Abstract: Photochemical isomerization of 11-cis-, 13-cis-retinoic acid to 13-cis-retinoic acid characterized in that it is performed in an aqueous solution of an alkaline salt of said 11-cis-, 13-cis-retinoic acid.

Abstract: Compositions of unstrained perfluorinated ether organo substituted cyclosiloxanes of formula (I): ##STR1## wherein m is an integer of 1 to 12; n is an integer of 1 to 4; X is a divalent radical which may include O, NH, N(CH.sub.3), OC(O), NHC(O), N(CH.sub.3)C(O)CH.sub.2 ; and R.sup.F is a perfluorinated ether radical of the general formula (II): ##STR2## wherein p is an integer of 1 to 10 are described, along with copolymer compositions prepared from these cyclopolysiloxanes and from mixtures of these cyclosiloxanes and other siloxanes.

Abstract: The invention provides a process for treating a sulfide-containing alkaline aqueous effluent, which includes subjecting it to a wet air oxidation treatment which oxidizes sulfide ions to environmentally acceptable sulfur acid ions, the oxidation being carried out in two or more chambers connected in series, flow of effluent between the chambers being effected at least primarily by gravity such that the pressures in the respective chambers can be maintained at substantially the same value.

Abstract: The present invention regards a particularly quick-setting Portland cement clinker containing calcium fluoro-aluminate (11CaO.7Al.sub.2 O.sub.3.CaF.sub.2) mixed with lime that has not undergone the burning process of the clinker.

Abstract: The invention provides high purity 3-aminopropylmethylsiloxanes of the general formulae: ##STR1## wherein each R may be the same or different aryl group, or monovalent straight or branched chain alkyl group having from 1 to about 18 carbon atoms, Me is methyl, and x may range from about 3 to about 5, the process comprisinghydrosilylating allylamine with a monohydridomethylsiloxane of the general formulae: ##STR2## wherein each R may be the same or different aryl group, or monovalent straight or branched chain alkyl group with 1 to about 18 carbon atoms, and x may range from about 3 to about 5, in the presence of a neutral platinum catalyst.

Abstract: A synthetic, crystalline, porous material is disclosed, together with the related preparation process. Such material of zeolitic nature containing oxides of silicon, titanium and gallium corresponds, in the calcined and anhydrous state, to the following empyrical formula:pHGaO.sub.2.qTiO.sub.2.SiO.sub.2,wherein p has a value greater than zero and smaller than or equal to 0.050, and q has a value greater than zero and smaller than or equal to 0.025, and the H.sup.+ of HGaO.sub.2 can be at least partially replaceable or replaced by cations.

Abstract: A flexible joint for a culvert includes a pair of annular connecting members, a flexible sealing member fixed to the connecting members, bearing means provided radially inwardly of the flexible sealing member and fixed to the connecting members for supporting the flexible sealing member to prevent inward deformation of the flexible sealing member. The bearing means may consist of bearing bars arranged circumferentially or may consist of a pair of annular support members. The flexible joint further includes cylinders fitted loosely on the bearing bars. The flexible joint may further include an annular joint filling member provided between the connecting members for preventing flowing of secondary lining concrete into space between the connecting members and having a thickness in the radial direction which enables continuous depositing of the concrete from one culvert unit to another culvert unit to be joined together.

Abstract: The present invention relates to a process of preparation of a new reconstituted collagen template and further to the reconstituted collagen template being able to cure articular destruction in a mammal.

Abstract: A toolless spike system for shoes wherein detents are used to retain and release, by snapping, clipping, etc., a spike member from a base member associated with the shoe.

Abstract: The present invention provides a deicing composition which is environmentally benign and a process for producing the composition from certain waste process streams.

Abstract: A vehicle symbol illumination apparatus is provided which is operable in conjunction with a high mounted brake light wherein the illumination for the vehicle symbol is extinguished, masked or brightened when the high mounted brake light is activated.

Abstract: A plant for manufacturing containers, for example for food use, consisting of a number of compartments equal to or greater than one, which comprises a station for the initial shaping of a container starting from a relative punched cardboard blank, a station for the final shaping of the edges of the container already shaped by said initial shaping station and a station for closing the container with a lid, in which each blank is fed by feed means to the initial shaping station, means for transferring the shaped container being provided between the stations, the container having a number of compartments greater than one, the initial shaping station comprising a forming head assembly consisting of a number of forming heads equal to the number of compartments into which the container is divided, counteracting means cooperating with the forming heads to deform the blank, and means for discharging the thus shaped container, the forming heads being movable at least one relative to the other and the counteracting mea

Abstract: An interactive book having at least one page which has a track formed on the page wherein the page is further provided with a pop-up bridge having a track thereon, the pop up bridge being formed from a sheet attached to the page and adapted to fold substantially two-dimensionally when the book is in a closed position and to extend three-dimensionally when the book is in an open position, wherein the tack on the bridge cooperates with the track formed on the page such that a toy figure may be continuously moved from the track on page to the track on the pop up bridge and back to the page.

Abstract: A method for manufacturing a magnetic disk substrate includes a step of polishing a glass-ceramic having a crystal phase consisting of crystal grains having an average diameter of less than 3 .mu.m with a polishing material having a grain diameter smaller than the diameter of the crystal grain. In one aspect of the invention, the glass-ceramic includes lithium disilicate (Li.sub.2 O--2SiO.sub.2) and alpha-quartz (alpha-SiO.sub.2) as predominant crystal phases and grown crystal grains of the alpha-quartz each have a globular grain structure consisting of aggregated particles and have a diameter within a range of 0.3 .mu.m-3.0 .mu.m.

Abstract: A quick release musical instrument strap attachment device comprising a strap attachment unit which comprises a female receiving quick release portion having base portion and a hollow body portion for receiving and locking a male quick release portion and a first cord having both ends thereof attached to the base portion of the female quick release portion to form a loop and a musical instrument attachment unit comprising a male quick release insertion unit which comprises a base portion and an insertion means adapted for insertion and locking into the hollow body portion of the female receiving quick release portion and a second cord having both ends thereof attached to the base portion of the male receiving quick release portion to form a loop. The strap attachment unit being attachable to a strap and the musical instrument attachment unit being attachable to a musical instrument.