Compounds having formula (I), wherein T is a polycycloalkylidene group (e.g., adamant-2-ylidene); R is a C1-20 alkyl, aralkyl or cycloalkyl group; and Y is a fluorescent chromophore (e.g., m-phenylene), produced by reacting a compound having formula (II) with an R-ylating agent (e.g., R2SO4) in the presence of an alkali metal alkoxide in a polar aprotic solvent. Also, compounds having formula (III...

A novel antibiotic complex designated BBM-2478 is produced by fermentation of an actinomycete strain J907-21 (ATCC 39417). The complex may be separated chromatographically into two bioactive components designated BBM-2478A and BBM-2478B. The BBM-2478A component displays both antibacterial and antitumor activity while the BBM-2478B component has antibacterial activity.

A hydrogel plastic article such as a soft contact lens is tinted by a water-insoluble vat dye which is physically locked into the hydrogel polymer as aggregates that are not individually discernible to the naked eye, and do not protrude beyond the surface of the article. In a soft contact lens, the aggregates may be concentrated near its convex face and only in an area approximating a human iris.

A tape cassette with tape reels mounted therewithin having an opening portion formed in one side of the tape cassette and a notched portion formed in the lower surface of the cassette in a position adjacent to the opening portion, wherein a tape wound round the tape reels is passed along the opening portion, characterized by the combination therewith of an improved construction comprising a front ...

There are disclosed novel compounds of formula (I) wherein R<1> is hydrogen or optionally protected hydroxy; R<2> is alkoxy, optionally protected hydroxy, oxo or optionally O-substituted oximino; R<3> is hydrogen, optionally protected hydroxy,or a group 4 min -( alpha -L-oleandrosyl)- alpha -L-oleandrosyloxy or alpha -L-oleandrosyloxy wherein the terminal hydroxy group is optionally protec...

A metal can end (10) has a metal pull tab (16) attached to a score-defined detachable portion (15) of the can end by direct welding of protective polymer coatings (19,20) whose surfaces at least are derived from the same monomer and which are provided on the upper side of the can end and the under side of a shank portion (18) of the pull tab. The coatings may be composite films each comprising an ...

Method and apparatus for in-band, video broadcasting of commands to interactive devices are described. Control data are encoded by subliminally modulating, prior to the remote, composite video broadcast of video program material, a selected sequence of video image fields. The resulting modulated video fields within the viewing area of a television, each having alternately, proportionately raised a...

PURPOSE:To provide the titled apparatus improved to be able to easily emboss a liner provided an undercut, by allowing a non-undercut specifying embossing tool and an undercut specifying embossing tool to be vertically movable relatively to each other. CONSTITUTION:Of embossing tools 62, 64, 66, the embossing tool 66 is defined as an undercut specifying embossing tool. When an embossing tool assem...

PURPOSE:To improve rotation efficiency and durability, by using Fe-Ni alloy to an elastic vibrating body and by using self-lubricating alloy to a moving body. CONSTITUTION:An ultrasonic motor is composed of a moving body 11 made of self-lubricating alloy, an elastic vibrating body 12 made of Fe-Ni alloy, a piezoelectric element 13, a vibration absorption member 14 comprised of felt, etc., and a mo...

The removal of dye in localised areas of a dyed cellulosic fabric is accomplished by contacting the fabric with a composition containing water, a cellulase enzyme and an enzyme compatible surfactant, under agitation.

Hygienic cotton panties, have knitted fabric covering a waterproof sheet of natural rubber in the crotch region. Pref. the covering includes elastic bands for retaining a sanitary napkin.

Apertured polymeric films for use as a liquid permeable facing material on absorbent products such as diapers and sanitary napkins is textured by a dual embossing process. The film is preferably embossed first with a pronounced, textile-like pattern, then embossed with a finely engraved finish roll to produce a thin, smooth film with a matte finish while retaining the appearance of the previously ...

PURPOSE:To easily discriminate a jaw interval capable of obtaining the max. occlusal pressure, by providing a jaw interval variable means interposed between both upper and lower jaws and capable of adjusting the interval therebetween and an occlusal pressure display means for detecting and displaying the occlusal pressure applied to said jaw interval variable means. CONSTITUTION:A base plate 19 an...

The present invention relates to a novel method of manufacturing a composite body (3), such as a ZrB2-ZrC-Zr composite body, by utilizing a carburization technique. Moreover. the invention relates to novel products made according to the process. The novel process modifies the residual parent metal which remains in a composite body (3), by exposing said residual metal to a carburizing environment. ...

This invention relates generally to a novel method of manufacturing a composite body. More particularly, the present invention relates to a method for modifying the resultant properties of a composite body, by, for example, minimizing the amount of porosity present in the composite body. Additives such as TaG, ZrC, ZrB2, VC, NbC, WC, W2B5 and/or MoO2B5 can be combined with a boron carbide material...

Self-supporting bodies are produced by reactive infiltration of a parent metal (10) into boron carbide (12) typically resulting in a composite comprising a boron-containing compound and metal. The mass to be infiltrated may contain one or more inert fillers admixed with the boron carbide (12), or at least one carbon donor material, to produce a composite by reactive infiltration, which composite c...

A device for filtering the lubricant oil used in vacuum pumps, to be directly installed on the pump, for continuous or discontinuous operation, and characterized in that the filter is of the tangential-flow type.

The invention provides the noninvasive testing of the elasticity of soft biological tissues for the diagnosing of physiological and pathological state in human and animals, by exciting the tangential oscillatory deformations on the surface of tissue in the frequency range of 0.5 - 30 kHz and by determining the velocity of the excited surface wave propagating along the vector of the initial displac...

1. Crosslinked material, having improved properties, obtained from copolymers of ethylene and of at least one alpha-olefine, characterized in that its gel factor is between about 95 and 99% and in that the said copolymers are chosen from amongst : (a) ethylene/propylene copolymers which comprise, if appropriate, up to 4 mol% of units derived from another alpha-olefine, have a density of between 0....

The signal processor includes a field or frame store (24). If a video signal having a non-standard relationship between its line frequency (fH) and its color subcarrier frequency (fSC) is processed, corresponding signal samples from an analog-to-digital converter (12) of successive fields or frames are misaligned in the store, leading to a degradation of the processed signal. A nonstandard signal ...