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Rubber composition

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

Active Publication Date: 2020-03-06
LG CHEM LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, compared with carbon black on the hydrophobic surface, the silica on the hydrophilic surface has a low affinity to the rubber component and the aggregation between the silicas increases, therefore, a separate silane coupling agent is required to improve the dispersibility or Coupling silica-rubber
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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  • Rubber composition
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Examples

Experimental program
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Effect test

Embodiment 1

[0112] 63 parts by weight of solution-polymerized both-terminal-modified styrene-butadiene rubber (39 wt% styrene content, 25 wt% vinyl content, 5 wt% extender oil content) (MF3925, LG Chem.) (60 parts by weight of rubber components, 3 parts by weight of oil), 42 parts by weight of one-end modified lithium-catalyzed butadiene rubber (vinyl content of 10% by weight, extender oil content of 5 % by weight), (LG F0010, LG Chem.) (rubber component of 40 parts by weight, oil of 2 parts by weight), silicon dioxide of 70 parts by weight, coupling agent of 5.6 parts by weight, processing oil of 25.0 parts by weight , 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 (Δδ) between the solution-polymerized two-terminal modif...

Embodiment 2

[0114] 63 parts by weight of solution-polymerized both-terminal-modified styrene-butadiene rubber (43 wt% styrene content, 25 wt% vinyl content, 5 wt% extender oil content) (MF4325, LG Chem.) (60 parts by weight of rubber components, 3 parts by weight of oil), 42 parts by weight of one-end modified lithium-catalyzed butadiene rubber (vinyl content of 10% by weight, extender oil content of 5 % by weight) (LG F0010, LG Chem.) (rubber component of 40 parts by weight, oil of 2 parts by weight), silicon dioxide of 70 parts by weight, coupling agent of 5.6 parts by weight, processing oil of 25.0 parts by weight, 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 (Δδ) between the solution-polymerized two-terminal modifie...

Embodiment 3

[0116] 78.8 parts by weight of solution-polymerized both-terminal-modified styrene-butadiene rubber (39 wt% styrene content, 25 wt% vinyl content, 5 wt% extender oil content) (MF3925, LG Chem.) (75 parts by weight of rubber components, 3.8 parts by weight of oil), 26.3 parts by weight of one-end modified lithium-catalyzed butadiene rubber (vinyl content of 10% by weight, extender oil content of 5 % by weight) (LG F0010, LG Chem.) (rubber component of 25 parts by weight, oil of 1.3 parts by weight), silicon dioxide of 90 parts by weight, coupling agent of 7.2 parts by weight, processing oil of 34.9 parts by weight, 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 (Δδ) between the solution-polymerized two-terminal...

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Abstract

The present invention relates to a rubber composition in which the compatibility between rubber components is adjusted, thereby enabling enhanced wear resistance as well as enhanced tensile propertiesand viscoelastic properties, and a tire manufactured by using same.

Description

technical field [0001] [Cross Reference to Related Application] [0002] This application claims the benefit of priority based on Korean Patent Application No. 10-2018-0056729 filed on May 17, 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 properties and viscoelastic properties by controlling the compatibility between rubber components, and a tire manufactured using the rubber composition. Background technique [0004] Recently, in accordance with the demand for automobiles with low fuel consumption, tires are required to be reduced in rolling resistance, and have modulation stability represented by wet skid resistance and excellent wear resistance and tensile properties in terms of safety. tire. Therefore, there is known a method of making low rolling resistance and modulation stability coexist by combining ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08L9/00C08L9/06C08F2/04C08F4/48C08K3/04C08K3/36B60C1/00
CPCB60C1/00C08F2/04C08F4/48C08K3/04C08K3/36C08L9/00C08L9/06C08C19/22C08C19/25Y02T10/86C08K3/013C08F236/06C08F236/08C08F236/10C08F2810/40C08K5/0025C08K5/47C08L25/10C08L2205/025
Inventor 罗六烈崔在宣金鲁马金镇英金唯真全在彣
Owner LG CHEM LTD
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