Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – At least one aryl ring which is part of a fused or bridged...
Patent
1997-05-02
1999-04-06
Cain, Edward J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
At least one aryl ring which is part of a fused or bridged...
524492, C08K 300
Patent
active
058919490
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%.
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Evans Larry R.
Fultz William C.
Cain Edward J.
J.M. Huber Corporation
Koons, Jr. Robert A.
Lindenfeldar Russell G.
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