Modified rosin resin with high-boiling point alcohol lignin and its derivative and production thereof

A high-boiling alcohol lignin and rosin modified resin technology, applied in the chemical modification of natural resins, etc., can solve the problem of low chemical activity of lignosulfonate, low softening point of rosin modified resin, and no practical application value, etc. problems, to achieve low cost, good economic benefits, and improve thermal stability

Inactive Publication Date: 2006-08-16
FUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] In the past, lignin industrial products were mostly extracted from the traditional papermaking "black liquor". Not only the impurity content was high, but also the natural lignin in plant raw materials undergoes major structural changes after being cooked with alkali and sulfite. The chemical activity of the obtained lignosulfonate is low, the softening point of the prepared rosin modified resin is low, the performance is poor, and there is no value for practical application

Method used

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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0045] (3) The preparation method comprises the following process steps:

[0046] (1) Raw material mixing:

[0047] (a) direct high boiling alcohol lignin or high boiling alcohol lignin derivatives with rosin;

[0048] Or (b) adding high boiling alcohol lignin or derivatives of high boiling alcohol lignin and rosin to polyhydric alcohol;

[0049] or (c) mixing high boiling alcohol lignin or derivatives of high boiling alcohol lignin, rosin plus phenol and polyhydric alcohol;

[0050] or (d) mixing high boiling alcohol lignin or derivatives of high boiling alcohol lignin, rosin plus phenols, aldehydes and polyols;

[0051] (2) Further mixing

[0052] (a) Protected by an inert gas, then stir to make them completely mixed;

[0053] Or (b) direct heating and melting, then stirring to make them completely mixed;

[0054] (3) Then add metal oxides or other catalysts for the esterification of rosin, and heat to 140-265 degrees to make them react;

[0055] (4) In the later stage...

Embodiment 1

[0060] Embodiment 1: Preparation of high boiling alcohol lignin rosin modified resin

[0061] Weigh 100 grams of rosin, 0.4 gram of magnesium oxide catalyst, add 2 grams, 3 grams, and 4 grams of high-boiling alcohol lignin respectively, and react for 5 hours under nitrogen protection at a temperature of 235 ° C, and the obtained high-boiling alcohol lignin is modified. The performance of permanent rosin resin is as shown in table 1:

[0062] Sample serial number

Embodiment 2

[0063] Embodiment 2: the preparation of high boiling alcohol lignin, glycerol, rosin modified resin

[0064] Weigh 100 grams of rosin, 12 grams of glycerin, 0.2 grams of magnesium oxide catalyst, add 2 grams and 4 grams of high-boiling alcohol lignin respectively, and react for 5 hours under nitrogen protection at a temperature of 250 ° C to obtain high-boiling alcohol lignin The performance of modified rosin resin is as shown in table 2:

[0065] Rosin

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PUM

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Abstract

Rosin modified resin of high-boiling point alcohol lignin and its derivative and its production are disclosed. The procedure is carried out by mixing high-boiling point alcohol lignin or its derivative with rosin, adding into polylol, phenols and aldehyde, heating, smelting, agitating while mixing homogeneously, adding into catalyst, heating, reacting to generate high-boiling point alcohol lignin modified rosin resin, vacuum supplying and dewatering. It has less consumption and improves softening point and viscosity. It can be used for modified additive or paint of rubber, polyurethane or unsaturated polyester.

Description

Technical field: [0001] The invention relates to the manufacturing industry of rosin modified resin, in particular to the process and formula of using high boiling alcohol lignin and its derivatives as important raw materials for modification of lignin rosin modified resin. Background technique: [0002] Rosin is a natural resin with low softening point and high acid value, which affects its application. People often use the method of preparing modified resin to improve the range of use of rosin. Previously, there were precedents of using polyols, phenols, and aldehydes as raw materials in the research report on the preparation of rosin-modified resins, but the polyols, phenols, and aldehydes used in the prior art are all downstream products of petrochemical industry. The shortage of resources and high cost are not conducive to sustainable development. The use of renewable natural polymers to replace or partially replace polyols, phenols, and aldehydes to prepare rosin-modi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09F1/04
Inventor 程贤甦高仁金
Owner FUZHOU UNIV
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