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

rubber compound

A rubber compound, rubber technology, used in transportation and packaging, thin material handling, etc., can solve problems such as high hysteresis loss and poor dynamic behavior

Active Publication Date: 2016-06-22
EVONIK OPERATIONS GMBH
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0006] A known drawback of organo(alkyl polyether silane)-containing rubber compounds is their poor dynamic behavior, including high hysteresis losses

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 compound
  • rubber compound
  • rubber compound

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0131] Example 1: Rubber Mixture

[0132] The main mixing specification (Main mixing specification) for the rubber mixture is listed in Table 1 below. The unit of phr used here is part by weight, based on 100 parts of crude rubber used.

[0133] A general method of producing rubber compounds and their vulcanizates is described in the "Rubber Technology Handbook", W. Hofmann, Hanser Verlag 1994.

[0134] Table 1: Main mixing methods

[0135]

[0136] polymer EPG5455 is an ethylene propylene diene rubber with medium degree of unsaturation (ENB content=4,3) containing 50 phr paraffin oil from Lanxess. Its Mooney viscosity (Mooney viscosity) (UML (1+4) 125° C.) is 46.

[0137] 7000GR is highly disperse silica from EvonikDegussa GmbH with a BET surface area of ​​170m 2 / g.

[0138] Lipoxol 4000 from Sasol is polyethylene glycol 4000, Sunpar 150 from Holly Corporation is paraffin oil, VulkacitMercaptoC from Lanxess is 2-mercaptobenzothiazole (MBT), PerkacitTBzTD (tetrabe...

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
specific surface areaaaaaaaaaaa
Login to View More

Abstract

The present invention relates to a rubber mixture comprising: (A) at least one rubber selected from the group consisting of ethylene-propylene-diene copolymer (EPDM), ethylene-propylene copolymer (EPM), neoprene (CR), Chlorinated polyethylene (CM), chloro-isobutylene-isoprene (chlorobutyl) rubber (CIIR), chlorosulfonylated polyethylene (CSM), ethylene-vinyl acetate copolymer (EAM), acrylic alkanes Base ester copolymer (ACM), polyester polyurethane (AU), polyether polyurethane (EU), bromo-isobutylene-isoprene (bromobutyl) rubber (BIIR), polychlorotrifluoroethylene (CFM ), isobutylene-isoprene rubber (butyl rubber, IIR), isobutylene rubber (IM), polyisoprene (IR), thermoplastic polyester polyurethane (YAU), thermoplastic polyether polyurethane (YEU), Silicone rubber (MQ), hydrogenated nitrile rubber (HNBR), nitrile rubber (NBR) or carboxylated nitrile rubber (XNBR) with methyl groups in the polymer chain, (B) at least one oxide filler, and (C) At least one silicon-containing azodicarbonamide having the structure of formula I: (R1)3-a(R2)aSi-RI-NH-C(O)-N=N-C(O)-NH-RI-Si( R1)3-a(R2)a(I). The rubber mixture is prepared by mixing at least one rubber, at least one oxide filler and at least one silicon-containing azodicarbonamide having the structure of formula I. The mixture can be used for shaped products.

Description

technical field [0001] The present invention relates to rubber mixtures, their preparation and use. Background technique [0002] DE102010003387.1 discloses the 3 -X 1 -C(O)-N=N-C(O)-X 1 -R 4 and (R 1 ) 3-a (R 2 ) a Si-R I -NH 2 A method for preparing silicon-containing azodicarbonamide by reaction. [0003] DE2704506 discloses the structure Y-X-CO-N=N-CO-X 1 - Compounds of Z and their use in rubber substances containing fillers. [0004] US20090234066A1 further discloses a compound with the structure A-CO-N=N-CO-Z-G, which is used in isoprene rubber together with sulfur-containing silane. [0005] US20090186961 discloses substances having the structure A-CO-N=N-CO-Z-G for use in isoprene rubber together with coating agents. [0006] A disadvantage of known organo(alkyl polyether silane)-containing rubber mixtures is their poor dynamic behavior, including high hysteresis losses. Contents of the invention [0007] It is an object of the present invention to pr...

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 Patents(China)
IPC IPC(8): C08L23/16C08K13/02C08K5/5455C08K13/06C08K9/12
CPCC08K5/544C08K5/5455Y10T428/1352C08K3/36C08L21/00C08L23/16C08K5/54C08K5/40C08K5/47C08J3/20C08L9/00
Inventor A·布卢默O·克洛克曼D·克勒霍夫
Owner EVONIK OPERATIONS GMBH
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