PRISTINE NANO GRAPHENE-MODIFIED TIRES

Aruna Zhamu

Patent

Atlas literature

Patent

US 7,999,027

PRISTINE NANO GRAPHENE-MODIFIED TIRES

Aruna Zhamu, Bor Z. Jang

Claims

Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.

11 independent · 13 dependent

1
Independentpristine nano graphene plateletsrubber compositethermally conducting tire
A tire comprising a rubber composite, comprising at least one rubber or elastomer matrix with a ﬁrst thermal conductivity and an eﬀective amount of pristine nano graphene platelets dispersed in said matrix to make said rubber matrix composite thermally conducting, having a thermal conductivity greater than said ﬁrst thermal conductivity of the matrix.
1. 2
  Dependent← claim 1single-layer graphene
  The tire of claim 1, wherein the pristine graphene platelets comprise single-layer graphene.
2. 3
  Dependent← claim 1pristine nano graphene platelets
  The tire of claim 1, wherein the nano graphene platelets have an average thickness less than 10 nm or a speciﬁc surface area greater than 90 m2/g.
3. 4
  Dependent← claim 1pristine nano graphene platelets
  The tire of claim 1, wherein the nano graphene platelets have an average thickness less than 1 nm or a speciﬁc surface area greater than 900 m2/g.
4. 5
  Dependent← claim 1pristine nano graphene platelets
  The tire of claim 1, wherein the nano graphene platelets are produced by direct ultrasonication.
5. 6
  Dependent← claim 1pristine nano graphene platelets
  The tire of claim 1, wherein the pristine graphene platelets have a thermal conductivity greater than 1,000 W/m-k.
6. 7
  Dependent← claim 1pristine nano graphene platelets
  The tire of claim 1, wherein the pristine graphene platelets have a thermal conductivity greater than 3,000 W/m-k.
7. 8
  Dependent← claim 1rubber composite
  The tire of claim 1, wherein the rubber composite has a thermal conductivity greater than 1 W/m-k.
8. 9
  Dependent← claim 1rubber composite
  The tire of claim 1, wherein the rubber composite has a thermal conductivity greater than W/m-k.
9. 10
  Dependent← claim 1rubber composite
  The tire of claim 1, wherein the rubber composite has a thermal conductivity greater than 100 W/m-k.
10. 11
  Dependent← claim 1rubber or elastomer matrix
  The tire of claim 1, wherein the rubber or elastomer is selected from the group consisting of poly[4,4'-methylenebis(phenyl isocyanate)-alt-1,4- butanedio l/poly(butylene adipate)], poly[4,4'- methylenebis(phenyl isocyanate)-alt-1,4- butanediol/poly(butylene adipate)], poly[,^''mthylenebis(p eny c ate) alt 1, but o poly[4,4'-methylenebis(phenyl isocyanate)-alt-1,4-butanediol/di(propylene glycol)/polycaprolactone, poly[4,4'-methylenebis(phenyl isocyanate)- alt- 1,4-butanediol/polytetrahydrofuran, amine terminated polybutadienes, carboxyl terminated polybutadienes, polybutadiene, dicarboxy terminated polyisoprene, poly(styrene-co-butadiene), combinations thereof.
11. 12
  Dependent← claim 1pristine nano graphene platelets
  The tire of claim 1, wherein the eﬀective amount between 0.01 and 30 weight percent based on the
12. 13
  Dependent← claim 1pristine nano graphene platelets
  The tire of claim 1, wherein the eﬀective amount between 0.1 and 5 weight percent based on the
13. 14
  Dependent← claim 1pristine nano graphene platelets
  The tire of claim 1, wherein the pristine nano aspect ratio of between 1000 and 10,000.
15
Independent
15-19. canceled
16
Independent
canceled
17
Independent
canceled
18
Independent
canceled
19
Independent
canceled
20
Independent
20-24 canceled
21
Independent
canceled
22
Independent
canceled
23
Independent
canceled
24
Independent
canceled butyl rubber, styrene/butadiene copolymers, polydimethysiloxane, natural latex rubber, and of pristine nano graphene platelets is total weight of the rubber composite. of pristine nano graphene platelets is total weight of the rubber composite. graphite platelets have a length-to- thickness

Device structures

Layer stacks claimed or described, ordered top of device to substrate.

thermally conducting tire

pristine nano graphene plateletsfiller

rubber or elastomer matrixmatrix

Materials

Materials described outside the worked examples.

pristine nano graphene platelets

Thermally Conducting Filler

rubber composite

Composite Matrix Product

Reported properties

Performance values and ranges asserted in the specification or claims.

Property	Value	Material
pristine nano graphene platelets thermal conductivity (lower bound, claim 6)	≥ 1000	pristine nano graphene platelets
pristine nano graphene platelets thermal conductivity (lower bound, claim 7)

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