Inert rosin esters and process for preparing same
    2.
    发明公开
    Inert rosin esters and process for preparing same 失效
    惰性松香酯和它们的制备的方法。

    公开(公告)号:EP0080557A1

    公开(公告)日:1983-06-08

    申请号:EP82106997.8

    申请日:1982-08-03

    IPC分类号: C07C69/753 C07C67/08

    CPC分类号: C09F1/04

    摘要: Inert esters of rosin and a primary polyhydric alcohol, such as rosin-pentaerythritol esters, are modified by reacting commercially available rosin esters which contain residual hydroxyl groups with a lower aliphatic carboxylic acid or anhydride, for example, acetic anhydride or propionic anhydride, to substantially completely esterify the residual hydroxyl groups. The resulting inert, completely esterified rosin esters, when formulated with non-polar natural rubber or SBR in adhesive systems, results in a time-stable tack value not available with conventional rosin esters.