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Graphite nanocomposites

A technology of graphite nanoparticles, graphite, applied in nanotechnology, nanotechnology, nanotechnology for materials and surface science, etc., can solve problems such as loss of air tightness, undesired

Active Publication Date: 2011-06-29
EXXONMOBIL CHEM PAT INC
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, improved processability due to the presence of oils and resins can lead to loss of airtightness and undesirable color, along with other undesirable effects on various other properties

Method used

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  • Graphite nanocomposites
  • Graphite nanocomposites
  • Graphite nanocomposites

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0180] The above discussion can be further described with reference to the following non-limiting examples. In accordance with one or more embodiments described, the following examples are provided to illustrate the significantly improved oxygen retention and improved processability of certain elastomeric compositions suitable for use as tire innerliners.

[0181] expansion of graphite

[0182]Expandable graphite (approximately 1 g) was transferred to a crucible and placed in a preheated furnace (approximately 700°C) for 2 minutes to expand. The heated graphite was then transferred to a 1 L beaker, which was kept under a vacuum oven at 100°C until further use. Graphite is Expandable Graphite Flakes (GRAFTech) 160-50N (reported expanded volume 250 cc / g at 600°C) or Asbury Carbons Expandable Graphite 3772 (reported expansion ratio 300:1).

[0183] Sample Preparation

[0184] Five samples (Samples 1-5) were prepared by melt mixing. To prepare the samples, the The mixer wa...

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Abstract

The invention provides elastomeric compositions comprising graphite nanoparticles (preferably graphene nanoparticles) and methods for making same. Such compositions are useful for tire innertubes and tire innerliners.

Description

[0001] Inventors: Weiqing Weng, David J. Lohse, Miguel Mota, Adriana S. Silva, Edward N. Kresge technical field [0002] The present invention relates to elastomeric compositions comprising nanoparticles of an elastomer and graphite, typically used as innerliners such as tire innerliners or inner tubes, and tire innerliners and inner tubes prepared from said elastomeric compositions. Background technique [0003] There remains a need to improve the heat resistance and air retention of pneumatic tires. Elastomeric materials that do this can improve vehicle safety and performance by maintaining proper tire inflation for longer periods of time, and they can also improve fuel economy by reducing weight. However, a continuing problem in the tire and innerliner industry is the ability to improve the processability of innerliners (eg, innerliners) without compromising the airtightness and durability of the tire itself. [0004] Bromobutyl and chlorobutyl rubbers are commonly used ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B29D22/00B29D30/00C01B31/02C01B31/04C08K7/06C08L23/18C08L23/20C08L23/22C08L23/28C08J5/00
CPCC08L23/20C08L2205/02B82Y30/00C08K2201/011C08L23/28C08L23/283B60C1/0008C08L9/00C08L23/16B29D2030/0682C08K3/04C08L21/00C08K3/042C08L2666/08C08L2666/06
Inventor 翁卫青D·J·罗瑟M·O·莫塔A·S·希尔瓦E·N·克瑞斯格
Owner EXXONMOBIL CHEM PAT INC
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