Producing method for high softening point polymer resin
A technique for polymerizing rosin and a production method, which is applied in the production field of high softening point polymerized rosin, can solve problems such as low dimer content, product quality defects, and harsh production environment, and achieve high dimer content, good product quality, The effect of reducing the degree of environmental pollution
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[0021] As shown in the drawings, the main points, process conditions and product performance indicators of the production method of the present invention are implemented in the production device as shown in FIG. 1 as follows.
[0022] 1. Main points of the production method of the present invention:
[0023] (1) Using gum rosin as raw material;
[0024] (2) The solvent used in the polymerization reaction is No. 200 gasoline;
[0025] (3) 95% concentrated sulfuric acid was added dropwise to carry out polymerization reaction under the water bath cooling of the jacketed reactor;
[0026] (4) Neutralize the polymerized rosin reaction solution with solid ammonium carbonate;
[0027] (5) Wash the clarified neutralized polymer rosin with hot water;
[0028] (6) Distilling the washed polymerized rosin resin to obtain 115 polymerized rosin or 140 polymerized rosin;
[0029] (7) Control the softening point of the product in the refining kettle to obtain 95 polymerized rosin or 145 polymeriz...
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