The compounds in question are of the nonionic type. These compounds are usable in contrast products.

Cemented carbide compositions useful for rock drilling and allied applications are described. These compositions comprise about 80 to about 97% by weight of refractory particles of, for example, tungsten carbide. The particles are bonded within an alloy matrix of between about 5 and about 50% nickel, sufficient carbon to avoid the formation of detrimental carbon deficiency or excess carbon phases ...

An apparatus and method for assembling battery cell elements having a plurality of electrode plates Of alternating polarity separated by a continuous interleaved insulating sheet. The apparatus includes a separator sheet supply station; a creaser for forming transverse creases in a length of separator sheet at longitudinally spaced fold points; a first plate loader for positioning a first set of e...

A portable roof edge seaming apparatus for aiding in the chemical welding of the edge of a sheet of vinyl roofing membrane to either an overlapped sheet thereof or to a vinyl clad metal edge member includes a fleece or cloth lined skid plate, a solvent reservoir, a brush member mounted forward of the skid plate for applying solvent from the reservoir to an area between the members to be welded, an...

Disclosed are a polyethylene terephthalate film having the sum of F-5 values in longitudinal and transverse directions of 3500 to 5000 kg/cm<2>, absolute shrinkages in longitudinal and transverse directions at 100 DEG C of up to 2.5% and an amorphous orientation factor of - 1.5 to 0.5, a process for the production of the film and a magnetic recording medium having the film as a base. A polyethylen...

A gasket sheet obtained by the milling and vulcanization of 50-85% by weight of a fibrous material, 10-50% by weight of a rubber material and at least 1-23% by weight of a water-insoluble and -swelling substance. The gasket sheet may be a one layer or a three layer sheet.

The present invention is directed to a combustion modified flexible polyurethane foam produced by reacting: (A) an organic polyisocyanate, (B) a polyether polyol selected from the group consisting of (i) a polymer polyol, and (ii) mixtures of said polymer polyol and a polyoxyalkylene triol having an OH number of from about 25 to about 40, (C) from about 80 to about 150 parts by weight of hydrated ...

A data compression interface is characterized by a memory system having an architecture configured from a first and a second serial memory connected in parallel. One memory serves during alternate frames as a data collection memory while the other serves during that same frame as an output memory.

A particular class of sulfolanyloxyalkyl-substituted organosilicone polymers are provided which comprise chemically combined monofunctional siloxy units (Mo) and difunctional siloxy units (Do) and, for every two moles of Mo, an average of from about two to about 100 silicon-bonded sulfolanyloxyalkyl groups (Q) and an average of from about 2 to about 30 silicon-bonded E DEG groups where E DEG is ...

PURPOSE:To improve the safety of a microcomputer by using a detection circuit for runaway of the microcomputer and therefore outputting a signal equal to the output signal obtained when a fault occurs. CONSTITUTION:A microcomputer 1 delivers a pumping signal (b) of a fixed cycle T as long as the computer 1 has the normal working. A runaway detecting circuit 11 sets an output signal (c) as ''1'' wh...

PURPOSE:To detect quickly a faulty loop and to prevent a secondary fault by comparing the contents of a node under execution with the input information given previously and at the same time starting a loop detection mechanism for each prescribed period of time. CONSTITUTION:A loop detecting part 5 consists of a comparison part 5-1, a loop check mode part 5-2, an input information memory part 5-3 a...

PROCESS FOR MAKING POLYURETHANE FOAM A flexible polyurethane foam article with regions of different hardness is made by introducing into a mould a foam formulation giving a foam of a given hardness and then introducing a foam formulation giving a foam of different hardness directly onto the first foam formulation at a time corresponding to a volume expansion in the range 100% to 2300%.

The invention relates to a process for preparation of lightweight, insulating, supple, rigid or halfrigid elements, wherein it essentially comprises impregnating a porous supple material having an internal structure with preferentially open cell, with the desired quantity of a solution of a compound selected from the group comprising isocyanates, and having consequently in its formula at least a -...

A motor vehicle control system is provided for use with a roadway having a plurality of magnetic lane marking elements located in a pattern indicative of the center or of the lateral edges of the lane. The respective markings are picked up by an array of sensing means positioned on the vehicle and determining the relative position of the vehicle with respect to the magnetic markings. The device al...

A prime coated oriented polyester film material is disclosed wherein the primer coating consists essentially of a crosslinked copolymer containing at least about 50% by weight of acrylic and/or methacrylic monomers and from about 1% to 15% by weight of a comonomer capable of inter-molecular crosslinking upon the application of heat, and from 0 to about 49% by weight of one or more halogen-free mon...

A pneumatic tire and a method of constructing a tire bead for the same, in which the tire has a bead portion which is reinforced by a bead core of wire running around the bead portion and the wire is housed in a circular elastomeric support which forms a cradle in which the wire is located. The bead can be made by winding wire around the preformed elastomeric cradle.