[LASCHEWSKY ANDRE DR, RINGSDORF HELMUT PROF DR, INTERTHAL WERNER DR, LUPO DONALD DR, PRASS WERNER DR, SCHEUNEMANN UDE DR] DE Film consists of monolayer(s) of or contg. an amphiphilic cpd., which is a 4-alkoxy-, 4-acyloxy-, 4-aminoalkyl-, 4-alkylaminoalkyl-, 4-acylamino- or 4-N-alkyl-N-acyl-amino -benzaldehyde 4\'-nitrophenylhydrazone of formula (I) (where R1 = a CH3-(CH2)m-O-, CH3-(CH2)n-CO-O-, CH(CH2)nN(CH2)lH or CH3(CH2)n(CO)N(CH2)lH gp.; m = 10-25; n = 8-22; l = 0-25; in which the mols. are oriented in the same direction, parallel to one another and not centro-symmetrically).

[CZIOLLEK, Joachim, MROSE, Werner, WANDEL, Dietmar, SCHWIND, Helmut, JANAS, Wolfgang, UDE, Werner]

[Appel, Gunther, Bauer, Jacqueline, Hickel, Werner, Dr., Lupo, Donald, Dr., Prass, Werner, Dr., Scheunemann, Ude, Dr.]

[Joachim Cziollek, Werner Mrose, Dietmar Wandel, Helmut Schwind, Wolfgang Janas, Werner Ude] ,Mainz,,;,Maintal,,;,Hanau,,;,Hanau,,;,Geiselbach,,;,Darmstadt,, High strength polyester fibers comprising from 0.1 to 2.0 by weight of an incompatible, thermoplastic amorphous, polymeric additive.

[APPEL GUNTHER, BAUER JACQUELINE, HICKEL WERNER, LUPO DONALD, PRASS WERNER, SCHEUNEMANN UDE] DE

[CZIOLLEK JOACHIM, MROSE WERNER, WANDEL DIETMAR, SCHWIND HELMUT, JANAS WOLFGANG, UDE WERNER] DE;DE HMLS filaments consisting of a polyester, from 0.1 to 2.5% by weight of an incompatible, thermoplastic, amorphous, polymeric additive having a glass transition temperature of from 90 to 170° C. and a ratio of its melt viscosity to that of the polyester component of from 1:1 to 7:1, and from 0 to 5.0% by weight of conventional additives, where the polymeric additive is present in the filaments in the form of fibrils having a mean diameter of ＜=80 NM.Process for the production of these HMLS filaments by static mixing with shearing of the polyester and of the polymeric additive and, optionally, of the additives, spinning of the mixture at a spinning take-off speed of from 2500 to 4000 m/min to give spun filaments which are stretched, heat-set and wound up, where the concentration of the polymeric additive is determined as a function of the pre-specified spinning take-off speed and the desired birefringence of the spun filaments.

[Laschewsky Andre(Koblenz,DEX), Ringsdorf Helmut(Mainz,DEX), Interthal Werner(Russelsheim,DEX), Lupo Donald(Eppstein/Taunus,DEX), Prass Werner(Mainz,DEX), Sheunemann Ude(Frankfurt am Main,DEX)] Film comprising at least one unimolecular layer. A film for use in nonlinear optics comprises at least one Langmuir-Blodgett layer, the layer containing or comprising a dye of the formula ##STR1## in which R.sup.1 denotes a long-chain alkoxy, acyloxy, alkylamino or acylamino group. In particular when the film contains alternating layers of unsaturated amphiphilic compounds, it produces a stable multilayer having good monlinear optical properties and is suitable, for example, for electrooptical switches, diode laser frequency amplifiers or optical parametric amplifiers. Besides the dye indicated, the unimolecular layer can additionally contain at least one second amphiphilic compound. In this case, the unimolecular layer comprises amphiphilic compounds.

[Appel Gunther(Hattersheim,DEX), Bauer Jacqueline(Schwalbach/Taunus,DEX), Hickel Werner(Ludwigshafen,DEX), Lupo Donald(Kawagoe,JPX), Prass Werner(Mainz,DEX), Scheunemann Ude(Liederbach/Taunus,DEX)] In order to continuously produce an ultrathin, ordered layer of amphiphilic molecules on the surface of a polar liquid a directed flow of the polar liquid is produced in a duct which contains the amphiphilic molecules in dissolved or undissolved form on the surface in spread form. In the duct, a duct section having a relatively high flow rate on the surface and comprising a ramp which is arranged at the bottom of the duct and washed over by the polar liquid is provided. This is followed by a duct section having a relatively low flow rate on the surface, in which the flow is dammed up at an obstacle at a liquid level constant with time, so that an ultrathin, ordered layer of amphiphilic molecules is continuously formed in these duct sections at the polar liquid/air interface by compression of the flow. The washed over ramp is movable.

[CZIOLLEK JOACHIM, MROSE WERNER, WANDEL DIETMAR, SCHWIND HELMUT, JANAS WOLFGANG, UDE WERNER] DE;DE High strength polyester fibers comprising from 0.1 to 2.0 by weight of an incompatible, thermoplastic amorphous, polymeric additive.

[CZIOLLEK JOACHIM, MROSE WERNER, WANDEL DIETMAR, SCHWIND HELMUT, JANAS WOLFGANG, UDE WERNER] ; High strength polyester fibers comprising from 0.1 to 2.0 by weight of an incompatible, thermoplastic amorphous, polymeric additive.