Abstract: The instant invention is a process for the recovery of a polysaccharide, in particular a water-soluble glucan comprising adding a divalent cation to a solution containing the solubilized polysaccharide and then adding a water miscible organic solvent to precipitate the polysaccharide from the solution. The polysaccharide is then separated and collected.

Abstract: A process to produce products, in particular polysaccharides, from filamentous fungi, in an immobilized cell bioreactor wherein the fungus is fixed and adheres to the surface of a porous, non-particulate support and aqueous liquid medium is passed through the immobilized system and product containing medium is recycled or withdrawn from the system.

Abstract: A process for the recovery of nonionic glucans by adding a divalent cation to a solution containing solubilized glucan and then adjusting the solution to an alkaline pH resulting in the precipitation of glucan.

Abstract: Squeezed states of light having significant degrees of squeezing are achieved with modest values of atomic density and intracavity electromagnetic (EM) field by a device and method for coupling the EM field within the optical cavity. An oscillatory exchange of excitation then occurs between the atomic polarization and the EM field within the cavity.

Abstract: Quantum nondemolition measurements are made by back-action evasion obtained by a combination of a parametric oscillation and a conversion of polarizations. A polarization converter (14, 16, 17), such as a Faraday rotator, converts at substantially a single frequency between at least a portion of a signal polarization state and a detector polarization state. A parametric amplifier (11) having a gain G is coupled to the polarization converter (14, 16, 17).

Abstract: A method to modify the surface or fluoropolymer by a reactive gas plasma so that the surfaces have improved fluoropolymer to other substrate adhesive bond strength.

Abstract: A process for recovering Platinum Group metals from material comprising one or more Platinum Group metals and one or more Group IA metals supported on carbon comprises heating at a temperature between 700.degree. C. and 1150.degree. C. in a stream of an inert gas or vacuum then in a stream of carbon dioxide.

Abstract: A method for preparing a catalyst suitable for oxidation of carbon monoxide comprises the steps of treating a high surface area carbon support with an aqueous solution of a stannic salt and a promoter, drying, reacting with hydrazine hydrate in a hydrocarbon, washing and drying. The catalyst may be used in breathing apparatus.

Abstract: A high temperature, preferably polycrystalline, ceramic fiber having a selectable diameter of between 1 and 200 microns. The fiber is stable in an inert atmosphere at a temperature above about 1700.degree. C. and is often stable even in air at a temperature above 1500.degree. C. The fiber comprises a sintered ceramic powder having a maximum particle size less than the diameter of the fiber and an average particle size less than 0.2 times the diameter of the fiber. The ceramic powder is also stable in an inert atmosphere at a temperature above about 1700.degree. C. At least 90% of the ceramic is selected from borides, nitrides, carbides, and silicides. The fiber is characterized by a smooth surface and is preferably out of round.The invention further comprises a textilable sinterable filament, comprising a flexible polymer matrix containing high temperature sinterable ceramic powder particles. The ceramic powder particles are selected from ceramic borides, nitrides, carbides, and silicides.

Abstract: A C-branched zwitterionic surfactant represented by the following formula is disclosed: ##STR1## wherein x and y are numbers, x is less than or equal to y+1, and the sum of x+y in the range of about 7 to about 19, with the provisos that: (1) when the sum of x+y is in the range of about 7 to about 13, x/y is in the range of about 0.3 to about 1.2; and (2) when the sum of x+y is in the range of about 14 to about 19, x/y is in the range of about 0.1 to about 0.7. An enhanced oil recovery method using the foregoing surfactants is also disclosed.

Abstract: Tetraalkylammonium salts of 1:4 organoarsonate molybdenum polyoxoanions and resinoid products thereof. The salts have the formula[R.sub.4 N].sub.2 {[R.sup.1 As(OH)O.sub.2 ]Mo.sub.4 O.sub.13 H}where R is an alkyl group having from one to about 18 carbon atoms and R.sup.1 is an aryl group having the formula ##STR1## where G is selected from the group consisting of --NH.sub.2, --NH(CH.sub.3), --N(CH.sub.3).sub.2, --OH, --OCH.sub.3 and --H and at least one G is --NH.sub.2 to form 3-, 4-, 3,4-, 3,5- or 3,4,5-substituted aryl-arsonic acids. The resinoids comprise from about 7 to 17 parts by weight of the salt and from about 1 to 3 parts by weight of a dicarboxylic acid halide having the formula ##STR2## where R.sup.2 is selected from the group consisting of all organic radicals and X is Cl or Br. Processes for the preparation of the salts and resinoids are provided as is a method for the treatment of steel surfaces with the resinoids.

Abstract: A process is disclosed for separating an organic material from a composition comprising said organic material intermixed with particulate solids, the process comprising advancing a light hydrocarbon fluid through said particulate solids at an effective rate to drive said organic material from said particulate solids.

Abstract: A C-branched zwitterionic surfactant represented by the following formula is disclosed: ##STR1## wherein x and y are numbers, x is less than or equal to y+1, and the sum of x+y is in the range of about 7 to about 19, with the provisos that: (1) when the sum of x+y is in the range of about 7 to about 13, x/y is in the range of about 0.3 to about 1.2; and (2) when the sum of x+y is in the range of about 14 to about 19, x/y is in the range of about 0.1 to about 0.7. An enhanced oil recovery method using the foregoing surfactants is also disclosed.

Abstract: Substrates such as metal and plastic can be protected from the environment by employing a high nitrile polymer coating.

Abstract: An electrically conductive composite comprising conductive polyacetylene moiety, a nonconductive high nitrile resin, and a dopant. The high nitrile resin further comprises at least nitrile monomers or comonomers and optionally copolymerized with comonomers of mono-ethylenically unsaturated monomers and conjugated diolefins and further optionally containing an elastomeric component.The invention further includes a process for producing an electrically conductive composite comprising:(1) impregnating a high nitrile resin with a Zeigler type catalyst comprising an alkyl aluminum compound and alkyl, alkyl halide, halide, oxyhalide or alkoxide of Group IVA and VA metals,(2) exposing the impregnated high nitrile resin with an alkyne under polymerization conditions whereby polymerization occurs to form a polyacetylene/nitrile composite, and(3) adding dopant to the composite.

Abstract: The present invention provides a facile method of oil removal from an oil-water emulsion containing suspended solid particulates. In general, the method utilizes a volatile solvent which is liquefied under pressure and forms a two-phase system when in contact with the emulsion.

Abstract: A hybrid tetraploid corn seed and a process for its production are disclosed. Upon growth, the hybrid tetraploid corn seed yields a hybrid tetraploid corn plant, which exhibits superior biomass yield when compared to hybrid diploid corn plants. The hybrid seed is produced by crossing a first inbred line of tetraploid corn with a non-identical second inbred line of tetraploid corn to form at least one hybrid tetraploid seed.

Abstract: A process for converting .alpha.-hydroxycarboxylic acids to hydroxy free aliphatic carboxylic acids and aldehydes in the presence of a catalyst of the formula:M.sub.a M'.sub.b O.sub.xwhereinM is at least one of an element selected from Group IB, VIB, IVA; andM' is at least one of an element selected from Groups IA, IIA, IVA, VA, VIA, VIIIB, VB.

Abstract: A multiple stage autodeposition of organic polymer coating compositions deposited onto metal substrates wherein the coating composition's thickness does not increase by more than about 20.DELTA. compared to a single dry coating. The coated metal substrates formed by the process of the instant invention are corrosion resistant.

Abstract: A process for the selective hydrocarboxylation of propylene to produce predominantly isobutyric acid in the liquid phase is provided. The reaction of propylene, carbon monoxide and water is effected at a temperature of about 75.degree. C. to about 150.degree. C. and at a pressure of about 250 psi to about 5000 psi in the presence of a suitable solvent and a catalyst comprising palladium or a palladium compound supported on an inert carrier, an organo-arsine ligand compound and a hydrogen halide.