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Rosin modified C9 petroleum resin as well as preparation method and application thereof

A technology of rosin modification and petroleum resin, which is applied in the chemical field, can solve the problems such as the decline of performance indicators, and achieve the effects of improving wet grip, increasing branched structure, and increasing glass transition temperature

Active Publication Date: 2018-06-29
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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  • Rosin modified C9 petroleum resin as well as preparation method and application thereof
  • Rosin modified C9 petroleum resin as well as preparation method and application thereof
  • Rosin modified C9 petroleum resin as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

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

Embodiment 2-9

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

[0044] Table 1

[0045]

Embodiment 10

[0047] The solvent in Example 1 was replaced by 60 parts, and the rest remained unchanged, finally obtaining 65 parts of resin 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 the economy and the progress of society, people have higher and higher requirements for the safety, fuel economy and durability of tires. 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. It is known that solution-polymerized styrene-butadiene rubber and white carbon black can be used instead of emulsion-polystyrene-butadiene-butadiene rubber and carbon black to simultaneously improve grip and reduce rolling resistance. Solution-polymerized styrene-butadiene rubber and white carbon black are the basic materials for realizing green tires. D...

Claims

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Application Information

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Patent Type & Authority Applications(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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