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High-solid-content low-softening-point light-colored liquid terpene resin as well as preparation method and application thereof

A technology of terpene resin and low softening point. It is applied in the field of liquid terpene resin and its preparation. It can solve the problems of resin solid content reduction, influence on catalyst treatment, solidification and precipitation, etc., to improve processability and consistency, and increase raw material polymerization. Activity, effect of improving adhesion and strength

Active Publication Date: 2018-09-04
吉安科茂树脂有限公司 +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the complex composition of this type of product, it is prone to unstable performance during use, especially at low temperature, which is prone to solidification and precipitation, which affects the performance of use. In addition, this type of oil-soluble liquid emulsion product is due to the use of organic solvents. also cause environmental pollution
The second type is liquid rosin resin: under normal circumstances, rosin polyol ester has higher softening point and higher viscosity, in order to prepare low softening point, low viscosity resin, either directly mix rosin or modified rosin Alcohols or diols or their derivatives are produced by the reaction. The resin prepared in this way needs to be carried out under high temperature and high pressure. On the one hand, the energy consumption is serious, and on the other hand, some alcohol derivatives have high pollution. Application; Either prepare a rosin polyol ester with a high softening point first, then reserve the terminal hydroxyl group, and then react with a higher fatty acid at a high temperature. Problems with poor fluidity at room temperature or low temperature
At present, the preparation of liquid terpene resin generally adopts solid Lewis acid such as AlCl 3 Catalyzed polymerization, because the catalyst cannot be well dissolved in the solvent for dispersion, resulting in low polymerization efficiency of raw materials, in order to improve the polymerization efficiency, generally increase the amount of catalyst, which will not only lead to waste of catalyst, affect the later catalyst treatment, environmental pollution, but also lead to The color of the resin deepens, and in order to reduce the color of the resin without affecting the yield, polymerization is generally carried out at low temperature. The result of this treatment is that the chain transfer of the raw materials is not easy to occur during the polymerization process, and chain growth is easy to occur, which will lead to a high softening point of the resin In this case, in order to obtain a liquid resin with a low softening point, it is generally diluted by adding solvent naphtha, mineral oil or an organic solvent, which leads to a decrease in the solid content of the resin, and is prone to leakage or solidification and precipitation during later use, thereby limiting its scope of use and value

Method used

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  • High-solid-content low-softening-point light-colored liquid terpene resin as well as preparation method and application thereof
  • High-solid-content low-softening-point light-colored liquid terpene resin as well as preparation method and application thereof
  • High-solid-content low-softening-point light-colored liquid terpene resin as well as preparation method and application thereof

Examples

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Effect test

Embodiment 1

[0039] An embodiment of the preparation method of the light-colored liquid terpene resin with high solid content and low softening point of the present invention comprises the following steps:

[0040] (1) In a 1000mL dry four-neck flask equipped with a stirrer, thermometer, calcium chloride drying tube and constant pressure dropping funnel, add 1.00g AlCl 3 , 300mL of dry toluene and 0.10g of phosphorus-containing inorganic acid light color agent, inject 0.05g of dichloroethane with a micro-syringe at the same time, place it in a low-temperature circulation pump, and pass through N 2 Exhaust the air, start stirring, slowly add 300g of refined masson turpentine into the flask through the constant pressure dropping funnel, control the reaction temperature at 50°C, add 1.00g of AlCl after 1 / 3 of the turpentine is added dropwise 3 and 0.05g of dichloroethane, add 1.00g of AlCl after adding 2 / 3 dropwise 3 and 0.05g ethylene dichloride, continue to drop the remaining turpentine, a...

Embodiment 2

[0043] The preparation method of the light-colored liquid terpene resin with high solid content and low softening point described in this embodiment comprises the following steps:

[0044] (1) In a 1000mL dry four-neck flask equipped with a stirrer, thermometer, calcium chloride drying tube and constant pressure dropping funnel, add 1.20g AlCl 3 , 300mL of dry toluene and 0.15g of phosphorus-containing inorganic acid light color agent, inject 0.09g of dichloroethane with a micro-syringe at the same time, place it in a low-temperature circulation pump, and pass N 2 Exhaust the air, start stirring, slowly add 300g of refined wetland turpentine into the flask through the constant pressure dropping funnel, control the reaction temperature at 50°C, add 1.20g of AlCl after 1 / 3 of the turpentine is added dropwise 3 and 0.09g dichloroethane, add 1.20g AlCl after adding 2 / 3 dropwise 3 and 0.09g ethylene dichloride, continue to drop the remaining turpentine, after the dropwise addition...

Embodiment 3

[0047] The preparation method of the light-colored liquid terpene resin with high solid content and low softening point described in this embodiment comprises the following steps:

[0048] (1) In a 1000mL dry four-neck flask equipped with a stirrer, thermometer, calcium chloride drying tube and constant pressure dropping funnel, add 1.50g AlCl 3 , 300mL of dry toluene and 0.12g of phosphorus-containing inorganic acid light color agent, inject 0.15g of dichloroethane with a micro-syringe at the same time, place it in a low-temperature circulation pump, and pass N 2 Exhaust the air, start stirring, slowly add 300g of refined Simao turpentine into the flask through the constant pressure dropping funnel, control the reaction temperature at 60°C, add 1.50g of AlCl after 1 / 3 of the turpentine is added dropwise 3 and 0.15g of dichloroethane, add 1.50g of AlCl after 2 / 3 of the dropwise addition 3 and 0.15g ethylene dichloride, continue to drop the remaining turpentine, after the drop...

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Abstract

The present invention discloses high-solid-content low-softening-point light-colored liquid terpene resin. The resin has a structure shown in a general formula (I), wherein n is an integer, and the value range of n satisfies a relationship of 2<=n<=5. The present invention also discloses a preparation method and application of the liquid terpene resin. The liquid terpene resin provided by the present invention has a solid content of 99% or more, a color (solid Gardner color scale) of less than a No.3 color and a softening point of less than 28 DEG C, can be used as a non-solvent type lubricantto be directly used in glass fibers to replace a paraffin latex liquid, can also be used as a liquid component of a tackifying emulsion to replace a low-molecular organic solvent or mineral oil, andis used as tackifying resin to be directly applied to a low-temperature-resistant adhesive.

Description

technical field [0001] The invention relates to a liquid terpene resin and its preparation method and application, in particular to a light-colored liquid terpene resin with high solid content and low softening point and its preparation method and application. Background technique [0002] The annual output of turpentine in my country ranks first in the world. Using turpentine as raw material to produce high value-added fine chemical products is in line with the strategy of sustainable development and has important economic value and research significance. Among them, the terpene resin obtained by polymerizing turpentine or pinene as a raw material is widely used due to its excellent performance. Terpene resin is an excellent tackifier with excellent properties such as strong adhesion, good aging resistance, good heat resistance, light resistance, alkali resistance, odorless and non-toxic, and is widely used in coatings, rubber, inks, etc. , packaging, adhesives and other i...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C08F32/00C08F6/10
CPCC08F6/10C08F32/00C08L45/00
Inventor 翁亮徐社阳陈军姚以健
Owner 吉安科茂树脂有限公司
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