Abstract: The present invention relates to nonlinear-optically active copolymers which are composed of a chromophore acrylate, a glycidyl-functional acrylate, and a further acrylate unit, and to polyadducts produced from them by crosslinking with a carboxyl-functional polyester. The nonlinear-optical copolymers of the present invention, and the polyadducts prepared from them, possess an orientation stability in the crosslinked state, and a thermal stability, which makes them highly suitable for producing electrooptical and photonic components.

Abstract: The invention relates to chromophoric NLO-active compounds of the general formula and to a process for preparing such compounds. The compounds according to the invention can be used for preparing NLO-active polymers and thus for constructing electrooptical and photonic components.

Abstract: The benzidine derivatives of the invention are symmetrical compounds of the following structure: in which: n=1, 2 or 3; R1=H, phenyl or 1-naphthyl, R2 and R3 together form a fused benzene ring, an a- or b-fused naphthalene ring or a fused 1,2,5-thiadiazole ring.

Abstract: The nonlinear optically active copolymers according to the invention are polyadducts of at least one organic di- or polycyanate and a nonlinear optically active compound, i.e. a chromophore. These copolymers have outstanding thermal stability and are suitable for the fabrication of technically useful electro-optical and photonic components with long-term stability.

Abstract: The present invention relates to nonlinear-optically active copolymers which are composed of a chromophore acrylate, a glycidyl-functional acrylate, and a further acrylate unit, and to polyadducts produced from them by crosslinking with a carboxyl-functional polyester. The nonlinear-optical copolymers of the present invention, and the polyadducts prepared from them, possess an orientation stability in the crosslinked state, and a thermal stability, which makes them highly suitable for producing electrooptical and photonic components.

Abstract: The invention relates to nonlinear-optically active copolymers, to crosslinked NLO polymer materials produced from them and having high orientation stability, and to electrooptical and photonic components comprising these polymer materials. The copolymers of the invention are of the general formula 1 ##STR1## in which W is preferably a chromophoric group of the general formula 2: ##STR2## The chromophores employed in accordance with the invention exhibit high thermal stability and so can be processed at elevated temperatures while retaining the optical activity.