Abstract: This invention discloses methods and compounds for covalently linking nitro-, dinitro- and trinitrophenyl to DNA and the resulting nitro-, dinitro-, and trinitrophenyl labeled DNA reagents. Reagents for the in situ detection of a chromosome or a region of a chromosome are disclosed. These reagents include a multiplicity of DNA sequences that are complementary to different portions of the chromosome or chromosome region to be detected. Multiple nitro-, dinitro- or trinitrophenyl labels are covalently linked to the DNA sequences by means of an amino acid linking group. These labeled reagents are contacted under hybridizing conditions with the chromosome or chromosome region of interest. Any binding of the reagent with the chromosome or chromosome region of interest may then be detected by immunological techniques.

Abstract: The invention comprises a method for producing the multi-layer sheets of the invention comprising extrusion coating multi-resin layers onto each side of the foam core layer and then lamination of a barrier film layer onto one of the multi-resin layers.

Abstract: Flame retardant polyarylether compositions comprising a poly(biphenyl ether sulfone) and anhydrous zinc borate are disclosed. The preferred compositions of the invention are blends of a poly(biphenyl ether sulfone) with a poly(aryl ether ketone) containing anhydrous zinc borate and a fluorocarbon polymer, and optionally titanium dioxide. The preferred compositions exhibit improved heat release characteristics.

Abstract: The invention comprises a method for the production of insulating styrenic foams comprising use of a blowing agent comprising a C.sub.4 -C.sub.5 alkane, CO.sub.2 and a halogenated ethane selected from the group consisting of 1,1,1-trifuluoroethane, 1-chloro-1, 1-difluoroethane and 1,1,1,2-tetrafluoroethane and mixtures thereof, wherein the halogenated ethane amount is less than 70.0 wt. % of the total blowing agent weight. The invention further comprises the styrenic foams made using the blowing agent composition and a paraffin wax. The method of the invention advantageously eliminates ethylchloride from styrenic foam production methods while limiting use of the halogenated ethane to minimum amounts suitable to produce foams with good insulative properties.

Abstract: The invention comprises a multi-layer thermoplastic foam sheet comprising a thermoplastic foam layer adjacent to at least one multi-resin layer, preferably comprising a reclaim material mixture recycled from the sheet manufacturing process, and which comprises a thermoplastic barrier resin. In a preferred embodiment, the multi-layer sheet of the invention comprises a four major layer sheet comprising a barrier film layer which comprises a thermoplastic oxygen barrier resin; an inner mutli-resin reclaim layer comprising the oxygen barrier resin used in the barrier film layer; a foam core layer adjacent to the inner multi-resin reclaim layer; and an outer multi-resin reclaim layer, also comprising the oxygen barrier resin, as the other outer layer of the multi-layer sheet.

Abstract: A woven silt control fabric comprising substantially flat yarns woven with substantially round monofilament yarns, wherein the flat yarns are compacted, is capable of high water, flow capacity while achieving high soil retention. Preferably, the flat and monofilament yarns are made from substantially polypropylene and the flat yarns are compacted to about one hundred to about one hundred twenty percent coverage.

Abstract: This invention is directed to a molded electrical device comprising an electrically conductive pathway and an insulating material, and capable of interconnecting with external circuitry said insulating material comprising a blend of a particular amorphous polymer and a particular crystalline thermoplastic polymer. Also, this invention is directed to a composition suitable for use as an insulating material in an electrical device comprising from about 35 to about 65 weight percent of an amorphous polymer selected from a polyarylethersulfone resin, a polyarylether resin, a polyetherimide or a polyarylate, and from about 65 to about 35 weight percent of a crystalline polymer selected from a poly(arylene sulfide), a polyester or a polyamide.

Abstract: In a press, a platen has opposed fluid, preferably hydraulically, actuated clamp blocks thereon. Each block functions to register with an open-ended slot in a tool mount plate and upon translation of the block to enter an offset slot section in a clamped or locked relationship. The offset slot sections are opposed one another, wedge-shaped, and complementary to block configuration. The tool mount plate can be quickly and conveniently attached and aligned or removed from the platen as needed.

Abstract: The invention comprises a blowing agent composition useful in the production of insulating styrenic foams comprising ethylchoride, propane and a halogenated ethane selected from the group consisting of 1,1,1-trifluoro-2-fluoroethane, 1-chloro-1,1-difluoro-2,2,2-trifluoroethane 1-chloro-1,1-difluoroethane (FC-142b) and mixtures thereof. The invention further comprises a method to produce dimensionally stable insulating styrenic foams using the blowing agent composition. The blowing agent composition has a significantly reduced ozone reactivity potential compared to previous commercial styrenic foam blowing agents.

Abstract: A method of producing a foamed product having a density less than 0.2 g/cm.sup.3, which comprises foaming a composition comprising a major proportion of a low viscosity polypropylene component having a melt viscosity (at 190.degree. C. and a shear rate of 1000 sec.sup.-1) of less than 2.times.10.sup.3 poise and a minor proportion of a high viscosity polypropylene component having a melt viscosity (at 190.degree. C. and a shear rate of 1000 sec.sup.-1) of greater than 2.5.times.10.sup.3 poise.

Abstract: A method is disclosed for recovering bitumen from a carbonaceous solid feed and for recovering a carbonaceous liquid from a fines-containing carbonaceous liquid feed by extraction of the feed with a solvent of predetermined solvency power, wherein the recovered product has a low fines content.

Abstract: A method for recovery of extraction solvent from a dissolved solute wherein halogen gas evolution and halogen compound retention in the solute are minimized comprises heating a solution of a halogenated organic solvent and the extracted solute in the presence of an ammonium, Group I metal or Group II metal salt of an acid of carbon number 1 to 6, such as ammonium bicarbonate, ammonium carbonate, ammonium formate, sodium carbonate, sodium formate, or calcium formate, to recover the solvent and the solute.

Abstract: A method for filtering spent tar sands from a bitumen and organic solvent solution comprises separating the solution into two streams wherein the bulk of the coarser spent tar sand is in a first stream and has an average particle size of about 10 to about 100 mesh and the bulk of the finer spent tar sand is in a second stream; producing a filter cake by filtering the coarser spent tar sand from the first stream; and filtering the finer spent tar sand from the second stream with the filter cake. The method is particularly useful for filtering solutions of bitumen extracted from bitumen containing diatomite, spent diatomite and organic solvent.

Abstract: This invention relates to sheet materials, on which a coating is applied and which are used for pressure sensitive carbonless copying systems, wherein at least one of the components responsible for color development in the coating is a predominantly white four layer structured lamelar ground chlorite mineral having an iron content of about 0.5% to 8% by weight preferably of about 3% by weight.The components responsible for color development in the coating are preferably composed by 40 to 60% by weight of said ground chlorite mineral and 60 to 40% by weight of activated montmorillonite or bentonite or smectite clay.

Abstract: This relates to drilling in water from a platform or vessel using a riser pipe. An inverted funnel skirt or cone is placed over slots cut in the wall of a riser pipe a short distance above its lower end. The apex end of the cone is welded to the riser pipe above the slots and drill cuttings pass through the slots and fall to the seafloor. Another embodiment includes an "L" shaped diverter flowline welded to the periphery of each hole in the riser pipe with one leg of the "L" extending a short distance below the hole.