Low molecular weight aromatic polymers with biphenylene end grou

Details Low molecular weight aromatic polymers with biphenylene end grou Low molecular weight aromatic polymers with biphenylene end grou

1981-08-03

1985-03-26

Lee, Lester L.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

525420, 525435, 525437, 525471, 525521, 525535, 525540, 528126, 528128, 528173, 528176, 528179, 528220, 528225, 528227, 528229, 528272, 528274, 528335, 528337, 528342, 528391, C08G 1200

Patent

active

045074623

ABSTRACT:
Biphenylene end-capped low molecular weight thermally stable aromatic polymers and the process for their preparation. The invention is further directed to crosslinked biphenylene end-capped aromatic polymers and to the process for their preparation. The process for preparing the biphenylene end-capped low molecular weight thermally stable aromatic polymers comprises carrying out a misbalanced polymerization reaction of a suitable aromatic aminoketone compound and a suitable aromatic ketomethylene compound and thereafter adding a monofunctional biphenylene compound.

REFERENCES:
patent: 3734818 (1973-05-01), Stille
patent: 3852244 (1974-12-01), Heath et al.
patent: 4000187 (1976-12-01), Stille
patent: 4196277 (1980-04-01), Jones et al.
patent: 4304898 (1981-12-01), Rabilloud et al.
patent: 4375536 (1983-03-01), Mark et al.

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