Abstract: A process for the coating of glass microspheres with an aluminium hydroxide, which involves the hydrothermal treatment of a suspension of complexed Al3+-ions with glass microspheres. The aluminium hydroxide coated glass microspheres can be applied in the production of light weight glass-reinforced plastic materials, e.g., for use in mass transportation.

Abstract: A process for preparing pyridinecarboxylic esters of the general formula: wherein R1 is hydrogen, a C1-6-alkyl group, a C1-4-alkoxycarbonyl group, a C1-4-alkoxymethyl group or a fluorinated C1-6-alkyl group, R2 is a C1-4-alkyl group and X is chlorine or bromine. The pyridinecarboxylic esters are obtained by reacing the corresponding 2,3-dihalopyridines with carbon monoxide and a C1-4-alkanol in the presence of a weak base and a complex of palladium with a bis(diphenylphosphine). Pyridinecarboxylic esters are intermediates for preparing herbicides and drugs against fibrotic diseases.

Abstract: A cationically polymerizable pigmented composition comprising (A) a cationically polymerizable binder component containing at least one resin or compound selected from the group consisting of (A-1) a cationically polymerizable acrylic resin consisting of a copolymer of (a) a (meth) acrylic ester monomer having C.sub.6-31 aliphatic hydrocarbon group, (b) a polymerizable unsaturated monomer containing a polymerizable unsaturated group and at least one cationically polymerizable moiety selected from the group consisting of an epoxy group and an oxetane ring, and optionally (c) other polymerizable unsaturated monomer, and (A-2) a fatty acid-modified epoxy compound containing C.sub.6-32 aliphatic hydrocarbon group and epoxy group, (B) a cationic polymerization initiator initiating polymerization by irradiation or heating, and (C) a color pigment.

Abstract: A support device comprising two superposed platforms connected by two electrically controlled jacks of adjustable length and by an upright of constant length forming on these platforms the apices of triangles, device characterized in that the jacks and the upright are rigidly fixed on one of the platforms, so-called upper platform, by an articulation assembly comprising a universal joint and a pivot pin, each pivot pin being located parallel to the opposite side of the triangle defined on this platform.

Abstract: A process for preparing pyridinecarboxylic esters of the general formula: ##STR1## wherein R.sup.1 is hydrogen, a C.sub.1 -C.sub.6 -alkyl group, a C.sub.1 -C.sub.4 -alkoxycarbonyl group or a C.sub.1 -C.sub.4 -alkoxymethyl group, R.sup.2 is a C.sub.1 -C.sub.4 -alkyl group and X is chlorine or bromine. The pyridinecarboxylic esters are obtained by reacting the corresponding 2,3-dihalopyridines with carbon monoxide and a C.sub.1 -C.sub.4 -alkanol in the presence of a weak base and a complex of palladium with a bis(diphenylphosphine). Pyridinecarboxylic esters are intermediates for preparing herbicides and drugs against fibrotic diseases.

Abstract: N-[5-(Diphenylphosphinoylmethyl)-4-(4-fluorophenyl)-6-isopropylpyrimidin-2- yl]-N-methylmethanesulfonamide of the formula: ##STR1## is prepared by reaction of [4-(4-fluorophenyl)-6-isopropyl-2-(N-methyl-N-methylsulfonylamino)pyrimidi n-5-yl]methanol with chlorodiphenylphosphine. Compound I is an intermediate in the synthesis of pharmaceutically active compounds, in particular HMG--Co A. reductase inhibitors.

Abstract: A solid propellant charge for a propulsion unit (1). The latter includes a casing (2) containing the solid propellant charge (3), in the form of an elongated body having a longitudinal axis (X--X), which charge (3) has, over part of its longitudinal extent, a propellant charge profile (4) of large combustion area and is subdivided, along the longitudinal axis (X--X), into at least two segments abutting one another with their respective mutually confronting faces. The propulsion unit furthermore includes a nozzle (5) and means (6) for igniting said charge. The propellant charge profile (4) of large combustion area is provided in that part of the propellant charge (3) which is intermediate along the longitudinal axis (X--X).

Abstract: A surgical device which has an elongated body which is curved at one of its ends, and which has two through passages at each of its ends and two connecting lines connecting the through passages in such a way that each of the connecting lines connects one through passage at one end of the elongated body to a through passage at the other end of the elongated body. The elongated body also has both two selective control means mounted on it, each of which is capable of controlling the fluid circulation in the connecting lines, and two actuating members for actuating the selective control means. The surgical device also includes at least one first joining piece carrying a first tubular connector which can be brought into communication with such a body side. The first joining piece can be mounted at either end of the elongated body, so that the first tubular connector is connected, in common and in a sealed manner, to the two through passages of the end on which the first joining piece is mounted.

Abstract: A curable coating composition comprising (A) a functional group-containing base resin and (B) a clathrate compound consisting of (i) at least one guest compound selected from the group consisting of a curing agent having a functional group crosslinkable with the functional group of the base resin and a curing catalyst, and (ii) a host compound consisting of tetrakisphenols.

Abstract: The invention relates to a method of steering a vehicle, as well as to said vehicle allowing the method to be implemented.The method of steering such a vehicle including a propulsion system (2) and a jettisonable nose cone (8) containing a payload is noteworthy, according to the invention, in that, during the trajectory of said vehicle, the propulsion thrust of said vehicle (1) is temporarily interrupted in order to allow said jettisonable nose cone (8) to be ejected.

Abstract: The invention concerns profile sections for reinforcing or finishing the edges of plate-like composite elements, said sections comprising a core layer (31) and two cover layers (11, 21). The invention further concerns composite elements produced thereby and a method of producing these composite elements. The profile sections consist of at least two parallel legs (1, 2) and a connection web (4) and comprise an abutment surface (3) for the core layer (31). Disposed between the edges (5, 6) of the abutment surface (3) and the connection web (4) are open channels (7, 8) through which the air located between the cover layers (11, 21) and the core layer (31) and/or the profile section legs when the composite element is bonded can escape such that a bubble-free bonded connection is attained over the entire surface.

Abstract: Packaging for tablets, capsules and the like pharmaceutical products, that is child-proof and user friendly for senior citizen, is in the form of a blister pack (12), with at least one cup (24) which accommodates the tablet (20) closed off by a push-through foil lid (26), situated in an outer packaging (10) between a base part (14) and a cover part (16). The cover part (16) is covered over by a closure part (18) such that the lid foil (16) on the blister pack (12) faces the cover part (16) and the cover part (16) features an outlet opening (32) in line with the cup (24) in the blister pack (10). A cover strip (34) which is arranged between the base part (14) and the cover part (16) covers the outlet opening (32), can be removed on opening the closure part (18) thus exposing the outlet opening (32).

Abstract: The present invention relates to an air inlet cowl (9) for a jet engine. According to the invention, provided in the partition (20) delimiting the de-icing chamber (21) in the hollow leading edge (16) of the cowl is a trough-shaped duct (22) for ejecting to the outside pressurized hot air which has flowed through the chamber (21). The duct (22) is reduced in cross section by a single oblong orifice (18) made, parallel to the leading edge (16), in a part (23) that forms part of the external surface (9E) of the cowl (9).

Abstract: Lid material (10) in the form of a substrate material (5) such as a plastic film bearing a printed image (6) facing outwards with respect to the container (1) on which the lid material (10) is used, and an inward facing sealing layer (8, 9) for closing off containers (1) having a shoulder region (4). The inward facing side of the substrate material (5) bears the sealing layer (8, 9) in the form of a printed image which corresponds to the shoulder region (4) of the container. The printed image which forms the sealing layer (8, 9) can be deposited on the substrate material (5) in the same printing machine in which the printed image (6) is deposited on the substrate material (5).

Abstract: A process for the preparation of formylimidazoles of the general formula: or its tautomers, in which R.sup.1 is hydrogen or alkyl, and R.sup.2 is hydrogen, halogen or alkyl. In a first stage, an imidazole derivative of the general formula: ##STR1## or its tautomers, in which R.sup.1 and R.sup.2 are as defined above, is converted, by introducing an amino protective group, into an imidazole derivative of the general formula: ##STR2## or its tautomers, in which R.sup.3 is an amino protective group. Such derivative is formylated in a second stage in the presence of an organometallic compound and a suitable electrophile to give an imidazole derivative of the general formula: ##STR3## or its tautomers, in which R.sup.1, R.sup.2 and R.sup.3 are as defined above. Then, in a third stage, the end product of the formula I is obtained by cleaving off the amino protective group.

Abstract: The present invention relates to the production of a reinforcement for a composite component, comprising a fibrous substrate (22, 23) reinforced by a stitching thread forming stitches (27.1, 27.2; 30.1, 30.2; 33.1, 33.2 and 36.1, 36.2) passing through said substrate. According to the invention, said stitches are oblique and pass through said substrate slantwise, making an angle of inclination of at most 30.degree.. It is advantageous for said fibrous substrate to consist of plies of crossed threads (22, 23) defining mesh cells (24) through which said stitches pass.

Abstract: Arylcyanates are produced by reacting polyvalent phenols with a halogen cyanogen in the presence of a tertiary amine and a nonaqueous solution at high temperature. The tertiary ammonium halogenide obtained as a secondary product is fully or partially removed by processing the reaction mixture with cationic and anionic exchanger, whereby arylcyanates with a particularly low halogenide content are obtained.

Abstract: The present invention relates to a shut-off system for an orifice for introducing combustion air into a ramjet with a consumable auxiliary motor (14).According to the invention, this shut-off system comprises:an elastic system (28, 29, 31, 32) connected to the shut-off flap (20A, 20B); anda retaining element (33) for keeping the said elastic system in the said tense state during the initial phase of rocket operation, the said retaining element being sensitive to the hot gases emitted by the said consumable auxiliary motor (14) so that on completion of combustion thereof, the said retaining element (33) releases the said elastic system which spontaneously changes from its tense state to its relaxed state, bringing the said flap from its shut-off position to its open position.

Abstract: A process for preparing substituted pyrimidine derivatives of the general formula (I): in which a [3-(dimethylamino)-2-azaprop-2-en-1-ylidine]dimethylammonium halide is reacted with a substituted acetamide. The compounds of general formula (I) are important intermediate products for pharmaceutical or agrochemical active substances.

Abstract: 1,4,5,6-tetrahydropyrazine-2-carboxamides of formula: wherein R.sup.1 is hydrogen, alkyl, cycloalkyl or arylalkyl; R.sup.2 is alkyl, aryl, or arylalkyl and R.sup.3, R.sup.4 and R.sup.5 are hydrogen, acyl, aryl or arylalkyl or R.sup.2 forms an alicyclic system with R.sup.3 or R.sup.4 and the adjacent carbon atom(s), R.sup.6 being hydrogen or a group of formula R.sup.7 --C(.dbd.O)-- wherein R.sup.7 is hydrogen or alkyl. These compounds can be used in the production of piperazine carboxamides.