An optical diffraction grating element comprising diffraction gratings having a configuration in which grooves and flat lands are successively alternately formed, wherein the diffraction gratings have the same groove depth, groove width and groove tilt angle in order to obtain a constant 0th-order diffraction efficiency and first-order diffraction efficiency in the optical diffraction grating elem...

Reinforcing fibres made from polyolefin and polyolefin derivatives, the fibres having a thickness of 10-100 mu m and containing inorganic particles of a size of 1-10 mu m in an amount of at least 12% by weight, calculated on the total fibre weight, the particles being embedded in the polyolefin or polyolefin derivative, substantially none of the particles being exposed at fibre surfaces. The ino...

A leadfree plate-shaped roof flashing material comprises a sandwich structure in which a stress damping and stabilizing layer (1) of ductile material is completely covered on one side and at least partly covered on the other side by preferably metallic foil sheetings (2, 3), e.g. of aluminium foil, designed with densely positioned flattened folded sections (4) having such a form, e.g. as closed in...

A self-diluting feedwell for a thickener or settling tank includes a delivery pipe for providing an influent feed stream of slurry, a nozzle for directionally discharging the influent feed stream, and an eductor structure including a launder zone for receiving the nozzle discharge, a throat zone for creating a reduced pressure area for eduction of diluent into the launder zone, and a discharge zon...

A sanitary napkin having a gas permeable nonwoven baffle is provided in which a composite baffle is formed by joining webs of a meltblown polyolefin and a spunbonded polyolefin with the spunbonded polyolefin web providing a surface for garment attachment adhesive reception.

A disposable absorbing material composition comprises a liquid permeable top sheet, a liquid impermeable back sheet, a super absorbent polymer and a fluff pulp, and is characterized by adding a porous bioceramics and a flavonoid extracted from a plant to the partial or whole elements of the absorbing article in an amount of 0.1-20 % by weight based on the weight of the absorbing mat...

A video input signal is stored in a memory and read twice during a line-interval to provide a processed video output signal having a doubled line rate for display on a display device having a doubled horizontal sweep rate thereby providing a progressively scanned image having reduced visibility of line structure. The last address written in memory is used to control the starting time of the second...

Shaped articles are made from blends of rubber and plastic in which the rubber is in the form of discrete vulcanized particles dispersed in the plastic. After shaping the articles, they are exposed to free-radical crosslinking which converts the blends from thermoplastics to thermosets. Certain of the blends are new and form part of the invention.

PURPOSE:To obtain a tracking error signal of the zero-order beam unchanged by a change in a tangential skew angle to a recording medium by adopting a shape of semiconductor laser element where both side beams of a reflected beam of the recording medium is not made incident to an irradiated end face. CONSTITUTION:When a straight line tying a center beam La and both side beams Lb, Lc toward the semi...

Sequentially-produced polymer particles comprising a core bearing at least two lobes may be useful in aqueous binder, coating and adhesive compositions. These sequentially-produced polymer particles may contribute sufficient film-build and ICI viscosity to the compositions such that the amount of thickener or other rheology modifier usually found in binder, coating and adhesive compositions may be...

A method of providing a bonded article such as nonwoven protective article for agricultural crops is disclosed. The nonwoven article is produced by joining a plurality of nonwoven sheets together along their longitudinal edges to provide a nonwoven article of increased width. The sheets are joined by forming a combination hot melt adhesive/sonic bonded seam between abutting edges. The combination ...

To avoid loss of volatile oils or cause change of color or excessive loss of moisture in raw vegetable product such as herbs or spices, the product is sterilized for human consumption by placing the product in a jacketed container (12) where the temperature of the interior walls of the container is elevated to approximately the sterilizing temperature, the product is then charged to the interior o...

An intravascular catheter (10) designed to apply a liquid medicament or other substance to a stenotic lesion as the blood vessel is undergoing dilatation to facilitate the restoration and long-term maintenance of patency to the blood vessel. It comprises three concentrically arranged flexible plastic tubes (12, 14, 16) and a pair of concentrically arranged expander members (22, 30) located at the ...

A catheter is provided having a main section with proximal and distal ends and including an inner tube. The outer tube extends along a longitudinal axis and combines with the inner tube to define an annular intake lumen, and a tubular tip section is included having a smaller cross-section than the main section. The tip section has a return opening and a transition portion is at the distal end of t...

RBP File No. 680-060 A wax guard system, for use with an in-the-ear hearing aid, has a housing secured to the hearing aid shell and an insert which screws into the housing. The insert has a body having an internal passage therethrough, and a bridge extending across the exterior opening of the passage. The bridge is higher at its centre than at its ends and carries a thin domed disk which shields t...

The catalytic activity of a chromium oxide-based catalyst used in the production of chlorine by oxidation of hydrogen chloride gas with an oxygen-containing gas is regenerated by impregnating it with an aqueous solution of chromic acid anhydride or of a chromium salt and then calcining the catalyst at a temperature not higher than 800 DEG C.

A process for forming a filter and the product filter are disclosed. The filter uses a porous metal substrate, preferably in the form of a tube, preferably formed of stainless steel particles having a diameter of from 30 to 100 micrometers and a pore size of from 1 to 10 micrometers. A slurry of metal oxide particles of from 0.2 to 1.0 micrometer diameter is applied to the porous metal substrate w...

A bumper fascia molding and method of making the same is accomplished by providing a trim strip with an overall T shape in cross section. The trim strip has a body portion and a stem. The trim strip is positioned onto a channel within the bumper fascia molding. A force is exerted on the decorative face to seat the trim strip in position in the bumper fascia molding. While the force is exerted, a s...

A composition is described which consists of a microemulsion of oil in a water/glycol solution containing certain thickening agents, emulsifiers, carboxylic acids having from 10 to 18 carbon atoms and alkanolamines to provide the desirable viscosity and shear stability needed to give a composition having effective de-icer and anti-icing properties.