Abrasion resistant composites

Details Abrasion resistant composites Abrasion resistant composites

2009-01-26

2009-12-29

Lipman, Bernard (Department: 1796)

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...

C524S526000, C524S574000, C524S575500, C428S492000

Reexamination Certificate

active

07638567

ABSTRACT:
In various embodiments, the present inventions provide a rubber composite having an abrasion resistance better than about 125 mm3under DIN 53516 and comprising a natural rubber, between about 15 to about 25 parts per hundred rubber (PHR) of a butadiene, between about 20 to about 40 PHR of a silica; and between about 0.4 to about 4 PHR of an organosilane polysulfur cross-linking agent. Also provided in various embodiments are multiply rubber materials having a first ply of the above composite and a second thinner ply of a styrene-butadiene rubber.

REFERENCES:
patent: 2002/0062894 (2002-05-01), Miner et al.
patent: 2004/0092644 (2004-05-01), Labauze

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