Friction material

US10233989B2 · US · B2

Patent metadata
FieldValue
Publication numberUS-10233989-B2
Application numberUS-201715447309-A
CountryUS
Kind codeB2
Filing dateMar 2, 2017
Priority dateMar 7, 2016
Publication dateMar 19, 2019
Grant dateMar 19, 2019

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  1. Title

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  2. Abstract

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  3. Assignees and inventors

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  4. Key dates

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  5. First independent claim

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  6. CPC / IPC classifications

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  7. Citations and related patents

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Abstract

Official abstract text for this publication.

A friction material includes a fiber base material, a friction modifying material and a binder. The friction modifying material includes alumina particles including, as a main component, θ-alumina particles. The θ-alumina particles are contained in an amount of 1 mass % or more in the friction material.

First claim

Opening claim text (preview).

What is claimed is: 1. A friction material, comprising: a fiber base material, a friction modifying material and a binder, wherein the friction modifying material comprises alumina particles comprising, as a main component, θ-alumina particles, and the θ-alumina particles are contained in an amount of 1 mass % or more in the friction material, wherein the θ-alumina particles have a specific surface area of 60 m 2 /g or more and 120 m 2 /g or less, and wherein a content of the binder is 5 mass % or more and 13 mass % or less. 2. The friction material of claim 1 , wherein the θ-alumina particles have a specific surface area of 60 m 2 /g or more and 100 m 2 /g or less.

Assignees

Inventors

Classifications

  • F16D69/026Primary

    containing fibres · CPC title

  • Fibres or whiskers · CPC title

  • Composition of linings {; Methods of manufacturing} · CPC title

  • C09K3/149Primary

    Antislip compositions · CPC title

  • Fibres; Fibrils · CPC title

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Frequently asked questions

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What does patent US10233989B2 cover?
A friction material includes a fiber base material, a friction modifying material and a binder. The friction modifying material includes alumina particles including, as a main component, θ-alumina particles. The θ-alumina particles are contained in an amount of 1 mass % or more in the friction material.
Who is the assignee on this patent?
Akebono Brake Ind
What technology area does this patent fall under?
Primary CPC classification F16D69/026. Mapped technology areas include Mechanical Engineering.
When was this patent published?
Publication date Tue Mar 19 2019 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).