Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – Mixing of two or more solid polymers; mixing of solid...
Patent
1977-11-02
1979-08-07
Welsh, Maurice J.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
Mixing of two or more solid polymers; mixing of solid...
528 51, 528 52, 528 53, 528 57, 528 73, 528 44, C08G 1800
Patent
active
RE0300675
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.
patent: 3887507 (1975-06-01), Reese et al.
patent: 4018743 (1977-04-01), Kraft et al.
Oda et al., J. Chem Soc Japan, Ind. Chem Sect., 64, No. 4, 1961, pp. 741-742.
Oku et al., Die Makromolecular Chemie, 78, 1964, pp. 186-193.
Exxon Research & Engineering Co.
Kurtzman M. B.
Welsh Maurice J.
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