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Special C5 petroleum resin for adhesive and preparation method of special C5 petroleum resin

A C5 petroleum resin and adhesive technology, applied in adhesive types, mineral oil hydrocarbon copolymer adhesives, etc., can solve resin softening point and unstable viscosity value, aluminum trichloride powder strong water absorption, polymerization Problems such as colloids appear in the process, and the softening point and melt viscosity are moderate, the molecular weight distribution range is narrowed, and the effect of facilitating the reaction process is achieved.

Active Publication Date: 2021-01-22
DAQING HUAKE
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The traditional C5 petroleum resin polymerization uses aluminum trichloride powder as a polymerization catalyst. Due to the heterogeneous phase of the polymerization reaction, the degree of polymerization is difficult to control, the molecular weight distribution is wide, the softening point and viscosity value of the resin are unstable, and the aluminum trichloride powder absorbs water. Strong resistance, easy to deliquescence due to water absorption in the production process, making the production process difficult to control, colloids appear in the polymerization process, and the wax mist point of the product rises, resulting in poor compatibility between the resin product and other substrates in the adhesive, and the adhesive will precipitate after a long time. Stratification occurs

Method used

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  • Special C5 petroleum resin for adhesive and preparation method of special C5 petroleum resin

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0030] The preparation method of described a kind of adhesive special-purpose carbon five petroleum resin operates according to the following steps:

[0031] 1) Raw material preparation:

[0032] Adjust the total content of olefins and the ratio of dimonoene in the polymerization system so that the mass concentration ratio of dimonoene is 0.65:1, the total content of dienes is 21.36%, the total content of monoenes is 33.09%, and the content of alkane is 45.55%. After mixing 178g of raw material A and 80g of raw material B evenly, add it to the dropping funnel for later use.

[0033] 2) Polymerization reaction:

[0034] Turn on the reactor to stir, turn on the reflux water, and weigh 3.24gAlCl successively 3 Add the composite catalyst and 282g of carbon penta-alkane fraction C into a closed pressure dynamic stirring reactor, drop the spare raw materials into the reactor, and continue to react at a constant temperature at a temperature of 40-85°C and a pressure of 0.15-0.45MPa...

Embodiment 2

[0041] The technical means and method steps are the same as in Example 1, except that the mass concentration ratio of dienes and monoenes in the polymerization system is adjusted to 0.96:1, the total content of dienes is 30.25%, the total content of monoenes is 31.55%, and the content of alkane is 38.2%. Mix 265g of raw material A with 64g of raw material B for later use, 3.51g of composite AlCl 3 Catalyst, 211g carbon penta-alkanes cut C adds airtight pressure dynamic reactor.

[0042] The yield of the resin obtained by the polymerization reaction was 39.2%, the softening point was 101.0°C, the hue was 4#, the viscosity was 149.2MPa·s, and the wax fog point was 110°C.

Embodiment 3

[0044] The technical means and method steps are the same as in Example 1 and Example 2, the difference is that the mass concentration ratio of diene and monoene in the polymerization system is adjusted to 0.85:1, the total content of diene is 27.9%, the total content of monoene is 32.92%, and the alkane Content 39.18%. Mix 243g of raw material A with 85g of raw material B for later use, 4.32g of composite AlCl 3 Catalyst, 212g carbon penta-alkanes cut C adds airtight pressure dynamic reactor.

[0045] The yield of the resin obtained by the polymerization reaction was 37.3%, the softening point was 96.0°C, the hue was 4#, the viscosity was 129.6MPa·s, and the wax fog point was 95.0°C.

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Abstract

The invention relates to special C5 petroleum resin for an adhesive and a preparation method of the special C5 petroleum resin. The special C5 petroleum resin for the adhesive comprises the followingpolymerization raw material components in percentage by weight: 5-70% of a raw material A, 4%-35% of a raw material B, 15%-90% of C5 alkane fraction C and 0.5-2.0 wt% of a composite aluminum trichloride cation catalyst. The preparation process comprises the steps of forming a copolymerization reaction solution from the raw material A and the raw material B, taking the C5 alkane fraction C as a polymerization solvent, catalyzing a polymerization reaction by using the composite aluminum trichloride cation catalyst, performing the polymerization reaction by adopting a closed dynamic stirring pressure reaction kettle, transferring the polymerization solution into a water washing kettle after the polymerization reaction is finished, neutralizing and washing to obtain a resin polymerization solution, and carrying out reduced pressure distillation and steam stripping on the resin liquid to obtain the C5 petroleum resin. The special C5 petroleum resin for the adhesive has the advantages of ideal resin yield, moderate softening point and melt viscosity and low wax fog point, and is suitable for the adhesive production industry.

Description

Technical field: [0001] The invention relates to the technical field of petrochemical industry, in particular to a special carbon five petroleum resin for adhesives and a preparation method thereof. Background technique: [0002] In recent years, the application of carbon five petroleum resins for adhesives has become more and more extensive. At present, the production process of C5 petroleum resins for adhesives in China is mainly aliphatic C5 petroleum resins, whose number average molecular weight is in the range of 500-3000. The main chain link of this type of petroleum resin is aliphatic hydrocarbon structure, low chroma, good adhesion, low softening point and acid value, and outstanding water resistance and chemical resistance. [0003] The traditional C5 petroleum resin polymerization uses aluminum trichloride powder as a polymerization catalyst. Due to the heterogeneous phase of the polymerization reaction, the degree of polymerization is difficult to control, the mo...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F240/00C09J157/02
CPCC08F240/00C09J157/02
Inventor 宁媛媛赵万臣韩月辉张向东周洪柱太成哲杨玉梅杜伯栗涛张健凌霞
Owner DAQING HUAKE
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