Abstract: An anti-bacterial composition capable of being activated in the gastro-intestinal tract of mammals is provided. Said composition comprises an effective amount of lactoferrin and lactoperoxidase, and an activating system present in sufficient amounts to activate said lactoperoxidase in the gastro-intestinal tract. In accordance with another aspect of the present invention, the anti-bacterial composition is introduced into the gastro-intestinal tract of mammals as a component of foodstuff and/or animal feedstuff. In accordance with yet another aspect of the present invention, a method for treating gastro-intestinal infections is disclosed. This method for treating gastro-intestinal infections in mammals comprises introducing the above anti-bacterial composition into the intestinal tract of mammals.

Abstract: The decomposition of polyhalogenated aromatic compounds, such as polychlorinated biphenyls (PCB), is carried out under an inert atmosphere using a reagent comprising a polyglycol partially neutralized with sodium, and a weakly basic compound.

Abstract: A process for the disproportionation of a toluene containing feedstock over an aluminum deficient mordenite catalyst having a silica/alumina mole ratio of at least 30. The feedstock and hydrogen co-feed are supplied to a reaction zone containing the mordenite catalyst and which is operated under a temperature and pressure condition to effect the disproportionation of toluene to benzene and xylene. The supply of toluene feedstock to the reaction zone is interrupted while continuing the supply of hydrogen to the reaction zone. By continuing the supply of hydrogen to the reaction zone during periods of interruption of the toluene feedstock, the aging quality of the aluminum-deficient mordenite catalyst is improved.

Abstract: Process for the isomerization of a xylene feedstock employing a silicalite catalyst. A xylene feedstock containing a mixture of xylene isomers and ethylbenzene is passed to a reaction zone containing the silicalite catalyst. Para-xylene is present in the feedstock in less than an equilibrium amount, and ethylbenzene is present in a concentration greater than the para-xylene concentration. Hydrogen and/or water are also supplied to the reaction zone. The reaction zone is operated under conditions to effect isomerization of xylene isomers to provide an increased para-xylene content, and disproportionation of ethylbenzene to provide a decreased ethylbenzene content.

Abstract: Process for the isomerization of xylene feedstock employing an aluminum-deficient mordenite catalyst. The xylene feedstock is passed into a reaction zone and in contact with a mordenite catalyst having a silica/alumina mole ratio of at least 30. The xylene feedstock may comprise a substantially pure meta-xylene, a mixture of xylene isomers, or in the preferred embodiment, a mixture of xylene isomers and ethylbenzene in which para-xylene is present in less than an equilibrium amount, and ethylbenzene present in an amount greater than the para-xylene content. The reaction zone is operated at a temperature within the range of 350.degree.-600.degree. C. and a hydrogen pressure within the range of 200-1000 psig to effect isomerization of xylene isomers to provide an increased para-xylene content and disproportionation of ethylbenzene to provide a reduced ethylbenzene content in the product.

Abstract: A process for removing sorbed lubricating oil additives from siliceous filter material is provided. The process comprises forming a slurry of the additive-laden siliceous filter material and an aromatic solvent. Water is added to the slurry prior to separating the siliceous filter material from the slurry. The recovered filter material is substantially additive-free. The lubricating oil additives may be optionally recovered from the aromatic solvent by appropriate means such as distillation.

Abstract: Soils are consolidated with formation of a top layer having compressive strength by treating soil particles with cement, alkali silicate and a dialdehyde, at ambient temperature.

Abstract: Disclosed is a process and apparatus for the continuous mass polymerization of styrenic and alkenylnitrile monomers. The process comprises the steps of continuously introducing a feed comprising a predetermined ratio of styrenic and alkenylnitrile monomers into a reaction vessel to produce a reaction mixture; subjecting the reaction mixture to conditions of temperature and pressure under which said monomers copolymerize to produce a styrenic/alkenylnitrile copolymer; subjecting the reaction mixture to agitation; continuously withdrawing styrenic/alkenylnitrile copolymer from the reaction vessel; and by withdrawing vapour phase from the reaction vessel in a controlled amount by varying the amount of cooled surface available for condensing the vapors, condensing the vapors by contact with the cooled surface and returning the condensate to the reaction vessel. The process and apparatus also include a novel means for devolatilizing the product copolymer.

Abstract: A process for the purification of proteins from a fluid medium wherein said proteins have an isoelectric pH higher than the pH of said fluid medium, said process comprising passing the liquid medium over acidic polysaccharide gel particles of at least 0.5 mm in the shortest dimension, and recovering the desired proteins from the gel particles by elution with an aqueous salt solution having ions concentration of at least 5 grams per liter.

Abstract: Process for the disproportionation of toluene employing an aluminum deficient mordenite catalyst. A toluene containing feedstock is supplied to a reaction zone containing a mordenite catalyst having a silica/alumina mole ratio of at least 30. The toluene WHSV is more than one. A hydrogen cofeed is supplied at a hydrogen/toluene mole ratio of 3-6, and the reaction zone is operated at a temperature within the range of 370.degree.-500.degree. C. and a hydrogen pressure of at least 500 psig. The toluene feedstock can have a moisture content in excess of 25 ppm and typically will have a water content ranging from about 50 ppm up to about the saturation point, about 250 ppm. A start-up procedure employs passing a hot preflush gas over the catalyst to dehydrate water from the catalyst prior to passing the toluene feedstock to the catalyst.

Abstract: Vectors are disclosed for cloning any foreign DNA in prokaryotic and eukaryotic organisms, which vectors comprise a restriction site bank containing a large number of unique restriction sites. The disclosed vectors permit the cloning of large DNA fragments and complete genes without the risk of unwanted DNA cleavage by restriction enzymes. Also disclosed are methods for preparing the aforementioned vectors and processes using the vectors for the cloning of DNA, for the production of polypeptides, and the like.

Abstract: Disclosed are rigid materials such as sheets, boards or tubes made of expanded polypropylene, which have a uniform specific gravity d of from about 4.1.times.10.sup.-6 to about 8.1.times.10.sup.-6 Newton/mm.sup.3, a crystallization temperature of from about 115.degree. C. to about 135.degree. C. and a flexural modulus Mf expressed in Newton/mm.sup.3 such that the ratio Mf:d is from about 1.5.times.10.sup.8 to about 1.7.times.10.sup.8 mm.

Abstract: A removable curtain assembly for covering the inside of a vehicle windshield, said curtain assembly comprising: an opaque vertically pleated panel having outer dimensions sufficient to cover the interior of said windshield while retaining sufficient strength in the pleats to hold said panel in unfolded position adjacent to said windshield; at one end of said panel, a rigid rod having a sufficient amount of suction cups attached thereto, to attach and hold the curtain assembly to the inside of said windshield; and at the other side of said panel, a tension rod of sufficient length such that when the tension rod is vertically placed adjacent to the windshield and between the windshield housing material, the tension rod has sufficient tension to hold the curtain assembly in place.

Abstract: Disclosed are films made of expanded polypropylene, which have a uniform specific gravity d of from about 4.25.times.10.sup.-6 to about 6.50.times.10.sup.-6 Newton/mm.sup.3, a crystallization temperature of from about 115.degree. C. to about 135.degree. C. and an elastic modulus Me expressed in Newton/mm.sup.3 such that the ratio Me:d is from about 1.6.times.10.sup.8 to about 2.0.times.10.sup.8 mm.

Abstract: A process for the distillation of readily polymerizable vinyl aromatic compounds which comprises subjecting said compounds to distillation conditions in the presence of oxygen and an effective amount of asphaltene as a polymerization inhibitor.

Abstract: A process for the distillation of readily polymerizable vinyl aromatic compounds which comprises subjecting said compounds to distillation conditions in the presence of an effective amount of a pretreated polymerization inhibitor selected from the group consisting of asphalts, asphaltenes and any combination thereof. The inhibitor is pretreated by subjecting the inhibitor to a process for substantially increasing the free radical content therein.

Abstract: A method for reducing oil slick on seawater comprising applying to the oil slick a dispersing compositions containing at least one surface-active agent, at least one solvent, and a nitrogen-containing compound which is a nutrient for the micro-organisms which are active in oil metabolism. The nitrogen-containing compound is a monoalkylguanidinium salt ##STR1## wherein R is an aliphatic hydrocarbon radical, saturated or unsaturated, containing from about 8 to about 20 carbon atoms, and X is a halogen or an acid anion.

Abstract: The present invention relates to a process for removing carbonyl sulfide from a liquid olefinic hydrocarbon feedstock comprising (a) passing said hydrocarbon feedstock over an absorbent material comprising zinc oxide and a promoter selected from the group consisting of alumina, silico-aluminas and any combination thereof; and (b) recovering a liquid olefinic hydrocarbon stream having a substantially reduced carbonyl sulfide content.

Abstract: A process for the selective alkylation of monoalkylbenzene into dialkylbenzenes wherein the para isomer of the disubstituted product is present in a concentration greater than in a thermodynamic equilibrium is provided.The method comprises passing the monoalkylbenzene and an alkylating agent capable of methylation, ethylation or propylation through a reaction zone containing an unmodified crystalline silica catalyst of the silicalite type having the monoclinic symmetry.

Abstract: A process for the isomerization of n-butenes, comprising contacting, at elevated temperatures, a feed containing n-butenes with a catalyst comprising a crystalline silica polymorph of the silicalite type in the presence of stream to recover a steam containing isobutene. The reaction can be carried out in either liquid or vapor phase.