Recording/playback apparatus, recording/playback method,...

Details Recording/playback apparatus, recording/playback method,... Recording/playback apparatus, recording/playback method,...

2007-03-06

2007-03-06

Boykin, Terressa (Department: 1711)

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

Synthetic resins

Treating polymer containing material or treating a solid...

C428S690000, C558S418000

Reexamination Certificate

active

10404013

ABSTRACT:
A copolymer of benzene and substituted benzene, particularly anthracene is disclosed. The copolymer is soluble in common organic solvents like chloroform, methylene chloride, benzene, toluene, dimethylformamide, N-methyl pyrrolidinone etc unlike the parent polymer poly-p-phenylene which is highly insoluble in organic solvents. The copolymer is thermally stable up to 380° C. and environmentally stable for at least 1 year. The copolymer is capable of being thermally evaporated useful for electroluminescent devices. The copolymer shows electroluminescene and can be used in the fabrication of an organic light emitting diode device.

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Berlin, A.A., et al. “Thermal Stability of Oligomeric Arylenes” Database Chemabs Chemical Abstracts Service XP002269022 Database No. 74:3970Abstract& Vysokomolekulyarnye Soedineniya vol. 12 (1970) pp. 2351-2361.
Berlin, A.A., et al. Thermomechanical study of oligomeric arylenes XP002269023 Database Chemabs, Chemical Abstracts Service Database No. 74:32119Abstracts& Vysokomolekulyarnye Soedineniya.

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