Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Rubber composition and vibration damper using the rubber composition

A rubber vibration damping and composition technology, which is applied in the field of crankshaft dampers and damping components, can solve the problem of not proposing elastomer EPDM mixing, etc.

Inactive Publication Date: 2007-05-02
THE GATES CORP
View PDF5 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0008] It is not surprising that the art has not suggested mixing PIB or IIR with peroxide cured elastomers such as EPDM

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Rubber composition and vibration damper using the rubber composition
  • Rubber composition and vibration damper using the rubber composition
  • Rubber composition and vibration damper using the rubber composition

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 11

[0039] Example 11 The increase in tan δ is not as great as Example 10. This may be due to the higher mole percent unsaturation of butyl 268 compared to butyl 077. With higher unsaturation, butyl 268 can participate in more cross-linking reactions leading to less damping. For whatever reason, butyl levels of less than 1 mole percent unsaturation have a more pronounced effect on tan delta than levels of greater than 1 mole percent unsaturation according to embodiments of the invention.

[0040] Compounding ingredients

supplier

Phr

EPDM Keltan 7441A

Zinc oxide

Zinc stearate

Triethanolamine 99%

Vulcanox HS 1

N472 carbon black

Paraffin oil or BP

Saret 634 2

HVA-2 3

Varox 231XL 4

Varox130XL 5

DSM

many

many

many

Bayer AG

Columbian

See Table 2

Sartomer

DuPont-Dow

R. T. Vanderbilt

R. T. Vanderbilt

175

5

1.5

0.6

1.5

90 ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
degree of unsaturationaaaaaaaaaa
degree of unsaturationaaaaaaaaaa
viscosity average molecular weightaaaaaaaaaa
Login to View More

Abstract

A torsional vibration damper or other vibration damping device with a rubber vibration absorbing element. The rubber element is a peroxide-cured composition comprising 100 parts of ethylene-alpha-olefin elastomer, and 20 to 100 parts of substantially isobutylene or butene polymer having a viscosity average molecular weight greater than about 5000. The polymer may also be a copolymer of isobutylene and isoprene. The addition of the isobutylene polymer to the ethylene-alpha-olefin elastomer composition increases the vibration damping character of the rubber.

Description

Background of the invention [0001] The present invention relates to an ethylene-alpha-olefin rubber composition having improved damping properties which can also be molded, bonded to metal and used as a torsional vibration damper, engine mount or other vibration control device Damping elements. The present invention also relates to a crankshaft damper for absorbing torsional and bending vibrations using an improved rubber composition as a damping element. US Patent No. 6,386,065, incorporated herein by reference, discloses an example of a torsional vibration damper to which the main invention is applied. Additional examples of crankshaft dampers and examples of rubber compositions for use in dampers to which the present invention may be applied are disclosed in Publication No. US2002 / 0162627, which is hereby incorporated by reference. [0002] Rubber compositions are widely used in various vibration control devices. Diene elastomers such as NR, BR, SBR, IIR, CR and NBR have...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): F16F15/126F16F1/36C08L23/16B32B1/08
CPCC08L23/16F16L11/081C08L23/22F16F15/126F16L11/085B32B25/14B32B1/08F16L11/26Y10T428/2804Y10T428/2852Y10T428/139Y10T428/31522C08L2666/06C08L23/00C08L2205/02B32B2597/00B32B2307/56B32B2605/00
Inventor P·N·邓拉普B·E·索思
Owner THE GATES CORP
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com