IP Library › Granted Patent US 10,641,355
Granted Patent B2
US 10,641,355 · App. 14/396,788 · Granted May 5, 2020

Transmission belt

Inventors: Takeshi Nishiyama (Hyogo, JP); Susumu Takaba (Hyogo, JP); Hisato Ishiguro (Hyogo, JP)
Assignee: Mitsuboshi Belting Ltd.
F16G1/21C08K3/36C08K5/20F16G1/10F16G1/12F16G1/28F16G5/08F16G5/10F16G5/20C08K2201/006
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Quick Facts
Patent No.
US 10,641,355
App. No.
14/396,788
Granted
May 5, 2020
Kind
B2
Abstract

The present invention relates to a transmission belt containing a core wire extending in a lengthwise direction of the belt, an adhesive rubber layer in contact with at least a part of the core wire, a back surface rubber layer formed on one surface of the adhesive rubber layer, and an inner surface rubber layer formed on the other surface of the adhesive rubber layer and engaging or in contact with a pulley, in which the adhesive rubber layer is formed by a vulcanized rubber composition containing a rubber component, a fatty acid amide and a silica.

Claims (8)

1. A transmission belt comprising a core wire extending in a lengthwise direction of the belt, an adhesive rubber layer in contact with at least a part of the core wire, a back surface rubber layer formed on one surface of the adhesive rubber layer, and an inner surface rubber layer formed on the other surface of the adhesive rubber layer and engaging or in contact with a pulley,

wherein the adhesive rubber layer is formed by a vulcanized rubber composition comprising a rubber component, a fatty acid amide and a silica.

2. The transmission belt according to claim 1 , wherein the proportion of the fatty acid amide is from 0.3 to 10 parts by mass per 100 parts by mass of the rubber component.

3. The transmission belt according to claim 1 , wherein the proportion of the fatty acid amide is from 1 to 30 parts by mass per 100 parts by mass of the silica.

4. The transmission belt according to claim 1 , wherein the fatty acid amide comprises a fatty acid amide having a saturated or unsaturated higher fatty acid residue having from 10 to 26 carbon atoms or a higher amine residue having from 10 to 26 carbon atoms.

5. The transmission belt according to claim 1 , wherein the silica has a nitrogen adsorption specific surface area according to BET method of from 50 to 400 m 2 /g.

6. The transmission belt according to claim 1 , wherein the rubber component comprises chloroprene rubber.

7. The transmission belt according to claim 1 , which is a friction transmission belt.

Assignments (1)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 11, 2014
From: NISHIYAMA, TAKESHI; TAKABA, SUSUMU; ISHIGURO, HISATO
To: MITSUBOSHI BELTING LTD.
Reel/Frame 034143/0155 →
Priority Claims (2)
JP 2012-100332 · Apr 25, 2012 · national
JP 2012-231627 · Oct 19, 2012 · national
Continuity (1)
Related Publication 20150111677A1 · Apr 23, 2015
Cited By (2)
US 12,247,639 US 12,698,820