A kind of production method of low odor coumarone resin

A technology of coumarone resin and production method, which is applied in the production of coumarone resin, the preparation of coumarone resin, and the preparation of low-odor coumarone resin, and can solve problems such as product environmental protection

Active Publication Date: 2020-07-28
BAOWU CHARCOAL MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The coumarone resin products produced by the current process also contain a large number of odor sources, such as residual solvent oil or oligomer resin, which brings environmental problems to the subsequent use of the product

Method used

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  • A kind of production method of low odor coumarone resin
  • A kind of production method of low odor coumarone resin

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Experimental program
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Embodiment Construction

[0024] The key procedure of the method provided by the invention is: first the raw material (crude indene) is distilled, and the polymerizable components in the raw material (polymerizable components refer to active components that can be polymerized such as indene, methyl indene, styrene, etc.) , coumarone and other aromatics or olefins containing double bonds) for enrichment, while controlling the naphthalene content to less than 3%. Second: sweetening system; the sweetening tower is filled with activated carbon or molecular sieve, which can remove mercaptans, etc.; third, molecular distillation removes residual solvents of coumarone resin and oligomer resin.

[0025] The detailed technical plan includes the following steps:

[0026] 1) Raw material distillation: the raw material is cut through a distillation tower to obtain a fraction with a boiling point of 135-195° C. to obtain the crude coumarone fraction RCSN. Light and heavy oils are removed while enriching aggregatea...

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Abstract

The invention discloses a production method of low-odor coumarone resin. Raw material composition change, a decolorization method and a product aftertreatment process are performed on the basis of a traditional production process of coumarone resin. The method comprises main steps as follows: raw materials are subjected to distillation, pyridine and phenol removal, decolorizing distillation, thiolremoval, polymerization, flash evaporation, molecular distillation and curing granulation, and the low-odor coumarone resin is obtained. By means of the method, environmental protection problems of solvent residues and the like are solved, the solvent residues are greatly reduced, and the product has no obvious odors. The method is convenient to operate, has low residual oil content, has no odorsand is wide in application range and suitable for industrial production.

Description

technical field [0001] The invention belongs to the technical field of chemical industry, and relates to a preparation method of coumarone resin, in particular to a preparation method of low-odor coumarone resin, in particular to a production of coumarone resin for reducing residual solvents and mercaptans method. Background technique [0002] Coumarone-indene resin (abbreviation: Coumarone resin) has excellent properties such as acid resistance, alkali resistance, adhesion, plasticization and reinforcement, and is soluble in chlorinated hydrocarbons, esters, ketones, ethers, etc. It has good compatibility with various resins such as natural rubber and epoxy resin. It has been widely used as a modifier of various resins for a long time. It is mainly used in coatings, electronic materials, adhesives, sealing agent, rubber, ink and other fields, [0003] The typical production process of coumarone resin in the prior art includes distillation and cutting fractions, acid eluti...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): C08F244/00C08F6/10
CPCC08F6/10C08L45/02
Inventor 侯文杰朱春燕王仁远陈新王强袁轶浩卜士明李家发
Owner BAOWU CHARCOAL MATERIAL TECH CO LTD
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