Carbon black, method for the production thereof, and use...

C - Chemistry – Metallurgy – 09 – C

Patent

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Details

C09C 1/44 (2006.01) C08K 3/04 (2006.01) C09C 1/50 (2006.01) C09C 1/52 (2006.01) C09C 1/54 (2006.01)

Patent

CA 2740672

The invention relates to carbon black having a C-14 content greater than 0.05 Bq/g and a ratio .DELTA.D50/Dmode of the aggregate size distribution of less than 0.7. The carbon black is produced by thermal oxidative pyrolysis or thermal cleavage of the carbon black raw material in that the carbon black raw material contains renewable carbon black raw materials and an oxygen deficiency is present in the pyrolysis/cleavage reaction. The carbon blacks can be used in rubber and rubber mixtures, plastic, printing inks, inks, inkjet inks, toners, lacquers, paints, paper, adhesives, batteries, pastes, bitumens, concrete, and other building materials and as reducing agents in metallurgy.

La présente invention concerne du noir de carbone ayant une teneur en C-14 supérieure à 0,05 Bq/g et un rapport ?D50/Dmode de la répartition de la taille des agrégats inférieur à 0,7. Le noir de carbone est produit par pyrolyse thermo-oxydative ou par craquage thermique du précurseur carboné. Selon l'invention, le précurseur carboné renferme des précurseurs carbonés renouvelables et il y a déficit en oxygène lors de la réaction de pyrolyse/craquage. Les noirs de carbone peuvent être utilisés dans le caoutchouc et les mélanges caoutchouteux, dans les matières plastiques, les encres dimprimerie, les encres, les encres pour imprimantes à jet dencre, les toners, les laques, les peintures, le papier, les colles, les piles, les pâtes, les bitumes, le béton et dautres matériaux de construction. Ils peuvent également servir dagent réducteur en métallurgie.

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