发明名称 S-Triazine prepolymers and a process for their production
摘要 S-Triazine prepolymers with aromatic cyanate groups are obtained by condensation of aromatic di- or polyhydroxy compounds with 0.01 to 0.5 mol of 4,6-dichloro-s-triazine per one hydroxy group. Subsequently the condensation products are reacted with cyanogen halide in the presence of a base. s-Triazine prepolymers may be polymerized to form hard plastics with resistance to high temperature.
申请公布号 US4042567(A) 申请公布日期 1977.08.16
申请号 US19750635589 申请日期 1975.11.28
申请人 BAYER AKTIENGESELLSCHAFT 发明人 SUNDERMANN, RUDOLF
分类号 C08G73/00;C07D251/16;C07D251/34;C08G73/06;(IPC1-7):C08G65/40 主分类号 C08G73/00
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