A process and apparatus is provided in which aqueous based wastes are processed to remove solids, decant phase separated product, optimize chemically for solvent specific extraction, remove toxic metals and organics via solvent extraction and remove residual metals and organics via flocculation/filtration and adsorption with activated carbon. The system employs chemical optimization of the aqueous...

This application claims a method for using a dope solution that contains polybenzoxazole or polybenzothiazole polymer or copolymer. Fibers are prepregged with the dope, and the prepreg is be contacted with water or another coagulant to coagulate the polymer and form a matrix composite.

Fibers may be prepregged with a dope containing polybenzoxazole or polybenzothiazole. The prepreg may be contacted with water or another nonsolvent to coagulate the polymer and form a matrix composite.

Films containing polybenzazole polymer dissolved in a solvent can be mechanically stretched to provide biaxial orientation. The resulting dope film can be coagulated. The polymer film has improved properties in the direction in which stretching occurs.

A plastic container made from a fusion blend of a post consumer plastic and ethylene polymers and comprising post consumer resin of homopolymer high density polyethylene resin and a small amount of linear low density polyethylene resin. In another form, the container is made from a blend of post consumer homopolymer high density polyethylene resin, virgin high density polyethylene resin with a sma...

Gegenstand der vorliegenden Erfindung sind antistatische Polycarbonat-Extrusionsfolien aus thermoplastischen Polycarbonaten, Polyalkylenterephthalaten und Ruß, sowie Verfahren zur Herstellung dieser Folien.; The present invention relates to antistatic polycarbonate extruded films made from thermoplastic polycarbonate, polyalkylene terephthalates and carbon black, and to processes for the productio...

Rubber-containing graft copolymer particles having excellent powder properties are prepared by mixing, with 100 parts by weight (as solid content) of a slurry of a rubber-containing graft copolymer (A), 0.1 to 10 parts by weight (as solid content) of a rigid non-elastic polymer (B) having a glass transition temperature of 40 DEG C or higher and a weight-average molecular weight of 10,000 to 500,00...

A filament reactor for producing diamond using chemical vapor deposition (CVD) techniques. The reactor includes a closed reaction chamber with at least one gas inlet and at least one exhaust port, two substrates disposed in the reaction chamber, and a resistance heating device in the form of a plurality of filaments positioned between the substrates. A preheater unit is located adjacent to the gas...

Chlorinated polyethylene is protected against degradation by adding a water-insoluble antioxidant to the chlorinated polyethylene. The antioxidant has a melting point of less than 100 DEG C. The antioxidant is added after the chlorinated polyethylene has been produced by chlorination of polyethylene in an aqueous suspension and before the produced chlorinated polyethylene is dried.

A composite structure intended to withstand high intended pressures, for example a rocket motor case comprises two or more segments (2) abutting along mating edges parallel to the length of the case and joining means (7) of at least one end for joining with a closure. A composite overwrap (3) comprising reinforcing fibers in a resin matrix is wrapped around the segments, the fibers being hoop-wrap...

High strength, substantially linear, highly crystalline, high molecular weight-polyolefin shaped structure having a tenacity of greater than 15 g/den and an initial modulus of greater than 500 g/den by drawing never-processed polyolefin at a temperature of 60 DEG C. to 145 DEG C.; and processes for making never-processed polyolefin and such shaped structures.

Process in which the fibres are impregnated with a polyamide before a pultrusion, characterised in that the fibres impregnated with a polyamide oligomer or prepolymer are treated while heated to cause the elongation of the polymer chain before the calibration by pultrusion.

The method of operating a radiation therapy machine involves causing a source to emit a two dimensional fan beam in one plane. The location of the subject to be treated is movable along a line perpendicular to the plane. An adjustable device for shaping the beam and controlling its intensity is interposed between the subject and the source. A desired shape and intensity distribution for the portio...

PCT No. PCT/EP90/02256 Sec. 371 Date Jul. 21, 1992 Sec. 102(e) Date Jul. 21, 1992 PCT Filed Dec. 12, 1990 PCT Pub. No. WO91/09686 PCT Pub. Date Jul. 11, 1991.The present invention relates to a process in which 1. a water-dilutable basecoat composition is applied which contains at least one water-dilutable binder, metallic pigments, if desired color pigments, if desired conventional auxiliaries and...

A connector for slender piping members is disclosed. A spacer, seal rings and a bushing are inserted into the end of one piping member to be connected. The leading end portion of the one piping member is fitted in the outer circumference of the bushing. The end portion of the other piping member to be connected is pushed into the axial core of the bushing. An annular flange portion formed on the o...

The pipe connector comprises a connector body having a front cylindrical portion and a rear locking portion, and which defines an axial stepped bore defining small and large diameter chambers. The periphery of the large-diameter chamber has a number of elongate openings formed in it. A seal member is arranged in the small-diameter chamber. The socket body has a number of inwardly inclined resilien...

The auto-converting circuit comprises a pick-up facility for conversion an optical information into an electrical signal; a signal processing means for output a composite image signal after extraction brightness and color information from the electrical signal; the moving-amount detection means for detection of the pixcel differences between the current pixcel differences between the...

A mixing device for mixing first and second materials, including a container (2) for receiving the first material and having an inlet port (10) and an outlet port (12), a flexible tube (14) having one end connected to the inlet port (10), a cap (16) secured to the opposite end of the flexible tube (14) for attachment to a second container (4) receiving the second material, and a clamp carried by t...

The invention relates to a SAW filter comprising a first and second pair of substantially equivalent SAW transducers electrically coupled to form a bridge circuit. Each of the transducers of the first pair of transducers have a centre frequency which is slightly different to the centre frequency of each of the transducers of the second pair of transducers. The product of the static capacitance of ...