Patent
THERMOPLASTIC POLYURETHANE GRAPHENE OXIDE NANOCOMPOSITES WITH ENHANCED MECHANICAL BEHAVIOR
Joao Maia
Copyright © 2026 Matter42. All rights reserved.
Patent
Atlas literature
Patent
Patent 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.
A polymer nanocomposite composition, comprising: a thermoplastic polyurethane block copolymer comprising a plurality of hard segments and a plurality of soft segments, wherein the hard se g ments have an aspect ratio between chain length and diameter that is below 2:1; and graphene oxide, present in an amount from about 0.0 5 wt. % to about 1 wt. % based on the total weight of the thermoplastic polyurethane block copolymer and graphene oxide, wherein the graphene oxide has a face surface with a lateral size between 1 and 5 microns and a thickness between 1 and 50 nanometers, wherein a face surface of a platelet of the graphene oxide is oriented substantially normal with respect to the hard segment of the thermoplastic pol y urethane, and wherein the composition exhibits an increase in elongation at break and strain at break as compared to the composition without the graphene oxide. Currently amended
The composition according to claim 1, wherein the composition exhibits an elongation at break of about 200% to about 1,000% percent as measured according to test ASTM D₆₃₈-14. Original
The composition according to claim 1, wherein the composition has a strain at break that is increased by at least 100 %, modulus is increased by up to 50 % and stress at break is increased up to 50 %, each as measured according to ASTM D₆₃₈ -1 4, as compared to the composition without the graphene oxide. Original
A method for producing the polymer nanocomposite composition according to claim 1, comprising the steps of: obtaining the ther m oplastic polyurethane and graphene oxide; and melt extruding the thermoplastic polyurethane block copolymer and graphene oxide in a twin-screw extruder without the use of a solvent and with use of at least one extensional m ixi ng element to process the composition, wherein the at least one extensional mixing element is static and does not move with the screws. Currently amended
Canceled
The composition according to claim 5, wherein the graphene oxide is present in an amount from about 0.05 to about 0.5 wt. % based on the total weight of the thermoplastic polyurethane block copolymer. Original
Materials described outside the worked examples.
thermoplastic polyurethane block copolymer
graphene oxide
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
elongation at break of composition (claim range) | 200–1000 % | thermoplastic polyurethane block copolymergraphene oxide |
tenacity of composition (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent 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.
A polymer nanocomposite composition, comprising: a thermoplastic polyurethane block copolymer comprising a plurality of hard segments and a plurality of soft segments, wherein the hard se g ments have an aspect ratio between chain length and diameter that is below 2:1; and graphene oxide, present in an amount from about 0.0 5 wt. % to about 1 wt. % based on the total weight of the thermoplastic polyurethane block copolymer and graphene oxide, wherein the graphene oxide has a face surface with a lateral size between 1 and 5 microns and a thickness between 1 and 50 nanometers, wherein a face surface of a platelet of the graphene oxide is oriented substantially normal with respect to the hard segment of the thermoplastic pol y urethane, and wherein the composition exhibits an increase in elongation at break and strain at break as compared to the composition without the graphene oxide. Currently amended
The composition according to claim 1, wherein the composition exhibits an elongation at break of about 200% to about 1,000% percent as measured according to test ASTM D₆₃₈-14. Original
The composition according to claim 1, wherein the composition has a strain at break that is increased by at least 100 %, modulus is increased by up to 50 % and stress at break is increased up to 50 %, each as measured according to ASTM D₆₃₈ -1 4, as compared to the composition without the graphene oxide. Original
A method for producing the polymer nanocomposite composition according to claim 1, comprising the steps of: obtaining the ther m oplastic polyurethane and graphene oxide; and melt extruding the thermoplastic polyurethane block copolymer and graphene oxide in a twin-screw extruder without the use of a solvent and with use of at least one extensional m ixi ng element to process the composition, wherein the at least one extensional mixing element is static and does not move with the screws. Currently amended
Canceled
The composition according to claim 5, wherein the graphene oxide is present in an amount from about 0.05 to about 0.5 wt. % based on the total weight of the thermoplastic polyurethane block copolymer. Original
Materials described outside the worked examples.
thermoplastic polyurethane block copolymer
graphene oxide
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
elongation at break of composition (claim range) | 200–1000 % | thermoplastic polyurethane block copolymergraphene oxide |
tenacity of composition (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent 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.
A polymer nanocomposite composition, comprising: a thermoplastic polyurethane block copolymer comprising a plurality of hard segments and a plurality of soft segments, wherein the hard se g ments have an aspect ratio between chain length and diameter that is below 2:1; and graphene oxide, present in an amount from about 0.0 5 wt. % to about 1 wt. % based on the total weight of the thermoplastic polyurethane block copolymer and graphene oxide, wherein the graphene oxide has a face surface with a lateral size between 1 and 5 microns and a thickness between 1 and 50 nanometers, wherein a face surface of a platelet of the graphene oxide is oriented substantially normal with respect to the hard segment of the thermoplastic pol y urethane, and wherein the composition exhibits an increase in elongation at break and strain at break as compared to the composition without the graphene oxide. Currently amended
The composition according to claim 1, wherein the composition exhibits an elongation at break of about 200% to about 1,000% percent as measured according to test ASTM D₆₃₈-14. Original
The composition according to claim 1, wherein the composition has a strain at break that is increased by at least 100 %, modulus is increased by up to 50 % and stress at break is increased up to 50 %, each as measured according to ASTM D₆₃₈ -1 4, as compared to the composition without the graphene oxide. Original
A method for producing the polymer nanocomposite composition according to claim 1, comprising the steps of: obtaining the ther m oplastic polyurethane and graphene oxide; and melt extruding the thermoplastic polyurethane block copolymer and graphene oxide in a twin-screw extruder without the use of a solvent and with use of at least one extensional m ixi ng element to process the composition, wherein the at least one extensional mixing element is static and does not move with the screws. Currently amended
Canceled
The composition according to claim 5, wherein the graphene oxide is present in an amount from about 0.05 to about 0.5 wt. % based on the total weight of the thermoplastic polyurethane block copolymer. Original
Materials described outside the worked examples.
thermoplastic polyurethane block copolymer
graphene oxide
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
elongation at break of composition (claim range) | 200–1000 % | thermoplastic polyurethane block copolymergraphene oxide |
tenacity of composition (claim range) |
Related documents with shared materials, methods, properties, or citations.
Patent
Atlas literature
Patent
Patent 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.
A polymer nanocomposite composition, comprising: a thermoplastic polyurethane block copolymer comprising a plurality of hard segments and a plurality of soft segments, wherein the hard se g ments have an aspect ratio between chain length and diameter that is below 2:1; and graphene oxide, present in an amount from about 0.0 5 wt. % to about 1 wt. % based on the total weight of the thermoplastic polyurethane block copolymer and graphene oxide, wherein the graphene oxide has a face surface with a lateral size between 1 and 5 microns and a thickness between 1 and 50 nanometers, wherein a face surface of a platelet of the graphene oxide is oriented substantially normal with respect to the hard segment of the thermoplastic pol y urethane, and wherein the composition exhibits an increase in elongation at break and strain at break as compared to the composition without the graphene oxide. Currently amended
The composition according to claim 1, wherein the composition exhibits an elongation at break of about 200% to about 1,000% percent as measured according to test ASTM D₆₃₈-14. Original
The composition according to claim 1, wherein the composition has a strain at break that is increased by at least 100 %, modulus is increased by up to 50 % and stress at break is increased up to 50 %, each as measured according to ASTM D₆₃₈ -1 4, as compared to the composition without the graphene oxide. Original
A method for producing the polymer nanocomposite composition according to claim 1, comprising the steps of: obtaining the ther m oplastic polyurethane and graphene oxide; and melt extruding the thermoplastic polyurethane block copolymer and graphene oxide in a twin-screw extruder without the use of a solvent and with use of at least one extensional m ixi ng element to process the composition, wherein the at least one extensional mixing element is static and does not move with the screws. Currently amended
Canceled
The composition according to claim 5, wherein the graphene oxide is present in an amount from about 0.05 to about 0.5 wt. % based on the total weight of the thermoplastic polyurethane block copolymer. Original
Materials described outside the worked examples.
thermoplastic polyurethane block copolymer
graphene oxide
Additional fabrication and treatment steps described in the patent.
Performance values and ranges asserted in the specification or claims.
| Property | Value | Material |
|---|---|---|
elongation at break of composition (claim range) | 200–1000 % | thermoplastic polyurethane block copolymergraphene oxide |
tenacity of composition (claim range) |
Related documents with shared materials, methods, properties, or citations.
| ≥ 90 J/mm2 |
thermoplastic polyurethane block copolymergraphene oxide |
volume loss (abrasion, claim range, S4-processed composition) | ≤ 30 % | thermoplastic polyurethane block copolymergraphene oxide |
strain at break of S4-processed nanocomposite (description) | ≥ 800 % | thermoplastic polyurethane block copolymergraphene oxide |
strain at break of KB-processed nanocomposite (description, approximate) | 300 % | thermoplastic polyurethane block copolymergraphene oxide |
graphene oxide face lateral size (claim range) | 1–5 microns | graphene oxide |
graphene oxide thickness (claim range) | 1–50 nm | graphene oxide |
XRD (002) graphitic plane peak position of graphene oxide | 10–12 deg | graphene oxide |
Thickness | 1–5 µm | — |
Graphene Oxide/Metal Nanocrystal Multilaminates the Atomic Limit for Safe, Selective Hydrogen Storage
| ≥ 90 J/mm2 |
thermoplastic polyurethane block copolymergraphene oxide |
volume loss (abrasion, claim range, S4-processed composition) | ≤ 30 % | thermoplastic polyurethane block copolymergraphene oxide |
strain at break of S4-processed nanocomposite (description) | ≥ 800 % | thermoplastic polyurethane block copolymergraphene oxide |
strain at break of KB-processed nanocomposite (description, approximate) | 300 % | thermoplastic polyurethane block copolymergraphene oxide |
graphene oxide face lateral size (claim range) | 1–5 microns | graphene oxide |
graphene oxide thickness (claim range) | 1–50 nm | graphene oxide |
XRD (002) graphitic plane peak position of graphene oxide | 10–12 deg | graphene oxide |
Thickness | 1–5 µm | — |
Graphene Oxide/Metal Nanocrystal Multilaminates the Atomic Limit for Safe, Selective Hydrogen Storage
| ≥ 90 J/mm2 |
thermoplastic polyurethane block copolymergraphene oxide |
volume loss (abrasion, claim range, S4-processed composition) | ≤ 30 % | thermoplastic polyurethane block copolymergraphene oxide |
strain at break of S4-processed nanocomposite (description) | ≥ 800 % | thermoplastic polyurethane block copolymergraphene oxide |
strain at break of KB-processed nanocomposite (description, approximate) | 300 % | thermoplastic polyurethane block copolymergraphene oxide |
graphene oxide face lateral size (claim range) | 1–5 microns | graphene oxide |
graphene oxide thickness (claim range) | 1–50 nm | graphene oxide |
XRD (002) graphitic plane peak position of graphene oxide | 10–12 deg | graphene oxide |
Thickness | 1–5 µm | — |
Graphene Oxide/Metal Nanocrystal Multilaminates the Atomic Limit for Safe, Selective Hydrogen Storage
| ≥ 90 J/mm2 |
thermoplastic polyurethane block copolymergraphene oxide |
volume loss (abrasion, claim range, S4-processed composition) | ≤ 30 % | thermoplastic polyurethane block copolymergraphene oxide |
strain at break of S4-processed nanocomposite (description) | ≥ 800 % | thermoplastic polyurethane block copolymergraphene oxide |
strain at break of KB-processed nanocomposite (description, approximate) | 300 % | thermoplastic polyurethane block copolymergraphene oxide |
graphene oxide face lateral size (claim range) | 1–5 microns | graphene oxide |
graphene oxide thickness (claim range) | 1–50 nm | graphene oxide |
XRD (002) graphitic plane peak position of graphene oxide | 10–12 deg | graphene oxide |
Thickness | 1–5 µm | — |
Graphene Oxide/Metal Nanocrystal Multilaminates the Atomic Limit for Safe, Selective Hydrogen Storage