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Title:
REINFORCING ALUMINOUS FILLER AND RUBBER COMPOSITION COMPRISING SUCH A FILLER
Document Type and Number:
WIPO Patent Application WO1999028376
Kind Code:
A3
Abstract:
The invention concerns an aluminous reinforcing filler capable of being used for reinforcing diene rubber compositions, consisting in an aluminium (oxide-)hydroxide corresponding, including impurities and hydration water, to formula (I) (with a and b as real numbers): Al(OH)aOb; with 0/g, the average particle size (in volume) dw ranges between 20 and 400 nm, and the deagglomeration rate alpha measured by the so-called ultrasound-deagglomeration test, at 100 % of the power of an ultrasound probe of 600 watts, is greater than 5.10<-3> mu m<-1>/s. The invention also concerns a rubber composition capable of being used for making tyres comprising as reinforcing filler said aluminous filler.

Inventors:
CUSTODERO EMMANUEL (FR)
SIMONOT LAURE (FR)
TARDIVAT JEAN-CLAUDE (FR)
Application Number:
PCT/EP1998/007680
Publication Date:
September 30, 1999
Filing Date:
November 27, 1998
Export Citation:
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Assignee:
MICHELIN & CIE (FR)
CUSTODERO EMMANUEL (FR)
SIMONOT LAURE (FR)
TARDIVAT JEAN CLAUDE (FR)
International Classes:
B60C1/00; B60C5/14; C01F7/02; C01F7/148; C01F7/34; C08K3/10; C08K3/22; C08L9/00; C08L21/00; C09C1/40; G01N15/02; G01N15/04; G01N29/00; G01N29/04; G01N15/00; (IPC1-7): C01F7/02; C01F7/34; C08K3/22; C08L21/00; B60C1/00; G01N29/00; G01N15/02
Foreign References:
EP0810258A11997-12-03
EP0807603A21997-11-19
US3268295A1966-08-23
DE830944C1952-02-07
US5403570A1995-04-04
EP0735088A11996-10-02
US5665605A1997-09-09
US5305072A1994-04-19
GB2203542A1988-10-19
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