Abstract: Aqueous coating compositions that inhibit the attachment and growth of barnacles and other fouling organisms on submerged surfaces are comprised at least in part of an emulsified film-forming, water-insoluble polymer, an effective amount of a triphenyltin derivative and water. Pigments, fillers, dispersing acids for the pigment and surface tension modifiers may also be present in addition to other conventional aqueous latex paint additives.

Abstract: A composition and process for selectively removing nickel-iron alloys from a metal substrate which comprises contacting said metal surface with an aqueous bath containing:A. at least one nitro substituted organic compound containing at least one solubilizing group;B. at least one organic amine or polyamine or substituted amine or polyamine; andC. at least one aliphatic carboxylic acid or salt thereof, or a compound which will yield said carboxylic acid or salt thereof in solution, further characterized in that said aliphatic carboxylic acid or salt thereof additionally contains at least one substituent group selected from -NH.sub.2 or quaternary amine salts thereof, -OH, or -SH.By nickel-iron alloy deposit is meant a deposit containing from about 5 to 90 percent by weight iron with that portion which is not iron being primarily nickel or nickel and cobalt. Although small amounts of impurities such as copper, zinc, cadmium, lead, etc.

Abstract: An improved method is provided to reproducibly obtain stannic oxide of a type suitable for polishing plastic lenses. The optical density, bulk density and color of the oxide are within specified limits.

Abstract: This invention relates to a process and composition for the preparation of an electrodeposit which contains; at least one metal selected from the group consisting of nickel and cobalt or; binary or ternary alloys of the metals selected from nickel, iron, and cobalt; which comprises passing current from an anode to a cathode through an aqueous acidic electroplating solution containing at least one member selected from nickel compounds and cobalt compounds and which may additionally contain iron compounds providing nickel, cobalt and iron ions for electrodepositing nickel, cobalt, nickel-cobalt alloys, nickel-iron alloys, cobalt-iron alloys or nickel-iron-cobalt alloys; the improvement comprising the presence of 5.times.10.sup.-6 moles per liter to 0.5 moles per liter of a .beta.-substituted, .gamma.-substituted, or .beta.,.gamma.

Abstract: Triorganophosphines are prepared in high yield and purity by the simultaneous addition of an organomagnesium halide and a phosphorus trihalide to a reaction mixture in a 3:1 molar ratio, respectively. The reaction mixture also contains a linear ether or a heterocyclic ether wherein the ring contains 5 or 6 atoms.

Abstract: A silencer device for an industrial burner is adapted to be positioned over the air intake orifice of the burner tube of the industrial burner and provides two separate air intake paths. One of the air paths is through a central outer port and then between a cylindrical noise suppressing core member, having a perforated conical face on one end backed by a noise absorbent material, and the inner perforated wall of a toroid-shaped member. The other air path is through circumferential openings at the rear end of the silencer device.

Abstract: A full panel, easy-open container end closure includes a double-folded band formed in the removable panel adjacent the peripheral score, and an opening tab having a nose portion disposed adjacent the peripheral score and band. The tab is secured to a hinge section defined in the removable panel by a rupturable, bowed, generally U-shaped ancillary score which is disposed with its two ends adjacent the band and tab nose portion. This construction effectively reduces the intial rearward force required to effect panel removal.

Abstract: A carton with a reclosable hinged cover formed by laterally spaced cut score lines in its top panel and front glue flap. The cut score lines in the glue flap flare upwardly to form arrow locking tabs which may be pushed through the cover opening so that the shoulders of the tabs lock under the front edge of the top panel. In the preferred form, the cut score lines forming the shoulders of the locking tabs extend only a portion of the way through the thickness of the paperboard and the cut score lines forming the cover portions in the top panel and glue flap are of the inside-outside double cut score type which provides partial thickness locking tabs and an overlapping cover.

Abstract: A molecularly oriented article having a tubular sidewall is blow-molded from a thermoplastic parison which is heat-treated prior to blowing to provide the parison sidewall with a temperature gradient wherein the temperature of the inside of the sidewall is greater than that of the outside, both of said temperatures being within the orientation temperature range of the thermoplastic. The temperature gradient results in the sidewall of the article having a different and more uniform circumferential orientation release stress distribution radially across the sidewall than would be obtained if the parison were blown isothermally.

Abstract: Cellular polyurethane exhibiting excellent thermal and oxidative stability can be prepared using specified methyl-, allyl-, phenyl- or benzyltin compounds as the polymerization catalyst. These catalysts are hydrolytically stable over extended periods of time, and can therefore be incorporated into precursors or masterbatches for polyurethanes that contain water as the foaming agent.

Abstract: Flame retardant polymer compositions comprise stannic oxide hydrate in combination with hydrated zinc borate and a halogen source which may be the polymer itself. The zinc borate comprises from 50 to 65%, by weight of the oxide-borate mixture. Polymers that incorporate these flame retarding compositions exhibit improved flame retardant characteristics together with effective color stability in the presence of heat.

Abstract: This invention relates to a composition and process for electrodepositing semi-bright to bright brass from an aqueous alkaline cyanide electroplating solution containing at least one copper compound providing copper ions, at least one zinc compound providing zinc ions, and as a cooperating additive 0.1 to 10 grams per liter of at least one compound having the following generalized structural formula: ##STR1## where R.sub.1 and R.sub.2 are separately hydrogen, an alkyl group such as methyl, ethyl, isopropyl, etc., or a hydroxy alkyl group such as hydroxy methyl, hydroxy ethyl, etc. and R.sub.3 is hydrogen or a straight or branched chain alkyl sulfonic or carboxylic acid of from one to ten carbon atoms, or salts thereof, or a straight or branched chain hydroxy alkyl group of from one to five carbon atoms.

Abstract: An inspection apparatus for inspecting and detecting flaws in serially fed substantially cylindrical objects. The inspection apparatus includes a notch-shaped inspection station formed by a pair of drive wheels mounted on a first shaft and a pair of discharge wheels fixedly mounted on a second shaft, parallel to the first shaft. A hook having a convex back surface is connected to and protrudes beyond the circumference of each discharge wheel. An L-shaped bracket whose body includes a sending surface and whose leg includes an infeed cradle, is mounted above the drive wheels and pivots in synchronism with the rotation of the discharge wheels. A first object in the infeed cradle is positively sent by the bracket sending surface toward the inspection station as the hook convex back surfaces are rotating up through the inspection station.

Abstract: A composition and process for selectively removing nickel and nickel alloys with iron and/or cobalt from a surface of a metal substrate which comprises contacting said metal surface with an aqueous bath containing:A. at least one nitro substituted organic compound:B. at least one organic amine or polyamine or substituted amine or polyamine; andC. at least one phosphorus oxo acid or organic phosphorus oxo acid or salts thereof or alkyl phosphonate substituted amines.By nickel-iron alloy deposit is meant a deposit containing from about 5 to 90 percent by weight iron with that portion which is not iron being primarily nickel or nickel and cobalt. Although small amounts of impurities such as copper, zinc, cadmium, lead, etc. may also be present, the major constituents of the alloy are nickel and iron.

Abstract: Polyvinyl chloride compositions suitable for use as food packaging materials are stabilized against the degradative effects of heat using a mixture of di-n-octyltin-S,S'-bis(isooctyl mercaptoacetate) and an oligomeric form of di-n-octyltin maleate wherein the weight ratio of the two component stabilizers is between 1:3 and 4:1, respectively. The combination of stabilizers imparts a greater degree of stabilization than can be achieved using either component at a concentration equal to that of the mixture, as evidenced by a delay in the appearance of severe discoloration during exposure to temperatures of 250.degree. C. and higher.

Abstract: The melt viscosity of vinyl chloride polymers is effectively stabilized using linear polysulfides containing specified elements or organic radicals as terminal groups on the chains of sulfur atoms.

Abstract: A metal forming die having a unique profile is provided for use in producing cylindrical articles of elongated sidewall configuration. Most notably, the die is applicable to the production of drawn and ironed can shells.

Abstract: A shutter, adapted for use in a system for the radiation curing of a line of articles, includes a number of adjacent baffle units, the blades of which are configured and spaced to substantially prevent the passage of radiation, while permitting the flow of air through the shutter. To minimize the tendency of thermal expansion to distort the shutter, the units are expandably mounted along the length of the supporting frame, and the blades extend transversely thereof.

Abstract: A circular lid is produced from a blank, which consists of a main circular portion from which projects at least one detachable tab. The tab provides a rectilinear trailing edge on the blank, which is adapted for contact by spaced lugs of a conveyor, so that when the blank is pushed through an associated machine by the lugs bearing thereupon, its rotational orientation is maintained. This ensures that registered, sequential operations can be performed on the blank, such as gluing, window film application, printing, and the like.