a change c 9 Preparation method of petroleum resin molecular polarity

A petroleum resin and molecular technology, which is applied in the field of preparation of changing the molecular polarity of C9 petroleum resin, can solve the problems of poor rubber compatibility, low activation energy of diolefins, and large resin polarity, and achieves weak polarity, waxy wax, etc. The effect of low fog point and small molecular weight

Active Publication Date: 2022-05-17
FUSHUN QILONG CHEM
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Problems solved by technology

[0003] Currently, C 9 Petroleum resin polymerization is mainly through the addition of refined isoprene, crude isoprene, piperylene, etc. 5 Diolefins can be used to change the softening point, viscosity, wax mist point, molecular weight and other indicators of the resin, but the disadvantage of this method is that diolefins need to be added. Since the activation energy of diolefins is low and it is easy to participate in the reaction, the softening point is reduced more, but Large molecular weight, high resin polarity, low viscosity, poor compatibility with rubber such as EVA28

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  • a change c <sub>9</sub> Preparation method of petroleum resin molecular polarity
  • a change c <sub>9</sub> Preparation method of petroleum resin molecular polarity

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[0022] The preferred embodiments of the present invention are described in detail below, so that the advantages and features of the present invention can be more easily understood by those skilled in the art, so as to define the protection scope of the present invention more clearly.

[0023] a change C 9 The preparation method of petroleum resin molecular polarity is carried out according to the following steps:

[0024] (1) Separating the methylindene enriched liquid from ethylene tar;

[0025] (2) Formindene enriched solution, α-olefin, unpolymerized C 9 Dehydrate after mixing, add BF 3 As a catalyst, a polymerization reaction occurs, the polymerization reaction temperature is 20-25°C, and the reaction time is 2-4h;

[0026] (3) After the polymerization reaction is over, remove the catalyst BF 3 ;

[0027] (4) Removal of the solvent gives C 9 petroleum resin.

[0028] Among them, methylindene enriched solution, α-olefin, unpolymerized C 9 The mass ratio is 60:(3~9):...

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Abstract

The present invention relates to a change C 9 The preparation method of petroleum resin molecular polarity, methylindene enriched solution, α-olefin, unpolymerized C 9 Dehydrate after mixing, add BF 3 As a catalyst, a polymerization reaction occurs, the polymerization reaction temperature is 20-25°C, and the reaction time is 2-4h; after the polymerization reaction is completed, the catalyst BF is removed 3 ; Removal of the solvent gave C 9 petroleum resin. The present invention adopts α-olefin to change the structural polarity in the resin, and the obtained C 9 Petroleum resin, small molecular weight, light color, low wax fog point, weak polarity, good miscibility with EVA28 rubber.

Description

technical field [0001] The invention belongs to the technical field of petroleum resin production, in particular to a method of changing C 9 Preparation method of petroleum resin molecular polarity. Background technique [0002] The carbon nine product is ethylene by-product C 9 Distillation is the medium and low molecular weight polymer obtained by raw material polymerization, and its production raw material cracking C 9 Distillate oil accounts for about 10-20% of ethylene production. The distillate has complex components and is rich in unsaturated hydrocarbons such as styrene, methylstyrene, dicyclopentadiene, indene, methylcyclopentadiene dimer, etc. [0003] Currently, C 9 Petroleum resin polymerization is mainly through the addition of refined isoprene, crude isoprene, piperylene, etc. 5 Diolefins can be used to change the softening point, viscosity, wax mist point, molecular weight and other indicators of the resin, but the disadvantage of this method is that diol...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F240/00C09J157/02C09J123/08
CPCC08F240/00C09J157/02C09J123/0853Y02T10/86
Inventor 尹维宇于得水
Owner FUSHUN QILONG CHEM
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