1420685 N-Haloacyl oxazolidines SCM CORP 6 Aug 1973 [15 Aug 1972 (2)] 37243/73 Heading C2C N-Haloacyl 2-substituted oxazolidines of general formula wherein R 1 is a C 2-4 haloacyl group; R 2 is a divalent radical which forms with the Z-C atom of the oxazolidine ring a cycloaliphatic group which may contain atoms other than C; and R 3 , R 4 , R 5 and R 6 are H or C 1-6 alkyl groups, or of ge...

An aqueous dispersion of an olefinic resin composition having improved properties which comprises mixing an olefinic resin composition comprising (a) 50 to 99% by weight of a carboxyl-free olefinic resin having an intrinsic viscosity of 0.1 to 5 and (b) 1 to 50% by weight of a carboxyl-containing modified olefinic resin having an intrinsic viscosity of 0.04 to 1 and an acid number of 30 to 150, th...

A method and system for injecting coal and process fluids into a fluidized bed gasification reactor. Three concentric tubes extend vertically upward into the fluidized bed. Coal particulates in a transport gas are injected through an inner tube, and an oxygen rich mixture of oxygen and steam are injected through an inner annulus about the inner tube. A gaseous medium relatively lean in oxygen cont...

Pallet, especially a disposable pallet, consisting of two outer base members (1) and preferably at least one intermediary base member (1), which base members suitably are identical and consist preferably of wood or a similar material, the height of which suitably corresponds to the conventional pallet height and the thickness of which suitably is within the range 20-100 mms, especially about 25-35...

Pallet, especially a disposable pallet, consisting of two outer base members (1) and preferably at least one intermediary base member (1), which base members suitably are identical and consist preferably of wood or a similar material, the height of which suitably corresponds to the conventional pallet height and the thickness of which suitably is within the range 20-100 mms, especially about 25-35...

A vessel for use in the chlorination of a titaniferous material having an outer shell-like retaining wall, inlet means for the material and outlet means for discharge of gaseous products with a base provided with a means to introduce a gas into the vessel and the shell-like retaining wall having a refractory lining and the base an infill material in which the lining, infill material and/or means t...

Hydrophilic biopolymeric copolyelectrolytes are prepared from (a) a water-soluble linear anionic protein polyelectrolyte component derived from keratin, such as ammonium keratinate, and (b) a water-soluble linear cationic biopolymer polyelectrolyte component derived from a glucosaminoglycan and/or collagen, such as chitosan acetate and/or collagen acetate. Hydrogel membranes formed from the copoly...

Heating chamber(11) for pellets of glass making materials fed to a glass melting tank(12) comprises a chamber with a pellet inlet(25) at an upper level and a pellet outlet(36) at a lower level. Between the inlet & outlet the pellets lie at an angle equal to the angle of repose of the pellets. Hot gas jets(40) are introduced below the bed with the discharge points arranged in an inclined manner p...

Crude hydrogen chloride gas obtained as a by-product in the production of chloroacetic acids by the catalytic chlorination of acetic acid with chlorine gas in contact with acetic anhydride and/or acetyl chloride, and contaminated with about 0.6 up to 3 % by volume of acetyl chloride is purified. To this end, crude hydrogen chloride gas is introduced into the base portion of a scrubbing zone and sc...

A spherical kinematic joint, e.g. hip joint 12, comprises a bearing insert 20 comprising a plurality of parts 21, the parts being held together, e.g. by ring 40, by a flexible strip integral with the parts or by interengaging or interlocking elements on the parts.

Disclosed are means and method for forming elastic connection between ceramic and metallic structural elements. The means comprises a ceramic structural element; a metallic structural element having thermal and elastic properties different from those of the ceramic structural element; and a connecting element connecting the ceramic and metallic structural elements and comprising an insulating resi...

PURPOSE:To ensure highly economical performance with comparatively reduced limitation due to the voltage and with high accuracy, by sharing a level compressing/rectifying circuit and an A/D converting circuit. CONSTITUTION:The signal of an audio signal input terminals 1 (1-1-1-n) of a talking channel undergoes the time division multiplexing through the 1st multiplexer 5 and then compression/rectif...

PURPOSE:To prevent the malfunction of an automatic gain control circuit due to a signal hit, by providing a switched capacitor circuit at the output side of an error detecting part of signal level in order to hold the control signal. CONSTITUTION:A full wave rectifier FWR and an operational amplifier OP2 perform the detection of an error between signal levels as well as the multiplication of the s...

To retain a plate-like sensing element, for example made of ceramic, in position within a metallic housing without danger of breakage or loosening under conditions of vibrations or shock or wide swings of temperature and substantial temperature gradients, a metallic housing has a longitudinal opening wherein in which two sealing elements are located, for example made of aluminum oxide. The sealing...

1412290 Divinyl ether-maleic anhydride copolymers HERCULES Inc 20 Dec 1972 [22 Dec 1971] 58929/72 Heading C3P [Also in Division A5] A solid cyclic copolymer of divinyl ether and maleic anhydride having recurring units of formula and in the form of a composition having a range of molecular weights, the copolymers in the composition having a number average molecular weight of from 5000 to 30,000 and...

PURPOSE:To miniaturize the apparatus and reduce the cost thereof by providing a parallel passage connecting in parallel a downstream valve to an upstream changeover valve. CONSTITUTION:When a changeover valve 37 is switched and a turning motor 33 is driven, the high-pressure of the turning motor 33 is selected by a shuttle valve 34. The pilot pressure flowing into a pilot passage 35 acts upon a pi...

PURPOSE:To obtain a stable and highly uniform crystal, by inserting a spiral pipe between the reaction tube and the vacuum pump at the exhaust side of the reaction tube, thereby keeping the pressure in the reaction tube at a definite level. CONSTITUTION:The reaction tube 4 and the vacuum pump 8 for exhaustion are connected with each other through a spiral pipe 10 and the needle valve 9. The shape ...