Waveguide systems or structures or parts thereof, containing polycyanate copolymers prepared from polyfunctional cyanates and fluorinated monocyanates

US6716958B1 · kind B1 · utility

Assignee

• Pirelli Cavi e Sistemi S.p.A. · IT

Inventors

• Monika Bauer · Seligenstadt, DE
• Jörg Bauer · Weingarten, DE
• Christian Dreyer · Idar-Oberstein, DE
• Norbert Keil · Berlin, DE
• Crispin Zawadzki · Berlin, DE

Key dates

• Filing date: May 6, 2002
• Grant date: Apr 6, 2004
• Expiry date: May 6, 2022

Classification

• Technology area (CPC G): Physics
• CPC primary: G02B1/04
• WIPO field: Macromolecular chemistry, polymers
• WIPO sector: Chemistry

Abstract

The present invention is directed to wave guide systems or structures or parts thereof, characterized in that they consist of or comprise a resin composed of at least one polycyanate copolymer, obtainable by copolymerization of at least one specific difunctional cyanate with at least one monocyanate of the formula N≡—C—O—R, wherein R is a straight or branched non-aromatic hydrocarbon radical or a non-aromatic hydrocarbon radical comprising a cyclic structure, the radical having the formula C(R′)2—CFR″2 wherein each R′ is, independently from the other, hydrogen or fluorine or an optionally substituted, preferably fluorinated alkyl or alkenyl group, and each of R″ may independently be defined as R′ or may have an arylic structure.