Abstract: The present invention relates to an antenna (1), especially a vehicle mounted antenna for use in mobile telephony. In order to achieve a compact, especially flat and short construction for the antenna, as configured, a radiating open hollow cavity resonator with a specially designated set of wide band slots (7,8) is arranged on a nonconductive board with multiple conductive areas (4, 5, and 6) situated about the slots (7,8).

Abstract: A method for the production of a carbon or a ceramic component based on carbon, using a cellulose-containing semi-finished molded piece which is pyrolyzed. According to the invention, homogeneous large-size ceramic components may be produced, whereby a cellulose-containing, semi-finished molded piece containing fibers, chips or strands of homogeneous density distribution and homogeneous structure is used as semi-finished molded piece and is pyrolyzed in non-oxidizing gas atmospheres.

Abstract: A method of producing an antenna structure for an automotive vehicle comprising the steps of providing a substrate element and arranging the antenna structure on one surface of the substrate element.

Abstract: An antenna for receiving electromagnetic waves, the antenna including a resonator having an electrically conductive bottom, an electrically conductive top, and an electrically nonconductive section between an electrically conductive side wall and the electrically conductive top. The electrically conductive bottom being in electrical contact with the electrically conductive side wall, which extends from the electrically conductive bottom to a grounding surface. The resonator having a dielectric disposed in an interior volume.

Abstract: The invention related to an antenna (1), especially a vehicle antenna for use in mobile telephony. In order to achieve a compact, especially flat and short construction, said antenna is configured as a radiating open hollow cavity resonator with a specially designated wide band slot (7,8).

Abstract: An antenna, especially for use with mobile radios, that is mounted in an opening of a motor vehicle. The antenna includes at least one radiator with connecting line and the radiator is mounted in the opening behind a nontransparent, nonconductive covering. In one embodiment the radiator is configured as a monopole with matched balancing antennae that are strip conductors laid out on a printed circuit board attached to a ventilation structure mounted in an opening behind a covering nonconductive bumper.

Abstract: In an antenna having at least one vertical radiator, preferably a vehicle mobile radiotelephone antenna, the at least one vertical radiator is connected to the ground on one end and to a vertical conductor fed against the ground on the other end by means of an impedance transforming device having an electrical length which is approximately one fourth the mean operating wavelength or an uneven multiple thereof. Said structure makes it possible for the at least one vertical radiator to have a uniform current occupancy over its entire length. By cooperating with the vertical conductor fed in a co-radiating manner, said occupancy exhibits high radiation power comparable to that of a &lgr;/4 monopole antenna despite the fact that the at least one vertical radiator has a smaller length which is approximately {fraction (1/10)} of the mean operating wavelength. The invention also describes advantageous embodiments or configurations of said antenna and practical arrangements of said antenna in vehicles.

Abstract: An antenna for receiving electromagnetic waves, the antenna including a resonator having an electrically conductive bottom, an electrically conductive top, and an electrically nonconductive section between an electrically conductive side wall and the electrically conductive top. The electrically conductive bottom being in electrical contact with the electrically conductive side wall, which extends from the electrically conductive bottom to a grounding surface. The resonator having a dielectric disposed in an interior volume.

Abstract: Writing and metering device with an ink supply chamber (22), an ink guide with a capillary ink regulator (20) and with a ventilation channel with a semi-permeable seal (30), a first non-capillary space (28) and a second non-capillary space (33). The second non-caplliary space (33) is connected to the ink supply chamber (22) by at least one capillary (32a and/or 32b). To reduce ink losses a labyrinth vent (26) can additionally be provided in the ventilation channel.

Abstract: Writing and metering device with an ink supply chamber (22), an ink guide with a capillary ink regulator (20) and with a ventilation channel with a semi-permeable seal (30), a first non-capillary space (28) and a second non-capillary space (33). The second non-capillary space (33) is connected to the ink supply chamber (22) by at least one capillary (32a and/or 32b). To reduce ink losses a labyrinth vent (26) can additionally be provided in the ventilation channel.

Abstract: A writing device with a housing in which at least two writing elements are arranged and of which one is a lead insert. In order to facilitate the filling of a lead chamber of the lead insert an axially aligned fixed cylinder tube in a back housing part slides into an open top end of the lead chamber. An open top end of the cylinder tube therefore can be filled with lead anytime from a top in a housed as well as in a writing position of the lead insert by opening a top end of the housing.

Abstract: Phosophonomethylated chitosans containing repeating units of formula ##STR1## wherein R.sub.1 is hydrogen or a radical of formula ##STR2## R.sub.2 is a radical of formula (1a), X.sub.1 and X.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.5 alkyl or an alkali metal ion or ammonium ion and n is 50 to 4000, have versatile utilities as sequestrants, stabilizers for bleaching agents as well as humectants in cosmetic compositions.

Abstract: Phosophonomethylated chitosans containing repeating units of formula ##STR1## wherein R.sub.1 is hydrogen or a radical of formula ##STR2## R.sub.2 is a radical of formula (1a), X.sub.1 and X.sub.2 are each independently of the other hydrogen, C.sub.1 -C.sub.5 alkyl or an alkali metal ion or ammonium ion and n is 50 to 4000, have versatile utilities as sequestrants, stabilizers for bleaching agents as well as humectants in cosmetic compositions.

Abstract: The invention relates to N-cyanomethylated chitosans of formula (1) and to the hydrolysates thereof of formula (2), as well as to processes for the preparation of these compounds. The cyanomethylated chitosans, in particular the hydrolysates corresponding to formula (2), find versatile utility as separating membranes, complexing agents, encrustation inhibitors, stabilisers for bleaching liquors, moisture retainers in cosmetic compositions, thickeners and repellents.

Abstract: Described is a process for dyeing fibrous materials made of or containing wool with anionic dyes, which comprises dyeing these materials in the presence of a wool preservative comprising at least one compound of the formulaR--O--CH.sub.2 --CH(OH)--CH.sub.2 --Y (1),where the variables are each as defined in the claims. The process makes available rub-fast level dyeings without deterioration in the quality of the wool.

Abstract: The present invention relates to the use of an acrylamide homopolymer or copolymer in an amount of <0.04 g per liter of dye liquor as anticrease agent in exhaust dyeing processes.

Abstract: A process for dyeing wool-containing fibre materials with anionic dyes, which comprises dyeing said materials in the presence of a wool protective agent which is a reaction product of an epihalohydrin and an amine of formulaR--NH.sub.2 (1),wherein R is as defined in the claims. Rubfast, level dyeings without impairment of wool quality are obtainable by the process.

Abstract: Lubricant-containing aqueous preparations of copolymers are obtainable by polymerisation of(A) 70 to 95% by weight of a monomer mixture of(a) 20 to 90% by weight of an ethylenically unsaturated carboxylic acid, in particular of a monocarboxylic acid, or of a corresponding amide,(b) 10 to 80% by weight of a sulfonated, aliphatic or aromatic monovinyl compound, and(c) 0 to 25% by weight of N-vinylpyrrolidone or of an N-vinyl-substituted amide of a saturated aliphatic monocarboxylic acid in the presence of(B) 5 to 30% by weight of a polyol whose hydroxyl groups have been esterified with a fatty acid of 8 to 26 carbon atoms, the sum totals of (A) and (B) on the one hand and (a), (b) and (c) on the other each adding up to 100%.

Abstract: A method is described for dyeing fibrous materials made of or containing wool with anionic dyes, which comprises dyeing these materials in the presence of a wool preservative comprising at least one compound of the formulaR--CH.sub.2 --CH(OH)--CH.sub.2 --Y (I),where the variables are as defined in the claims. Rub-fast level dyeings are obtainable without deterioration in the quality of the wool.

Abstract: Novel N-alkenoyl enamide of the formula ##STR1## wherein R.sub.1 is hydrogen or methyl,R.sub.2 is hydrogen, C.sub.1 -C.sub.4 alkyl or halogen, andR.sub.3 and R.sub.4 are each independently of the other C.sub.1 -C.sub.4 alkanolyl, C.sub.1 -C.sub.18 alkoxycarbonyl, benzoyl, phenyl, cyano or carbamoyl, and R.sub.4 can also be hydrogen,are used for photocrosslinkable compositions suitable for use in photographic solutions, as UV absorbers and as textile finishing agents.