Abstract: A process for the purification of 1,3-diketones comprising reacting a 1,3-diketone with an earth metal or alkaline earth metal complexing agent in an organic solvent, isolating, washing and decomposing the resulting complex, and isolating the purified 1,3-diketone.

Abstract: The invention relates to a device comprising a housing, a printed circuit board (2) arranged inside said housing, and a chip card (3). Said chip card is electrically connected to the printed circuit board by means of a contact spring (1) and can be removed from the housing. The printed circuit board and the chip card directly lie, with a respective lateral surface thereof, one on top of the other or they are closely arranged next to one another. The contact spring, at least in one section, extends inside a recess (10) located in a housing wall (9) and/or in the printed circuit board.

Abstract: The present invention provides compounds of formula I, which are effective in absorbing ultraviolet radiation and can be used as sunscreen agents: wherein R1 and R2 are each independently C2-C18 alkyl, C5-C7 cycloalkyl, or C2-C18 alkyl in which at least one methylene group is replaced by oxygen; R3 is hydrogen, C1-C18 alkyl, C2-C18 alkyl in which at least one methylene group is replaced by oxygen, C1-C18 alkyl carbonyl, C3-C18 alkenyl, C3-C18 alkynyl, or a group YS; R4 is hydrogen, C1-C8 alkyl or a group OR3; Y is a linker group; and S is a silane-, an oligosiloxane- or a polysiloxane-moiety.

Abstract: The present invention relates to a process for the manufacture of compounds of Formula (I): wherein R1 is alkyl; R2, R3, R4, R5 and R6 are, independently, hydrogen, alkyl or alkenyl; X is hydrogen, halogen, alkyl or alkoxy; and the dotted bond is an optional bond. The present invention also relates to novel light screening compositions containing certain of the compounds of Formula (I) and to certain novel compounds of Formula (I), as well as other novel 2-substituted phenyl-benzotriazole compounds.

Abstract: The invention relates to novel indanylidene compounds which are effective in absorbing ultra violet radiation and to light screening compositions including the indanylidene compounds of the general formula I wherein X is O or NH; R1 is a C1-C20 alkyl, C2-C20 alkyl in which at least one methylene group is replaced by oxygen, C3-C20 alkenyl, C3-C20 alkynyl or a group YS; R2 is a C1-C20 alkyl, C2-C20 alkyl in which at least one methylene group is replaced by oxygen, C3-C20 alkenyl, C3-C20 alkynyl or a group YS; or R1 and R2 may combine on adjacent C-atoms to form a dioxomethylene ring; R3 is a C1-C20 alkyl, C2-C20 alkyl in which at least one methylene group is replaced by oxygen, C3-C20 alkenyl, C3-C20 alkynyl or a group YS; R4, R5, R6 are each independently H or C1-C20 alkyl; n is 0, 1 or 2; Y is a linker group; S is a silane-, an oligosiloxane- or a polysiloxane-moiety; with the proviso that at least one of the R1, R2or R3 residues is YS.

Abstract: The present invention relates to a process for the manufacture of compounds of Formula (I): 1

Abstract: An adaptable frame carrier with triaxial freedom of movement for couches and seats, in which the freedom of movement is achieved in the X-, Y- and Z-direction by a system of elements which can be moved relative to one another and are spring loaded, a connecting element making the moveability between the X-, Y- and Z-direction interdependent. The frame carrier having at least one dome-shaped rolling body (3, 8) which rolls along a pressure-resistant rolling plate (2) in the X- and Y-direction, and two cylinders (6, 7) which slide one into the other and are supported against each other in the Z-direction by a compression spring (4). One of the cylinders (7) which slide one into the other being connected in a spring-loaded and hinged manner to the frame (18) of the couch or seat via a frame connection plate (13).

Abstract: The invention relates to a cosmetic light screening composition containing, in an aqueous phase, about 0.5% to about 10 wt % of 2-phenylbenzimidazol-sulphonic acid or a salt thereof and at least one fatty phase, including about 1% to about 30 wt % of a linear or cyclic polysiloxane compound of the general formula Ia or Ib: ##STR1## wherein x is R or A;A is a group selected from the formula IIa, IIb or IIc; ##STR2## R is hydrogen, C.sub.1-6 alkyl or phenyl; R.sup.1 and R.sup.2 are each independently hydrogen, hydroxy, C.sub.1-6 -alkyl or C.sub.1-6 -alkoxy;R.sup.3 is C.sub.1-6 -alkyl;R.sup.4 is hydrogen or C.sub.1-6 -alkyl;R.sup.5 and R.sup.6 are each independently hydrogen or C.sub.1-6 -alkyl;r is from 0 to 250;s is from 0 to 20;r+s is at least 3;t is from 0 to 10;v is from 0 to 10;v+t is at least 3;n is from 1 to 6; andwhen s is 0, at least one X is A. Methods of using such compositions are also provided.

Abstract: A locking block screw connection provides material-elastic protection against loosening of the screw by a novel configuration of the connection zone, where a bore and a screw are engaged. The bore is provided with a circular taper at the thread runout. The screw has a pin continuation where an annular groove is provided. When the screw is screwed into the bore, the taper of the bore is elastically deformed until the taper engages in the groove of the screw. The engagement between the taper and the groove provides an axial security against loosening of the screw.

Abstract: The present invention concerns new s-triazines of the formula ##STR1## wherein W.sup.1, W.sup.2 and W.sup.3 each independently signifies C.sub.1 -C.sub.20 alkyl or a group SpSil;X.sup.1, X.sup.2 and X.sup.3 each independently signifies O or NH;Sp signifies a spacer group;Sil signifies a silane, an oligosiloxane or a polysiloxane moiety; with the proviso that at least one of W.sup.1, W.sup.2 and W.sup.3 signifies SpSil.

Abstract: The invention is concerned with compounds of formula I: ##STR1## which are useful as sun screening agents.

Abstract: A light screening agent, which contains a compound of the general formula ##STR1## wherein R and R' are alkyl, hydroxyalkyl, alkenyl, alkynyl, or alkyl ether radicals substituted by one or more hydroxy and/or alkoxy groups andAr represents one of the residues ##STR2## in which R.sup.2 is hydroxy, alkyl, alkenyl, alkynyl, or an alkyl, alkenyl, alkynyl ether residue or polyalkyl ether residue optionally substituted by one or more hydroxy and/or alkoxy groups and R.sup.3 is hydrogen or signifies a residue R.sup.2 and in which the hydroxy group is present in the .alpha.-position to the bonding to the triazine nucleus, with the number of C and O atoms present in R and R' being a total of 8 to 42, especially 8 to 18, and the number of O atoms corresponding to at most half of the C atoms.

Abstract: Photostable, cosmetic light-screening compositions for the protection of the human epidermis and the hairs against the ultraviolet rays of wavelengths between 320 and 400 nm, and between 320 and 400 nm respectively, comprising, in a cosmetically acceptable vehicle containing at least one fatty phase, about 0.75 to about 5%, in particular about 1 to about 4% by weight, of a dibenzoylmethane type UV-A screening agent and at least about 0.5% to about 2%, in particular about 0.5 to about 1% by weight, of a benzylidene type stabilizer of the general formula ##STR1## represents a bridged cyclic compound having the camphor (1,7,7-trimethyl-bicyclo?2.2.1!heptan-2-one), norcamphor (bicyclo?2.2.1!heptan-2-one), nopinone (6,6-dimethyl-bicyclo?3.1.1!heptan-2-one), pinocamphone (4,6,6-trimethyl-bicyclo?3.1.1!heptan-3-one), verbanone (4,6,6-trimethyl-bicyclo?3.1.1!heptan-2-one, thujone (1-isopropyl-4-methyl-bicyclo?3.1.0!hexan-3-one) or the 4,7-methano-octahydro-inden-5-one structure, and wherein R.sup.1, R.sup.2, R.sup.

Abstract: Light screening compositions which contain a compound of the formula ##STR1## wherein R.sup.1 represents H, C.sub.1-19 -alkyl, C.sub.2-29 -alkenyl, C.sub.2-29 -alkynyl, optionally lower-alkyl or oxy-lower alkyl substituted phenyl,R.sup.2 represents H, C.sub.1-29 -alkyl, C.sub.2-29 -alkenyl, C.sub.2-29 -alkynyl, optionally lower-alkyl or oxy-lower alkyl substituted phenyl,R.sup.3 represents H, C.sub.1-19 -alkyl, C.sub.1-19 -hydroxyalkyl, C.sub.1-19 -polyhydroxyalkyl, C.sub.2-29 -alkenyl, C.sub.2-29 -alkynyl, optionally lower-alkyl or oxy-lower alkyl substituted phenyl or optionally lower-alkyl or oxy-lower alkyl substituted pyridyl, a polyether residue, a phenylsulphonic acid residue andR.sup.2 and R.sup.3 together with the N atom can also form a ring.

Abstract: Light screening compositions which contain a compound of the formula ##STR1## wherein R.sup.1 represents H, C.sub.1-19 -alkyl, C.sub.2-29 -alkenyl, C.sub.2-29 -alkynyl, optionally lower-alkyl or oxy-lower alkyl substituted phenyl,R.sup.2 represents H, C.sub.1-29 -alkyl, C.sub.2-29 -alkenyl, C.sub.2-29 -alkynyl, optionally lower-alkyl or oxy-lower alkyl substituted phenyl,R.sup.3 represents H, C.sub.1-19 -alkyl, C.sub.1-19 -hydroxyalkyl, C.sub.1-19 -polyhydroxyalkyl, C.sub.2-29 -alkenyl, C.sub.2-29 -alkynyl, optionally lower-alkyl or oxy-lower alkyl substituted phenyl or optionally lower-alkyl or oxy-lower alkyl substituted pyridyl, a polyether residue, a phenylsulphonic acid residue andR.sup.2 and R.sup.3 together with the N atom can also form a ring.

Abstract: The invention is concerned with a process for the manufacture of substituted furans which are, in particular, flavorants; thereby 4-hydroxy-2-yn-1-ones or acetals or ketals thereof are cyclized with nucleophilic S-compounds to 3-S-furans, whereby this 3-S atom can be optionally substituted, and the acetylene derivatives, the 4-hydroxy-2-yn-1-ones, can be optionally 1- and/or 4-alkyl or alkenyl substituted.

Abstract: An apparatus for correcting misalignments in human teeth comprises a rod-like member which has a grip holder for fixing a ligature wire to a brace and to brackets applied to teeth. The grip holder is connected to a rod-like tubular torsion bar arranged in the interior of a hand tube and an end tube. On the outer circumference of the torsion bar are formed threads, which cooperate via a ball cage with the threads formed on the hand tube. A rotary movement is imparted to the torsion bar and thereby the grip holder by an axial movement of the hand tube or the end tube. As a result of this rotary movement, the ends of a ligature wire inserted in the grip holder are twisted for fixing a brace guided in the bracket, and consequently the brace is fixed to the bracket for transferring the force of the brace to the teeth. Therefore fixing is sped up and simplified as compared with other fixing methods.

Abstract: A device for supplying individual ligature wires inserted as a pack of wires in a casing of the device has an operating arm. A pack of ligature wires is inserted into a recess provided in the casing. Pressure is exerted onto the pack of wires by a push rod. In each case the lowermost ligature wire in the pack is pressed into a recess formed in the bottom of the casing. Then the wire from this readiness position is advanced into a transfer position by a driving pawl mounted in a slide. The movement is carried out by pressing the operating arm, the free end of which projects into a slot of the slide and, on pressing the operating arm, advances the slide and therefore the ligature wire into the transfer position. In the transfer position, the end portions of the ligature wire can be grasped by a tool, e.g. a twister and removed from the casing to be placed into the area of use.

Abstract: The instant invention provides a new and improved method of preparing .alpha.-hydroxycarbonyl compounds, particularly substituted cyclopent-2-en-2-ol-1-ones and substituted 3-hydroxy-2(5H)-furanones. The novel sequence involves a number of novel intermediates including substituted 2-cyanocyclopentanones, substituted 2-cyano-2-hydroxycyclopentanones, and 2-cyano-2-hydroxyvalero-.gamma.-lactones.

Abstract: The instant invention provides a new and improved method of preparing .alpha.-hydroxycarbonyl compounds, particulary substituted cyclopent-2-en-2-ol-1-ones and substituted 3-hydroxy-2(5H)-furanones. The novel sequence involves a number of novel intermediates including substituted 2-cyanocyclopentanones, substituted 2-cyano-2-hydroxycyclopentanones, and 2-cyano-2-hydroxyvalero-.gamma.-lactones.