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C5 petroleum resin product and preparation method thereof with controllable molecular weight

A petroleum resin and molecular weight technology, which is applied to the preparation field of C5 petroleum resin products and their molecular weight controllable, can solve the problems of narrow molecular weight adjustment range and difficulty in meeting usage requirements, and achieve the effects of simple method, good quality and cost saving.

Pending Publication Date: 2019-01-29
安徽同心新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

For example, the Chinese patent application No. 2009100226153 uses mixed monoolefins as molecular weight regulators to regulate the molecular weight of polydicyclopentadiene petroleum resins, but uses monoolefin molecular weight regulators to adjust the molecular weight range of the obtained petroleum resin products. Relatively narrow, it is difficult to meet the needs of various fields

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] A method for preparing C5 petroleum resin with controllable molecular weight of the present invention comprises the following steps: by adjusting the content range of the active monoolefin component in the production formula to 50%; the content of the active diolefin component is 10%, and controlling the addition of the catalyst 0.35%, reaction polymerization stirring speed control 150rpm, polymerization reaction temperature is 80 ℃, polymerization reaction residence time is 150min, after finishing, in the resin polymerization liquid that the reaction gained, add the polyoxyethylene polyoxypropylene alcohol ether that concentration is 500ppm as Demulsifier, the catalyst is removed at a stirring speed of 180rpm, and then the polymer solution obtained after the catalyst removal is added to the flashing and stripping device to extract solvent oil and oligomers, and finally the Z-average molecular weight of C5 petroleum resin can be obtained It is a C5 petroleum resin produc...

Embodiment 2

[0030]A method for preparing C5 petroleum resin with controllable molecular weight of the present invention comprises the following steps: by adjusting the content range of the active monoolefin component in the production formula to 10%; the content of the active diolefin component to 50%, controlling the amount of catalyst added At 0.35%, the reaction polymerization stirring speed is controlled at 250rpm, the polymerization temperature is 80°C, and the polymerization residence time is 150min. Demulsifier, the catalyst is removed at a stirring speed of 300rpm, and then the polymer solution obtained after the catalyst removal is added to the flashing and stripping device to extract solvent oil and oligomers, and finally the Z-average molecular weight of C5 petroleum resin can be obtained It is a C5 petroleum resin product with a softening point of 101°C and a temperature of 10,000.

Embodiment 3

[0032] A kind of C5 petroleum resin molecular weight controllable preparation method of the present invention comprises the following steps: by adjusting 2-methyl-1-butene, 2-methyl-2-butene and The total content of cyclopentene is 10%; the total content of trans-1,3-pentadiene, cis-1,3-pentadiene, cyclopentadiene and dicyclopentadiene in the active diene component is 50% %, the control catalyst addition is at 0.35%, the reaction polymerization stirring speed is controlled at 150rpm, the polymerization reaction temperature is 50°C, and the polymerization reaction residence time is 200min. The catalyst is removed at a stirring speed of 50rpm, and then the polymer solution obtained after the catalyst removal is added to a flash evaporation and stripping device to extract solvent oil and oligomers, and finally a C5 petroleum resin with a Z-average molecular weight of 15000 can be obtained. A C5 petroleum resin product with a softening point of 105°C.

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Abstract

The invention discloses a C5 petroleum resin product and a preparation method thereof with controllable molecular weight, and belongs to the technical field of petroleum resin preparation. According to the preparation method of the C5 petroleum resin with controllable molecular weight, a C5 fraction obtained from ethylene cracking is used as a main raw material, the content of active monoolefin components in the C5 fraction is adjusted to be in a range of 10%-90%, the content of active diolefin components is adjusted to be in a range of 2-70%, and then the C5 petroleum resin is prepared through a cationic catalytic polymerization reaction, wherein the catalytic polymerization temperature is 30-80 DEG C, the polymerization reaction residence time is 50-300 minutes, the stirring speed of thereaction polymerization is controlled to be in a range of 50-350 rpm, and the addition amount of a catalyst is 0.25-0.85%. Through the adoption of the technical scheme provided by the invention, themolecular weight of the C5 petroleum resin product can be effectively regulated and controlled, the regulating and controlling range is large, and therefore application requirements of different fields and customers can be met.

Description

technical field [0001] The invention belongs to the technical field of petroleum resin preparation, in particular to a C5 petroleum resin product and a preparation method with controllable molecular weight thereof. Background technique [0002] C5 petroleum resin is a kind of thermoplastic resin polymerized from C5 distillate, a by-product of ethylene cracking process, as the main raw material. C5 petroleum resin has good viscosity increasing, heat resistance, stability, water resistance, acid and alkali resistance, its viscosity increasing effect is generally better than C9 resin, and phenolic resin, terpene resin, coumarone resin, natural rubber , synthetic rubber and other good compatibility, especially good compatibility with styrene-butadiene rubber (SBR). At present, C5 petroleum resin has been gradually developed due to its high peel bonding strength, good fast tack, stable bonding performance, moderate melt viscosity, good heat resistance, good compatibility with po...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00C08F2/00
CPCC08F2/00C08F240/00
Inventor 李昝郭书成张素芳
Owner 安徽同心新材料科技有限公司
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