CN109824811A - A kind of preparation method of Alpha-Methyl benzene second dilute liquid resin - Google Patents
A kind of preparation method of Alpha-Methyl benzene second dilute liquid resin Download PDFInfo
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- CN109824811A CN109824811A CN201811498462.5A CN201811498462A CN109824811A CN 109824811 A CN109824811 A CN 109824811A CN 201811498462 A CN201811498462 A CN 201811498462A CN 109824811 A CN109824811 A CN 109824811A
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- methyl benzene
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Abstract
The invention belongs to liquid resin production technical fields, especially a kind of preparation method of Alpha-Methyl benzene second dilute liquid resin, it is at high cost to solve hot-fusible pressure-sensitive adhesive tackifying resin raw materials for production in the prior art, reaction temperature is high, lower temperature resistance is poor, the problem of viscosity and colour difference, the preparation method of the Alpha-Methyl benzene second dilute liquid resin, the following steps are included: S1, dilute, short-chain olefin and reaction dissolvent are added in reaction kettle after being stirred by Alpha-Methyl benzene second, strong acid catalyst and antioxidant reaction is added；S2, lye and demulsifier removing strong acid catalyst is added, rectification under vacuum obtains rectifying object；S3, rectifying object and polyethylene glycol are sufficiently mixed to obtain the final product.Preparation method proposed by the present invention is simple, and reaction condition is mild, and obtained liquid resin safety and environmental protection, good in oxidation resistance, resistance to low temperature is excellent, can be in cold winter normal use, and viscosity and coloration are good, have a wide range of application.
Description
Technical field
The present invention relates to liquid resin production technical field more particularly to a kind of preparations of Alpha-Methyl benzene second dilute liquid resin
Method.
Background technique
Hot-fusible pressure-sensitive adhesive is the third generation pressure sensitive adhesive product after solvent type and emulsion-type pressure-sensitive, compared with the above two,
Thermotropic pressure sensitive glue is solvent-free, is more advantageous to environmental protection and keeps the safety in production, high production efficiency, and production cost is relatively low.Therefore, the world
The positive Devoting Major Efforts To Developing thermotropic pressure sensitive glue in various countries.With flourishing for delivery industry, hot-fusible pressure-sensitive adhesive has welcome a new step again
Opportunity to develop, but domestic hot-fusible pressure-sensitive adhesive haves the defects that resistance to low temperature is poor, and low temperature easily solidifies, and adhesive strength is lower, hinders
Its use in cold winter.
Tackifying resin is except another most important ingredient that body elastic is external in hot-fusible pressure-sensitive adhesive, its main function is
Pressure sensitive adhesive is given with necessary viscosity, the performance superiority and inferiority of tackifying resin directly determines the adhesion strength of hot-fusible pressure-sensitive adhesive.Therefore,
The resistance to low temperature of tackifying resin directly affects the scope of application of hot-fusible pressure-sensitive adhesive.In the prior art, has patent report
Low temperature resistant tackifying resin has CN 105647203A, CN 107629410A, CN 107459779A etc..Standby resistance to of above-mentioned patent system
Low temperature tackifying resin mainly uses epoxy resin or rosin resin as main synthon, and raw material use cost is high；Preparation process
Middle reaction temperature is up to 200 DEG C or more, and excessively high reaction temperature is different to viscosity, the coloration of low temperature resistant tackifying resin etc.
The influence of degree.Based on above statement, the invention proposes a kind of preparation methods of Alpha-Methyl benzene second dilute liquid resin.
Summary of the invention
It is at high cost with tackifying resin raw materials for production that the purpose of the present invention is to solve hot-fusible pressure-sensitive adhesives in the prior art, instead
Answer the problem of temperature is high, and lower temperature resistance is poor, viscosity and colour difference, and a kind of preparation of the Alpha-Methyl benzene second dilute liquid resin proposed
Method.
A kind of preparation method of Alpha-Methyl benzene second dilute liquid resin, comprising the following steps:
S1, by Alpha-Methyl benzene second, dilute, short-chain olefin and reaction dissolvent are added in reaction kettle jointly after being uniformly mixed,
Strong acid catalyst and antioxidant is added with the rate of 1~5g/min, control reaction temperature is 5~20 DEG C, and 2~4h of reaction must be mixed
Object, wherein the dilute mass ratio with short-chain olefin of Alpha-Methyl benzene second is 0.8~8:1, the dilute quality with reaction dissolvent of Alpha-Methyl benzene second
Than for 2~3:1, Alpha-Methyl benzene second is dilute, the mass ratio of strong acid catalyst and antioxidant is 1:0.01~0.03:0.01~0.03；
S2, the lye that mixture gross mass 3~5% is added into mixture and mixture gross mass 0.3~0.5% it is broken
Emulsion is sufficiently stirred 20~40min and sloughs strong acid catalyst, and the mixture for sloughing strong acid catalyst is then carried out vacuum fine
It evaporates, takes the fraction at 150 DEG C, obtain rectifying object；
Rectifying object and polyethylene glycol are added in mixing machine jointly, are sufficiently mixed by S3, in mass ratio 8.5~14.5:1
Uniformly up to Alpha-Methyl benzene second dilute liquid resin；
The strong acid catalyst is made by following methods:
A, 5~10 parts by weight of potassium sulfate, 5~10 parts by weight of anhydrous cupric sulfate, 3~8 parts by weight of aluminum oxide, three are weighed
3~5 parts by weight of sulfur oxide, 12~18 parts by weight of ethanol solution that mass fraction is 40%, contain 2~4 parts by weight of 4- chloropyridine admittedly
10~20 parts by weight of silica solution of amount 25% are spare；
B, potassium sulfate, anhydrous cupric sulfate, aluminum oxide and 4- chloropyridine are added sequentially to mass fraction is 40%
In ethanol solution, it is warming up to 35~55 DEG C, after sonic oscillation dispersion, is continuously heating to 80~100 DEG C, after 1~2h of isothermal holding,
50~70 DEG C are cooled to, sulfur trioxide is added, after continuation vibrating dispersion is uniform, the silica solution that solid content is 25% is added, with 300
The revolving speed of~500r/min is drying to obtain strong acid catalyst after being stirred 0.5~1h.
Preferably, the short-chain olefin is 1- butylene, 2- butylene, butadiene, 1- amylene, iso-amylene, isoprene, penta
One of diene, styrene or any several mixtures.
Preferably, the reaction dissolvent is toluene or dimethylbenzene.
Preferably, the lye is the ammonia spirit that mass fraction is 10%.
A kind of preparation method of Alpha-Methyl benzene second dilute liquid resin proposed by the present invention, has the advantages that
1, by Alpha-Methyl benzene second, dilute, short-chain olefin and reaction dissolvent are added in reaction kettle the present invention after being stirred, and are added
Enter strong acid catalyst and antioxidant reaction；Lye is added and demulsifier sloughs strong acid catalyst, rectification under vacuum obtains rectifying object；Finally
Rectifying object and polyethylene glycol are sufficiently mixed up to Alpha-Methyl benzene second dilute liquid resin；The present invention is using production phenol, acetone
By-product Alpha-Methyl benzene second is dilute to be used as primary raw material, effectively reduces production cost, while by-product recovery recycles, and widens
Alpha-Methyl benzene second dilute application field；Preparation method proposed by the present invention is simple, and reaction condition is mild, avoids traditional liquid
The drawbacks of reaction temperature is high during production of resins, influences product property；The liquid resin safety and environmental protection that the present invention is prepared,
Good in oxidation resistance, resistance to low temperature is excellent, can be in cold winter normal use, and viscosity and coloration are good, have a wide range of application.
2, the present invention use potassium sulfate, anhydrous cupric sulfate, aluminum oxide, sulfur trioxide, 4- chloropyridine, mass fraction for
40% ethanol solution and the silica solution of solid content 25% compound and strong acid catalyst are made, and can obviously reduce reaction for this reaction
Temperature accelerates reaction rate, improves reaction conversion ratio, and in addition to this, strong acid catalyst prepared by the present invention is by being added lye
It can be sloughed with demulsifier, be washed after sloughing, dry and can be used to secondary response again, renewable Reusability effectively reduces
Production cost.
Specific embodiment
Combined with specific embodiments below the present invention is made further to explain.
Embodiment one
A kind of preparation method of Alpha-Methyl benzene second dilute liquid resin proposed by the present invention, comprising the following steps:
S1, by Alpha-Methyl benzene second, dilute, short-chain olefin and reaction dissolvent are added in reaction kettle jointly after being uniformly mixed,
Strong acid catalyst and antioxidant is added with the rate of 1g/min, control reaction temperature is 5 DEG C, and reaction 2h obtains mixture, wherein α-
The dilute mass ratio with short-chain olefin of methylbenzene second is 0.8:1, and the dilute mass ratio with reaction dissolvent of Alpha-Methyl benzene second is 2:1, α-first
Base benzene second is dilute, the mass ratio of strong acid catalyst and antioxidant is 1:0.01:0.01；
The demulsifier of S2, the lye that mixture gross mass 3% is added into mixture and mixture gross mass 0.3%, fill
Stirring 20min is divided to slough strong acid catalyst, the mixture that then will slough strong acid catalyst carries out rectification under vacuum, takes at 150 DEG C
Fraction, obtain rectifying object；
Rectifying object and polyethylene glycol are added in mixing machine by S3, in mass ratio 8.5:1 jointly, are sufficiently mixed uniformly i.e.
Obtain Alpha-Methyl benzene second dilute liquid resin；
The strong acid catalyst is made by following methods:
A, 5 parts by weight of potassium sulfate, 5 parts by weight of anhydrous cupric sulfate, 3 parts by weight of aluminum oxide, 3 weight of sulfur trioxide are weighed
Part, 12 parts by weight of ethanol solution that 2 parts by weight of 4- chloropyridine, mass fraction are 40%, 10 weight of silica solution of solid content 25%
Part is spare；
B, potassium sulfate, anhydrous cupric sulfate, aluminum oxide and 4- chloropyridine are added sequentially to mass fraction is 40%
In ethanol solution, it is warming up to 35 DEG C, after sonic oscillation dispersion, is continuously heating to 80 DEG C, after isothermal holding 1h, is cooled to 50 DEG C,
Sulfur trioxide is added, after continuation vibrating dispersion is uniform, the silica solution that solid content is 25% is added and is stirred with the revolving speed of 300r/min
Strong acid catalyst is drying to obtain after mixing mixing 0.5h.
In above-mentioned reaction, short-chain olefin is answered for the 1- butylene of mass ratio 1:1:1:1,2- butylene, 1- amylene and styrene
With object；Reaction dissolvent is toluene；Lye is the ammonia spirit that mass fraction is 10%.
The resin property is as follows:
Softening point: 2.5 DEG C；
Coloration: 29.95/3.4；
40 DEG C of viscosity: 14768cp；
Appearance: light-coloured transparent liquid.
Embodiment two
A kind of preparation method of Alpha-Methyl benzene second dilute liquid resin proposed by the present invention, comprising the following steps:
S1, by Alpha-Methyl benzene second, dilute, short-chain olefin and reaction dissolvent are added in reaction kettle jointly after being uniformly mixed,
Strong acid catalyst and antioxidant is added with the rate of 3g/min, control reaction temperature is 12 DEG C, and reaction 3h obtains mixture, wherein α-
The dilute mass ratio with short-chain olefin of methylbenzene second is 4.5:1, and the dilute mass ratio with reaction dissolvent of Alpha-Methyl benzene second is 2.5:1, α-
Methylbenzene second is dilute, the mass ratio of strong acid catalyst and antioxidant is 1:0.02:0.02；
The demulsifier of S2, the lye that mixture gross mass 4% is added into mixture and mixture gross mass 0.4%, fill
Stirring 30min is divided to slough strong acid catalyst, the mixture that then will slough strong acid catalyst carries out rectification under vacuum, takes at 150 DEG C
Fraction, obtain rectifying object；
Rectifying object and polyethylene glycol are added in mixing machine by S3, in mass ratio 11.5:1 jointly, are sufficiently mixed uniformly i.e.
Obtain Alpha-Methyl benzene second dilute liquid resin；
The strong acid catalyst is made by following methods:
A, 8 parts by weight of potassium sulfate, 8 parts by weight of anhydrous cupric sulfate, 5 parts by weight of aluminum oxide, 4 weight of sulfur trioxide are weighed
Part, 15 parts by weight of ethanol solution that 3 parts by weight of 4- chloropyridine, mass fraction are 40%, 15 weight of silica solution of solid content 25%
Part is spare；
B, potassium sulfate, anhydrous cupric sulfate, aluminum oxide and 4- chloropyridine are added sequentially to mass fraction is 40%
In ethanol solution, it is warming up to 45 DEG C, after sonic oscillation dispersion, is continuously heating to 90 DEG C, after isothermal holding 1.5h, is cooled to 60
DEG C, sulfur trioxide is added, continue vibrating dispersion it is uniform after, the silica solution that solid content is 25% is added, with the revolving speed of 400r/min,
Strong acid catalyst is drying to obtain after being stirred 0.8h.
In above-mentioned reaction, 1- butylene, butadiene, iso-amylene and isoprene that short-chain olefin is mass ratio 1:1:1:1
Compound；Reaction dissolvent is dimethylbenzene；Lye is the ammonia spirit that mass fraction is 10%.
The resin property is as follows:
Softening point: 1.4 DEG C；
Coloration: 22.70/2.7；
40 DEG C of viscosity: 12128cp；
Appearance: light-coloured transparent liquid.
Embodiment three
A kind of preparation method of Alpha-Methyl benzene second dilute liquid resin proposed by the present invention, comprising the following steps:
S1, by Alpha-Methyl benzene second, dilute, short-chain olefin and reaction dissolvent are added in reaction kettle jointly after being uniformly mixed,
Strong acid catalyst and antioxidant is added with the rate of 5g/min, control reaction temperature is 20 DEG C, and reaction 4h obtains mixture, wherein α-
The dilute mass ratio with short-chain olefin of methylbenzene second is 8:1, and the dilute mass ratio with reaction dissolvent of Alpha-Methyl benzene second is 3:1, Alpha-Methyl
Benzene second is dilute, the mass ratio of strong acid catalyst and antioxidant is 1:0.03:0.03；
The demulsifier of S2, the lye that mixture gross mass 5% is added into mixture and mixture gross mass 0.5%, fill
Stirring 40min is divided to slough strong acid catalyst, the mixture that then will slough strong acid catalyst carries out rectification under vacuum, takes at 150 DEG C
Fraction, obtain rectifying object；
Rectifying object and polyethylene glycol are added in mixing machine by S3, in mass ratio 14.5:1 jointly, are sufficiently mixed uniformly i.e.
Obtain Alpha-Methyl benzene second dilute liquid resin；
The strong acid catalyst is made by following methods:
A, 10 parts by weight of potassium sulfate, 10 parts by weight of anhydrous cupric sulfate, 8 parts by weight of aluminum oxide, 5 weight of sulfur trioxide are weighed
Measure part, 4 parts by weight of 4- chloropyridine, mass fraction be 40% 18 parts by weight of ethanol solution, solid content 25% 20 weight of silica solution
It is spare to measure part；
B, potassium sulfate, anhydrous cupric sulfate, aluminum oxide and 4- chloropyridine are added sequentially to mass fraction is 40%
In ethanol solution, it is warming up to 55 DEG C, after sonic oscillation dispersion, is continuously heating to 100 DEG C, after isothermal holding 2h, is cooled to 70 DEG C,
Sulfur trioxide is added, after continuation vibrating dispersion is uniform, the silica solution that solid content is 25% is added and is stirred with the revolving speed of 500r/min
Strong acid catalyst is drying to obtain after mixing mixing 1h.
In above-mentioned reaction, short-chain olefin is that the 2- butylene of mass ratio 1:1:1:1, butadiene, pentadiene, styrene are answered
Ingredients；Reaction dissolvent is toluene；Lye is the ammonia spirit that mass fraction is 10%.
The resin property is as follows:
Softening point: 2.8 DEG C；
Coloration: 20.18/2.5；
40 DEG C of viscosity: 13458cp；
Appearance: light-coloured transparent liquid.
Comparative example: light dydrocarbon liquid resin, softening point: 3.9 DEG C, coloration: 21.37/2.6,40 DEG C of viscosity: 16170cp.
In summary: the Alpha-Methyl benzene second dilute liquid resin and light dydrocarbon liquid resin prepared in the embodiment of the present invention one~tri-
It compares, softening point and viscosity are lower, and comprehensive performance is more excellent.
The foregoing is only a preferred embodiment of the present invention, but scope of protection of the present invention is not limited thereto,
Anyone skilled in the art in the technical scope disclosed by the present invention, according to the technique and scheme of the present invention and its
Inventive concept is subject to equivalent substitution or change, should be covered by the protection scope of the present invention.
Claims (4)
1. a kind of preparation method of Alpha-Methyl benzene second dilute liquid resin, which comprises the following steps:
S1, by Alpha-Methyl benzene second, dilute, short-chain olefin and reaction dissolvent are added in reaction kettle jointly after being uniformly mixed, with 1
Strong acid catalyst and antioxidant is added in the rate of~5g/min, and control reaction temperature is 5~20 DEG C, and 2~4h of reaction obtains mixture,
Wherein the dilute mass ratio with short-chain olefin of Alpha-Methyl benzene second is 0.8~8:1, and the dilute mass ratio with reaction dissolvent of Alpha-Methyl benzene second is
2~3:1, Alpha-Methyl benzene second is dilute, the mass ratio of strong acid catalyst and antioxidant is 1:0.01~0.03:0.01~0.03；
The demulsification of S2, the lye that mixture gross mass 3~5% is added into mixture and mixture gross mass 0.3~0.5%
Agent is sufficiently stirred 20~40min and sloughs strong acid catalyst, and the mixture for sloughing strong acid catalyst is then carried out rectification under vacuum,
The fraction at 150 DEG C is taken, rectifying object is obtained；
Rectifying object and polyethylene glycol are added in mixing machine by S3, in mass ratio 8.5~14.5:1 jointly, are sufficiently mixed uniformly
Up to Alpha-Methyl benzene second dilute liquid resin；
The strong acid catalyst is made by following methods:
A, 5~10 parts by weight of potassium sulfate, 5~10 parts by weight of anhydrous cupric sulfate, 3~8 parts by weight of aluminum oxide, three oxidations are weighed
3~5 parts by weight of sulphur, 2~4 parts by weight of 4- chloropyridine, 12~18 parts by weight of ethanol solution that mass fraction is 40%, solid content
25% 10~20 parts by weight of silica solution are spare；
B, potassium sulfate, anhydrous cupric sulfate, aluminum oxide and 4- chloropyridine are added sequentially to the ethyl alcohol that mass fraction is 40%
In solution, it is warming up to 35~55 DEG C, after sonic oscillation dispersion, is continuously heating to 80~100 DEG C, after 1~2h of isothermal holding, cooling
To 50~70 DEG C, sulfur trioxide is added, continue vibrating dispersion it is uniform after, the silica solution that solid content is 25% is added, with 300~
The revolving speed of 500r/min is drying to obtain strong acid catalyst after being stirred 0.5~1h.
2. a kind of preparation method of Alpha-Methyl benzene second dilute liquid resin according to claim 1, which is characterized in that described short
Olefine be one of 1- butylene, 2- butylene, butadiene, 1- amylene, iso-amylene, isoprene, pentadiene, styrene or
Any several mixtures.
3. a kind of preparation method of Alpha-Methyl benzene second dilute liquid resin according to claim 1, which is characterized in that described anti-
Answering solvent is toluene or dimethylbenzene.
4. a kind of preparation method of Alpha-Methyl benzene second dilute liquid resin according to claim 1, which is characterized in that the alkali
Liquid is the ammonia spirit that mass fraction is 10%.
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| CN201811498462.5A CN109824811A (en) | 2018-12-08 | 2018-12-08 | A kind of preparation method of Alpha-Methyl benzene second dilute liquid resin |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3919181A (en) * | 1973-10-11 | 1975-11-11 | Schenectady Chemical | Preparation of hydrocarbon resins using zirconium tetrachloride |
| US5177163A (en) * | 1990-04-24 | 1993-01-05 | Hercules Incorporated | Light colored, aromatic-modified piperylene resins |
| CN1249733A (en) * | 1997-01-08 | 2000-04-05 | 赫尔克里士公司 | Metal oxide solid acids as catalysts for preparation of hydrocarbon resins |
| CN1309674A (en) * | 1998-07-18 | 2001-08-22 | 拜尔公司 | Method for polymerizing conjugated diolefins (dienes) with rare-earth catalysts in presence of vinylaromatic solvents |
| CN1334275A (en) * | 2000-07-21 | 2002-02-06 | 北京燕山石油化工公司研究院 | Process for preparing copolymer of vinylaryl monomer and alpha-alkene |
-
2018
- 2018-12-08 CN CN201811498462.5A patent/CN109824811A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3919181A (en) * | 1973-10-11 | 1975-11-11 | Schenectady Chemical | Preparation of hydrocarbon resins using zirconium tetrachloride |
| US5177163A (en) * | 1990-04-24 | 1993-01-05 | Hercules Incorporated | Light colored, aromatic-modified piperylene resins |
| CN1249733A (en) * | 1997-01-08 | 2000-04-05 | 赫尔克里士公司 | Metal oxide solid acids as catalysts for preparation of hydrocarbon resins |
| CN1309674A (en) * | 1998-07-18 | 2001-08-22 | 拜尔公司 | Method for polymerizing conjugated diolefins (dienes) with rare-earth catalysts in presence of vinylaromatic solvents |
| CN1334275A (en) * | 2000-07-21 | 2002-02-06 | 北京燕山石油化工公司研究院 | Process for preparing copolymer of vinylaryl monomer and alpha-alkene |
Non-Patent Citations (2)
| Title |
|---|
| 卜群等: "α-甲基苯乙烯改性石油树脂的工艺研究", 《山东化工》 * |
| 甘斯祚等: "《应用物理化学 第3分册 催化作用及其反应动力学》", 31 October 1992, 高等教育出版社 * |
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