Reinforcing aluminium filler and rubber composition containing this filler

Aluminum (oxide-)hydroxides useful as reinforcing filler for rubber. Aluminous reinforcing fillers for diene rubber compositions to be used in the manufacture of tyres, consisting of an aluminum (oxide-)hydroxide corresponding, including impurities and water of hydration, the formula (I) Al(OH) aO b...

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Bibliographische Detailangaben
Hauptverfasser:	SIMONOT, LAURE, CUSTODERO, EMMANUEL, TARDIVAT, JEAN-CLAUDE
Format:	Patent
Sprache:	eng ; fre ; ger
Schlagworte:	ADHESIVES CHEMISTRY COMPOSITIONS BASED THEREON COMPOSITIONS OF MACROMOLECULAR COMPOUNDS COMPOUNDS OF THE METALS BERYLLIUM, MAGNESIUM, ALUMINIUM,CALCIUM, STRONTIUM, BARIUM, RADIUM, THORIUM, OR OF THERARE-EARTH METALS DEVICES OR ARRANGEMENTS RELATED TO TYRES DYES INORGANIC CHEMISTRY INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES MEASURING METALLURGY MISCELLANEOUS APPLICATIONS OF MATERIALS MISCELLANEOUS COMPOSITIONS NATURAL RESINS ORGANIC MACROMOLECULAR COMPOUNDS PAINTS PERFORMING OPERATIONS PHYSICS POLISHES PREPARATION OF CARBON BLACK REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL TESTING THEIR PREPARATION OR CHEMICAL WORKING-UP TRANSPORTING TREATMENT OF INORGANIC MATERIALS, OTHER THAN FIBROUS FILLERS,TO ENHANCE THEIR PIGMENTING OR FILLING PROPERTIES TYRE CHANGING OR REPAIRING TYRE INFLATION USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS VEHICLE TYRES VEHICLES IN GENERAL
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Beschreibung
Zusammenfassung:	Aluminum (oxide-)hydroxides useful as reinforcing filler for rubber. Aluminous reinforcing fillers for diene rubber compositions to be used in the manufacture of tyres, consisting of an aluminum (oxide-)hydroxide corresponding, including impurities and water of hydration, the formula (I) Al(OH) aO b (I) in which 0 a = 3 and b = (3-a)/2, and which has a specific BET surface of 30-400 (preferably 50-350) m 2>/g, an average particle size by weight of 20-400 (preferably 30-200) nm, and a rate of deagglomeration (alpha ) measured by the ultrasound deagglomeration test at 100 % power of a 600 watt ultrasound probe of greater than 5 X 10 -> 3> mu m -> 1>/s, preferably greater than 6 X 10 -> 3> mu m -> 1>/s. Independent claims are included covering: (a) a process for preparing the aluminous fillers (I); (b) sulfur-vulcanisable rubber compositions containing a white reinforcing filler which includes the aluminous filler (I) and a coupling agent; (c) a device (II) for measuring the rate of deagglomeration of a filler using ultrasonics; and (d) a method of measuring the rate of deagglomeration using the above device.