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rubber composition

A rubber composition, rubber technology, applied in the direction of transportation and packaging, special tires, tire parts, etc., can solve the problems of low affinity, increased cohesion, insufficient effect, etc., to achieve excellent wear resistance, improve tensile properties and The effect of viscoelastic properties

Active Publication Date: 2022-08-02
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, silica on a hydrophilic surface has a low affinity to rubber components and increased aggregation between silicas compared to carbon black on a hydrophobic surface, therefore, a separate silane coupling agent is required to improve dispersion sex or make silica-rubber coupling
Therefore, a method of introducing a functional group having affinity or reactivity with silica at the end of the rubber molecule has been carried out, but its effect is not sufficient

Method used

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Examples

Experimental program
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Effect test

Embodiment 1

[0092] 63 parts by weight of solution polymerized styrene-butadiene rubber at both ends (styrene content is 39 weight %, vinyl content is 25 weight %, extender oil content is 5 weight %) (MF3925, LG Chem.), 40 parts by weight of rare earth catalyzed butadiene rubber (cis bond content of 96% by weight), 70 parts by weight of silica, 5.6 parts by weight of coupling agent, 27.0 parts by weight of processing oil, 3 Parts by weight of zinc oxide and 1 part by weight of stearic acid were mixed to prepare a first compounded product, and 1.5 parts by weight of sulfur powder and 2.8 parts by weight of a vulcanization accelerator were mixed therewith to prepare a rubber composition. In this case, the solubility parameter difference (Δ) between solution polymerized two-end modified styrene-butadiene rubber and rare earth catalyzed butadiene rubber was 0.89 (solution polymerized two-end modified styrene-butadiene rubber). Solubility parameter of styrene-butadiene rubber = 18.06, solubilit...

Embodiment 2

[0094] 63 parts by weight of solution polymerized styrene-butadiene rubber at both ends (styrene content is 43 weight %, vinyl content is 25 weight %, extender oil content is 5 weight %) (MF4325, LG Chem.), 40 parts by weight of rare earth catalyzed butadiene rubber (cis bond content of 96% by weight), 70 parts by weight of silica, 5.6 parts by weight of coupling agent, 27.0 parts by weight of processing oil, 3 Parts by weight of zinc oxide and 1 part by weight of stearic acid were mixed to prepare a first compounded product, and 1.5 parts by weight of sulfur powder and 2.8 parts by weight of a vulcanization accelerator were mixed therewith to prepare a rubber composition. In this case, the solubility parameter difference (Δ) between solution polymerized two-end modified styrene-butadiene rubber and rare earth catalyzed butadiene rubber is 1.00 (solution polymerized two-end modified styrene-butadiene rubber Solubility parameter of styrene-butadiene rubber = 18.17, solubility p...

Embodiment 3

[0096] 84 parts by weight of solution polymerized styrene-butadiene rubber at both ends (styrene content is 39 weight %, vinyl content is 25 weight %, extender oil content is 5 weight %) (MF3925, LG Chem.), 20 parts by weight of rare earth catalyzed butadiene rubber (cis bond content of 96% by weight), 100 parts by weight of silica, 8.0 parts by weight of coupling agent, 36.0 parts by weight of processing oil, 3 Parts by weight of zinc oxide and 1 part by weight of stearic acid were mixed to prepare a first compounded product, and 1.5 parts by weight of sulfur powder and 2.8 parts by weight of a vulcanization accelerator were mixed therewith to prepare a rubber composition. In this case, the solubility parameter difference (Δ) between solution polymerized two-end modified styrene-butadiene rubber and rare earth catalyzed butadiene rubber was 0.89 (solution polymerized two-end modified styrene-butadiene rubber). Solubility parameter of styrene-butadiene rubber = 18.06, solubili...

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Abstract

The present invention relates to a rubber composition having excellent abrasion resistance and improved tensile and viscoelastic properties by controlling the compatibility between rubber components, and a tire manufactured using the rubber composition.

Description

technical field [0001] [Cross-reference to related applications] [0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2017-0015163 filed on February 7, 2018, the entire contents of which are incorporated herein by reference. [Technical field] [0003] The present invention relates to a rubber composition having excellent abrasion resistance and improved tensile and viscoelastic properties by controlling the compatibility between rubber components, and a tire manufactured using the rubber composition. Background technique [0004] Recently, according to the demand for automobiles with a low fuel consumption rate, the rolling resistance of tires is required to be reduced, and there is a demand for a tire having modulation stability represented by wet skid resistance and excellent wear resistance and tensile properties in terms of safety. tire. [0005] For example, in order to reduce the rolling resistance of tires, there is a ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L9/00C08L9/06C08K3/36B60C1/00
CPCC08K3/36C08L9/00B60C1/00C08L9/06C08C19/22C08C19/25C08F2/04C08F136/06C08F2810/40C08K3/06C08L2205/02
Inventor 罗六烈崔在宣金镇英金鲁马
Owner LG CHEM LTD
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