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C9 petroleum resin modified by rosin and its preparation method and application

A technology of rosin modification and petroleum resin, applied in the field of chemistry, can solve problems such as performance index decline, and achieve the effects of improving wet grip, increasing glass transition temperature, and increasing rigidity

Active Publication Date: 2019-09-13
RACHEM CHINA CO LTD +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The indicators to measure these three performances are mainly grip, rolling resistance, and wear, but improving one performance indicator will often lead to a decline in other performance indicators, which is the so-called tire devil's triangle.

Method used

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  • C9 petroleum resin modified by rosin and its preparation method and application
  • C9 petroleum resin modified by rosin and its preparation method and application
  • C9 petroleum resin modified by rosin and its preparation method and application

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0041] Put 30 parts of toluene and 2 parts of aluminum trichloride catalyst into the reactor, vent the water out of the system with nitrogen, and add dropwise a mixture of 10 parts of toluene, 60 parts of styrene and 30 parts of rosin. The time of dripping is 1h. After the addition was completed, the temperature of the reaction was maintained at 40°C, and 20 parts of 10% sodium hydroxide solution was added dropwise after the reaction for 2 hours. Stop stirring, remove the upper layer of liquid and wash with water after layering, until the pH of the lower layer of Qingye is between 6-8, distill the upper layer of liquid and vacuum distillation to remove excess solvent, and finally get 70 parts of yellow resin, the softening point of the resin is at 91°C. The rosin has an iodine value of 180.

Embodiment 2-9

[0043] Table-1 shows the raw material ratio of the rosin-modified C9 petroleum resin prepared in Preparation Example 2-9 and the softening point of the prepared resin. The operation steps are the same as in Example 1.

[0044] Table 1

[0045]

Embodiment 10

[0047] The solvent in Example 1 was replaced with 60 parts, and the rest remained unchanged. Finally, 65 parts of resin was obtained with a softening point of 91°C.

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Abstract

The invention discloses a preparation method of rosin modified C9 petroleum resin shown as a formula (I), a formula (II) and a formula (III). By using a cold polymerization method, in a solvent, C9 raw materials and rosin are used as raw materials; catalysts are added for reaction; after the reaction, termination agents are added; the rosin modified C9 petroleum resin shown as the formula (I), theformula (II) and the formula (III) are prepared. The prepared rosin modified C9 petroleum resin has the effects of improving the tire tread anti-tearing performance and intensity; meanwhile, the wetslippage resistance performance of the tire tread can be improved.

Description

Technical field [0001] The invention belongs to the field of chemistry and relates to a C9 petroleum resin, in particular to a method and application of a C9 petroleum resin modified by rosin. Background technique [0002] With the development of economy and the progress of society, people have higher and higher requirements for the safety, fuel saving and durability of tires. The indicators to measure these three performances are mainly grip, rolling resistance, and abrasion, but increasing one performance indicator often leads to a decline in other performance indicators, the so-called tire devil's triangle. It is known that styrene butadiene rubber and carbon black can be replaced by solution polymerized styrene butadiene rubber and carbon black to simultaneously improve grip and reduce rolling resistance. Solution polymerized styrene butadiene rubber and silica are the basic materials for realizing green tires. Usually the dynamic mechanical analysis data loss factor Tanδ is...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08L7/00C08L91/00C08L91/06C08L51/00C08K13/02C08K3/04C08K5/09C08K3/22C08K3/06C08F289/00C08F4/14C08F4/16C08F2/38
Inventor 张坤董栋
Owner RACHEM CHINA CO LTD
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