Back to results
US 5,635,214 AGranted
Sorbent precipitated silica particulates
AssigneeRhone-Poulenc Chimie
InventorsJean-Luc Ponchon, Lionel Rabute
Life of this patent
Estimating the term…
Abstract
Novel precipitated silica particulates, well suited for conditioning/sorbing a wide variety of liquid active agents thereon, e.g., the vitamins, have (i) a BET surface area of at least 170 m.sup.2 /g; (ii) an oil absorption (DOP) ranging from 220 to 300 ml/g; (iii) a fill density in the packed state of at least 0.29; (iv) a mean particle diameter ranging from 80 to 150 .mu.m; and (v) a maximum grain size distribution index of 0.70.
Claims21
Sorbent precipitated silica particulates having the following properties:
- (i) a BET surface area of at least 170 m.sup.2 /g;
- (ii) an oil absorption (DOP) ranging from 220 to 280 ml/100 g;
- (iii) a fill density in the packed state of at least 0.29;
- (iv) a mean particle diameter ranging from 80 to 150 .mu.m;
- and
- (v) a maximum grain size distribution index of 0.70.
3 more elements
Dependencies are inferred from the claim text.