摘要:
A coating composition contains an organic polyol, a polyepoxide, a polyisocyanate crosslinking agent, and a phenolic resin. The composition is flexible, having an elongation of at least 10 percent when cured. This coating composition is particularly suitable as a primer in preparing substrates with a multilayer coating having good flexibility.
摘要:
A coating composition contains an organic polyol, a polyepoxide, a blocked polyisocyanate crosslinking agent, and a phenolic resin. The coating composition also can be formulated as a two package coating composition with a free polyisocyanate crosslinking agent. The composition is flexible, having an elongation of at least 10 percent when cured. This coating composition is particularly suitable as a primer in preparing substrates with a multilayer coating having good flexibility.
摘要:
A coating composition contains an organic polyol, a polyepoxide, a polyisocyanate crosslinking agent, and a phenolic resin. The composition is flexible, having an elongation of at least 10 percent when cured. This coating composition is particularly suitable as a primer in preparing substrates with a multilayer coating having good flexibility.
摘要:
A storage system comprises a bottom, a plurality of sides, a cover and a plurality of vertical dividers. The sides are fixed to the bottom and the cover is located to have open and closed positions with respect to the sides, opposite the bottom. The vertical dividers are arranged in first and second transverse orientations between the sides, forming vertical storage units for hanging lures. A plurality of ventilation and drainage holes are formed in the bottom panel, and the top and at least two of the sides are transparent to visible light. Each of the bottom, sides, and cover is formed of an impact-resistant thermoplastic having a thickness of at least 4 mm, such that the cover supports a weight of at least 220 lbs when in the closed position.
摘要:
Novel compounds are provided having the structural formula R[--N(NO.sub.2)--L--R.sup.1 ].sub.n wherein R, L, R.sup.1 and n are defined herein. The compounds are useful in a variety of contexts, but are primarily to be used as high energy oxidizing agents in explosive compositions, propellant formulations, gas-generating compositions and the like. The compounds are also useful as pharmaceutical agents. Compositions containing the compounds are also provided, including energetic compositions, as are methods for using the novel compounds and compositions.
摘要:
Apparatus and methods are disclosed whereby elongate preformed thermoplastic elements are friction-welded coaxially in an end-to-end manner so that the core elements are joined integrally to one another. Most preferably, the elongate elements are perforated tubular elements formed of a thermoplastic material which are employed as core elements in the production of cylindrical melt-blown filter cartridges. As such, the integrally joined core elements can be rotated and traversed as a unit relative to a melt-blowing die during the continuous production of indefinite length cylindrical melt-blown filter cartridges.
摘要:
Filtration medium is formed of a mass of nonwoven melt blown support and filtration fibers which are integrally co-located with one another. The support fibers have, on average, relatively larger diameters as compared to the filtration fibers which are integrally co-located therewith. Preferably, the filtration medium is disposed within at least one annular zone of a filtration element, for example, a disposable cylindrical filter cartridge having an axially elongate central hollow passageway which is surrounded by the filtration media. A depth filter cartridge in accordance with the present invention may thus be formed having one or more additional filtration zones (which additional filtration zones may or may not respectively be provided with integrally co-located support fibers) in annular relationship to one another. As a result of the melt blown, nonwoven fiber structure in accordance with the present invention whereby at least one filtration zone is comprised of relatively larger diameter support fibers integrally co-located with relatively smaller diameter filtration fibers, a filter cartridge having a wide range of "engineered" physical properties (e.g., in terms of filtration, pressure drop tolerance and the like) can be provided.
摘要:
A method is disclosed for forming an ionically bonded dinitramide salt or acid useful as a stable oxidizer for solid fuel rocket propellant or explosive formulations is disclosed. The dinitramide salt is formed by the reaction of an N(alkoxycarbonyl)N-nitroamide and a nitronium-containing compound, at a temperature of from about +60.degree. C. to about -120.degree. C., followed by contacting the reaction mass with a base to form the dinitramide salt, or an alcohol to form the corresponding dinitramidic acid. The N(alkoxycarbonyl)N-nitroamide may be formed by first mixing the corresponding alkylcarbamate with an anhydride of one or more 1-20 carbon organic acids, then adding nitric acid to the reaction mixture. If the salt of the N(alkoxycarbonyl)N-nitroamide is to be formed, a base is then added until the pH reaches about 7-10. The nitronium-containing reactant may be a covalently bonded compound containing a NO.sub.2 -- group; a nitryl halide; or a nitronium salt having the formula (NO.sub.2.sup.+).sub.q X.sup.-q, where X is the anion of the nitronium salt and q=1-2.
摘要:
A transparent, portable secure container is configured to accommodate a standard retail package for a consumer product not legally purchased by minors. The container comprises a plurality of panels, a hinge and a lock. Some of the panels are joined to form the container, such that the container conforms to outside dimensions of the standard retail package. One of the panels is coupled to the container via the hinge to form a door. The lock secures the container by locking the door in a closed position. The panels are formed of a lightweight, durable structural material, such that the container is portable. At least one of the panels is transparent, such that the container provides an interior view when the door is in the closed position.