In an electromagnetic operating mechanism for a gas exchange valve of an internal combustion engine wherein two control magnets are arranged in spaced relationship above the valve and an armature is axially movably disposed between the control magnets and and actuator rod extends from the armature through one of the control magnets to engage the valve, two compression springs are arranged outside ...

A hardfacing 16 for teeth 14 and other surfaces of a milled tooth rock bit 10 comprises steel in the range of from 20 to 50 percent by weight, and filler in the range of from 50 to 80 percent by weight. The filler is comprises 10-100% spherical cast tungsten carbide particles which may be in mixture of other tungsten carbide particles such as spherical cemented, crushed cemented, crushed cast and ...

A fluorine-containing hydrocarbon composition comprising the following (1) and (2), wherein the proportions of (1) and (2) in the composition are such that (1) is 100 parts by weight, and (2) is from 0.001 to 10 parts by weight: (1) at least one pentafluoropropane selected from 1,1,1,3,3-pentafluoropropane and 1,1,2,2,3-pantafluoroproapne, (2) the following (i) or (ii): (i) a combination of (a) an...

Monolayer and multilayer non-oriented polyester films comprising of at least one layer of an amorphous heat-sealing polyester wherein the heat-sealing polyester consisting essentially of terephthalic acid, ethylene glycol, and about 7-15 mol % cyclohexanedimethanol. The heat-sealing polyester has a heat of fusion greater than 0.5 cal/g and is sufficiently crystallizable to allow the drying of mixt...

Formulation comprises a particulate medicament (I) e.g. salmeterol, salbutamol, fluticasone propionate, becolomethasone dipropionate and a fluorocarbon or hydrogen-contg chlorofluorocarbon propellant. Also claimed are the prepn of the surface-modified medicament and a canister for delivering metered doses of the aerosol formulation. Pref., (I) is salmeterol xinafoate (Ia); salbutamol sulphate; flu...

Elastomer composites are produced by novel continuous flow methods and apparatus in which fluid streams of particulate filler and elastomer latex are fed to the mixing zone of a coagulum reactor to form a mixture in semi-confined flow continuously from the mixing zone through a coagulum zone to a discharge end of the reactor. The particulate filler fluid is fed under high pressure to the mixing zo...

This invention relates to a process for producing phenolic foams from phenolic resins using a blowing agent comprising 1,1,1,4,4,4-hexafluorobutane. These blowing agents are much more environmentally friendly than the conventional chlorofluorocarbons and do not adversely affect the properties of the foams produced.

Liquid impervious, biodegradable films are disclosed. In particular, the films comprise a blend of an interpenetrated network of destructurized starch with ethylene/acrylic acid copolymers or ethylene/vinyl alcohol copolymers, and an aliphatic polyester such as polycaprolactone. Diapers, sanitary napkins, pantiliners, and the like, containing backsheets prepared from the foregoing materials are al...

A method for reconstituting superabsorbent polymer fines comprising the following steps: wetting the superabsorbent polymer fines sufficient to form a continuous amorphous gel of the fines; grinding the gel; and drying the gel which has been ground to form a superabsorbent polymer material. Drying can optionally be followed by grinding and classification of the reconstituted superabsorbent polymer...

A method for providing coated polycarbonate film that provides: (1) controlled surface finish, printable, UV cured coating on the surface of a polycarbonate film, and (2) irradiation through the polycarbonate film without degradation of the uncoated surface.

A polyolefin film having a base layer of a polypropylene-based resin including microvoids formed by stretching a polypropylene-based resin containing the beta-form of polypropylene, and a heat seal layer on the base layer. When such films are heat sealed, the heat seal area becomes transparent, thereby providing an indication of seal integrity.

Biaxially oriented polyolefin films having a thickness of not more than 50 mu m having a layer of a polypropylene-based resin with microvoids therein, the microvoids having been formed by stretching a web containing the beta-form of polypropylene at an area stretch ratio of at least 15:1. These films have shown particularly uniform opacity when compared with films of a similar thickness which have...

Polymeric films including a layer of propylene polymer resin having microvoids therein, the microvoids having been formed by stretching a web containing the beta-form of polypropylene, have shown low static cling when being unwound from rolls in labelling operations and also during destacking of pre-formed labels. The invention provides labels formed from such films.

Biaxially oriented polyolefin film having a thickness of at least 50 mu m including a layer of a polypropylene based polymer resin having rnicrovoids therein, the microvoids having been formed by stretching a web containing the beta-form of polypropylene at an area stretch ratio of at least 15:1. These films have shown good performance characteristics during film conversion, for example, printing.

Biaxially oriented polyolefin films having a polypropylene-based resin layer containing microvoids produced by orienting the beta-form of polypropylene, and at least one olefin copolymer outer layer thereon, the film having been biaxially stretched at below the melting point of the olefin copolymer of the said outer layer. Such films have high gloss.

Polypropylene random copolymer resins and metallized, heat sealable cast films produced from such resins include (1) a polypropylene- alpha -olefin random copolymer such as a propylene-butene-1 or propylene-ethylene random copolymer and (2) an additive package including a synthetic amorphous silica, a hindered phenolic antioxidant, a processing stabilizer and an acid acceptor. The compositions acc...

A találmány tárgyát őlyan tisztító, törlőeszköz képezi, amely egyhőrdőzóanyagból és erre felvitt víz a lipidben eműlzióból áll, melyűtóbbi 2-60% főlytőnős, megszilárdűlt lipid fázist, abban diszpergált39,97% belső vizes fázist és hatásős mennyiségű szerves pőliszilőxán-pőlialkilén eműlgeálószert tartalmaz. A találmány tárgya tővábbáeljárás az eműlzió hőrdőzóanyagra történő felvitelére. A találmány...

Methods for multiplex amplification of target nucleic acid sequences using a single pair of primers. Defined sequences are appended to the ends of multiple target sequences as part of the amplification reaction so that no steps in addition to amplification are required. The target sequences with the appended defined sequences need not be isolated prior to amplification. In one embodiment for coamp...

In accordance with the invention, a method of depositing substituted fluorocarbon polymeric layers exhibiting a high degree of cross-linking is presented. Formation of a substituted fluorocarbon polymeric layer includes placing a substrate into a reactor and, while maintaining the reactor pressure below 100 torr, introducing a process gas into the reactor. Optionally, the substrate is biased. The ...

PCT No. PCT/EP90/02148 Sec. 371 Date Jul. 28, 1992 Sec. 102(e) Date Jul. 28, 1992 PCT Filed Dec. 11, 1990 PCT Pub. No. WO91/09685 PCT Pub. Date Jul. 11, 1991.A process utilizing a pigmented aqueous basecoat composition which contains as the film-forming material a water-thinnable emulsion polymer. The water-thinnable emulsion polymer is prepared in a two-stage emulsion polymerization. In the first...