Methods are disclosed for preparing a highly active solid metallocene-containing catalyst system and its use in the polymerization of olefins. The catalyst system is prepared by creating a catalyst system solution by combining an aluminoxane with a metallocene having a substituent which has olefinic unsaturation in a suitable liquid to form a liquid catalyst system, conducting prepolymerization of...

PCT No. PCT/NO94/00183 Sec. 371 Date Jul. 15, 1996 Sec. 102(e) Date Jul. 15, 1996 PCT Filed Nov. 16, 1996 PCT Pub. No. WO95/14845 PCT Pub. Date Jun. 1, 1995Transducer arrangement for use as receivers in acoustic borehole measurements, in particular for the purpose of geological steering, stratigraphic imaging and control during drilling of deviated and horizontal wells, whereby transducer sensitiv...

Methods are disclosed for preparing a highly active solid metallocene-containing catalyst system and its use in the polymerization of olefins. The catalyst system is prepared by creating a catalyst system solution by combining an aluminoxane with a metallocene having a substituent which has olefinic unsaturation in a suitable liquid to form a liquid catalyst system, conducting prepolymerization of...

The intention is to reduce the discoloration of cellulose and the breakdown of N-methylmorpholine N-oxide (NMMO) occurring on preparation and heating of a solution of cellulose in water and NMMO. This is achieved according to the invention by the solution containing 0.01 to 1%, preferably 0.1%, of H2O2 and 0.01 to 2%, preferably 0.1%, of a stabiliser for H2O2, preferably oxalic acid or salts there...

Un processo di realizzazione su semiconduttori di regioni impiantate a basso rischio di channeling, del tipo applicato a dispositivi elettronici a semiconduttore aventi almeno uno strato di silicio policristallino (7) ricoprente sia regioni (5) di isolamento, sia aeree (4) attive sensibili al fenomeno di channeling, prevede la successione delle seguenti fasi:- Mascheratura delle aree o regioni (8)...

The control process according to the invention is usable with high performance production processes for producing printed products by collecting, inserting and/or collating, e.g. with the aid of a drum (10). It comprises recording an image of the products being formed following each addition of a further component with a camera (K), comparison of the recorded image with a corresponding, stored cal...

A progressive die for shaping a consecutive series of discs from a strip of relatively stiff material, comprising a series of adjacent die stations including a slot cutting station, the slot cutting station including cutting means for forming at least one laterally extending slot between adjacent discs while leaving at least one narrow deformable bridge connecting the adjacent discs. The strip of ...

A flexible multi-parameter conductor cable having coaxially symmetric elongated zones for signal carrying conductor placement therein, comprising an electrically conductive inner shield defining an electrically shielded inner longitudinal zone symmetrically disposed along and defining a center of said cable for containing at least one of a first type of signal carrying conductor, and an electrical...

A self-adhesive label comprising a multilaminar label portion, a self-adhesive support piece which is carried on a backing of release material and on which the multilaminar label portion is disposed, a self-adhesive laminar material extending over, and adhered by its self-adhesive surface to, the multilaminar label portion thereby to form two self-adhesive edge portions thereof on opposed sides of...

A self-adhesive label comprising a multilaminar label portion, a self-adhesive support piece which is carried on a backing of release material and on which the multilaminar label portion is disposed, a self-adhesive laminar material extending over, and adhered by its self-adhesive surface to, the multilaminar label portion thereby to form two self-adhesive edge portions thereof on opposed sides of...

The present invention provides a means and method for securing objects onto mounts such as cards, windows, cones, columns and the like. The adhesive mount incorporates the use of pressure-sensitive adhesive covered by at least one release sheet. The release sheets are made of a thin and flexible material which can be rolled and peeled back upon itself. Guiding elements in some embodiments are supp...

A semiconductor laser device in which a housing (8) having an optical fiber (6) inserted therein is integrally secured to a header (2) having a semiconductor laser chip (1A) mounted thereon, the light emitting surface of the semiconductor laser chip (1A) and the end surface of the optical fiber (6) being opposed to each other, and a photodiode chip (1B) for detecting the signal light emitted from ...

In the prepn. of MgH2, finely-divided, highly reactive Mg (I) is added as hydrogenation catalyst to the finely-divided Mg to be hydrogenated and hydrogenation is carried out at a temp. of at least 250 deg.C and pressure of 0.5-5 MPa.

A method for monitoring various physical conditions of pneumatic tires, and to a tire including a monitoring device. More particularly, the invention relates to a method of monitoring tires which uses an active, self-powered programmable electronic device which is installed in or on the interior surface of a pneumatic tire or on a tire rim. This device can be used for monitoring, storing and telem...

The present invention relates to surface material (1) for absorbent articles such as diapers, sanitary napkines, incontinence guards and wound dressings, this surface material being intended to lie proximal to the wearer's skin in use. According to the invention, the surface material (1) includes a plurality of projections (2) on that side of the material which lies proximal to the wearer's skin i...

Macchina per formare pacchi (3) di fogli (2) fascettati, in particolare segnature, per mezzo di una fascettatrice (15) comprendente: un primo spintore (7) che sposta i pacchi (3) contro un fermo (10); mezzi (17, 20) atti a mantenere premuto il pacco (3) contro il fermo (10) quando il primo spintore (7) si scosta dal pacco (3) per ritornare nella posizione arretrata; ed un secondo spintore (13) che...

A disposable body fluids absorbent padding comprising a liquid-guiding fibrous sheet (6) interposed between a liquid-permeable topsheet (2) and a liquid-absorbent core (4) is intermittently fused to said topsheet (2) and integrally bonded together in the direction of a thickness defined between the upper surface of said topsheet (2) and the lower surface of said fibrous layer (6) at these fused sp...

In a method for manufacturing a thermoplasic pipe (46) a pipe-shaped blank having larger wall thickness and less diameter than the completed thermoplastic pipe is positioned in a cylindrical chamber. The blank is formed by being softened and expanded into engagement with the inner surface of the chamber. A sealing ring (64) is then mounted in an end portion of the plastic pipe by positioning the s...

In a method for manufacturing a thermoplasic pipe (46) a pipe-shaped blank having larger wall thickness and less diameter than the completed thermoplastic pipe is positioned in a cylindrical chamber. The blank is formed by being softened and expanded into engagement with the inner surface of the chamber. A sealing ring (64) is then mounted in an end portion of the plastic pipe by positioning the s...

In a method for manufacturing a thermoplasic pipe (46) a pipe-shaped blank having larger wall thickness and less diameter than the completed thermoplastic pipe is positioned in a cylindrical chamber. The blank is formed by being softened and expanded into engagement with the inner surface of the chamber. A sealing ring (64) is then mounted in an end portion of the plastic pipe by positioning the s...