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

1975-11-28

1977-08-16

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 47R, 260 61, C08G 6540

Patent

active

040425673

ABSTRACT:
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.

REFERENCES:
patent: 2481156 (1949-09-01), Schaefer
patent: 3108029 (1963-10-01), Wohnsiedler et al.
patent: 3654192 (1972-04-01), Vogel
patent: 3960783 (1976-06-01), Seltzer et al.

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