Thermostable nitrogen containing heterocyclic polymers and proce

Details Thermostable nitrogen containing heterocyclic polymers and proce Thermostable nitrogen containing heterocyclic polymers and proce

1978-05-30

1980-10-21

Lee, Lester L.

Synthetic resins or natural rubbers -- part of the class 520 ser

Synthetic resins

From boron reactant having at least one boron to hydrogen or...

528128, 528168, 525452, 528172, 528205, 525453, 528210, 528211, 525459, 528220, 528222, 525471, 528223, 528224, 525474, 528226, 528228, 525534, 528229, 528373, 525535, 528374, 528375, 525538, 528390, 528391, 525539, 525540, 528 5, 528 6, 528 7, 528 12, 528 20, 528 21, 528 22, 528 23, 528 27, 528 28, 528 30, 528 33, 528 48, 528 51, 528 52, 528 68, 528 70, 528 73, 528 79, 528 85, 528125, 528126, C08G 7306

Patent

active

042295602

ABSTRACT:
A thermostable heterocyclic polymer constituted by monomer units of the general formula ##STR1## where R.sup.1 and R.sup.2 denote an organic radical having from 2 to 1000 carbon atoms;

REFERENCES:
patent: 3657186 (1972-04-01), Craven
patent: 3674749 (1972-07-01), Craven

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