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US 7,923,491 B2Granted
Graphite nanocomposites
AssigneeExxonMobil Chemical Patents Inc.
InventorsWeiqing Weng, David Lohse, Miguel O. Mota, Adriana S. Silva, Edward N. Kresge
Life of this patent
Estimating the term…
Abstract
Elastomeric compositions comprising graphite nanoparticles (preferably graphene nanoparticles) and methods for making same. Such compositions are useful for tire innertubes and tire innerliners.
Claims25
An elastomeric composition, comprising:
- from 0.1 to 20 phr graphite nanoparticles;
- from 1 to 99 wt % of at least one functionalized elastomer component comprising a random copolymer having at least one C4 to C7 isomonoolefin derived unit, wherein the elastomer is functionalized by a combination of a halogen and a triethylammonium group;
- and
- 10 to 200 phr of at least one filler that is not graphite.
1 more element
An elastomeric composition, comprising:
- up to 5.0 phr one or more nanoparticles comprising graphene;
- at least one elastomer component consisting essentially of poly(isoolefin-co-p-methylstyrene);
- and
- at least one filler that is not graphite.
1 more element
An air barrier comprising an elastomeric composition comprising:
- from 0.1 to 10 phr graphite nanoparticles;
- from 1 to 99 wt % of at least one elastomer component comprising a random copolymer having at least one C4 to C7 isomonoolefin derived unit;
- a polybutene oil having a number average molecular weight greater than 400 g/mol and less than 10,000 g/mol;
- and
- 10 to 200 phr of at least one filler that is not graphite.
2 more elements
Dependencies are inferred from the claim text.