Reinforcing aluminum-based filler and rubber composition...

Details Reinforcing aluminum-based filler and rubber composition... Reinforcing aluminum-based filler and rubber composition...

2005-07-28

2008-09-16

Mulcahy, Peter D (Department: 1796)

Chemistry of inorganic compounds

Treating mixture to obtain metal containing compound

Group iiia metal or beryllium

C423S629000

Reexamination Certificate

active

07425313

ABSTRACT:
A reinforcing aluminum-based filler which can be used for reinforcing diene rubber compositions intended for the manufacture of tires, comprising an aluminum (oxide-)hydroxide corresponding, with the exception of any impurities and the water of hydration, to the general formula (a and b being real numbers):in-line-formulae description="In-line Formulae" end="lead"?Al(OH)aOb, with 0<a≦3 andb=(3−a)/2,   (I)in-line-formulae description="In-line Formulae" end="tail"?the specific BET surface area of which is between 30 and 400 m2/g, the average particle size (by mass) dwof which is between 20 and 400 nm and the disagglomeration rate, α, of which, measured via an ultrasound disagglomeration test at 100% power of a 600-watt ultrasonic probe, is greater than 5×10−3μm−1/s is provided. A rubber composition suitable for the manufacture of tires comprising said aluminum-based filler as reinforcing filler.

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