Abstract: A structure comprising a polymeric film substrate and a glassy coating of silicon dioxide heavily doped with at least one metal selected from the group consisting of antimony, aluminum, chromium, cobalt, copper, indium, iron, lead, manganese, tin, titanium, tungsten, zinc, and zirconium, provides improved barrier properties.

Abstract: The present invention relates to hold-downs for securing components to circuit assemblies and more particularly to fish hook hold-downs for securing connectors to printed circuit boards.

Abstract: A method for preparing perfluoropolyether oligomers comprising electrochemical coupling of perfluorocarboxylic acid salts or mixtures thereof in aqueous methanol under controlled conditions to produce perfluoropolyether oligomers.

Abstract: Polymers comprising fluorine-containing poly(ether sulfones) and monomers comprising aromatic fluorine-containing sulfones used in the preparation of these polymers.

Abstract: A pin-holding device for use in connecting a pin to a printed circuit board, comprising a substrate for holding a pin to be inserted into the printed circuit board and soldered thereto, the substrate having a pin insertion hole for detachably holding the pin such that at least one end portion of the pin is perpendicularly projected from the substrate, whereby the one end portion of the pin is inserted into the printed circuit board and soldered thereto in a state that the pin is held, thereafter the pin-holding device is detached from the pin.

Abstract: The present invention is directed to methods for using an improved reverse osmosis membrane that shows surprisingly improved solute rejection and permeation properties. The membrane includes a separating layer of a polyamideurea formed in situ by reaction of isocyanate-substituted acyl chloride and a diamine-treated microporous substrate.

Abstract: A cleaning composition is disclosed which is suitable for cleaning flux residue from a printed circuit board and comprises dibasic ester, a hydrocarbon solvent, a compatibilizing surfactant and water.

Abstract: This invention relates to sulfonylurea herbicides which control the growth of undesired vegetation and are safe to cotton or soybean plants that contain at least one gene that confers resistance to inhibitors of acetolactate synthase, agriculturally suitable compositions thereof and a method of their use.

Abstract: A process for extinguishing, preventing and controlling fires using a composition containing at least one fluoro-substituted propane selected from the group of CF.sub.3 --CHF--CF.sub.3, CF.sub.3 --CF.sub.2 --CHF.sub.2, CF.sub.3 --CFH--CF.sub.2 H, CF.sub.3 --CH.sub.2 --CF.sub.3, CF.sub.3 --CF.sub.2 --CH.sub.2 F, CHF.sub.2 --CF.sub.2 --CHF.sub.2, CF.sub.3 --CF.sub.2 --CHCl.sub.2, CHFCl--CF.sub.2 --CClF.sub.2, CHF.sub.2 --CCl.sub.2 --CF.sub.3, CF.sub.3 --CHCl--CClF.sub.2, CHF.sub.2 --CF.sub.2 --CHClF, CF.sub.3 --CR.sub.2 --CH.sub.2 Cl, CClF.sub.2 --CF.sub.2 --CH.sub.2 F, CF.sub.3 --CH.sub.2 --CClF.sub.2, CHClF--CR.sub.2 --CF.sub.3, CHF.sub.2 --CF.sub.2 --CF.sub.2 Cl, CF.sub.3 --CHCl--CF.sub.3, CF.sub.3 --CHF--CF.sub.2 Cl, and CHF.sub.2 --CFCl--CF.sub.3 is disclosed. The fluoropropanes can be used in open or enclosed areas with little or no effect on the ozone in the stratosphere and with little effect on the global warming process.

Abstract: The compound 1,1,2,2,3,3-hexafluorocyclopentane and mixtures thereof with alcohols, ethers, esters, ketones, nitromethane, and halogenated hydrocarbons are disclosed; as is a process for cleaning a solid surface which comprises treating the surface with said compound or said mixtures. Binary mixtures of 1,1,2,2,3,3-hexafluorocyclopentane either with about 27 to 35 weight percent methanol, or with about 21 to 29 weight percent ethanol are disclosed as azeotrope or azeotrope-like compositions and are particularly suited for use where solvent recovery and reuse is practiced.

Abstract: A capacitance liquid level sensor uses an inductance to isolate the probe of the sensor from the plastic tubing coupled to the probe thus reducing false signals generated by movement of the tubing.

Abstract: The present invention relates to electrical terminal pins for use in interconnecting electrical leads, plated through holes in printed circuit boards and/or connector contacts and, in particular, to electrical terminal pin tips on insertion ends of the pins.

Abstract: Apparatus for securing a hooked member to a post after engagement of the hooked member with the post. The hooked member has vertically aligned upper and lower hooks. A deformable locking tab is formed atop the lower hook, beneath a recessed web portion of the hooked member. The locking tab has top, rear and front edges. A locking arm projects forwardly from the front edge. A first notch is cut in the top edge; and, a second notch is cut in the recessed web portion, adjacent the first notch. A levering implement such as a screwdriver can be fitted between the notches and used to pry the locking tab away from the locked position if it is desired to remove the hooked member from the post.

Abstract: An improved ceramic dielectric composition comprising a chemically homogeneous distribution of a mixture of additives on the surface of particles of ceramic powder, and to a method for enhancing the dielectric properties and sinterability of such compositions at low firing temperatures.

Abstract: An improved ceramic dielectric composition comprising a plurality of mixed metal oxide dopants distributed homogeneously on the surface of ceramic powder particles, and a method for enhancing dielectric properties of such compositions by improving the chemical homogeneity of the particles.

Abstract: Each of the forward ribs of a rib cage terminal is provided with a tab at the free end thereof. The tabs are provided with a chamfered surface to define a lead-in at the forward end of the terminal.

Abstract: The present invention provides a process for the preparation of alkoxycarbonyloxystyrene comprising reacting acyloxystyrene with a strong base to yield a phenolate to which is added an alkoxycarbonylating agent in an organic solvent and a phase transfer catalyst to yield the desired product in the organic phase.

Abstract: An improved process comprising treating monofilaments with high temperatures to deorient the surface. A preferred product is a heavy denier transparent polyamide monofilament, especially suitable as fishing line.

Abstract: A process for making oriented thermoplastic monofilaments having a tenacity greater than about 7.5 g/d at a standard deviation in tenacity of less than 0.25.