Ultralight-colored polyterprene resin production process

Abstract

The invention discloses an ultralight-colored polyterprene resin production process. The ultralight-colored polyterprene resin production process includes polymerizing, washing and distilling, and turpentine oil and catalyst of alchlor are polymerized in a reactor during the polymerizing procedure. The ultralight-colored polyterprene resin production process is characterized in that 0.2% by weight of hindered phenol oxidation inhibitor and 0.1 % by weight of decolorizer are added into a polymerized mixed product which is washed during the distilling procedure. Since the core technology at international advanced level is combined with the antioxidant decolorizer and the hindered phenol oxidation inhibitor, the product can be decolored effectively, and mother liquid in color luster ranging from 7# to 8# can be decolored into the product in color luster of 1#. Besides, the filtering procedures are added before and after the washing procedure respectively, so that aluminum dross and impurities can be separated more thoroughly, separation rate can be up to 98% or above. Further, ions, low-boiling-point components and by-products can be separated completely by the aid of precise distilling equipment integrating with the optimum process, odor of products is lightened, and pollution to the environment is reduced.

Description

technical field [0001] The invention relates to a production process of terpene resin. Background technique [0002] Terpene resin is processed from natural turpentine oil, which has good properties such as transparency, non-toxicity, neutrality, electrical insulation, hydrophobicity, non-crystallization, resistance to dilute acids and alkalis, heat resistance, light resistance, aging resistance and strong adhesion. It has good compatibility with various synthetic substances and is easily soluble in aromatic hydrocarbons and vegetable oils. Terpene resin is an excellent tackifier, and its tackifying performance is superior to rosin, rosin modified products and petroleum resins; it is also a modifier for hot-melt materials, and is widely used in rubber, plastics, inks, coatings, adhesives, Pressure-sensitive adhesive, cable, color printing, paint, packaging, anti-rust oil, chewing gum and other industries. The main raw material for the production of terpene resin is turpent...

AI Technical Summary

Problems solved by technology

The loss of effective components is 3-5%, and the energy consumption is large; second, the original process does not add additives during distillation, and the product produced has a deep color (≧4#) and a high iodine value (45-75). Poor thermal stability (3# deepened in 4 hours at 180°C); Third, the original mother liquor after polymerization in the original production process was not filtered, and there was a lot of aluminum slag, which made it difficult to wash in the next process. After washing, it was simply filtered, which affected the quality of the product

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