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

Thermoplastic elastomers exhibiting superior abrasion resistance properties

A technology of thermoplastic elastomers and elastomers, applied in the field of thermoplastic polyester elastomers, can solve the problems of TPE lack of wear resistance

Inactive Publication Date: 2011-05-18
POLYONE CORP
View PDF4 Cites 2 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, for some demanding applications such as high-end tools, TPE lacks wear resistance

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
  • Thermoplastic elastomers exhibiting superior abrasion resistance properties
  • Thermoplastic elastomers exhibiting superior abrasion resistance properties
  • Thermoplastic elastomers exhibiting superior abrasion resistance properties

Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0036] The preparation of the compounds according to the invention is uncomplicated. The compounds of the present invention can be prepared in batch or continuous operation.

[0037] Compounding in a continuous process typically occurs in an extruder that is brought to a temperature high enough to melt the polymer matrix and add solid ingredient additives either at the head of the extruder or downstream of the extruder. The temperature is above the melting temperature of the thermoplastic elastomer to allow good dispersion of all ingredients into the blend, typically above 210°C. The speed of the extruder can be in the range of about 50-500 revolutions per minute (rpm), preferably about 400 rpm. Typically, the output of the extruder is pelletized for subsequent extrusion or molding into polymeric articles.

[0038] The mixing in the batch process is usually carried out in a Banbury mixer which is also brought to a temperature high enough to melt the polymer matrix to allow t...

Embodiment

[0045] Table 2 shows four examples of the present invention and compared with the control case (comparative example A).

[0046] All formulations of Examples 1-4 and Comparative Example A contained similar weight percent ingredients, except that Comparative Example A used polystyrene, which is commonly used in thermoplastic elastomers, and Examples 1-4 used high-styrene styrene Ethylene block copolymers.

[0047]

[0048] Examples 1-4 and A were all prepared using a twin screw extruder with all zones set at 216°C (420°F) at 400 rpm. All ingredients were added before Zone 1. The melt-mixed compound is pelletized for further processing.

[0049] All pellets of Examples 1-4 and A were molded into tensile test bars using an injection molding machine from Demag, at a temperature of 230° C. and under high pressure.

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
elongationaaaaaaaaaa
elongationaaaaaaaaaa
Login to View More

Abstract

A blend of thermoplastic polyester elastomer, hydrogenated styrenic block copolymer, and high styrene content styrenic block copolymer is disclosed which has good processability and more effective abrasion resistance than the blend using polystyrene in place of the high styrene content styrenic block copolymer.

Description

[0001] priority [0002] This application claims priority to US Provisional Patent Application No. 61 / 073310, docket number 12008016, filed June 17, 2008, the contents of which are incorporated herein by reference. technical field [0003] The present invention relates to thermoplastic polyester elastomers comprising styrenic block copolymers for excellent abrasion resistance. Background technique [0004] The field of polymers developed rapidly, advancing materials science from wood and metals in the 19th century to the use of thermoset polymers in the mid-20th century and then to thermoplastic polymers in the late 20th century. [0005] Thermoplastic elastomers (TPE) combine the advantages of high elasticity of thermosetting polymers such as vulcanized rubber with the high processability of thermoplastic polymers. Therefore, TPEs are preferred materials because they can be made into articles by injection molding equipment. However, for some demanding applications such as...

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): C08L25/08C08L67/00C08L91/00C08K3/00C08K5/00
CPCC08L53/025C08K5/0008C08L53/02C08K5/0016C08L67/025C08K3/0033C08L2205/03C08L91/00C08K3/013C08L2666/02C08L2666/24C08L53/00
Inventor G·钱K·文卡塔斯瓦米
Owner POLYONE 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