Abstract: There is described a support web for roofing membranes which comprises a spunbonded made of polyester filaments. The spunbonded has a basis weight of from 50 to 100 g/m.sup.2 coupled with a filament denier of from 1 to 8 dtex and has been consolidated with a fusible binder. This produces a high tear propagation resistance and nail pullout strength and also good dimensional stability at high temperatures. The spunbonded support web is therefore particularly suitable for bitumenized roofing membranes.

Abstract: A laminate which, when used as a carrier web for roofing and sealing sheets, shows good flammability properties combined with improved mechanical properties and which comprises a layer of synthetic fibers and a layer of mineral fibers is obtained by needling two preconsolidated fiber webs, of which one comprises synthetic fibers and the other mineral fibers. The needling produces a strong positive join of the two webs, as a result of which the tendency for the two layers to delaminate under extreme thermomechanical conditions is avoided.

Abstract: A support web is described for roof foundation webs which comprises a spunbonded web of polyester filaments. The spunbonded web has a basis weight of 50 to 100 g/m.sup.2 and a filament denier of 1 to 8 dtex. It has been thermomechanically preconsolidated by means of a smooth calender and end-consolidated by means of a binder. This produces a high tear propagation resistance and nail removal resistance and good dimensional stability at high temperatures. The spunbonded web is therefore particularly suitable for use as a support web for bituminized roof foundation webs.

Abstract: A magnetic device that may be used for storing and dispensing paper clips, and the like, and which may also be used as an amusement or novelty product. A plastic housing houses a bar magnet with the poles arranged vertically. The bar magnet is positioned near but spaced from the upper surface of the housing by a spacer disc made of magnetizable material. The spacer disc has a central opening, above which opening, on the housing's upper surface, magnetic lines of induction are produced that tend to orient a paper clip, or the like, vertically on end and which also allow for prolonged gyratory motion of the paper clip about the end. A plastic, transparent casing may be provided housing iron powder or tiny magnet bits of different shape, which casing is slidably and rotatably mounted with respect to the upper surface of the housing, so that, as the casing is slid or rotated, different patterns are formed in kaleidoscope-fashion.

Abstract: A process for the preparation of cefodizime of the formula ##STR1## wherein (a) a compound of the formula II (ATS) ##STR2## wherein R.sub.1 represents hydrogen or an aminoprotective group and A represents a hydrogen atom or one equivalent of an alkali metal or alkaline earth metal, of ammonium or of an organic nitrogen base, is first reacted with a compound of the formula IIIR--SO.sub.2 Halwherein R represents an optionally substituted alkyl, aryl or aralkyl radical and Hal represents a halogen atom, in an organic solvent and, if appropriate, in the presence of a base,(b) a compound of the formula I (TACS) ##STR3## in which A has the above meaning, is reacted with a silylating agent in an organic solvent and, if appropriate, in the presence of a base, and(c) the two products formed in (a) and (b) are reacted in their reaction solutions, and any protective group R.sub.1 present in the end product of the formula I is eliminated.

Abstract: Laminates, which are composed of a preconsolidated synthetic fiber web and a preconsolidated mineral fiber web, which are bonded to each other by needling, are improved in respect of their dimensional stability, in particular in the transverse direction, when the preconsolidated mineral fiber wet contains reinforcing yarns of a mineral material and extending in the longitudinal direction.They are preferably used as carrier web for roofing and sealing webs.

Abstract: The present invention is directed to a process for the production of matte, non-blocking, thin-walled molded articles, films or tubes from polyurethane elastomers prepared from high molecular weight polyols which contain dispersed polyadducts based on polyisocyanate polyaddition products. The use of these high molecular weight polyols contained dispersed polyadducts allows for the preparation of thin-walled, molded articles which have reduced surface tackiness. The present invention is additionally directed to the molded articles produced by this process and to their use for forming polyurethane foam composites.

Abstract: A flexible printed circuit is attached to the housing of a hearing aid by at least one user-operated control element. The printed circuit further has a bending zone which is devoid of components, and component zones on which components are mounted.

Abstract: An apparatus for producing a spunbond by pneumatic take-off and laying of melt-spun filaments comprises a superatmospheric pressure chamber which is connected to the melt spinneret in a gas-tight manner and has discharge orifices for the filaments. Said superatmospheric pressure chamber tapers weekly conically into a drawing cell. The aperture angle of the weakly conical superatmospheric pressure chamber is less than 7.degree.. The filaments are spun in the form of a linear curtain into the interior of the superatmospheric pressure chamber which is just as wide as the curtain. One side of the conical portion and of the drawing cell is moveable and, at the start of the melt spinning, can be moved away from the other wall, so that the start-up of spinning is facilitated.

Abstract: An overhand sewing machine for the sewing of innersoles to the shanks of shoes comprises two driven conveying disks, an inner conveying disk in contact with the shank material, and an outer conveying disk in contact with the innersole material, the outer disk being displaceable with respect to the inner disk in order to be pressured by spring-loading against the inner disk, and to be capable of moving away against the spring-loading from the inner disk, as required for the insertion of the material to be sewn into the overhand sewing machine.

Abstract: This disclosure relates to a class of novel 6-substituted-5-phenyltetrazolo[1,5-a][1,2,4]triazole [1,5-c]pyrimidines and to pharmaceutical compositions containing such compounds. The compounds and compositions disclosed are useful as renal vasodilators, diuretics and/or anti-hypertensive agents for the treatment of hypertensive disorders in humans.

Abstract: A fur sewing machine having a blower device connected with a source of compressed air which deflects the fur hairs of the material to be sewn during sewing. The connecting line between the source of the compressed air and the blower contains a heating device which heats the compressed air. A mechanism for controlling the air flow and the heater is also provided.

Abstract: The instant invention is directed to thermoplastic chemical material comprising:(A) from 60 to 97%, by weight, based on (A)+(B), of a thermoplastic polyurethane; and(B) from 40 to 3%, by weight, based on (A)+(B), of a fibrous reinforcing material; and(C) from 36 to 3 parts, by weight, based on 100 parts of (A)+(B), of a polar polymer.The instant invention is also directed to a process for the production of the thermoplastic chemical materials.

Abstract: This invention relates to compounds having the formula ##STR1## wherein R.sub.1 represents hydrogen, halogen or alkoxy, R.sub.2 and R.sub.3 are hydrogen, alkanoyl or alkyl each being the same or different, R.sub.4 represents alkanoyloxyalkyl, hydroxyalkyl, hydrogen, alkyl, alkoxyalkyl, alkenyl, alkynyl, adamantanecarbonyloxyalkyl, bromoalkyl or benzoyloxyalkyl.

Abstract: In a process of safely disposing of waste materials which are solid or contained in aqueous liquids, wherein the waste material is treated with alkaline substances and a solid product is formed, the waste materials which are solid or dissolved or suspended in aqueous liquids are mixed in accordance with the invention with brown coal ash and, if desired, with water, to obtain a homogeneous mixture having the consistency of a pulp or freely flowable slurry and the proportions of the mixture are so selected that it hardens to a material which is virtually impermeable to water. Such materials can be used to dispose of waste materials, such as waste acids, and to seal underground or surface dumps.

Abstract: This invention relates to compounds having the formula ##STR1## wherein R represents hydrogen, alkyl containing one to four carbon atoms, or alkoxyalkyl, alkenyl or alkynyl containing two to four carbon atoms, R.sub.1 represents hydrogen or 1-oxoalkyl containing one to two carbon atoms and wherein X and Y are carbon or nitrogen with the proviso that one of X and Y must be nitrogen and the other carbon and which are useful diuretic agents.

Abstract: The present invention relates to low-halogen-content, thermoplastically-processible polyurethane elastomers (TPU), to which are added antimony trioxide, chlorinated and/or brominated aromatic compounds having a specified halogen content, aluminum hydroxide having a specified particle size, phosphoric acid tris-ester, and, optionally, quaternary tetra-alkyl ammonium salts. These additives impart an unexpectedly favorable combination of electrical surface properties, flameproof behavior and abrasion resistance.

Abstract: The invention is directed to a process extruding or melt roll calendering thermoplastic polyurethanes wherein the polyurethanes used are synthesized from p1 (a) one or more relatively high molecular weight substantially linear polyols having molecular weights in the range from 400 to 10,000(b) diphenyl methane and/or hexamethylene diisocyanate and(c) a mixture of 85 to 99% by weight of 1,4-butane diol and 1 to 15% by weight of at least one co-extender selected from the group consisting of ethylene glycol, diethylene glycol, triethylene glycol, diethylene 1,2-propane diol, 1,3-butane diol, 1,6-hexane diol, 2-ethyl-1,3-hexane diol, 2,2-dimethyl-1,3-propane diol, 1,4-bis-hydroxymethyl cyclohexane, hydroquinone-bis-hydroxyethyl ether, and mixtures thereof, the equivalent ratio of NCO groups in component (B) to the Zerewitinoff-active hydrogen atoms in components (A) and (C) being from 0.9:1 to 1.2:1 and the molar ratio of component (A) to (C) being from 1:20 to 5:1.

Abstract: Beaded carbon black is disclosed with a water content of 30 to 80% by weight which are used for coloring of paper and concrete. The product has the advantage of dust-free handling and a higher jet black color compared to conventional carbon black powder.

Abstract: The instant invention is directed to a continuous process for the production of thermoplastic materials, comprising:I. introducing 4 to 65 parts by weight of thermoplastic polymer into an extruder at a first inlet, wherein the temperature within said extruder is such that said thermoplastic polymer melts;II. adding to said thermoplastic polymer through a second inlet 35 to 96 parts by weight of the following polyurethane forming components, such that the total parts by weight of thermoplastic polymer and polyurethane components is 100:(A) organic polyisocyanate; and(B) chain lengthening agent with a molecular weight below 400 containing a hydroxyl group and/or amine group;wherein the ratio of isocyanate groups of component (A) to Zerewitinoff active groups of component (B) is in the range of from 0.90:1 to 1.2:1; andIII. discharging from the extruder the product of the process when the reaction of said polyurethane components (A) and (B) is substantially complete.