摘要:
Fluorinated naphthalene derivatives of the formula (I) R1(—A1—M1)a(—A2—M2)b—B—(—M3—A3)c—(M4—A4)d—R2 (I) where B is having the meaning and R1(—A1—M1)a(—A2—M2) and (—M3—A3)(M4—A4)R2 are mesogenic radicals, are suitable as components of liquid-crystal mixtures, in particular ferroelectric liquid-crystal mixtures.
摘要:
A ferroelectric liquid crystal mixture, especially useful for operation in the &tgr;Vmin−mode, comprises a 5-Arylindane derivative of the formula (I), wherein Y is CH, CF or N and R1(—A1—M1)a(—A2—M2)b—, (M3—A3—)cR2 are mesogenic groups.
摘要:
The invention relates to novel mimetics of the tetrasaccharides sialyl-Lewis-X and sialyl-Lewis-A having an improved action as inhibitors of cell adhesion, to a process for the preparation of these compounds and to their use as pharmacological active compounds and diagnostic agents.
摘要:
A vibration pickup has a pressure sleeve mountable directly or indirectly on a component causing vibrations, a spring, a sensor element which is held radially outwardly on the pressure sleeve with an axial tensioning by the spring and is electrically contactable, a wedge element provided between an inner periphery of the spring and an outer wall of the pressure sleeve, the wedge element being introduced axially with its wedge-shaped tipped side and radially clamps the spring in an end position and also holds components with the sensor element under an axial tensioning.
摘要:
5-Fluorophenanthridine derivatives and their use in liquid-crystalline mixtures 6-Fluorophenanthridine derivatives of the formula (I) ##STR1## in which G is --CF.dbd.N--,E.sup.1, E.sup.2, E.sup.3, E.sup.4, E.sup.5 and E.sup.6 are identical or different and are --CH--, --CF-- or --N--and R.sup.1 (--A.sup.1 --M.sup.1).sub.a (--A.sup.2 --M.sup.2).sub.b, (M.sup.3 --A.sup.3 --).sub.c (M.sup.4 --A.sup.4 --).sub.d R.sup.2 denote mesogenic radicalsare suitable as components for liquid-crystalline mixtures, especially ferroelectric mixtures.
摘要:
A filter cartridge has a frame made of tough material, which sealingly surrounds an accordion fold pack on its circumferential side. The frame is made of assemblable, plate-shaped frame elements and has, on the circumferential side along the lower and/or upper edge of the frame, a tongue, the tongue being insertable in a latticed holder having a U-shaped profile. A viscous joining compound is used to affix the tongue in place. The tongue is formed by strip-shaped tongue elements, each tongue element being joined to a frame element, wherein the adjacent ends of the tongue elements are sealingly fastened to each other by connecting corner pieces.
摘要:
A colour photographic silver halide material having a support and at least one silver halide emulsion layer, which contains a sensitiser of the formula (I), a stabiliser of the formula (II) and a stabiliser of the formula (III) ##STR1## in which R.sub.1 to R.sub.14, X.sub.1, X.sub.2, X.sup..crclbar., L.sub.1 to L.sub.5 and n have the meaning stated in the description, is distinguished by improved storage stability.
摘要:
In a pressure sensor, the force is introduced onto a piezoresistive measuring element via a diaphragm and a punch. Since no exact mechanical adjustment between the diaphragm and the measuring element is necessary, various relatively inexpensive forms of diaphragm with different measuring sensitivity can be used. The punch and the piezoresistive measuring element can be pushed through an opening in the housing and pressed onto the diaphragm so as to provide an interlocking frictional connection between the punch and the measuring element.
摘要:
In the production of highly concentrated pastes of .alpha.-sulfofatty acid alkyl ester alkali metal salts by reaction of fatty acid alkyl esters with gaseous SO.sub.3, subsequent after-reaction in liquid phase and neutralization with aqueous alkali hydroxide solutions, the sulfonation product and aqueous alkali metal hydroxide solution are introduced during neutralization into an aqueous phase initially containing at least 55% by weight washing-active substance at a pH value in the range from 2 to 8 and washing-active substance contents of 60 to 70% by weight are established.
摘要:
A mouth and tooth care preparation consists of tensides, polishing agents, aromatizing agents as well as additional usual additives which are formulated in a binding agent or a mixture of binding agents consisting of water-soluble or water-swellable, physiologically acceptable film-forming agents. The mixture is formulated into a film which is pre-segmented into dosage units.