Halogen-containing cyanate ester, process for producing the same and thermosetting resin composition containing the same
申请人:SUMITOMO CHEMICAL COMPANY LIMITED
公开号:EP0739879A1
公开(公告)日:1996-10-30
The present invention provides a halogen-containing cyanate ester obtained by cyanating a phenol represented by the following general formula (1):
wherein A represents a hydrocarbon group having 1 to 6 carbon atoms; B represents a halogen atom; X represents a single bond, a hydrocarbon group having 1 to 20 carbon atoms, a carbonyl group, a sulfon group, a divalent sulfur atom or an oxygen atom; i represents an integer of 0 to 3; j represents an integer of 1 to 4; and n is 0 or 1 with a cyanogen halide in the presence of and a base, wherein a value obtained by dividing a maximum value of an absorbance at a wave number of 1600 to 1740 cm-1 by a maximum value of an absorbance at a wave number of 2100 to 2300 cm-1 is not more than 0.2, the absorbance of a 1.0 % (weight by volume) chloroform solution of the halogen-containing cyanate esters being measured at a cell length of 1.0 mm using an infrared spectrophotometer.
The present invention also provide a process for producing the same, and a thermosetting resin containing the same.
本发明提供了一种含卤素的氰酸酯,它是通过氰化由以下通式(1)代表的苯酚而得到的:
其中 A 代表具有 1 至 6 个碳原子的烃基;B 代表卤素原子;X 代表单键、具有 1 至 20 个碳原子的烃基、羰基、磺基、二价硫原子或氧原子;i 代表 0 至 3 的整数;j 代表 1 至 4 的整数;且 n 为 0 或 1,在有氰基卤化物和碱存在的情况下,其中波数为 1600 至 1740 cm-1 的吸光度最大值除以波数为 2100 至 2300 cm-1 的吸光度最大值所得的值不大于 0。2,该吸光度是使用红外分光光度计在 1.0 mm 的池长下测量含卤氰酸酯的 1.0 %(重量体积比)氯仿溶液的吸光度。
本发明还提供了生产上述物质的工艺以及含有上述物质的热固性树脂。