Reinforcing aluminum-based filler and rubber composition...

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

2005-12-13

2005-12-13

Pham, Hoa Q. (Department: 2877)

Optics: measuring and testing

For size of particles

By particle light scattering

C356S338000

Reexamination Certificate

active

06975396

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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