Back to results
US 2021/0198437 A1Published application
Use of carbon-nanofibres comprising carbon networks
AssigneeCarbonX IP 4 B.V.
InventorsRutger Alexander David van Raalten, Daniela Sordi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCarbonX IP 4 B.V.
InventorsRutger Alexander David van Raalten, Daniela Sordi
Estimating the term…
The invention pertains to the use of porous, chemically interconnected, carbon-nanofibre-comprising carbon networks for reinforcing elastomers. It has been found that said carbon-nanofibre-comprising carbon networks can beneficially be used when added in an amount of 10-120 phr to an elastomer, in particular to styrene-butadiene rubber (SBR). The benefits include lower tan delta at 60° C. (rolling resistance), higher tan delta at 0° C. (wet grip), better abrasion resistance, higher flexibility and lower stiffness. The reinforced elastomers can be used in many areas of technology such as tyres, conveyor belts, hoses, etc.
-6. (canceled)
A reinforced elastomer comprising 10-60 wt. % or 10-120 phr of a porous carbon network which comprises chemically interconnected carbon-nanofibres, wherein the carbon network is an intraparticle porous network wherein the carbon nanofibers are interconnected to other carbon nanofibers in the network by chemical bonds via junctions, wherein the pores in the network have an intraparticle pore diameter size of 5-150 nm using Mercury Intrusion Porosimetry according to ASTM D4404-10, wherein at least 20 wt % of the carbon in the carbon networks is in crystalline form, and the carbon nanofibers have an average aspect ratio of fibre length-to-thickness of at least 2.
Dependencies are inferred from the claim text.