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A kind of c9 thermal polymer resin and its preparation process with controllable molecular weight and softening point

A thermal polymer resin and preparation technology, which is applied in the field of petroleum resin preparation, can solve the problems of difficult petroleum resin molecular weight regulation and complicated operation, and achieve the effect of ensuring comprehensive performance, simple preparation process, and easy operation

Active Publication Date: 2020-11-20
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

The application controls the softening point and chroma of the modified C9 petroleum resin by adjusting the amount of butyl acrylate, irradiation dose, and irradiation time. The operation is relatively complicated, and it is difficult to effectively regulate the molecular weight of the obtained petroleum resin.

Method used

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  • A kind of c9 thermal polymer resin and its preparation process with controllable molecular weight and softening point

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Weigh 200g of deweighted C9 raw materials, 10g of dicyclopentadiene, 5g of methyldicyclopentadiene, 5g of styrene and styrene derivatives and dissolve them in 100g of solvent oil; then add the reaction materials to the thermal polymerization reactor Neutralize and stir evenly, under the protection of nitrogen atmosphere and under normal pressure, control the polymerization reaction temperature to 260°C, and the reaction time to 12h. After the reaction is completed, the polymerized reaction product is stripped to recover mineral spirits to obtain C9 thermal polymerized petroleum resin . The measured molecular weight Mz of the resin is 1100, and the softening point is 115°C. The deweighted C9 raw material in this example mainly contains the following components: 8% of styrene and its derivatives, 12% of methylstyrene and its derivatives, 16% of dicyclopentadiene, 13% of indene and its derivatives, 10% dicyclopentadiene, 25% of various alkanes below C9.

Embodiment 2

[0034] Weigh out 150g of C9 raw materials, 5g of dicyclopentadiene, 5g of methyldicyclopentadiene, 5g of styrene and styrene derivatives and dissolve them in 150g of solvent oil; then add the reaction materials to the thermal polymerization reactor Neutralize and stir evenly, under the protection of nitrogen atmosphere and under normal pressure, control the polymerization reaction temperature to 250℃, and control the reaction time to 15h. After the reaction is completed, the polymerized reaction product is stripped to recover mineral spirits to obtain C9 thermal polymerized petroleum resin . The measured molecular weight Mz of the resin is 1000, and the softening point is 103°C. The deweighted C9 raw material in this example mainly contains the following components: styrene and its derivatives 10%, methyl styrene and its derivatives 2%, dicyclopentadiene 14%, indene and its derivatives 12%, formaldehyde Dicyclopentadiene is 7%, and all kinds of alkanes below C9 are 30%.

Embodiment 3

[0036] Weigh 250g of deweighted C9 raw materials, 5g of dicyclopentadiene, 2g of methyldicyclopentadiene, 2g of styrene and styrene derivatives and dissolve them in 100g of solvent oil; then add the reaction materials to the thermal polymerization reactor Neutralize and stir uniformly, under nitrogen atmosphere protection and normal pressure, control the polymerization reaction temperature to 240℃, and the reaction time to 16h. After the reaction is over, the polymerized reaction product is stripped to recover mineral spirits to obtain C9 thermal polymerized petroleum resin . The measured molecular weight Mz of the resin is 1250, and the softening point is 126°C. In this embodiment, the deweighted C9 raw material mainly contains the following components: 9% of styrene and its derivatives, 15% of methylstyrene and its derivatives, 20% of dicyclopentadiene, 8% of indene and its derivatives, 10% dicyclopentadiene, 30% of various alkanes below C9.

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Abstract

The invention discloses a C9 thermally polymerized resin, and a preparation method of the C9 thermally polymerized resin capable of controlling the molecular weight and the softening point, and belongs to the technical field of petroleum resin preparation. According to the preparation method, a heavy fraction removing C9 raw material, dicyclopentadiene, methyl dicyclopentadiene, styrene, and a styrene derivative as main raw materials at a mass ratio of (50-250) : (1-20) : (1-15) : (1-10), thermal polymerization is adopted to prepare the C9 thermally polymerized resin. The preparation method iscapable of realizing free regulating and controlling of the molecular weight and the softening point of the C9 thermally polymerized resin in a certain range through adjusting the ratio of the raw materials.

Description

Technical field [0001] The invention belongs to the technical field of petroleum resin preparation, and particularly relates to a preparation process for regulating the molecular weight and softening point of C9 thermopolymer resin by adjusting the content of each material component in the reaction material. Background technique [0002] C9 petroleum resin is the main raw material of C9 fraction, which is the by-product of the cracking ethylene plant, polymerized in the presence of a catalyst, or copolymerized with aldehydes, aromatics, and terpene compounds. The molecular weight of C9 petroleum resin is generally less than 2000, and its softening point is less than 150°C. It is a thermoplastic viscous liquid or solid. Because of its low softening point and relatively small molecular weight, it is generally not used as a material alone. Since the structure of C9 petroleum resin does not contain polar groups, it has good water resistance, acid and alkali resistance, weather resis...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F240/00C08F232/08C08F212/08C08F212/00
CPCC08F240/00C08F232/08C08F212/08C08F212/00
Inventor 郭书成张素芳程露露章勇李昝牛凯
Owner 安徽同心新材料科技有限公司
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