Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method of rosin tackifying resin

A technology of tackifying resin and rosin

Active Publication Date: 2016-03-09
GUANGXI ZHONGCHANG RESIN
View PDF5 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The purpose of the present invention is to provide a preparation method of rosin tackifying resin, which can solve the problems of high softening point, deep color and unstable product performance in existing rosin tackifying resin

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0009] The preparation method of the rosin tackifying resin of the present embodiment is:

[0010] Under the condition of inert gas, put 100 grams of masson pine rosin into the reaction kettle and heat and melt it. When the temperature in the kettle rises to 140°C, add 12 grams of acrylic acid and 30 grams of fatty acid into the reaction kettle and stir, and heat up to 200°C within 20 minutes. At this time, add 25 grams of pentaerythritol to the reaction kettle and stir evenly. After the temperature is kept at 200°C for 8 hours, remove the low boiling point substances. material.

[0011] The color number of the rosin tackifying resin obtained in this example is No. 5, the softening point is 99° C., and the acid value is 19.

Embodiment 2

[0013] The preparation method of the rosin tackifying resin of the present embodiment is:

[0014] Under the condition of inert gas, put 100 grams of masson pine rosin into the reaction kettle and heat and melt it. When the temperature in the kettle rises to 140°C, add 10 grams of acrylic acid and 35 grams of fatty acid into the reaction kettle and stir, and heat up to 200°C within 30 minutes. At this time, add 22 grams of pentaerythritol to the reaction kettle and stir evenly. After the temperature is kept at 230°C for 6 hours, the low boiling point substances are removed. material.

[0015] The color number of the rosin tackifying resin obtained in this example is No. 5, the softening point is 101° C., and the acid value is 18.5.

Embodiment 3

[0017] The preparation method of the rosin tackifying resin of the present embodiment is:

[0018] Under the condition of inert gas, put 100 grams of masson pine rosin into the reaction kettle and heat and melt it. When the temperature in the kettle rises to 140°C, add 15 grams of acrylic acid and 32 grams of fatty acid into the reaction kettle and stir, and heat up to 200°C within 40 minutes. 22 grams of pentaerythritol was added to the reaction kettle and stirred evenly. After the temperature was kept at 250°C for 3 hours, the low boiling point substances were removed. material.

[0019] The color number of the rosin tackifying resin obtained in this example is No. 4, the softening point is 103° C., and the acid value is 18.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
softening pointaaaaaaaaaa
softening pointaaaaaaaaaa
softening pointaaaaaaaaaa
Login to View More

Abstract

The invention discloses a method for preparing rosin tackifying resin and relates to the technical field of rosin processing. The method comprises the following steps of putting rosin of masson pine into a reactor in presence of an inert gas, heating for dissolving, when the temperature in the reactor is raised to 140 DEG C, adding acrylic acid and fatty acid into the reactor, stirring, raising the temperature to 200 DEG C within 20-40 minutes, adding pentaerythritol into the reactor and evenly stirring, maintaining the temperature at 200 DEG C-250 DEG C for 3-8 hours, removing low-boiling-point substances, cooling and discharging. The resin product prepared by the method disclosed by the invention has the advantages of high softening point, light color, small acid value and stable performance.

Description

technical field [0001] The invention relates to the technical field of rosin processing, in particular to a preparation method of rosin tackifying resin. Background technique [0002] Rosin tackifying resin is a product obtained by modifying rosin. It is widely used in adhesives, inks, coatings and other industries. The existing rosin tackifying resin has a high softening point, easy to darken the color, and unstable product performance. , there will be problems such as viscosity drop and bonding failure. Contents of the invention [0003] The purpose of the present invention is to provide a preparation method of rosin tackifying resin, which can solve the problems of high softening point, deep color and unstable product performance in existing rosin tackifying resin. [0004] In order to solve the above problems, the technical solution adopted in the present invention is: the preparation method of this rosin tackifying resin comprises the following steps: under the condi...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Patents(China)
IPC IPC(8): C09F1/04
Inventor 黄桂彬
Owner GUANGXI ZHONGCHANG RESIN