Bis(dialkylmaleimide) derivative and polyetherimide for optical

Details Bis(dialkylmaleimide) derivative and polyetherimide for optical Bis(dialkylmaleimide) derivative and polyetherimide for optical

1998-12-30

2000-06-20

Hempton-Hightower, P.

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

Synthetic resins

From phenol, phenol ether, or inorganic phenolate

528170, 528310, 528322, 528332, 548462, C08G 7310

Patent

active

060779284

ABSTRACT:
A bis(disubstitutedmaleimide) derivative and a polyetherimide for optical communications and the polyetherimide formed therefrom are described. The polyetherimde has a high refractive index, so that when using such polyetherimide as a material for a core of an optical fiber, the range of the materials that can be selected for the cladding becomes wide. Also, a coating property and adhesion to a substrate are improved, thereby providing a good film forming property and thermal stability. Also, because the polyetherimide can minimize optical loss at a near infrared wavelength range, the polyetherimide is very useful as an optical material in the optical communications field adopting the light of near infrared wavelength.

REFERENCES:
patent: 3920697 (1975-11-01), Takekoshi
patent: 4087441 (1978-05-01), Lee
patent: 4197133 (1980-04-01), Zweifel et al.
patent: 5089628 (1992-02-01), Maruta
patent: 5554765 (1996-09-01), Ohta et al.

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