High molecular weight polytriazines of soluble polymeric N-cyano

Details High molecular weight polytriazines of soluble polymeric N-cyano High molecular weight polytriazines of soluble polymeric N-cyano

1976-07-22

1977-11-22

Lee, Lester L.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 49, 260 61, C08G 7308

Patent

active

040595676

ABSTRACT:
Polyfunctional aminophenols or amino(alkyl)phenols are converted with cyano halide in the presence of a base at temperatures below 65.degree. C into the corresponding aromatic cyanic acid esters containing cyanamide groups and thereafter at 65.degree. C to 150.degree. C into prepolymers which are soluble in organic solvents and highly stable in storage. The prepolymers may be converted into high molecular weight polymers of triazine structure by heating to 150.degree. C to 350.degree. C. The end products are insoluble in solvents and are infusible. The prepolymers may be used for the production coatings, shaped articles or laminates.

REFERENCES:
patent: 3502617 (1970-03-01), Schminke et al.
patent: 3694410 (1972-09-01), Oehmke
patent: 3738962 (1973-06-01), Loudas et al.
patent: 3960783 (1976-01-01), Seltzer et al.

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