Cyanic acid esters of aromatic polycarbonates

Details Cyanic acid esters of aromatic polycarbonates Cyanic acid esters of aromatic polycarbonates

1976-03-25

1977-05-31

Phillips, Delbert R.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

C-metal

260 47XA, C07C 6996

Patent

active

040269132

ABSTRACT:
A novel cyanic acid ester of an aromatic polycarbonate can be prepared by reacting an aromatic polycarbonate having one or two terminal hydroxyl groups with a cyanogen halide in an inert solvent at a temperature of -30.degree. to +65.degree. C in the presence of a base. Said cyanic acid ester and an admixture of said cyanic acid ester with other known cyanic acid ester, both of which may or may not contain a catalyst and/or other polymers are available for a coating material, a casting material, an adhesive or a molding material. When said cyanic acid ester or said admixture is cured, there is obtained a laminate, a film or a molded article. The cured products are rich in flexibility.

REFERENCES:
patent: 5162664 (1964-12-01), Brotherton et al.

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