A method for easily, inexpensively and efficiently producing an improved water-absorbent resin having a high water absorbency and a high water absorption rate and capable of forming a gel having a high gel strength and nonstickiness, in which water-absorbent resin particles which contain water and a crosslinking agent and are in the semi-swollen state are agitated at an elevated temperature in the...

The use in conventional polyolefin extrusion foaming processes of a stability control agent (e.g., stearamide, EAA copolymer, etc.) in conjunction with certain mixed blowing agent systems, the mixed blowing agent system containing 60-95 weight percent of 1-chloro-1,1-difluoroethane or 60-95 weight percent of 1,1-difluoroethane. These compounds have a shorter atmospheric lifetime and lower stabilit...

This invention relates to a process to produce resin matrix materials. More particularly, it relates to an improved method to prepare resin-reinforced fiber composites, such as sheets and tapes, and their consolidation under heat and pressure into laminates.

A method of producing plywood for use in making formwork, the method comprising dispersing a first dose of adhesive polyolefine resin powder 2 on the plywood 1 being conveyed, preheating the resin powder on the plywood, pressing the preheated resin with a first heated roller until it spreads on the surface of the plywood in a molten state and covers the plywood as a first film bonded thereto, disp...

A differential gear mechanism of the limited slip type is provided. The mechanism includes a clutch pack (35) and a cam mechanism (41) which are able to retard differentiating action of the differential gear means (19,23,25). A flyweight mechanism (51) is operable to actuate the cam mechanism, and to engage the clutch pack. The cam member (43) includes a cam surface (47) having alternating rising ...

A process for manufacturing high-resistance elements for integrated circuits, in which the resistors are positioned on a layer of silica covering an integrated circuit, in a polycrystalline silicon zone possessing high resistivity, current supply lines being formed of a layer of polycrystalline silicon possessing low resistivity, surmounted by a layer of tantalum silicide. Plugs of photosensitive ...

The invention relates to a thermally insulating composite wall for any kind of tank on ships or on land. The wall comprises a self-supporting external wall, a bed of thermally insulating elements secured to said wall at least partially by means of a hardened packing material and a fluid-tight internal lining; said material may notably be a cellular material in contact with all the external surface...

In the case of a composite glass pane (1) in the thermoplastic intermediate layer (4) of which a wire (6), for example an aerial wire or a heating wire, is arranged, which wire is connected to a connecting cable (9), the connecting point (10) between the wire (6) and the connecting cable (9) is arranged within a marginal cutout (12) of the thermoplastic intermediate layer (4). The connection betwe...

Foil card, combined with a card piece carrying micro-encapsulated liquid crystals based on cholesterol, a piece carrying micro-encapsulated liquid crystals being located on a core foil and this layer element being covered on its entire surface by a transparent film.

A vector data processing system includes at least an A-access pipeline (27) and a B-access pipeline (28) between a main storage unit (4) and vector registers (21). Associated with the A-access pipeline (27) are a write port (WA) and a read port (RA) selectively connected to the vector registers (21). Associated with the B-access pipeline (28) are a write port (WB) and a read port (RB) selectively ...

Additive, e.g., ethoxylated nonylphenol, for lignin type water-reducing agent in hydraulic cement compositions, reduces air entrainment in the concrete mix.

At least one gas jet (5) is generated and is perturbed by means of a baffle (19) inserted in its path to establish counterrotating turbulences alongside a lamina flow region towards which a lace (G) of ductile substance is brought. The baffle member (19) comprises at least one component with a surface whose sections parallel to the axis of the orifice for emitting (32) the jet and to the lace (G) ...

A fluid reflecting member for use in combination with a fluid spouting nozzle element, which member includes a cavity forming portion provided with a circular fluid reflecting cavity toward which a fluid or fluids is spouted from the fluid spouting nozzle element. The cavity forming portion is characterized by being provided with a plurality of axial slots having axially and outwardly inclining sl...

Automatically operating washing machines adjust the washing time, the wash water temperature and the motion, i.e. agitation, of the laundry based on predetermined cycles, such as wash, spin, or rinse, etc. An adjustable program course controls these cycles. Naturally, certain cycles require hotter or colder temperatures than others. The method of the invention varies the program course to cycles r...

Composition for the preservation of wood containing a wood preservative, such as a boron compound or a fluorine compound, in a polymer or polymer composition, which upon contact with water releases the wood preservative. Said composition is introduced into a hole in the wood or in a wood construction, whereafter the hole is sealed.

PURPOSE:To obtain a device in which an X-ray permeation window is not damaged and X-rays with high intensity can be efficiently obtained by providing a conical plasma orifice and a charged particle deflection means arranged near the centerl axis of the solid angle of the plasma orifice. CONSTITUTION:The center of the solid angle of a plasma orifice 6 is made to nearly coincide with an X-ray radiat...

The storage space of the instant system is considered, for refresh purposes, to contain 512 groups of 26 bit digital words with each group containing 128 such words. Memory refresh is implemented by sequentially refreshing the groups of digital words at the rate of one group every 2.8 microseconds, giving an expected total memory refresh time of approximately 1.43 milliseconds. A particular digita...

The invention relates to a shell-shaped acetabular prosthesis which is made of a plastic, can be anchored cement-free in the pelvic tissue of a hip joint and on the essentially spherical inner side of which the ball-shaped femoral head of the hip joint is to be supported, the outer side of the prosthesis pan facing the pelvic tissue being provided with recesses distributed over its outer circumfer...

A hip cup (1) for a hip-joint endoprosthesis for cement-free anchoring in the human acetabular tissue consists of a plastic shell (4) which has a semispherical outer surface and an inner surface forming a semispherical cavity (8). The inner surface is arranged eccentric to the outer surface, as a result of which a thin-walled and a thick-walled cup area are formed. In order to permit a sufficient ...