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发明授权
CN101550209B 一种萜烯树脂中残留单体和溶剂的去除方法 失效 - 权利终止 转让

一种萜烯树脂中残留单体和溶剂的去除方法
摘要：
一种萜烯树脂中残留单体和溶剂的去除方法，属于合成材料技术领域。工业品萜烯树脂是由松节油初步精制后于甲苯溶液中在三氯化铝等催化剂催化条件下进行聚合反应所得到的树脂，被广泛用做各类胶粘剂和胶姆糖基础剂，当作为食品用添加剂时，树脂中残留的单体和溶剂(甲苯等)构成人体健康的严重威胁。本发明以工业品萜烯树脂为原料，经树脂熔解、水蒸气吹除、氮气深度吹除和真空脱气处理后得到残余单体和溶剂总量小于25ppm(25×10-6)、按美国FDA符合食品级要求的萜烯树脂。本发明产品的特点是处理后的萜烯树脂中残留单体和溶剂含量极低，可以满足安全食用的要求。
摘要（英）：

The invention discloses a method for removing residual monomer and solvent in terpine resin, relating to the technical field of synthetic materials. Commercial product terpine resin is obtained by thepolyreaction of turpentine in toluene solution under the catalysis of catalysts such as alchlor and the like after the turpentine is primarily purified, and is widely used as a bodying agent of all sorts of cementing compounds and gum confection. When the terpine resin is used as a food additive, residual monomer and solvent (toluene and the like) in the resin are dire threats for human health. The invention takes the commercial product terpine resin as a raw material to obtain the terpine resin which meets the food grade requirements in accordance with FDA of USA and has residual monomer andsolvent total content being smaller than 25 ppm (25*10<-6>) after the treatments of resin melt, vapor blowdown, deep nitrogen blowdown and vacuum degassing. The product has the characteristics that the treated terpine resin has extremely low residual monomer and solvent content and can meet the requirement for being safely eaten.

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