Iminoimidazolidinedione and parabanic acid polymers containing i

Details Iminoimidazolidinedione and parabanic acid polymers containing i Iminoimidazolidinedione and parabanic acid polymers containing i

1973-10-26

1976-01-20

Welsh, M. J.

Chemistry of carbon compounds

Miscellaneous organic carbon compounds

260 775R, 260 775C, C08G 1800

Patent

active

039337588

ABSTRACT:
Novel iminoimidazolidinedione polymers containing imide groups (hereinafter PIPA-IM) are prepared from mixtures of dianhydrides, hydrogen cyanide and diisocyanates in an appropriate solvent and with an appropriate catalyst. The cyanide ion is an effective catalyst for all of the reactions involved. Hydrolysis of these polymers produces novel parabanic acid polymers containing imide groups (hereinafter PPA-IM).

REFERENCES:
patent: 3299101 (1967-01-01), Tocker
patent: 3356648 (1967-12-01), Rogers
patent: 3376260 (1968-04-01), Fritz
patent: 3591562 (1971-07-01), Patton
patent: 3609113 (1971-09-01), Schade et al.
patent: 3635905 (1972-01-01), Patton
patent: 3661859 (1972-05-01), Patton
patent: 3684773 (1972-08-01), Patton
patent: 3705874 (1972-12-01), Merten et al.
Oku et al., Die Makromolecular Chemie, 78, 1964, pp. 186-193.

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