Patent
US 10,920,045ELASTOMERIC COMPOSITION COMPRISING GRAPHENE AND TIRE COMPONENTS COMPRISING SAID COMPOSITION
Giulio CESAREO
US
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
US 10,920,045Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An elastomeric composition comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubbers comprising a styrene-butadiene copolymer (SBR) and at least 20% by weight of an isoprene polymer; (B) from 10 to 30 phr of silica having a BET surface area measured using nitrogen of from 40 to 600 m 2/g; (C) from 10 to 50 phr of amorphous carbon black; and (D) from 2 to 30 phr of graphene, characterized in that said graphene comprises nanoplatelets of graphene, wherein at least 90% of said nanoplatelets have a lateral size (x, y) from 500 to 15000 nm and a thickness (z) from 0.34 to 8 nm, wherein the C/O ratio is > 100:1; and said nanoplatelets of graphene being at least one of i) free from surfactant or ii) comprising an amount of less than 1% by weight of surfactant deposited on the surface thereof; wherein said elastomeric composition exhibits: values of elastic modulus E' at deformation rates from 0.01 to 10% that are from 25 to 55% higher than the values of elastic modulus E' at the same deformation rates of the same elastomeric composition which does not comprise said graphene; and a decrease of elastic modulus at a deformation rate of about 10% which is greater in the elastomeric composition comprising said graphene than the decrease of elastic modulus shown by the same elastomeric composition which does not comprise said graphene at the same deformation rate of about 10%. Currently amended
The elastomeric composition according to claim 1, characterized in that said graphene nanoplatelets of said component (D) have a C/O ratio > 200:1. Previously presented
The elastomeric composition according to claim 1, characterized in that said component (A) also comprises a 1,3-butadiene polymer (PB). Previously presented
The elastomeric composition according to claim 1, characterized by further comprising an ethylene-propylene-diene terpolymer (EPDM). Previously presented
The elastomeric composition according to claim 1, characterized in that said component (B) comprises from 10 to 20 phr of silica, that said component (C) comprises from 15 to 40 phr of amorphous carbon black, and that said component (D) comprises from 4 to 10 phr of graphene nanoplatelets. Previously presented
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A tire component comprising an elastomeric composition comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubbers comprising a styrene-butadiene copolymer (SBR) and at least 20% by weight of an isoprene polymer; (B) from 10 to 30 phr of silica having a BET surface area measured using nitrogen of from 40 to 600 m 2/g; (C) from 10 to 50 phr of amorphous carbon black; and (D) from 2 to 30 phr of graphene, characterized in that said graphene comprises nanoplatelets of graphene, wherein at least 90% of said nanoplatelets have a lateral size (x, y) from 500 to 15000 nm and a thickness (z) from 0.34 to 8 nm, wherein the C/O ratio is > 100:1; and said nanoplatelets of graphene being at least one of i) free from surfactant or ii) comprising an amount of less than 1% by weight of surfactant deposited on the surface thereof; wherein said elastomeric composition exhibits: values of elastic modulus E' at deformation rates from 0.01 to 10% that are from 25 to 55% higher than the values of elastic modulus E' at the same deformation rates of the same elastomeric composition which does not comprise said graphene; and a decrease of elastic modulus at a deformation rate of about 10% which is greater in the elastomeric composition comprising said graphene than the decrease of elastic modulus shown by the same elastomeric composition which does not comprise said graphene at the same deformation rate of about 10%. Currently amended
The tire component according to claim 12, wherein said component is a tread. Previously presented
The tire component according to claim 12, group consisting of: an inner tube, a tubeless tire, of a bicycle tire. Previously presented
The tire component according to claim 12, component (D) have a C/O ratio > 200:1 and are and coupling agents. Previously presented wherein said component is selected from the an inner liner of the tubeless tire, and a carcass characterized in that said component (D) Previously presented wherein said graphene nanoplatelets of the free from surfactants, functionalizing agents,
Layer stacks claimed or described, ordered top of device to substrate.
tire component
tire tread
bicycle tire component (inner tube/tubeless tire)
Materials described outside the worked examples.
blend of rubbers
isoprene polymer
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Elastic modulus E' increase relative to composition without graphene at deformation rates 0.01-10% | — | blend of rubbers |
Greater decrease of elastic modulus E' at ~10% deformation rate in composition with graphene vs. without graphene |
Patent
Atlas literature
Patent
US 10,920,045Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An elastomeric composition comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubbers comprising a styrene-butadiene copolymer (SBR) and at least 20% by weight of an isoprene polymer; (B) from 10 to 30 phr of silica having a BET surface area measured using nitrogen of from 40 to 600 m 2/g; (C) from 10 to 50 phr of amorphous carbon black; and (D) from 2 to 30 phr of graphene, characterized in that said graphene comprises nanoplatelets of graphene, wherein at least 90% of said nanoplatelets have a lateral size (x, y) from 500 to 15000 nm and a thickness (z) from 0.34 to 8 nm, wherein the C/O ratio is > 100:1; and said nanoplatelets of graphene being at least one of i) free from surfactant or ii) comprising an amount of less than 1% by weight of surfactant deposited on the surface thereof; wherein said elastomeric composition exhibits: values of elastic modulus E' at deformation rates from 0.01 to 10% that are from 25 to 55% higher than the values of elastic modulus E' at the same deformation rates of the same elastomeric composition which does not comprise said graphene; and a decrease of elastic modulus at a deformation rate of about 10% which is greater in the elastomeric composition comprising said graphene than the decrease of elastic modulus shown by the same elastomeric composition which does not comprise said graphene at the same deformation rate of about 10%. Currently amended
The elastomeric composition according to claim 1, characterized in that said graphene nanoplatelets of said component (D) have a C/O ratio > 200:1. Previously presented
The elastomeric composition according to claim 1, characterized in that said component (A) also comprises a 1,3-butadiene polymer (PB). Previously presented
The elastomeric composition according to claim 1, characterized by further comprising an ethylene-propylene-diene terpolymer (EPDM). Previously presented
The elastomeric composition according to claim 1, characterized in that said component (B) comprises from 10 to 20 phr of silica, that said component (C) comprises from 15 to 40 phr of amorphous carbon black, and that said component (D) comprises from 4 to 10 phr of graphene nanoplatelets. Previously presented
Canceled
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A tire component comprising an elastomeric composition comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubbers comprising a styrene-butadiene copolymer (SBR) and at least 20% by weight of an isoprene polymer; (B) from 10 to 30 phr of silica having a BET surface area measured using nitrogen of from 40 to 600 m 2/g; (C) from 10 to 50 phr of amorphous carbon black; and (D) from 2 to 30 phr of graphene, characterized in that said graphene comprises nanoplatelets of graphene, wherein at least 90% of said nanoplatelets have a lateral size (x, y) from 500 to 15000 nm and a thickness (z) from 0.34 to 8 nm, wherein the C/O ratio is > 100:1; and said nanoplatelets of graphene being at least one of i) free from surfactant or ii) comprising an amount of less than 1% by weight of surfactant deposited on the surface thereof; wherein said elastomeric composition exhibits: values of elastic modulus E' at deformation rates from 0.01 to 10% that are from 25 to 55% higher than the values of elastic modulus E' at the same deformation rates of the same elastomeric composition which does not comprise said graphene; and a decrease of elastic modulus at a deformation rate of about 10% which is greater in the elastomeric composition comprising said graphene than the decrease of elastic modulus shown by the same elastomeric composition which does not comprise said graphene at the same deformation rate of about 10%. Currently amended
The tire component according to claim 12, wherein said component is a tread. Previously presented
The tire component according to claim 12, group consisting of: an inner tube, a tubeless tire, of a bicycle tire. Previously presented
The tire component according to claim 12, component (D) have a C/O ratio > 200:1 and are and coupling agents. Previously presented wherein said component is selected from the an inner liner of the tubeless tire, and a carcass characterized in that said component (D) Previously presented wherein said graphene nanoplatelets of the free from surfactants, functionalizing agents,
Layer stacks claimed or described, ordered top of device to substrate.
tire component
tire tread
bicycle tire component (inner tube/tubeless tire)
Materials described outside the worked examples.
blend of rubbers
isoprene polymer
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Elastic modulus E' increase relative to composition without graphene at deformation rates 0.01-10% | — | blend of rubbers |
Greater decrease of elastic modulus E' at ~10% deformation rate in composition with graphene vs. without graphene |
Patent
Atlas literature
Patent
US 10,920,045Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An elastomeric composition comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubbers comprising a styrene-butadiene copolymer (SBR) and at least 20% by weight of an isoprene polymer; (B) from 10 to 30 phr of silica having a BET surface area measured using nitrogen of from 40 to 600 m 2/g; (C) from 10 to 50 phr of amorphous carbon black; and (D) from 2 to 30 phr of graphene, characterized in that said graphene comprises nanoplatelets of graphene, wherein at least 90% of said nanoplatelets have a lateral size (x, y) from 500 to 15000 nm and a thickness (z) from 0.34 to 8 nm, wherein the C/O ratio is > 100:1; and said nanoplatelets of graphene being at least one of i) free from surfactant or ii) comprising an amount of less than 1% by weight of surfactant deposited on the surface thereof; wherein said elastomeric composition exhibits: values of elastic modulus E' at deformation rates from 0.01 to 10% that are from 25 to 55% higher than the values of elastic modulus E' at the same deformation rates of the same elastomeric composition which does not comprise said graphene; and a decrease of elastic modulus at a deformation rate of about 10% which is greater in the elastomeric composition comprising said graphene than the decrease of elastic modulus shown by the same elastomeric composition which does not comprise said graphene at the same deformation rate of about 10%. Currently amended
The elastomeric composition according to claim 1, characterized in that said graphene nanoplatelets of said component (D) have a C/O ratio > 200:1. Previously presented
The elastomeric composition according to claim 1, characterized in that said component (A) also comprises a 1,3-butadiene polymer (PB). Previously presented
The elastomeric composition according to claim 1, characterized by further comprising an ethylene-propylene-diene terpolymer (EPDM). Previously presented
The elastomeric composition according to claim 1, characterized in that said component (B) comprises from 10 to 20 phr of silica, that said component (C) comprises from 15 to 40 phr of amorphous carbon black, and that said component (D) comprises from 4 to 10 phr of graphene nanoplatelets. Previously presented
Canceled
Canceled
Canceled
Canceled
A tire component comprising an elastomeric composition comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubbers comprising a styrene-butadiene copolymer (SBR) and at least 20% by weight of an isoprene polymer; (B) from 10 to 30 phr of silica having a BET surface area measured using nitrogen of from 40 to 600 m 2/g; (C) from 10 to 50 phr of amorphous carbon black; and (D) from 2 to 30 phr of graphene, characterized in that said graphene comprises nanoplatelets of graphene, wherein at least 90% of said nanoplatelets have a lateral size (x, y) from 500 to 15000 nm and a thickness (z) from 0.34 to 8 nm, wherein the C/O ratio is > 100:1; and said nanoplatelets of graphene being at least one of i) free from surfactant or ii) comprising an amount of less than 1% by weight of surfactant deposited on the surface thereof; wherein said elastomeric composition exhibits: values of elastic modulus E' at deformation rates from 0.01 to 10% that are from 25 to 55% higher than the values of elastic modulus E' at the same deformation rates of the same elastomeric composition which does not comprise said graphene; and a decrease of elastic modulus at a deformation rate of about 10% which is greater in the elastomeric composition comprising said graphene than the decrease of elastic modulus shown by the same elastomeric composition which does not comprise said graphene at the same deformation rate of about 10%. Currently amended
The tire component according to claim 12, wherein said component is a tread. Previously presented
The tire component according to claim 12, group consisting of: an inner tube, a tubeless tire, of a bicycle tire. Previously presented
The tire component according to claim 12, component (D) have a C/O ratio > 200:1 and are and coupling agents. Previously presented wherein said component is selected from the an inner liner of the tubeless tire, and a carcass characterized in that said component (D) Previously presented wherein said graphene nanoplatelets of the free from surfactants, functionalizing agents,
Layer stacks claimed or described, ordered top of device to substrate.
tire component
tire tread
bicycle tire component (inner tube/tubeless tire)
Materials described outside the worked examples.
blend of rubbers
isoprene polymer
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Elastic modulus E' increase relative to composition without graphene at deformation rates 0.01-10% | — | blend of rubbers |
Greater decrease of elastic modulus E' at ~10% deformation rate in composition with graphene vs. without graphene |
Patent
Atlas literature
Patent
US 10,920,045Patent drawings and their descriptions. Click a drawing to enlarge it.
Claims define the patent's legal scope. Independent claims stand alone; dependent claims (nested) narrow them. Click a claim to expand its dependents.
An elastomeric composition comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubbers comprising a styrene-butadiene copolymer (SBR) and at least 20% by weight of an isoprene polymer; (B) from 10 to 30 phr of silica having a BET surface area measured using nitrogen of from 40 to 600 m 2/g; (C) from 10 to 50 phr of amorphous carbon black; and (D) from 2 to 30 phr of graphene, characterized in that said graphene comprises nanoplatelets of graphene, wherein at least 90% of said nanoplatelets have a lateral size (x, y) from 500 to 15000 nm and a thickness (z) from 0.34 to 8 nm, wherein the C/O ratio is > 100:1; and said nanoplatelets of graphene being at least one of i) free from surfactant or ii) comprising an amount of less than 1% by weight of surfactant deposited on the surface thereof; wherein said elastomeric composition exhibits: values of elastic modulus E' at deformation rates from 0.01 to 10% that are from 25 to 55% higher than the values of elastic modulus E' at the same deformation rates of the same elastomeric composition which does not comprise said graphene; and a decrease of elastic modulus at a deformation rate of about 10% which is greater in the elastomeric composition comprising said graphene than the decrease of elastic modulus shown by the same elastomeric composition which does not comprise said graphene at the same deformation rate of about 10%. Currently amended
The elastomeric composition according to claim 1, characterized in that said graphene nanoplatelets of said component (D) have a C/O ratio > 200:1. Previously presented
The elastomeric composition according to claim 1, characterized in that said component (A) also comprises a 1,3-butadiene polymer (PB). Previously presented
The elastomeric composition according to claim 1, characterized by further comprising an ethylene-propylene-diene terpolymer (EPDM). Previously presented
The elastomeric composition according to claim 1, characterized in that said component (B) comprises from 10 to 20 phr of silica, that said component (C) comprises from 15 to 40 phr of amorphous carbon black, and that said component (D) comprises from 4 to 10 phr of graphene nanoplatelets. Previously presented
Canceled
Canceled
Canceled
Canceled
A tire component comprising an elastomeric composition comprising, based upon parts by weight per 100 parts by weight of rubber (phr): (A) 100 phr of a blend of rubbers comprising a styrene-butadiene copolymer (SBR) and at least 20% by weight of an isoprene polymer; (B) from 10 to 30 phr of silica having a BET surface area measured using nitrogen of from 40 to 600 m 2/g; (C) from 10 to 50 phr of amorphous carbon black; and (D) from 2 to 30 phr of graphene, characterized in that said graphene comprises nanoplatelets of graphene, wherein at least 90% of said nanoplatelets have a lateral size (x, y) from 500 to 15000 nm and a thickness (z) from 0.34 to 8 nm, wherein the C/O ratio is > 100:1; and said nanoplatelets of graphene being at least one of i) free from surfactant or ii) comprising an amount of less than 1% by weight of surfactant deposited on the surface thereof; wherein said elastomeric composition exhibits: values of elastic modulus E' at deformation rates from 0.01 to 10% that are from 25 to 55% higher than the values of elastic modulus E' at the same deformation rates of the same elastomeric composition which does not comprise said graphene; and a decrease of elastic modulus at a deformation rate of about 10% which is greater in the elastomeric composition comprising said graphene than the decrease of elastic modulus shown by the same elastomeric composition which does not comprise said graphene at the same deformation rate of about 10%. Currently amended
The tire component according to claim 12, wherein said component is a tread. Previously presented
The tire component according to claim 12, group consisting of: an inner tube, a tubeless tire, of a bicycle tire. Previously presented
The tire component according to claim 12, component (D) have a C/O ratio > 200:1 and are and coupling agents. Previously presented wherein said component is selected from the an inner liner of the tubeless tire, and a carcass characterized in that said component (D) Previously presented wherein said graphene nanoplatelets of the free from surfactants, functionalizing agents,
Layer stacks claimed or described, ordered top of device to substrate.
tire component
tire tread
bicycle tire component (inner tube/tubeless tire)
Materials described outside the worked examples.
blend of rubbers
isoprene polymer
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
Elastic modulus E' increase relative to composition without graphene at deformation rates 0.01-10% | — | blend of rubbers |
Greater decrease of elastic modulus E' at ~10% deformation rate in composition with graphene vs. without graphene |
silica
SiO₂
graphene nanoplatelets
C
styrene-butadiene copolymer (SBR)
1,3-butadiene polymer (PB)
ethylene-propylene-diene terpolymer (EPDM)
blend of rubbers |
Duration | 5–6 minutes | — |
Thickness | 10000–15000 nm | — |
Thickness | 0.34–4 nm | — |
Thickness | 50–50000 nm | — |
Thickness | 0.34–50 nm | — |
Thickness | 100–25000 nm | — |
Thickness | 500–15000 nm | — |
Thickness | 0.34–20 nm | — |
Thickness | 0.34–8 nm | — |
Duration | ≤ 2 seconds | — |
silica
SiO₂
graphene nanoplatelets
C
styrene-butadiene copolymer (SBR)
1,3-butadiene polymer (PB)
ethylene-propylene-diene terpolymer (EPDM)
blend of rubbers |
Duration | 5–6 minutes | — |
Thickness | 10000–15000 nm | — |
Thickness | 0.34–4 nm | — |
Thickness | 50–50000 nm | — |
Thickness | 0.34–50 nm | — |
Thickness | 100–25000 nm | — |
Thickness | 500–15000 nm | — |
Thickness | 0.34–20 nm | — |
Thickness | 0.34–8 nm | — |
Duration | ≤ 2 seconds | — |
silica
SiO₂
graphene nanoplatelets
C
styrene-butadiene copolymer (SBR)
1,3-butadiene polymer (PB)
ethylene-propylene-diene terpolymer (EPDM)
blend of rubbers |
Duration | 5–6 minutes | — |
Thickness | 10000–15000 nm | — |
Thickness | 0.34–4 nm | — |
Thickness | 50–50000 nm | — |
Thickness | 0.34–50 nm | — |
Thickness | 100–25000 nm | — |
Thickness | 500–15000 nm | — |
Thickness | 0.34–20 nm | — |
Thickness | 0.34–8 nm | — |
Duration | ≤ 2 seconds | — |
silica
SiO₂
graphene nanoplatelets
C
styrene-butadiene copolymer (SBR)
1,3-butadiene polymer (PB)
ethylene-propylene-diene terpolymer (EPDM)
blend of rubbers |
Duration | 5–6 minutes | — |
Thickness | 10000–15000 nm | — |
Thickness | 0.34–4 nm | — |
Thickness | 50–50000 nm | — |
Thickness | 0.34–50 nm | — |
Thickness | 100–25000 nm | — |
Thickness | 500–15000 nm | — |
Thickness | 0.34–20 nm | — |
Thickness | 0.34–8 nm | — |
Duration | ≤ 2 seconds | — |