# US 2013/0158162 A1 · Friction material

> Agents: this data is available as JSON from the patentgrep API and MCP server — see https://patentgrep.com/llms.txt

- Number: US 2013/0158162 A1
- Document ID: US20130158162A1
- Status: Published application
- Kind: A1
- Application number: 13/819,941
- Filed: 2011-09-01
- Published: 2013-06-20
- Earliest claimed: 2010-09-03
- Assignees: Akebono Brake Industry Co., Ltd.; Nissan Motor Co., Ltd.
- Inventors: Naoki Hatano; Yoshio Ogata; Takayuki Fukui; Masahiro Mochida; Yasunori Takahashi
- Web page: https://patentgrep.com/patent/US20130158162A1

## CPC

- C08K 3/22: of metals
- C08K 3/32: Phosphorus-containing compounds
- F16D 69/026: {containing fibres}
- F16D 2200/0065: Inorganic, e.g. non-asbestos mineral fibres
- F16D 2200/0086: Moulding materials together by application of heat and pressure
- C08K: Use of inorganic or non-macromolecular organic substances as compounding ingredients (paints, inks, varnishes, dyes, polishes, adhesives C09)
- F16D: COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES

## Abstract

There is provided a friction material. The friction material includes a fibrous material, a friction modifier, and a binder. The friction material contains potassium titanate powders, steel fibers, calcium pyrophosphate and iron oxide. An amount of the potassium titanate powders may be 10 to 30 mass %. An amount of the steel fibers may be 1 to 7 mass %. An amount of the calcium pyrophosphate may be 5 to 20 mass %. An amount of the iron oxide may be 1 to 5 mass %.

## Claims

### Claim 1

A friction material comprising:
a fibrous material;
a friction modifier; and
a binder,
wherein the friction material contains potassium titanate powders, steel fibers, calcium pyrophosphate and iron oxide.

### Claim 2 (depends on 1)

The friction material according to claim 1, wherein
an amount of the potassium titanate powders is 10 to 30 mass %.

### Claim 3 (depends on 1)

The friction material according to claim 1, wherein
an amount of the steel fibers is 1 to 7 mass %.

### Claim 4 (depends on 1)

The friction material according to claim 1, wherein
an amount of the calcium pyrophosphate is 5 to 20 mass %.

### Claim 5 (depends on 1)

The friction material according to claim 1, wherein
an amount of the iron oxide is 1 to 5 mass %.