Chemistry of inorganic compounds – Silicon or compound thereof – Oxygen containing
Patent
1997-08-08
1999-08-10
Straub, Gary P.
Chemistry of inorganic compounds
Silicon or compound thereof
Oxygen containing
423335, 106482, 106492, C01B 3312, C04B 1404
Patent
active
059355433
ABSTRACT:
Amorphous precipitated silica which may be used to form battery separators of very low specific resistance is characterized by (a) a CTAB surface area in the range of from 140 to 185 m.sup.2 /g; (b) a DBP oil absorption in the range of from 210 to 310 cm.sup.3 /100 g; (c) a mean ultimate particle size in the range of from 10 to 18 nm; (d) a total intruded volume in the range of from 2.6 to 4 cm.sup.3 /g; and (e) an intruded volume in the range of from 0.9 to 2 cm.sup.3 /g for pores having diameters in the range of from 20 to 100 nm.
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Boyer James L.
Jones Laurence E.
Krivak Thomas G.
Wang Robert C.
Morris George D.
Nguyen Cam N.
PPG Industries Ohio Inc.
Straub Gary P.
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