than 50%.

Abstract: The invention is a natural rubber compound containing a precipitated amorphous silica filter. The silica has a CTAB specific surface area of about 10 m.sup.2 /g to less than 140 m.sup.2 /g; a multi-point BET surface area of about 50-225 m.sup.2 /g; a 5% pH value of about 5.0-8.5; a DBP oil absorption of about 160-310 cm.sup.3 /100 g; a projected surface area of no greater than about 4000 nm.sup.2 ; and a pore volume ratio of pores ranging from 175 to 275 .ANG. in diameter to all pores less than 400 .ANG. in diameter of about 10% to less than 50%.

Abstract: Precipitated silica gels having high surface areas and low oil absorption values are produced by a low temperature synthesis precipitation process. The precipitated silicas have unique flatting characteristics and are additionally useful as conditioning agents for food and salt and in dentifrice formulations.

Abstract: Novel precipitated silicon dioxide abrasive compositions which can be incorporated into therapeutic toothpaste compositions containing soluble fluoride salts are disclosed. The abrasives comprise low structure, high fluoride compatible amorphous precipitated silicon dioxides (silicas) having a controlled refractive index for use in low water clear gel dentifrice applications. Also provided are methods for preparation of the novel silicon dioxide abrasives and resulting toothpaste formulations containing such abrasives.

Abstract: Precipitated silica gels having high surface areas and low oil absorption values are produced by a low temperature synthesis precipitation process. The precipitated silicas have unique flatting characteristics and are additionally useful as conditioning agents for food and salt and in dentifrice formulations.

Abstract: Novel precipitated silicon dioxide abrasive compositions which can be incorporated into therapeutic toothpaste compositions containing soluble fluoride salts are disclosed. The abrasives comprise low structure, high fluoride compatible amorphous precipitated silicon dioxides (silicas) having a controlled refractive index for use in low water clear gel dentifrice applications. Also provided are methods for preparation of the novel silicon dioxide abrasives and resulting toothpaste formulations containing such abrasives.