Process for the preparation of crystallization-resistant disproportionated rosin
    1.
    发明授权
    Process for the preparation of crystallization-resistant disproportionated rosin 失效
    制备耐结晶消解罗素的方法

    公开(公告)号:US3872073A

    公开(公告)日:1975-03-18

    申请号:US36261873

    申请日:1973-05-21

    申请人: ARIZONA CHEM

    IPC分类号: C09F1/00 C09F1/04 C09F5/00

    CPC分类号: C09F1/04

    摘要: There is provided a crystallization-resistant disproportionated rosin prepared by heating a rosin material at temperatures between 250*C. and 275*C. in the presence of from 0.3 percent to 1 percent of specific phenol sulfides, hereinafter defined, for a time sufficient to increase the 9,10-secode-hydroabietic acid content to at least about 5 percent.

    摘要翻译: 提供了一种耐结晶歧化松香,其通过在250℃至275℃的温度下,在0.3%至1%的特定苯酚硫化物的存在下加热松香材料制备,在下文中定义,时间足以 将9,10-节 - 加氢松香酸含量增加至至少约5%。