Azeotropic compositions made up of: a) one compound selected from (1) about 26 to about 88 % by weight perfluorohexane, (2) about 4 to about 50 % by weight 1,3-dioxolane, or (3) about 64 to about 87 % by weight 1,1,1,4,4,4-hexafluorobutane; and b) one compound selected from (1) about 20 to about 74 % by weight 2-methyl butane, (2) about 13 to about 53 % by weight n-pentane, (3) about 75 to about 9...

Methods of making cylindrical structures with cooling channels, such as, for example, combustor/transition pieces for gas turbines having a double wall with a plurality of cooling channels, both axially and, in some cases, circumferential cross-flow passages positioned between the structure's inner member and the outer member to provide cooling air thereto, are disclosed. The cooling channels are ...

Verfahren zur Herstellung einer Lauffläche (1) eines Fahrzeugluftreifens mit aufgelegtem Schulterabdeckstreifen (2,3) wobei in einem Extruder (4) ein kontinuierliches Schulterband erzeugt, im nachgeschalteten Kalander (7,8) zur Dickeneinstellung kalandriert und danach auf den Schulterbereich der Lauffläche (1) aufgelegt und entsprechend der Umfangslänge der Lauffläche abgelängt wird. ; A me...

A puncture preventive sealant is capable of reducing the content of cellulose fibers for suppressing the cost of the sealant while keeping a high sealing performance due to the cellulose fibers. A sealant 8, which is filled in a sealant chamber 7 defined in a tube 2 adjacently to an air chamber 3, contains synthetic fibers and cellulose fibers in a solvent. The content of the synthetic fibers is i...

To provide a tube tire which can avoid damage to a tube in charging a sealant, and can prevent the sealant from plugging an air valve of the tube. A first tube half 4i and a second tube half 4o having the same side and circular cross sections are joined together in the condition of raw rubber, and next vulcanized, thereby forming a tube 2 consisting of the two tube halves 4i and 4o integrated in a...

A method for determining the presence of an analyte in a fluid is described along with an apparatus specifically designed to carry out the method. the method involves taking a reflectance reading from one surace (15) of an inert porous matrix (11) impregnated with a reagent that will interact with the analyte to produce a light-absorbing reaction product when the fluid being alaysed is applied to ...

In order to prevent data corruption and inconsistency caused by incorrect assumption regarding a presumably failed node and/or program, a fail-fast timer mechanism enforces deadlines, i.e. enforces timeliness in programs. For example, given a program which needs to ensure a given code segment is executed within a specified deadline, the program arms a fail-fast timer before executing the code segm...

PCT No. PCT/EP90/00581 Sec. 371 Date Dec. 21, 1990 Sec. 102(e) Date Dec. 21, 1990 PCT Filed Apr. 12, 1990 PCT Pub. No. WO90/12841 PCT Pub. Date Nov. 1, 1990.The present invention is related to polyurethane foam materials, pores thereof being free of halogenated hydrocarbon compounds, in particular free of CFCs, and a process for producing the same wherein no halogenated hydrocarbon, in particular ...

According to the surface inspecting apparatus in the present invention, an inspecting width gate signal is generated in a procedure that when the subject matter is subjected to the scanning via the light beam, the counting means digitizes the detected position of both the front and rear ends of the subject matter, then the operating means calculates values which indicate the positions included wit...

Methods of making sintered parts from a metal powder composition that contains an amide lubricant are provided. The composition comprises an iron-based powder and a lubricant that is the reaction product of a monocarboxylic acid, a dicarboxylic acid, and a diamine. The composition is compacted in a die, preferably at an elevated temperature of up to about 370 DEG C, at conventional compaction pres...

A polyester film contains at least 0.005% by weight of calcium carbonate particles and the internal haze H(%), face orientation coefficient fn or the difference DELTA n between the refractive indices in the machine direction and in the transverse direction have a specific relationship, namely $wherein\; fn\; =\; [(nMD\; +\; nTD)/2]\; -\; nZD\; DELTA\; n\; =\; nMD\; -\; nTD\; wherein\; nMD\; means\; the\; refractive\; ind...$

A closed cell, rigid, polymer foam comprising the reaction product of a polyisocyanate and an isocyanate-reactive compound in the presence of (a) a foaming agent, (b) at least about 2 percent by weight of carbon black, based on the weight of the polymer in the foam, and (c) a capped polyoxyalkylene compound which helps bring about a uniform dispersion of the carbon black throughout the foam so tha...

A signal processing method and apparatus are described for demultiplexing selected components (especially audio signals) from a multiplexed data stream. Each of the desired channel components has a unique identification code detected by a processor parsing the contents of a received data buffer between the disc reader and the demultiplexer. The demultiplexer is set up to output received data chann...

A polyester article is described which comprises a polyester polymer produced using a catalyst obtainable by reacting an alkyl titanate or an alkyle zirconate, an alcohol, a 2-hydroxy carboxylic acid and a base. The article preferably takes the form of a film or a bottle. Also described is a process for the production of the article.

Process for the preparation of a rigid polyurethane or urethane-modified polyisocyanurate foam blown with a hydrochlorofluorocarbon, hydrofluorocarbon or hydrocarbon in the presence of tetramethylsilane as co-nucleating/co-blowing agent.

The invention provides a bicarbonate-containing medical solution package comprising a gas-permeable plastic container holding a bicarbonate-containing medical solution and a gas-impermeable plastic packaging member accommodating the gas-permeable plastic container, with a carbon dioxide atmosphere having been established in a space defined by the container and packaging member and the space contai...

The present invention concerns compacted and optionally presintered bodies, which are prepared from metal powders and which have densified surfaces, obtained by shot peening or rolling.

The use of a water alcohol solution mixed with perchloroethylene as foaming agent for the production of foamed polyurethane is disclosed. Particularly described is the use of an alcoholic distillate mixed with perchloroethylene. The alcoholic content of the solution and the distillate is between 30 and 90 degrees. Also the amounts of such agent to be used in the mixture are indicated as parts by w...

A fluid extraction apparatus comprises a passage 20 for the pumped flow therealong of a first fluid, for example air. A fluid flow area control device in the form of an apertured plug 22 is present in the passage. An inlet 26 to the passage 20 is provided at or downstream of the downstream side of the plug 22. When, in use, the first fluid is pumped along the passage through the aperture 23 of the...

Vulcanised rubber prod. consisting of a bonded combination of a vulcanised rubber and a thermoplastic elastomer (TPE), the rubber as well as the TPE comprising a functional polymeric cpd., which cpds. are reactive with each other. Also claimed is a process for the manufacture of a rubber prods..