Abstract: The subject invention relates to a coated reinforcement material comprising a SiC reinforcement having a coating of at least three layers, wherein the layers are alternately A-material layers of the general formula:Al.sub.x O.sub.y N.sub.zwherein x is up to about 60 atomic % of the coating;y is from about 20 atomic % to about 55 atomic % of the coating; andz is from about 5 atomic % to about 45 atomic % of the coating, with the proviso that x+y+z=100, and B-material layers comprising a metal alloy, such that the first and last layers of the coating are A-material layers. The invention further relates to a high strength, high temperature performance composite containing the above-specified coated reinforcement.

Abstract: A method and apparatus for manufacturing perforate, fiber reinforced composite material wherein the fiber reinforcing material is impregnated with the resin which is cured to give a strong light material.

Abstract: A facilitated liquid membrane for the separation of olefins from a gaseous feed stream comprises a porous support structure (10, 15) and a liquid membrane which comprises an aqueous solution containing a metal salt facilitator capable of coordinating with olefin gases, and an alkyl carbonate co-solvent. A process for the separation of olefins from gaseous feed streams comprises the steps of passing a gaseous feed stream over one side of a facilitated liquid membrane according to the present invention and collecting the olefins on the other side of the membrane.

Abstract: The subject invention relates to a membrane for the selective separation of at least one component of a gaseous feed stream comprising a porous membrane, having pores of from about 10 Angstroms to about 200 Angstroms, the pores containing a facilitator liquid having an affinity for the at least one component to be selectively separated, the membrane being capable of operating at a transmembrane pressure of about 100 psig to about 1000 psig, and the membrane comprising a polymer, a solvent, an alcohol non-solvent, and a viscosity enhancer and pore former.

Abstract: A method for manufacturing perforate, fibre-reinforced, composite material, comprising the steps of laying up reinforcing fibres and resin in a mould having needles, the mould including a stripper plate having perforations into which the needles pass when the mould is assembled; curing the resin; and withdrawing the composite from the mould along with the stripper plate.

Abstract: An apparatus and method for effecting mass or heat transfer between the bulk of a fluid and a transfer surface boundary layer comprises a conduit having transverse baffles spaced apart from the transfer surface such that vortex mixing is induced in fluid passed along the conduit in pulsed flow. The transfer surface may be a membrane suitable for microfiltration, ultrafiltration or pervaporation.

Abstract: A crystalline material having, in the dehydrated form the empirical formula:m(M.sub.2/a O): X.sub.z O.sub.xz/2 : yYO.sub.2 (I)in which m is 0.5 to 1.5; M is a cation of valency a; X is a metal of valency x, selected from aluminium, boron, gallium zinc, iron and titanium; z is 2 when x is an odd number, an z is 1 when x is an even number; y is at least 5; and Y is silicon or germanium; and having, in the calcined hydrogen form, an X-ray diffraction pattern including significant peaks substantially as shown in table I herein. The material has been designated SUZ-4.

Abstract: The subject invention relates to a coated reinforcement material comprising a reinforcement having a coating or the general formula:A.sub.x Si.sub.100-xwherein A is selected from the group consisting of Au, Pt, Ru, Rh,Ni, Pd, Ir and combinations thereof; andx is within the range of greater than zero to about 40.The invention further relates to a high strength, high temperature performance composite comprising a matrix material and a reinforcement material having a coating comprising silicon in combination with at least one of gold, platinum, ruthenium, rhodium, nickel, iridium and palladium.

Abstract: Multilayered high barrier film products providing gas and moisture barrier properties. The film products comprise at least a first polymer film having low permeability to moisture and a polymer blend film containing a gas barrier polymer and a second polymer functionalized for compatibility with the gas barrier polymer and so as to allow the polymer blend film to adhere to the first polymer film. A method for the preparation of multilayered high barrier film products includes the steps of forming a gas barrier polymer film from a polymer blend containing a gas barrier polymer and a second polymer and, bonding a moisture barrier polymer film to at least one side of the gas barrier film.

Abstract: A process for the preparation of a catalytically active material, which comprises calcining an anionic double hydroxide clay; rehydrating the resulting material by treatment with water substantially free from dissolved ions; and calcining the rehydrated material.

Abstract: A process for the preparation of a glycol ether by reacting an olefin oxide with an excess of an alcohol over a catalyst; characterized in that the catalyst comprises a material which has been prepared by calcination of an anionic double hydroxide clay having a structure comprising magnesium and aluminum in combination, followed by rehydration and subsequent recalcination.

Abstract: A wafer (100) providing transverse sheets of semipermeable membrane (21). Such wafers include peripheral support means (101) defining a generally cylindrical ring and having inside (104) and outside surfaces (105), a plurality of transverse sheet membrane sleeves (16) carried within the peripheral support means, and a plurality of baffle plates (110, 125) carried between adjacent membrane sleeves. Apparatus (60) for the separation of a fluid into permeate and retentate portions comprises at least one transverse sheet membrane wafer (100), vessel means (61) providing a first port (68) for receiving the fluid, a second port (69) for withdrawing the retentate and a third port (70) for withdrawing the permeate, means for compressing (74) the wafer within the apparatus, and permeate chamber means (72) within said vessel, separate from the feedstream and the retentate by the means for compressing (74) and peripheral support means (101).

Abstract: A system to mitigate the effect of an environmental release of a contaminant gas. The system includes at least one first fluid effect device (13) positioned in the vicinity of the environmental release (33). A first fluid stream (20), a second fluid stream (23) and a flame (24) may each selectively be discharged from the first fluid device (13) in proximity to the contaminant gas. At least one second fluid effect device (25) also may be positioned in the vicinity of the environmental release (33) and the first fluid effect device (13). A third fluid stream (30) may be discharged from the second fluid device (25) proximate to the contaminant gas. A method to mitigate the effect of an environmental release of a contaminant gas employing the foregoing system is likewise embodied herein.

Abstract: A novel catalyst composition comprising a crystalline aluminosilicate having a molar ratio of silica to alumina of at least 5:1, the aluminosilicate carrying gallium and silver, is useful in the conversion at elevated temperature of a C.sub.2 -C.sub.12 hydrocarbon feedstock into aromatic hydrocarbons.

Abstract: Multilayered barrier film products providing gas and moisture barrier properties. The film products comprise at least a first polymer film having low permeability to moisture and a heterogeneous polymer blend film containing a gas barrier polymer and a second polymer distributed in the gas barrier polymer, so as to allow the heterogeneous polymer blend film to adhere to the first polymer film. A method for the preparation of multilayered barrier film products includes the steps of forming a gas barrier polymer film from a heterogeneous polymer blend containing a gas barrier polymer and a second polymer and, bonding a moisture barrier polymer film to at least one side of the gas barrier polymer film. The method can be practiced utilizing conventional coextrusion equipment.

Abstract: An integrally woven multi-apertured multi-ply angle interlock fabric is woven so as to have a plurality of apertures which extend across the width of the fabric and are completely contained within the thickness of the fabric. The fabric is comprised of a first yarn system in which yarns extending across the width of the fabric in parallel, spaced-apart fashion form a laminate of spaced-apart, generally parallel yarn layers between the opposite top and bottom surfaces. The fabric is also comprised of a second yarn system having weaver yarns arranged into yarn layers which repeatedly extend through portions of the thickness of the fabric between the top and bottom surfaces and which interweave with a plurality of the yarn layers of the frist yarn system on one side of and one or more yarn layers of the first yarn system on the other side of the plurality of apertures being formed within the thickness of the fabric.

Abstract: The subject invention relates to a process for the selective separation of at least one component of a gaseous feedstream comprising passing the feedstream containing the component through a separation unit, the separation unit containing a porous membrane having a feed side and a permeate side, and a pore size of from about 10 Angstroms to about 200 Angstroms, and having disposed in the pores of the porous membrane a facilitator liquid comprising a carrier dissolved in a suitable solvent, including:a) dissolving the component in the facilitator liquid on the feed side of the porous membrane at the feed gas/membrane interface;b) forming a component-carrier complex;c) diffusing the complex to the permeate side of the porous membrane; andd) releasing the component from the carrier.

Abstract: A polymer blend comprises a high nitrile copolymer and a compatible thermoplastic polymer or copolymer containing polar groups, formed from monomers selected from the group consisting of alkylacrylamides, aliphatic and cyclic methacrylates, unsaturated carboxylic acid anhydrides, vinyl pyrrolidones, heterocyclic ring compounds containing two hetero atoms, lactones and phosphorus-containing monomers that form highly crystalline polymers. Such blends can be used to form films and membranes having improved thermal, mechanical and optical properties.

Abstract: A crystalline material having, in the dehydrated form, the empirical formula:m(M.sub.2/a O):X.sub.z O.sub.xz/2 :.sub.y YO.sub.2 (I)in which m is 0.5 to 1.5; M is a cation of valency a; X is a metal of valency x, selected from aluminium, boron, gallium, zinc, iron and titanium; z is 2 when x is an odd number, and z is 1 when x is an even number; y is at least 5; and Y is silicon or germanium; and having, in the calcined hydrogen form, an X-ray diffraction pattern including significant peaks substantially as shown in Table I herein. The material has been designated SUZ-2, and is used in the conversion of hydrocarbons or oxygenates.

Abstract: A process for selectively removing biological materials from fluids includes the step of passing the fluids over an affinity membrane which comprises a precursor filtration membrane and a plurality of reaction sites provided on the surface of the membrane selective to binding a specific biological material.