Aramid particles containing peroxide radical initiator

• Main Authors: SEBASTIANUS CHRISTOFFEL JOSEPHUS PIERIK, RABINDRA NATH DATTA
• Format: Patent
• Language: English
• Published: 14.05.2009
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; DEVICES OR ARRANGEMENTS RELATED TO TYRES; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR; GENERAL PROCESSES OF COMPOUNDING; LAUNDERING; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; REPAIRING, OR CONNECTING VALVES TO, INFLATABLE ELASTIC BODIESIN GENERAL; TEXTILES; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TREATMENT OF TEXTILES OR THE LIKE; TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS,FABRICS, FEATHERS, OR FIBROUS GOODS MADE FROM SUCH MATERIALS; TYRE CHANGING OR REPAIRING; TYRE INFLATION; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; VEHICLE TYRES; VEHICLES IN GENERAL; WORKING-UP

The invention pertains to an aramid particle containing a peroxide radical initiator wherein the particle contains 3-40 wt% peroxide radical initiator based on the weight of the aramid particle. The invention also relates to a particle-elastomer composition comprising: (a) 100 parts by weight of at least one natural or synthetic elastomer, particularly rubber; (b1) 0.1 to 25 parts by weight of sulfur, an amount of a sulfur donor providing the equivalent of 0.1 to 25 parts by weight of sulfur, or a mixture of sulfur and a sulfur donor to an equivalent total of 0.1 to 25 parts by weight of sulfur; or (b2) 0.1 to 20 parts by weight, preferably 1-15 parts by weight of a peroxide; and (c) 0.1 to 20 parts by weight, preferably 1-10 parts by weight of the aramid particle.