Abstract: A skivable billet having improved uniform heat absorptive ability in which layers of enhanced optical density comprise water soluble polyazo direct dyes such as Formanil Black G and finely divided silica.

Abstract: Toothbrushes are provided having bristles oriented for cleaning of surface areas and sulcus interstices and particularly to toothbrushes adapted to cleaning of more than one tooth surface and sulcus simultaneously.

Abstract: Traverse rod for the support of a thread guide in a winding machine rotatably secured in a slide preferably fitted with bumpers. Filled plastics are employed to decrease weight of the assembly. Fibrous glass fiber and polytetrafluoroethylene filled nylon-6 is preferred for the rod and self lubricating, i.e. molybdenum disulfide filled, nylon-6,6 for the slide. Significant decreases in the sound generation from typical winding machines is achieved using the traverse rod and slide combination.

Abstract: Thin nonorganic films of complexes of titanium and stannous tin are formed on organic polymeric substrates to provide ultraviolet absorbing coatings which retard degradation of the polymeric material of the substrate due to ultraviolet light.

Abstract: A cable connecting apparatus for locking of wires of a multipair cable in a cable connector comprises a base with longitudinal axis, a connector receiving station and a cable receiving station having supply side and product side and having first and second comb means on respective sides, means in the base for elevating the cable receiving station and rotatable arm means containing an anvil means, the arm means rotating about the axis of the base into a position above the cable connecting station.

Abstract: Methine 4-nitro-arylidene dyes having certain substituents in the 2 position of the arylidene group are found to be pleochroic and to form guest-host combinations with dielectrically positive anisotropic nematic liquid crystals. These combinations are employed in electro-optical display devices.

Abstract: Comb means for continually directing a multiplicity of wires to the connecting station of a multiwire connecting apparatus for locking a multiplicity of wires in a multiwire connector.

Abstract: Thin nonorganic films of complexes of titanium and stannous tin are formed on organic polymeric substrates to provide ultraviolet absorbing coatings which retard degradation of the polymeric material of the substrate due to ultraviolet light.

Abstract: Geminal prostaglandins (P.G.'s) are synthesized which are represented by the general formula: ##STR1## where A is a 4 or 5 carbon atom ring-completing group (CH.sub.2).sub.1+m --X--(CH.sub.2).sub.z where m = 0, 1 or 2,Z = 0 or 1, 0<(m+z)<3, and X is --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --CHOH--, ##STR2## and, when m = 0 and z = 1, is also --CH=CH-- or ##STR3## Y is divalent straight chain alkylene of 4 to 8 carbon atoms or --CH.sub.2 CH=CH(CH.sub.2).sub.3 --;R is alkyl of 4 to 7 carbon atoms;Q is --CO.sub.2 H or --CH.sub.2 OH provided that it is not --CH.sub.2 OH when ##STR4## or Y-Q taken together may be heptyl or allyl.

Abstract: Geminal prostaglandins (P.G.'s) are synthesized which are represented by the general formula: ##STR1## where A is a 4 or 5 carbon atom ring-completing group (CH.sub.2).sub.1+m --X--(CH.sub.2).sub.z where m = 0, 1 or 2,Z = 0 or 1, 0<(m + z)<3, and X is --CH.sub.2 --CH.sub.2 --, --CH.sub.2 --CHOH--, ##STR2## and, when m = 0 and z = 1, is also --CH=CH-- or ##STR3## Y is divalent straight chain alkylene of 4 to 8 carbon atoms or--CH.sub.2 CH=CH(CH.sub.2).sub.3 --;r is alkyl of 4 to 7 carbon atoms;Q is --CO.sub.2 H or --CH.sub.2 OH provided that it is not --CH.sub.2 OH when X = ##STR4## or Y--Q taken together may be heptyl or allyl.

Abstract: Certain members of the class of odd-numbered methine arylidene dye bases are found to be of use in thermally-developable photosensitive compositions and thermally-developable photosensitive elements containing such agents. These compounds are acutance agents which are relatively stable against photo-bleaching but undergo thermochemical bleaching on heating in silver salt-containing thermally-developable photosensitive compositions.

Abstract: Vessels for the storage, handling, conduction or treatment of blood or blood components are fabricated from styrene-aliphatic vinyl copolymers and the blood contacting surfaces of the vessel are treated with fuming sulfuric acid to provide a durable layer which is slippery when wet with water and has a zeta potential in the range -75 to -5 millivolts. Surfaces with these characteristics show only slight tendency to clot blood in contact therewith.

Abstract: Tri(fluoroaliphatic amines) wherein there is at least one fluorine atom on one carbon alpha to the tertiary nitrogen are reacted with SO.sub.3 to produce tri(fluoroaliphatic) alpha fluosulfato amines which can be hydrolyzed under controlled conditions to produce oxo or hydroxyl derivatives by removal of the fluosulfato group (OSO.sub.2 F), which derivatives can also be further hydrolyzed to useful products.

Abstract: A process is provided for applying refractory wear-resistant interlocking tile to the inner surface of a circular to elliptical tubular casing and securing them in position by exertion of centripetal force from intumescence of an insulative sheet material between the tile and the casing exerting substantially uniform centrifugal and centripetal forces.

Abstract: Process for preparing linear terminally differentially electrophilically reactive prepolymers by reacting cyclic ethers or lactones comprising a major proportion of tetramethylene oxide with an initiator represented by the asymmetrical structureYO.sub.m SO.sub.2 R.sub.n Q,whereinQ is a first radical which in anionic form is a non-terminating anion in the polymerization of tetramethylene oxide;Y is a second radical, free from alkylatable groups, selected from alkyl, alkaryl, aryl, aralkyl and cycloalkyl and having the free valence on a carbon atom devoid of halogen atoms;n = 0 or 1;m = 0 or 1; andR is a divalent bridging radical comprising at least one oxyalkylene radical --(OR').sub.q where q is 1 to 300 and preferably 1 to 50, and R' is alkylene of 2 to 10 carbon atoms, at least half being C.sub.4 H.sub.8.

Abstract: 1,1-Bis(perfluoroalkylsulfonyl)propanes substituted in the three position by two to three electron-withdrawing groups, particularly perfluoroalkylsulfonyl, carboxyl, carboalkoxy or cyano are catalysts for the polymerization of aromatic epoxy resins.

Abstract: 1,1-Bis(perfluoroalkylsulfonyl)propanes substituted in the three position by two to three electron-withdrawing groups, particularly perfluoroalkylsulfonyl, carboxyl, carboalkoxy or cyano are catalysts for the polymerization of aromatic epoxy resins.

Abstract: At least two similar sheets of intumescent sheet material one of which is coated with adhesive on one face are adhered with an offset and with liner paper covering the exposed adhesive covered layer of the offset. Dimensions are made so that the laminate can be conformably wrapped around a ceramic monolith, the liner removed and the ends of the two laminate adhered. This provides ease of insertion of ceramic monoliths in coverings and after heating expansion of the intumescent material secures the monolith in the covering.

Abstract: A durably soil-resistant carpet is provided which comprises a plurality of organic fibers having thereon a normally solid coating comprising (a) at least one phase of a water-insoluble addition polymer derived from a polymerizable ethylenically unsaturated monomer free of non-vinylic fluorine, the polymer having at least one major transition temperature higher than about 45.degree. C. and a solubility parameter of at least about 8.5, and (b) at least one phase of a water-insoluble fluorinated component containing a fluoroaliphatic radical of at least 3 carbon atoms, the fluorinated component having at least one major transition temperature higher than about 45.degree. C.; and at least one of said phases being a continuous phase. Novel compositions and processes for the treatment of carpets to render them durably soil resistant are also provided.

Abstract: Hermetic power packages are devices in which power-consuming chip devices or integrated circuits which generate considerable amounts of heat can be mounted and which provide thermally integral heat sinks. .Iadd.Terminal and lead-bearing alumina rings or collars, unified by firing, provide hermetically sealed insulated buried leads. .Iaddend. .Iadd.