Ferrous based friction material
US-2018291974-A1 · Oct 11, 2018 · US
Friction material
US2022010857A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2022010857-A1 |
| Application number | US-202017440242-A |
| Country | US |
| Kind code | A1 |
| Filing date | Mar 16, 2020 |
| Priority date | Mar 20, 2019 |
| Publication date | Jan 13, 2022 |
| Grant date | — |
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Abstract
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A friction material includes a friction modifier, a binder, and a fibrous material. An alkali metal salt of phosphoric acid and a metal sulfide are contained as the friction modifier. The alkali metal salt of phosphoric acid may include trisodium phosphate. A wax containing, as a main component, an ester of a higher fatty acid and a higher alcohol may be contained as the friction modifier.
First claim
Opening claim text (preview).
1 . A friction material comprising: a friction modifier; a binder; and a fibrous material, wherein an alkali metal salt of phosphoric acid and a metal sulfide are contained as the friction modifier. 2 . The friction material according to claim 1 , wherein the alkali metal salt of phosphoric acid includes trisodium phosphate. 3 . The friction material according to claim 1 , wherein a wax containing, as a main component, an ester of a higher fatty acid and a higher alcohol is contained as the friction modifier. 4 . The friction material according to claim 1 , wherein a steel fiber is contained as the fibrous material. 5 . The friction material according to claim 4 , wherein a content of the steel fiber is 20 mass % to 50 mass %. 6 . The friction material according to claim 1 , wherein a content of a copper component is 0.5 mass % or less in a copper element equivalent. 7 . The friction material according to claim 2 , wherein a wax containing, as a main component, an ester of a higher fatty acid and a higher alcohol is contained as the friction modifier. 8 . The friction material according to claim 2 , wherein a steel fiber is contained as the fibrous material. 9 . The friction material according to claim 3 , wherein a steel fiber is contained as the fibrous material. 10 . The friction material according to claim 7 , wherein a steel fiber is contained as the fibrous material. 11 . The friction material according to claim 8 , wherein a content of the steel fiber is 20 mass % to 50 mass %. 12 . The friction material according to claim 9 , wherein a content of the steel fiber is 20 mass % to 50 mass %. 13 . The friction material according to claim 10 , wherein a content of the steel fiber is 20 mass % to 50 mass %. 14 . The friction material according to claim 7 , wherein a content of a copper component is 0.5 mass % or less in a copper element equivalent. 15 . The friction material according to claim 8 , wherein a content of a copper component is 0.5 mass % or less in a copper element equivalent. 16 . The friction material according to claim 10 , wherein a content of a copper component is 0.5 mass % or less in a copper element equivalent. 17 . The friction material according to claim 13 , wherein a content of a copper component is 0.5 mass % or less in a copper element equivalent.
Assignees
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Classifications
- F16D69/026Primary
containing fibres · CPC title
Inorganic, e.g. non-asbestos mineral fibres · CPC title
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- What does patent US2022010857A1 cover?
- A friction material includes a friction modifier, a binder, and a fibrous material. An alkali metal salt of phosphoric acid and a metal sulfide are contained as the friction modifier. The alkali metal salt of phosphoric acid may include trisodium phosphate. A wax containing, as a main component, an ester of a higher fatty acid and a higher alcohol may be contained as the friction modifier.
- 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 Thu Jan 13 2022 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 3 related publications on this page (citations in our corpus or others sharing the same primary CPC).