Synthetic resins or natural rubbers -- part of the class 520 ser – Synthetic resins – From heterocyclic reactant containing as ring atoms oxygen,...
Patent
1994-11-02
1997-12-02
Mullis, Jeffrey C.
Synthetic resins or natural rubbers -- part of the class 520 ser
Synthetic resins
From heterocyclic reactant containing as ring atoms oxygen,...
528483, 528492, 528494, C08G 6500, C08G 5914, C08G 5916
Patent
active
056937482
ABSTRACT:
A high molecular weight polyimidoylamidine having an intrinsic viscosity of from 0.25 dl/g to 0.60 dl/g and a high molecular weight polytriazine derived therefrom having an intrinsic viscosity of from 0.25 dl/g to 0.65 dl/g are disclosed. A polyimidoylamidine having a molecular weight in a wide range, including high molecular weight, can advantageously be obtained by reacting a perfluoropolyether dinitrile with ammonia and reacting the resultant reaction product with a specific amount of a perfluoropolyether dinitrile. A terminal-stabilized polytriazine and its preparation methods are also disclosed. A polytrizine, which contains a nitrile group at side chains thereof and has an intrinsic viscosity within a specific range, is particularly suitable as a precursor of a perfluoroelastomer having excellent mechanical and chemical properties.
REFERENCES:
patent: 3250807 (1966-05-01), Fritz et al.
patent: 3317484 (1967-05-01), Fritz et al.
patent: 3489727 (1970-01-01), Dorfman et al.
patent: 3660315 (1972-05-01), Hill et al.
patent: 3810874 (1974-05-01), Mitsch et al.
patent: 3845051 (1974-10-01), Zollinger
patent: 4102872 (1978-07-01), Griffin
patent: 4242498 (1980-12-01), Frosch et al.
patent: 4356291 (1982-10-01), Darling
patent: 4434106 (1984-02-01), Rosser et al.
English language abstract of Japanese Patent No. 62-120335.
English language abstract of Japanese Patent No. 50-7054.
"High Performance Perfluoroalkyl Ether Triazine Elastomers" by R.A. Korus, Industrial Engineering Chemistry, Product Research Development, 20, pp. 694-696 (1981).
"Perfluoroalkylene-Ether Triazine Elastomers", Journal of Polymer Science: Polymer Letters Edition, vol. 20, 467-472, (1982), Rosser et al.
"Polymers from Hexafluoropropylene Oxide (HFPO)" by J. T. Hill, J. Macromol. Sci.-Chem., A8(3), pp. 499-520 (1974).
"Successful Direct Fluorination of Oxygen-Containing Hydrocarbons" by J.L. Adcock et al, J. Org. Chem., vol. 40, No. 22, 1975.
P.J. Flory, "Principles of Polymer Chemistry" Cornell University Press, Ithaca, NY pp. 622-623 (1953).
"Polymer Molecular Weights, Part I", Techniques & Methods of Polymer Evaluation, vol. 4, Marcel Dekker, Inc., New York, pp. 6-7, (1975).
"Synthesis of Perfluoroalkylether Triazine Elastomers", Journal of Polymer Science, Polymer Letters Edition, vol. 18, 1980 (Rosser et al.), pp. 135-139.
Aoshima Atsushi
Fukui Hiroyuki
Ikeda Masanori
Asahi Kasei Kogyo Kabushiki Kaisha
Mullis Jeffrey C.
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