Abstract: A composition suitable for use as a primer coating for a substrate which comprises a halopolymer, an epoxy resin, and an oxide of titanium. The epoxy resin and oxide of titanium are present in amounts effective to provide a primer coating of the composition over a substrate. Preferred halopolymers are ethylene/chlorotrifluoroethylene copolymers and ethylene/tetrafluoroethylene copolymers. Preferred epoxy resins include bisphenol A based epoxy resins and epoxy cresol novolac resins. A preferred oxide of titanium is titanium dioxide. Such compositions are particularly useful as primer coatings for metal substrates.

Abstract: In the two stage liquefaction of a carbonaceous solid such as coal wherein coal is liquefied in a first stage in the presence of a liquefaction solvent and the first stage effluent is hydrogenated in the presence of a supported hydrogenation catalyst in a second stage, catalyst which has been previously employed in the second stage and comminuted to a particle size distribution equivalent to 100% passing through U.S. 100 Mesh, is passed to the first stage to improve the overall operation.

Abstract: In a process for producing distillates from coal by a first stage thermal liquefaction followed by a catalytic hydrogenation, liquefaction solvent is added at points spaced over the length of the thermal liquefaction heater.Coal may be co-processed with petroleum oil by adding pre-hydrogenated oil to the first stage or unhydrogenated oil to the second stage.

Abstract: A process for cryopreserving a biological material which comprises contacting the biological material with both an effective amount at least one cryopreservation agent, and an agent to increase diffusion of the cryopreservation agent into the biological material, such as a surfactant or a permeation enhancer.

Abstract: A process for reactivating alkylation catalyst which comprises contacting alkylation catalyst with hydrogen and benzene in the essential absence of olefin. The reactivation process may be conducted under conditions (eg., temperature, pressure) similar to that employed in an alkylation reaction. This process enables one to reactivate the catalyst in situ in a relatively short time, thus minimizing disruption of the alkylation operation.

Abstract: In a process and apparatus for the production of a foamed-backed cushion portion comprising a foam core and a cover, a cover portion is introduced into a first mold portion of a mold. The cover portion is secured in position between the first mold portion and a second mold portion along peripherally extending contact portions therebetween, the mold forming a mold cavity when closed. A reaction mixture introduced into the mold cavity foams up and fills the mold cavity and is thus joined to the cover portion. To prevent air from passing out of the mold cavity between the contact portions the mold is sealed in the region of the contact portions by means of a flow of a gaseous flow agent which is directed from the contact portion of at least one mold portion towards the oppositely disposed contact portion of the other mold portion. An elastically yielding sealing element may be provided between the mold portions to improve the sealing action.

Abstract: In a process and apparatus for the production of a component including a support element and foam portions adhering to the top and bottom surfaces thereof, the support element is arranged with its bottom surface over a first mold cavity of a mold. A cover is then sealingly fixed on the mold in such a way that a second mold cavity is defined between the cover and the support element. A first reaction mixture is introduced into the second mold cavity and reacts to form a first foam portion on the top surface of the support element. The cover with support element and first foam portion are then removed from the first mold cavity. Thereupon a second reaction mixture is introduced into the first mold cavity which is then immediately sealingly closed again by the unit consisting of the cover and the support element with its first foam portion.

Abstract: An apparatus for dispensing a predetermined amount of a sample into a fluid. The apparatus comprises a chamber which may be inserted into a cuvette. The chamber comprises a means such as a membrane or filter ball for dispensing a predeterming amount of a sample into a fluid upon contact of said membrane or filter ball and said sample by said fluid. The fluid is brought into contact with the sample by vortexing the fluid with a vortex mixer.

Abstract: An improvement in a method of rotating the plane of polarization of polarized light in a Faraday rotator, having an optical element which includes a ferromagnetic material, which comprises varying the strength of the magnetic field generated along the optical axis of the optical element in response to changes in the wavelength of the polarized light. The magnet employed in the Faraday rotator may be at least one permanent magnet or an electromagnet. Preferred optical elements are made of disc having a gadolinium-gallium-garnet (GGG) or large lattice constant (LLC) substrate, and the substrate is coated with an oxygen--and iron--containing film.

Abstract: A device for welding roof membranes which includes a heat welding means capable of applying a heat weld to overlapping roof membranes, and a fluid application means capable of applying a solvent or primer between overlapping roof membranes in order to form a solvent weld to the roof membranes or to aid in preparing the membranes for application of a heat weld to the membranes. The device may be employed to apply, for example, a heat weld to overlapping roof membranes on one side of a fastening means, and a solvent weld to the overlapping roof membranes on the opposite side of the fastening means. Such a device enables one to apply solvent or primer safely while providing the ability to apply, if desired, a heat weld in addition to the application solvent or primer.

Abstract: A cushion portion for the squab or the backrest of a seat with an air-conditioning zone comprises a basic element and a cover element disposed in an opening in the basic element. A cavity provided between the basic element and the cover element is in fluid communication with the top side of the cushion portion through a plurality of spaced-apart apertures extending through the cover element in conical depressions therein. Further apertures provide a fluid communication with the cavity at the edge of the basic element or the cover element.

Abstract: A Faraday rotator having a first, or central magnet, and first and second tuning magnets a opposite ends of the central magnet. The central magnet and the tuning magnets are of opposite polarities. The central magnet surrounds a first optical element having a positive or negative Verdet constant, and the tuning magnets surround second and third optical elements, respectively. The second and third optical elements each have a Verdet constant of a sign opposite that of the first optical element. Such Faraday rotators require smaller magnet assemblies than Faraday rotators having just one optical element surrounded by the central magnet. There is also provided a Faraday rotator having at least two magnets wherein each magnet of any one pair of contiguous magnets generates a magnetic field in a direction opposite that generated by the other of the any one pair of contiguous magnets. The optical elements surrounded by these magnets have oppositely signed Verdet constants.

Abstract: A process for recovering hydrogen from a cracking effluent wherein a cracking effluent is compressed, and then at least a portion of the hydrogen is separated from the cracking effluent prior to cooling of the cracking effluent to remove lower-boiling components. The separation of hydrogen is preferably accomplished by passing the cracking effluent through at least one semi-permeable membrane.

Abstract: An anchor assembly capable of being inserted in a hole in a substrate. The assembly includes a sleeve and a screw. The sleeve includes a top end, a body portion, and a bottom end. The sleeve includes at least one feeler prong adjacent the top end, and preferably a tip portion adjacent the bottom end. The anchor assembly may be inserted into a hole in the substrate. The feeler prong(s) enable the installer to known whether the sleeve has been inserted properly into the hole, and the tip serves to push dust away from the bottom of a hole to insure optimum penetration of the sleeve into the hole, as well as insuring full penetration of the screw into the sleeve.

Abstract: A head support for a seat comprises two head support carriers mounted in the backrest of the seat rotatably about their respective axes. The carriers are cranked at their upward ends which are towards the head support member. A respective bar in the form of a rack member is rotatably mounted to the cranked portion of each carrier, the bars being displaceable longitudinally relative to a line connecting the two carriers in respective guide which also entrain the head support member and the guide for the bars being rigidly coupled together. A pinion may mesh with the rack members between the bars for synchronized movement of the mechanism.

Abstract: CPF peptides and/or analogues or derivatives are used as a pharmaceutical. Such peptides have antibiotic and/or anti-viral and/or anti-tumor and/or anti-spermicidal activity.

Abstract: A vehicle seat which is adjustable in height and which affords automatic adjustment to the seat occupant weight comprises a gas spring between a seat frame and a base frame, a valve arrangement actuable by an actuating element to adjust the pressure in the gas spring in dependence on the weight of the seat occupant, and a means for setting the desired seat height. Disposed between the seat and base frames is a belt reel device with a coupling means, which like the gas spring, can be subjected to the action of pressure gas from a pressure source. The pressure source comprises a compressor driven by a drive motor, which are disposed on the vehicle seat. The valve arrangement includes a 2/2-way valve which serves only for the release of pressure gas from the gas spring, and a 3/2-way valve between the pressure source and the coupling means of the belt reel device. The valve arrangement may be mechanical/pneumatic in operation or may be controlled by an electronic control arrangement.

Abstract: A stabilized melt processable composition containing a halopolymer (e.g., an ethylene chlorotrifluoroethylene copolymer) and an effective stabilizing amount of an ester of a (4-hydroxy-5-alkylphenyl) alkanoic acid and at least one phosphite. Such compositions may be melt processed and extruded at high temperatures (e.g., up to 305.degree. C.) and retain their stability. These compositions are especially desirable in wire and cable coating applications.

Abstract: A fastener having a head portion, a shaft portion, and a hook portion which secures the fastener within a substrate. The hook portion may have a plurality of serrations on a surface thereof for gripping a substrate. The hook may be of a material having a memory such that, when the hook is compressed during the insertion of the fastener in a hole in a substrate, the hook will expand against the walls of the hole in a desire to return to its original shape. Such a fastener may be easily inserted into the hole, but considerable force is required to remove the fastener from the hole after insertion. The fastener thus can be inserted easily through soft materials overlying a hard substrate without damaging them while providing an effective anchoring force within the substrate in effectively fastening materials to a substrate.