A foam extrusion apparatus and method in which extrudate is extruded into a sealed chamber which may be subjected to pressure variation such as a vacuum with the controlled shaping of the plastic being obtained by power driven rolls within the chamber downstream of the die. Because of the harsh environmental conditions within the chamber it is desirable that the shaping or forming rolls be driven ...

Agent for grinding coarse lime to be refined by grinding in an aqueous medium to a microparticulate size, consisting of water-soluble ethylenic polymer and/or copolymer, characterised in that, in order to increase the reactivity of the lime, the said agent consists of at least one acidic polymer and/or copolymer: a) made of at least one monocarboxylic ethylenic monomer, b) selected in the average...

Agent for grinding coarse lime to be refined by grinding in an aqueous medium to a microparticulate size, consisting of water-soluble ethylenic polymer and/or copolymer, characterised in that, in order to increase the reactivity of the lime, the said agent consists of at least one acidic polymer and/or copolymer: a) made of at least one monocarboxylic ethylenic monomer, b) selected in the average...

Particulate material eg. sand (20) is continuously coated with a consolidatable resin composition (26) and formed as a suspension in a gelled aqueous carrier liquid (10) for transport (42) to a subterranean zone in which the sand is consolidated. In the method, substantially continuous streams of a gelled aqueous carrier liquid (10), uncoated particulate material (20), a resin composition (24) whi...

A prosthetic device prepared by curing an intimate mixture of an addition-polymerisable composition and a particulate inorganic solid which provides up to 80% by volume of the prosthetic device. The prosthetic device has a flexural modulus similar to the boney tissue which it contacts in use.

Anthracycline glycosides of the formula (I) I wherein one of R1 and R2 is hydrogen and the other of R1 and R2 is hydroxy, each of R3, R4 and R5 is independently selected from the group consisting of hydrogen and hydroxy and X is hydrogen or trifluoroacetyl, with the provisos that R4 and R5 are not simultaneously hydroxy and that if R3 is hydroxy, then X is hydrogen, which are useful i...

Organic amide compounds of the formula wherein R1-CO is a residue of a carboxylic acid with the proviso that the carboxylic acid is not a natural fatty acid normally bound to nitrogen of nitrogenous lipids, R2 is a hydrogen atom, a C1-7 alkyl group, or a C4-7 cycloalkyl group, and R3-N is a residue of a nitrogenous lipid. The compounds are useful in increasing or stimulating the in vivo ...

The invention relates to a process for the production of compounds of the formula (I) in which R is hydrogen or optionally substituted alkyl, alkenyl, aralkyl or aryl, by microbiological transformation of (X) follow by catalytic hydrogenation. The compounds obtained are useful for the treatment of diabetes, hyperlipoproteinaemia and adiposity which comprises aerobically c...

PURPOSE: To prevent unequal display and operation defect by preparing a dispersion for electrophoresis display by using particulates of a diameter within a specific range. CONSTITUTION: The particulates having the diameter in a range of 0.001 to 0.1&mu m are used as the electrophoretic particulates constituting the dispersion. Then, the particulates make so-called Brownian movement in the liquid a...

Individually controllable gripper elements are successively spacedly arranged at a ball-and-socket joint-link chain revolvingly driven and guided in a guide channel. At the leading end region of an overhang member of each gripper element there is seated a clamping jaw and at the trailing end region there is arranged a bushing. A shaft is rotatably and displaceably mounted within the bushing. A cla...

PURPOSE:To unitize multiple functions by sealing a plurality of pellets in a sole package, and electrically connecting parts of the electronic circuits of the pellets to each other in the package. CONSTITUTION:First and second pellets 11, 12 formed substantially in a rectangular flat shape are disposed adjacently on a tab 8, and bonded by an adhesive material layer 10 made of silver paste, etc. A ...

PURPOSE:To provide fatigue resistance such as of a passivated resistor and also improve electric and thermal characteristics by specifying the thickness of a non-passivated resistor. CONSTITUTION:A heating element resistor 22 is created on a semiconductor structure 26 including a silicon substrate 28 and a SiO2 thermal barrier layer 30 with a thickness of about 15,000Angstrom . A resistance materi...

The brake lever is mounted on a handlebar of a bicycle. A pivot axis (4) of the brake lever body is extended at a right angle to the axis (C) of a handlebar inserting bore (5) in a bracket (2). Thus the centre (O) of pivotal movement of the brake lever and the axis of the handlebar come closer to each other.

PURPOSE: To minimize distortion in the wave front of coherent radiation by letting the individual rays of the coherent radiation, directed to a laser medium, through various heat regions, and thereby minimizing the difference in optical path length between the rays. CONSTITUTION: A laser medium 102 has a regular-polygonal cross section perpendicular to the longitudinal axis line 104 and an optical...

A polarizing optical fiber has a core formed of a plurality of layers of dielectrics having different refractive indices. The dielectric layers form a composite structure having different refractive indices for light of different polarizations. The differing refractive indices cause the polarization states of light guided by the fiber to be non-degenerate so that energy ordinarily will not couple ...

A snap fastener component strip is disclosed as including a series of like square plastic components interconnected by molded plastic portions which are reinforced by continuous polymer monofilaments embedded in the components to provide a strong, flexible strip of components particularly suited to handling by automatic machinery. A method of molding such strips is also disclosed.

Certain enol ether derivatives of oxicams (1,1-dioxides of N-heteroaryl-4-hydroxy-2-methyl-2H-1,2-benzothiazine-3-carboxamides and N-heteroaryl-4-hydroxy-2-methyl-2H-thieno[2,3-e]-1,2-thiazine-3-carbox amides) are useful as prodrugs of these antiinflammatory compounds.

PURPOSE:To keep shrinkage of sheets,which develops at welding, to minimum by developing the shrinkage only in the clearances, with which jigs are mounted at both sides of a heating element by a method wherein pulse waves are applied across fluoroplastic sheets, each of which is brought into contact with the heating element and the jig mounted on one of both the sides of the heating element with sa...

A container (21), and a method and apparatus for producing the container from a tubular blank of polyethylene terephthalate or similar material, according to which a polyethylene terephthalate blank is stretched at least about 3-fold to produce a preform (20). In an axial section through the preform, the contour length substantially corresponds to the contour length in an axial section through the...

Compounds of formula I (I) in which R is H, or an aliphatic or aromatic radical, R1 is alkyl, R2 is alkyl, alkoxy, aryl, aryloxy, aralkyl, alkaryl, aralkyloxy, alkaryloxy, alkaralkyl or alkaralkyloxy, and one of R1 and R2 is H and the other has the meaning given above. These compounds are intermediates for the preparation of herbicidal sulfonylureas.