A split tire mold having a tread ring in which provision is made for venting air circumferentially across the inner surface of the tread ring so that the air escapes from the parting line of the mold halves, dispenses with widely used, conventional, radially protruding vent stubs. The air is vented through "butterfly-shaped" or "double-wedge-shaped" arch-vents which provide passage for trapped air...

A process for manufacture of molded, high resiliency, polyurethane foam substantially free of volatile organic blowing agents comprising feeding at least three streams into a mixing device to form a reaction mixture, wherein a first stream contains (i) a polyol, (ii) water, (iii) a catalyst, (iv) a surfactant; a second stream contains an organic polyisocyanate; and a third stream contains (i) wate...

The present invention is directed to new ginkgolide derivatives, which may be used for the prevention or treatment of various PAF-induced diseases, and the pharmaceutical uses of these derivatives. The present invention is also directed to a process for preparing these ginkgolide derivatives. (I)

PCT No. PCT/SE89/00138 Sec. 371 Date Nov. 1, 1990 Sec. 102(e) Date Nov. 1, 1990 PCT Filed Apr. 16, 1989 PCT Pub. No. WO89/10793 PCT Pub. Date Nov. 16, 1989.In a centrifugal separator there is formed within the rotor a separating chamber (7) and a central chamber (26), which latter communicates with a peripheral part of the separating chamber through a channel (19a, 19b). The part (19a) of the chan...

The present specification describes a thermal spray powder feed coating composition composed of stabilized zirconia mixed with zircon and a selected oxide, such as yttria, to form a refractory oxide coating ideally suited for hearth rolls for annealing steel. Also disclosed is a process for producing the coating and the coated article so produced.

A method for the production of an absorbent resin retaining at a high level an absorption capacity without load, one of the basic physical properties of absorbent resin, and excelling in an absorption capacity under load is provided. The production is attained by mixing an absorbent resin as a base polymer possessing a carboxyl group with a first cross-linking agent possessing a solubility paramet...

A process for dispersing one or more powdered ignition resistant or flame retardant additives into carbonate polymers which comprises the steps of preparing a base concentrate having from 5 to 50 weight per cent of said additives by blending said additives with a carbonate polymer having a melt flow rate of from 3 to 20, pelletizing said base concentrate having said ignition resistant additive dis...

A coloring high-molecular particulate material is provided with has an average particle diameter of 10-200 mu m. This material is obtainable by adding an emulsion destabilizing agent to a mixture which comprises a mixture of a dispersed and stabilized pigment and an emulsion resin, and particles of a vinyl chloride synthetic resin containing 4.7-50 wt.%, of a plasticizer. Alternatively, the mater...

An improved second stage tire building machine (10) including a first station (16) for receiving and supporting a first stage tire carcass; a second station (24) axially offset from the first station (16) for assembling a breaker and tread cylinder; a servicer (38) for feeding breaker strip material to the second station (24) to form a breaker cylinder; a tread conveyor (48) for feeding tread mate...

An injection timing device for an electronic fuel injection system can be provided wherein the actual position of the timer piston can be detected when the injection pump is operated for the first time, then the discrepancy between that actual position and the reference position is learned and after that, the timing control valve is controlled by incorporating this learned value in order to correc...

Rubber plug prodn. for a vial is such that a synthetic resin film is laminated on the leg side of a rubber plug. The prodn. method comprises (i) a first formation step of superposing a synthetic resin film (1) resistant to medicines or to medical chemicals onto an unvulcanised rubber sheet (2) and pressing, heating and shaping them between moulds (A, B); (ii) a second formation step of putting an ...

Peptides having immunological properties in common with those of the peptidic skeleton of peptides of viruses of the family HIV-2, particularly the envelope glycoprotein of HIV-2, characterized in that they have also a peptidic structure in common with the peptidic skeleton of peptides of SIV, particularly the envelope glycoprotein of SIV. The invention also relates to diagnosis compositions capab...

An improved method and system that provides for a data access interface layer in a navigation system. The navigation system is of the type that includes a navigation application software program that provides navigating features to a user of the system and a geographic database stored on a computer-readable storage medium wherein the geographical database includes information relating to the geogr...

METHODS FOR REMOVING CONTAMINANTS FROM POLYMERS The present invention relates to a method for treating plastic polymers to reduce or remove organic contaminants. More particularly, the present invention relates to a method of treating , by continuous means, a flowable polymer mass with a solvating fluid in an environment at which the solvating fluid is in a supercritical state and is subject to co...

2 min -Methylidenepyrimidine nucleoside compounds of the general formula : wherein R<1> stands for amino or hydroxy group; R<2> stands for a halogen or a lower alkyl when R<1> is amino or R<2> stands for an alkyl having 2 to 4 carbon atoms, an alkynyl having 2 to 4 carbon atoms or a haloalkyl when R<1> is hydroxy group; and R<3> stands for hydrogen or a phosphoric acid residue, or salts the...

The present invention relates to novel conjugates, methods for their production, pharmaceutical compositions and methods for delivering cytotoxic anthracyclines to a selected population of cells desired to be eliminated. The anthracycline conjugates comprise at least one anthracycline molecule linked to a ligand that is reactive with a cell population to be eliminated, the anthracycline having a k...

The prepn of mixed crystals of disodium-5'-guylate (I) and disodium-5'-inosinate (II) by crystallising from aq solns comprises slowly adding an aq soln of (II) to an aq slurry of (I) contg excess undissolved. (I). USE/ADVANTAGE - The mixts of (I) and (II) can be used as pharmaceuticals but esp as condiats. The resulting mixed crystals have the desired particle properties, such as they occur in th...

A process for the chlorination of sucrose or a derivative thereof, comprises reaction of the sucrose or derivative thereof with thionyl chloride and a nitrogen base at a ratio of about 1 molar equivalent (ME) of thionyl chloride and about 1 ME of base for every ME of free hydroxyl, in a non-reactive moderately polar solvent. The process is particularly suitable for the preparation of sucralose.