Friction drive belt and automotive accessory drive belt transmission system using the same
US-9169897-B2 · Oct 27, 2015 · US
Friction transmission belt
US2018372184A1 · US · A1
| Field | Value |
|---|---|
| Publication number | US-2018372184-A1 |
| Application number | US-201816117879-A |
| Country | US |
| Kind code | A1 |
| Filing date | Aug 30, 2018 |
| Priority date | Mar 28, 2016 |
| Publication date | Dec 27, 2018 |
| Grant date | — |
How to read this patent
A practical reading order for non-experts. Skip the full description unless you need deep technical detail.
- Title
What the patent document calls the invention.
- Abstract
A short plain-language summary of the technical disclosure.
- Assignees and inventors
Who owns or filed the patent and who is credited as inventor.
- Key dates
Filing, priority, publication, and grant dates set the timeline.
- First independent claim
The legal scope of protection — read this for what is actually claimed.
- CPC / IPC classifications
Technology tags used to group this patent with similar filings.
- Citations and related patents
Prior art links and similar publications in this corpus.
Abstract
Official abstract text for this publication.
In a friction transmission belt including a rubber layer forming a pulley contact surface, the rubber layer includes a rubber composition containing polyolefin particles and an inorganic filler. In the rubber composition, a total content of the polyolefin particles and the inorganic filler with respect to 100 parts by mass of a rubber component is 85 parts by mass or more.
First claim
Opening claim text (preview).
What is claimed is: 1 . A friction transmission belt comprising a rubber layer forming a pulley contact surface, wherein the rubber layer includes a rubber composition containing polyolefin particles, silica not receiving coupling treatment, and an inorganic filler, and in the rubber composition, a content of the polyolefin particles with respect to 100 parts by mass of a rubber component is 50 parts by mass or more, in the rubber composition, a content of the inorganic filler with respect to 100 parts by mass of a rubber component is 35 parts by mass or more, and an aspect ratio obtained by dividing maximum outer diameters of the polyolefin particles by minimum outer diameters the polyolefin particles is 2.00 or smaller. 2 . The friction transmission belt of claim 1 , wherein in the rubber composition, the total content of the polyolefin particles and the inorganic filler with respect to 100 parts by mass of the rubber component is 95 parts by mass or more. 3 . The friction transmission belt of claim 1 , wherein in the rubber composition, the total content of the polyolefin particles and the inorganic filler with respect to 100 parts by mass of the rubber component is 105 parts by mass or more. 4 . The friction transmission belt of claim 1 , wherein the polyolefin particles are ultrahigh molecular weight polyethylene having a molecular weight of 500,000 or more. 5 . The friction transmission belt of claim 1 , wherein the inorganic filler includes at least one of the silica, montmorillonite, clay, and calcium carbonate. 6 . The friction transmission belt of claim 1 , wherein in the rubber composition, a content of the silica with respect to 100 parts by mass of the rubber component is 30 parts by mass or more. 7 . The friction transmission belt of claim 1 , wherein the rubber composition does not contain a coupling agent. 8 . The friction transmission belt of claim 6 , wherein the inorganic filler includes at least Ca-montmorillonite. 9 . The friction transmission belt of claim 2 , wherein the polyolefin particles are ultrahigh molecular weight polyethylene having a molecular weight of 500,000 or more. 10 . The friction transmission belt of claim 3 , wherein the polyolefin particles are ultrahigh molecular weight polyethylene having a molecular weight of 500,000 or more.
Assignees
Inventors
Classifications
Compositions of unspecified rubbers · CPC title
- F16G1/28Primary
with a contact surface of special shape, e.g. toothed · CPC title
Use of inorganic substances as compounding ingredients · CPC title
Polyethylene · CPC title
characterised by physical features, e.g. anisotropy, viscosity or electrical conductivity (liquid crystal materials or compositions C09K19/00) · CPC title
Patent family
Related publications grouped by family.
External sources
Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US2018372184A1 cover?
- In a friction transmission belt including a rubber layer forming a pulley contact surface, the rubber layer includes a rubber composition containing polyolefin particles and an inorganic filler. In the rubber composition, a total content of the polyolefin particles and the inorganic filler with respect to 100 parts by mass of a rubber component is 85 parts by mass or more.
- Who is the assignee on this patent?
- Bando Chemical Ind
- What technology area does this patent fall under?
- Primary CPC classification F16G1/28. Mapped technology areas include Mechanical Engineering.
- When was this patent published?
- Publication date Thu Dec 27 2018 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).