S-triazine prepolymers and a process for their production

Details S-triazine prepolymers and a process for their production S-triazine prepolymers and a process for their production

C - Chemistry, Metallurgy

08

G

402/176, 402/320

C08G 73/06 (2006.01) C07D 251/16 (2006.01) C07D 251/34 (2006.01)

Patent

CA 1082843

s-TRIAZINE PREPOLYMERS AND A PROCESS FOR THEIR PRODUCTION ABSTRACT OF THE DISCLOSURE 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.

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