公开(公告)号：US4320036A

公开(公告)日：1982-03-16

申请号：US197479

申请日：1980-10-16

申请人： Riad H. Gobran ,  Akio Takahashi ,  Eugene P. Reilly

发明人： Riad H. Gobran ,  Akio Takahashi ,  Eugene P. Reilly

IPC分类号： C08L61/06 ,  C08L97/00 ,  C08G8/28 ,  C08H5/02

CPC分类号： C08L61/06 ,  C08L97/005

摘要： Ligno-novolak resins, either in the form of physical blends of lignin and novolak resins or as synthetically derived from the reaction of lignin, phenol and an aldehyde in the presence of an acidic catalyst, are provided. The resins, including the physical blends, are curable to thermoset, substantially completely cross-linked resins in which the lignin is interreacted and cross linked through the action of a curing agent such as hexamethylenetetramine. The resins are useful in the production of molding compounds that exhibit properties that are at least comparable to those of compounds derived from novolak resins. Moreover, excellent heat deflection temperatures and superior electrical properties are exhibited by such molding compounds.

摘要翻译： 提供木质素和酚醛清漆树脂的物理混合物形式的木质酚醛清漆树脂，或在酸性催化剂存在下合成衍生自木质素，苯酚和醛的反应。 包括物理共混物在内的树脂可固化到热固性基本上完全交联的树脂中，其中木质素被互相反应并通过固化剂如六亚甲基四胺的作用交联。 这些树脂可用于生产至少与来自酚醛清漆树脂的化合物相当的性能的模塑料。 此外，这种成型化合物表现出优异的热变形温度和优异的电性能。