The present invention relates to a process for the hydrolysis of plastics which contain hydrolytically decomposable chemical bonds (groupings) in the polymer chain, which is characterized in that the plastics used are treated with water in the presence of a hydrolysate of the same or a similarly composed plastic, at temperatures from 20 to 240.degree.C, optionally under pressure, until the plastic...

A method of depositing diamond film, comprising the steps of providing an environment comprising a mix of diamond forming gases and an electron source gas; applying an electric field across said environment to accelerate free electrons of said electron source gas, said free electrons dissociating hydrogen in said diamond forming gases to produce atomic hydrogen; and providing a deposition surface ...

A control device for a directional drilling tool is disclosed, particularly for drilling work with coiled tubing as the drilling tube and with a tubular outer casing (1) which accommodates an orientating device (4) and a measuring and control device (6) with a measured value sensing part (7), an electronic measured value processing part (8) and a control part (9) and comprising, adapted to be conn...

A method for the underground ascertainment of the depth of a bore sunk into underground formation, characterised in that the length measurement of the tubular rod parts which are to be used is ascertained and fed together with the starting depth of the bore hole into the memory of a computer housed in the drilling tool and pre-programmed with the data of the planned pattern of the bore hole, the c...

The purpose of the present invention is to provide an article of manufacture including a substrate having a water repellent film thereon of improved durability and to provide a method for forming such a water repellent film on a substrate. The article of manufacture is constructed by activating the substrate with an acid solution and then applying a water repellent composition over the substrate w...

A method and apparatus for purifying a gaseous or vaporous substance containing both high and heavy impurities in which the substance is rectified within first and second distillation columns 14 and 40 to produce a top vapour fraction in the second distillation column, lean in both heavy and light impurities. The bottom fraction produced within the second distillation column 40 is boiled. A vapour...

A method of producing an opaque adherent coating on the surface of a substantially hydrated cementitious substrate is provided. A waterborne storage stable sealer comprising an aqueous medium containing a binder polymer and an opacifying polymer is applied on the surface of such a cementitious substrate. Upon drying the layer substantially hides the primary efflorescence typically present on the s...

The device (2) base and side walls and an exchangeable upper piece (3) with suitably sized storage limits to contain articles to be stored. The base walls and upper piece can e.g. be made of plate material, a grid or grille. - The device incorporates components on which it slides, so that it can be withdrawn from a cupboard, etc. When the device is withdrawn, it can be tilted so that its front par...

An absorbent article comprising a front part which contacts the wearer's stomach during use; a rear part which contacts the wearer's buttocks during use; a crotch part located between the wearer's thighs and extends between said front and rear article parts; an absorbent body located on the crotch part which is enclosed between a liquid-permeable outer material which lies proximal to wear's body i...

An absorbent article comprising a front part which contacts the wearer's stomach during use; a rear part which contacts the wearer's buttocks during use; a crotch part located between the wearer's thighs and extends between said front and rear article parts; an absorbent body located on the crotch part which is enclosed between a liquid-permeable outer material which lies proximal to wear's body i...

A liquid discharging method is provided with heat generating elements for creating air bubbles for discharging liquid, discharge ports arranged corresponding to the heat generating elements, first liquid flow paths conductively connected with the discharge ports, second liquid flow paths arranged corresponding to the heat generating elements, and a separation wall to separate the first and second ...

The present invention provides a liquid discharging head comprising a discharge port for discharging liquid, a bubble generating area for generating a bubble in the liquid, a movable member disposed in a confronting relation to the bubble generating area and displaceable between a first position and a second position more spaced apart from the bubble generating area than the first position, and si...

A liquid discharge head comprises a grooved member including plural discharge ports for discharging liquid, plural grooves for respectively constituting first liquid paths directly communicating with the discharge ports, and a recess for constituting a first common liquid chamber communicating with the plural grooves and serving to supply the first liquid paths with liquid, plural element substrat...

A liquid ejection head includes an ejection outlet for ejecting liquid; a bubble generating region for generating a bubble; a movable member disposed faced to the bubble generating region and movable between a first position and a second position which is farther form the bubble generating region than the first position; wherein the movable member moves from the first position to the second positi...

A process and apparatus for the removal of aromatic amines from soil and water is described. In particular, treatment trains are described in which soil washing or low temperature desorption process effect removal of contaminant, such as xylidines from soil and steam stripping is utilized to remove contaminant from water. Further treatment through organic acid precipitation and advanced oxidation ...

A method of connecting the parts of a multi-part metal casing such as a casing for PCMCIA-cards involves adhesive connection. A double sided adhesive foil is applied to the casing cover which is then pressed to a pre- assembled frame unit that carries a printed circuit board and a socket connector strip. Pressure is applied to the region of the cover adjoining the connector strip for a period of a...

A guard rail scaffold assembly for mounting on or around a surface of a building or like structure, comprises a guard rail assembly member. A plurality of fastening pads are fastened to the selected surface, either by screws, or by an adhesive, or both, each pad having a pivot part thereon. A guard rail assembly member is attached to each pad by a pivot pin, each assembly member comprising a base ...

A method and system for preserving state in computers communicating over net works, such as the World Wide Web (WWW) using stateless protocols, e.g., HTTP. State is preserved in a conversation between a client requesting services from a served by performin g the service and identifying all continuations (hyperlinks) in an output from the service; re cursively embedding the state information in all...

A gateway computer is connected to a wireless station switch which receives and sends transaction processing data between remote terminals and a transaction processing host. The gateway interprets an exception code in the data packet received from the terminals to determine whether data is to be forwarded or whether a predetermined circuit management activity is to be carried out by the gateway fo...

Disclosed is a reliable recording head free from any operation error. M x N recording elements are divided into N blocks each having M recording elements, and are driven for every M recording elements N times. M x N driving circuits energize and drive the M x N recording elements. A selection circuit outputs N block selection signals for selecting the N blocks to be divisionally driven. An input c...