Abstract: A process for forming a molded article having a multilayer structure which comprises successively injecting melts of at least two materials into the cavity portion of a mold, solidifying a part thereof in the cavity portion to form the multilayer structure, characterized in that as a first step, one of the molten materials is injected into the cavity portion and the portion of the injected molten material contacting with the mold surface is solidified to a predetermined thickness to form a skin layer; as the second step, the next molten materials is fed into the cavity, the unsolidified portion of the molten material previously fed is pushed out of the cavity and a part of the thus fed molten material is cooled and solidified from the surface of the mold to form the next layer; and the procedure of the second step is successively repeated using the remainder of the molten materials alternately, and the molded article produced by the above molding process.

Abstract: The present invention provides water-soluble, extended-release chemical formulations, in tablet form, for urine pretreatment, that require minimal, if any, use of a binder component, yet are non-dusting, pliable, structurally strong, and not weakened by exposure to aqueous streams. The present invention also provides a simple and reliable method for controlled dispensing of such tableted formulations into a liquid stream that is particularly advantageous for use in micro-gravity environments, such as spacecraft urinal systems.

Abstract: Polyamide coating compositions that demonstrate strength and toughness, flame and corrosion resistance and resistance to hydrolysis and thermal degradation at coating thicknesses of less than or equal to 0.25 mm or 0.15 mm are provided. Such coating compositions are extremely useful for coating wires or cables that are housed in automotive electrical harnesses.

Abstract: This invention relates to a simple and reliable screening method for determining an individual's susceptibility to breast, ovarian, colon or prostrate cancer. This invention also relates to a test kit for use in conjunction with this method. The inventive method targets a specific alteration of the BRCA protein and identifies a non-invasive source of normal cells that express this protein.

Abstract: The present invention relates to a thin printing paper with a weight per unit area in the range below 49 g/m.sup.2 and which contains wood and which is provided with surface pigmentation and which incorporates a mixture of a swellable coating silicate (sodium bentonite) and, for the remainder, conventional coating pigments as the pigment and which, in addition, contains only bonding agent that is a natural organic bonding agent, essentially starch. Even if only lightly calendered, the paper is equally well suited for rotogravure printing and for rotary offset printing. It is preferred that the paper also contain a proportion of processed fibres obtained from old-paper.

Abstract: The present invention provides water-soluble, extended-release chemical formulations, in tablet form, for urine pretreatment, that require minimal, if any, use of a binder component, yet are non-dusting, pliable, structurally strong, and not weakened by exposure to aqueous streams. The present invention also provides a simple and reliable method for controlled dispensing of such tableted formulations into a liquid stream that is particularly advantageous for use in micro-gravity environments, such as spacecraft urinal systems.

Abstract: An injection moulding process for moulding a material in a mould having a mould cavity and at least one channel communicating with the mould cavity, each channel entering the mould at a respective mould inlet includes the steps of heating inner surface areas of the mould to a temperature above the heat distortion temperature of the material; supplying the molten material into the mould by way of at least one channel and subjecting the molten material to a propelling force, sufficient to propel it through the channel into the mould; causing the molten material in the mould to solidify; applying periodic forces to the material in the mould at a plurality of spaced-apart regions, first and second of the regions being located either side of molten material in the mould cavity, the periodic force being applied with a difference in phase so as to cause shear of molten material within the mould cavity between the first and second regions; cooling the mould below the heat distortion temperature of the resin while or

Abstract: Polyamide coating compositions that demonstrate strength and toughness, flame and corrosion resistance and resistance to hydrolysis and thermal degradation at coating thicknesses of less than or equal to 0.25 mm or 0.15 mm are provided. Such coating compositions are extremely useful for coating wires or cables that are housed in automotive electrical harnesses.

Abstract: Metal braid reinforced convoluted metal hose assembly is provided where the metal braid is mechanically secured or cinched between an adaptor and or retainer and which demonstrates increased structural integrity in this interface area when compared to hose assemblies employing welded braid-to-adaptor attachments.

Abstract: Articles for use with security documents are disclosed which include planchettes and security threads that comprise a plastic substrate having at least one security feature employing soft magnetic metal located thereon. Preferred articles comprise at least two security features where a first security feature is made up of an optionally repeating pattern of soft magnetic metal adapted to generate a signal or a series of signals in an interrogation field applied by a detection system for remote detecting and optionally for remote reading or identifying the article. A second security feature is a public security feature that comprises magnetic and/or non-magnetic metal formed indicia. The first and second security features of this invention can be coextensive features.

Abstract: A microbial process for detection of toxic substances. The bacterial luminescence test so far used to detect toxic substances is extremely fast in its performance and reacts with very high sensitivity to heavy metals such as mercury and lead. However, that is not the case for other toxicologically relevant heavy metals such as cadmium and chromium. The inhibitory effect of toxic substances on the phosphotransferase system of bacteria, in particular, the E. coli mutant 1219 bgl+, is set forth as proof for the presence of toxic substances in samples. This test method responds with high sensitivity to the presence of the heavy metals cadmium and chromium. The test process constitutes a complement to the bacterial luminescence test and makes it possible to quickly exclude the presence of toxicologically relevant concentrations of cadmium and chromium in such cases where only a slight or no effect at all is indicated on the phosphotransferase system.

Abstract: The present invention provides water-soluble, extended-release chemical formulations, in tablet form, for urine pretreatment, that require minimal, if any, use of a binder component, yet are non-dusting, pliable, structurally strong, and not weakened by exposure to aqueous streams. The present invention also provides a simple and reliable method for controlled dispensing of such tableted formulations into a liquid stream that is particularly advantageous for use in micro-gravity environments, such as spacecraft urinal systems.

Abstract: A high performance ionomer assisted electrolytic cell electrode structure is provided. Such structures operate effectively at catalyst loadings as low as 0.10 mg/cm.sup.2 and demonstrate increased structural integrity without ionomer degradation. The inventive structure comprises a hydrated ion exchange membrane having a first surface and a second surface and at least one catalyst ionomer layer bonded to the first and/or second surface of the membrane that comprises hydrated and swollen ionomer solids bonded to discrete catalyst particles.

Abstract: Security strips or threads are provided which are suitable for at least partial incorporation in and/or for mounting on security documents or means for identification, such as labels, and which comprise the following deposited or laminated layers: at least one layer of a plastic substrate; a layer of a first security detection feature made up of identifying marks or indicia; and a layer of a second security detection feature comprising a generally invisible, optionally repeating pattern. The repeating pattern comprises at least one very thin conductive region and at least one electrically isolating region. Also provided is a security paper having such a security thread at least partially embedded therein and/or mounted on a surface thereof and a process for making the security paper. Further provided is a method of verifying the authenticity and reading the coded information of a security paper employing such a security thread.

Abstract: This invention relates to the discovery that during operation and/or shutdown of electrochemical and gas generating devices corrosive materials are released from hardware and components employed therein and that such materials are principally responsible for observed pitting and perforation failure of the metallic hardware, including the separator/collector sheets, of these devices that serve to partition and hermetically seal compartments that support a hydrogen atmosphere. This invention therefore particularly relates to a method for improving the reliability of such devices by reducing brittle failure and perforation failure of these separator sheets by providing a composite separator sheet made up of a layer of a material resistant to molecular hydrogen embrittlement adhered to a layer of a corrosion resistant material.

Abstract: The present invention provides water-soluble, extended-release chemical formulations, in tablet form, for urine pretreatment, that require minimal, if any, use of a binder component, yet are non-dusting, pliable, structurally strong, and not weakened by exposure to aqueous streams. The present invention also provides a simple and reliable method for controlled dispensing of such tableted formulations into a liquid stream that is particularly advantageous for use in micro-gravity environments, such as spacecraft urinal systems.

Abstract: Optionally antimicrobial, hydrophilic coatings having reduced or low solids contents are provided. Such coatings are extremely useful for coating heat transfer surfaces of condensing heat exchangers to provide wetting and wicking and optionally to provide microbial growth inhibition where such coatings have improved coating properties and are, upon cure, less prone to cracking, flaking and particle generation.