Abstract: A two-component liquid reagent and process is provided for detecting the presence of furfural in petroleum products.

Abstract: A water-activatable adhesive useful for adhering a solar film, polyester (polyethylene terephthalate) film, to glass or to metal substrates. The adhesive comprises the reacted product of (A) gamma-isocyanatopropyltriethoxy silane, containing a free isocyanate (NCO) group, and (B) a thermoplastic polyester formed by reacting (i) a dibasic acid selected from the group consisting of terephthalic acid, isophthalic acid and hexahydrophthalic acid, and mixtures thereof, with (ii) a polymethylene glycol of the formula HO(CH.sub.2).sub.x OH where x is an integer from 2 to 10, neopentyl glycol and glycerin, and mixtures thereof, and (iii) an aliphatic dibasic acid selected from the group consisting of those having the formula HOOC(CH.sub.2).sub.n COOH where n is an integer from 1 to 8, and mixtures of such acids, whereby substantially no free NCO remains in the adhesive.Solar film is used for absorbing and/or reflecting solar radiation.

Abstract: A water-activatable adhesive useful for adhering a solar film, polyester (polyethylene terephthalate) film, to glass. The adhesive comprises the reacted product of (A) gamma-isocyanatopropyltriethoxy silane, containing a free isocyanate (NCO) group, and (B) a thermoplastic polyester formed by reacting (i) a dibasic acid selected from the group consisting of terephthalic acid, isophthalic acid and hexahydrophthalic acid, and mixtures thereof, with (ii) a polymethylene glycol of the formula HO(CH.sub.2).sub.x OH where x is an integer from 2 to 10, neopentyl glycol and glycerin, and mixtures thereof, and (iii) an aliphatic dibasic acid selected from the group consisting of those having the formula HOOC(CH.sub.2).sub.n COOH where n is an integer from 1 to 8, and mixtures of such acids, whereby substantially no free NCO remains in the adhesive.Solar film is used for absorbing and/or reflecting solar radiation.

Abstract: An improved epoxy molding composition for encapsulating microelectronic devices wherein the molding composition, after conversion to a thermoset condition, i.e., infusible state, by the application of heat and pressure, displays a low coefficient of thermal expansion and a high thermal conductivity. The dual properties of low coefficient of thermal expansion and high thermal conductivity are imparted to the molding composition by the incorporation therein of a specific anisotropic, polycrystalline, sintered ceramic product which is relatively non-abrasive and free of ionic contaminants and which has cordierite as its primary phase, consisting essentially on an analytical oxide basis of 11.5 to 16.5% RO, 33 to 41% Al.sub.2 O.sub.3 and 46.6 to 53% SiO.sub.2.

Abstract: A process for preparing a retort-proof laminate for packaging foodstuffs which comprises laminating an aluminum substrate to at least one polyolefin film selected from the group consisting of high density-polyethylene, polypropylene, ethylene-propylene copolymers and polybutene films using as an adhesive a specific polyolefin resin in melted state prepared by combining together (A) at least one member selected from the group consisting of high-density polyethylene, polypropylene ethylene-propylene copolymers and polybutene, (B) maleic anhydride and (C) aluminum hydroxide, and by rendering said specific polyolefin resin substantially free from unreacted maleic anhydride and low molecular weight maleic anhydide homopolymers.The process also includes preparing a retort-proof coated aluminum substrate for packaging foodstuffs which comprises coating an aluminum substrate with a layer formed from the above-described specific polyolefin resin and thereafter forming a suitable retort packaging container therefrom.

Abstract: Thermoplastic polyurethane compositions having excellent mechanical and thermal properties, high hardness and the capabilty of binding or adhering to magnetic pigments, formed by reacting 1,4-cyclohexanedimethanol with a dicarboxylic acid such as adipic, azelaic or 1,12-dodecanedioic acid, or mixtures thereof in a hydroxyl number range of from about 50 to about 250 to form a hydroxyl-terminated polyester, combining the polyester so formed with a chain extender to form a mixture in a hydroxyl number range of from about 130 to about 300 and reacting said mixture with a diisocyanate to form the polyurethane resin. Such polyurethanes display excellent binding properties for adhering magnetic iron oxide or other magnetic pigments to flexible substrates to form magnetic tape.

Abstract: A process for preparing the compound 5-t-butyl-2-methylamino-1,3,4-thiadiazole, ##STR1## in high yield by the reaction of 4-methyl-3-thiosemicarbazide with pivalic acid in a solution containing both polyphosphoric acid and concentrated sulfuric acid, followed by neutralizing the reaction mixture with a neutralizing mixture comprising an organic solvent and an alkaline substance dissolved in water and separating 5-t-butyl-2-methylamino-1,3,4-thiadiazole from the organic phase.

Abstract: New markers for petroleum fuels; a method of marking said fuels with a marker and of subsequently detecting the presence of said marker; and marked fuels are provided. The markers include the following compounds: ##STR1## 1-(4-morpholino)-3-(alpha naphthylamino)-propane, ##STR2## 1-(4-morpholino)-3-(beta naphthylamino)-propane, ##STR3## where R.sub.1 and R.sub.2 may be hydrogen or alkyl having from one to twenty carbon atoms.The marker is detected in said marked fuel by (1) extraction with an acidic aqueous solution and (2) admixture with a stabilized solution of diazotized 2-chlor-4-nitroaniline to yield a color characteristic of the marker.

Abstract: Novel disazo colorants or dyes for marking organic liquids, the colorants having the general formula ##STR1## where R.sub.1 is H, CF.sub.3, or alkyl having from 1 to 4 carbon atoms,R.sub.2 is H, or alkyl having from 1 to 4 carbon atoms,R.sub.3 and R.sub.4 are each H, OCH.sub.3, OC.sub.2 H.sub.5 or CH.sub.3, andR.sub.5, r.sub.6 and R.sub.7 are each H, or alkyl having from 1 to 12 carbon atoms, at least one of said R.sub.5, R.sub.6 and R.sub.7 being alkyl.The novel compound of the general formula ##STR2## where R.sub.5, R.sub.6 and R.sub.7 are as described above is provided and is useful as an intermediate in the preparation of said disazo colorants. Methods for the preparation of the colorants are disclosed together with qualitative and quantitative procedures for detecting these colorants in the marked liquids.

Abstract: Acidic hydrosols are provided for forming an electrically insulating and corrosion resistant coating on a substrate which consumes a minor quantity of acid from said hydrosol, said substrate being selected from the group consisting of metals higher than hydrogen in the electromotive series, porcelain, glass, wood, paper, cotton, plastics and hydrateable oxides.The hydrosols of this invention are formed by admixing water, an acid such as phosphoric acid, or nitric acid, or hydrochloric acid or acetic acid or mixtures thereof, a metal silicate or hydrous magnesium silicate, and optionally, a magnesium compound and a boron compound. A significant feature of the present hydrosols is their water-white clarity and resistance to deterioration or decompositin for at least 15-20 minutes, and their ability to deposit a substantially uniform coating virtually instantaneously upon said substrates when placed in contact therewith.

Abstract: A process for preparing from aqueous NaCl brine containing appreciable quantities of dissolved calcium sulfate high purity dendritic salt, characterized by an exceptionally low calcium sulfate content. The process is carried out by a "feed and bleed" procedure comprising admixing an alkali metal polyphosphate with said brine to increase the supersaturation of calcium sulfate therein, feeding the brine containing this additive into an evaporating and crystallizing chamber, evaporating the brine at an elevated temperature and reduced pressure to cause crystallization of pure salt and concomitantly bleeding brine from the chamber, the rate of feed of the brine to the chamber and the rate of bleed of brine from the chamber being such as to maintain the calcium sulfate in the dissolved state and prevent its precipitation with the salt.

Abstract: Novel disazo colorants or dyes for marking organic liquids, the colorants having the general formula ##STR1## where R.sub.1 is H, CF.sub.3, or alkyl having from 1 to 4 carbon atoms,R.sub.2 is H, or alkyl having from 1 to 4 carbon atoms,R.sub.3 and R.sub.4 are each H, OCH.sub.3, OC.sub.2 H.sub.5 or CH.sub.3, andR.sub.5, r.sub.6 and R.sub.7 are each H, or alkyl having from 1 to 12 carbon atoms, at least one of said R.sub.5, R.sub.6 and R.sub.7 being alkyl.The novel compound of the general formula ##STR2## where R.sub.5, R.sub.6 and R.sub.7 are as described above is provided and is useful as an intermediate in the preparation of said disazo colorants. Methods for the preparation of the colorants are disclosed together with qualitative and quantitative procedures for detecting these colorants in the marked liquids.

Abstract: Azo dyes which are highly soluble in petroleum fuels. The dyes have the general formula ##STR1## where R.sub.1, R.sub. 2, R.sub. 3, and R.sub.4 are each H or CH.sub. 3 and R.sub. 5 is either 2-ethylhexyl or 2-ethylhexyloxypropyl. When R.sub. 5 is 2-ethylhexyl, then at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is CH.sub.3. When R.sub.5 is 2-ethylhexyloxypropyl, then each of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is H, or at least one of R.sub.1, R.sub.2, R.sub.3 and R.sub.4 is CH.sub.3 provided that R.sub.1 and R.sub.3 are not both CH.sub.3 at the same time that R.sub.2 and R.sub.4 are each H, and provided that R.sub.2 and R.sub.4 are not both CH.sub.3 at the same time that R.sub.1 and R.sub.3 are both H.

Abstract: Novel oxime-carbamates of the formula ##SPC1##WhereinR.sub.1 is --CH.sub.3, --CH(CH.sub.3).sub.2, ##EQU1## --C(CH.sub.3).sub.3, or --C.sub.6 H.sub.5 ; R.sub.2 is --H or --CH.sub.3 ;R.sub.3 is --CH.sub.3, --CH.sub.2 CH.sub.3, --(CH.sub.2).sub.2 CH.sub.3, --(CH.sub.2).sub.3 CH.sub.3, --CH.sub.2 CH.sub.2 Cl or --C.sub.6 H.sub.5 ;R.sub.4 is --H, --CH.sub.3, --CH.sub.2 CH.sub.3, --(CH.sub.2).sub.2 CH.sub.3, --CH(CH.sub.3).sub.2, --(CH.sub.2).sub.3 CH.sub.3, --CH.sub.2 CH=CH.sub.2, --CH.sub.2 C.tbd.CH, --C.sub.6 H.sub.5, ##EQU2## --CH (OH)CCl.sub.3, --CH.sub.2 CH.sub.2 X.sub.1, where X.sub.1 is --Cl, --Br, --NH.sub.2, --OH, --OCOCH.sub.3, --OCOCH.sub.2 Cl, or --OCONHCH.sub.3 ;R.sub.5 and R.sub.6 are each --H or --CH.sub.3, with the proviso that when R.sub.5 and R.sub.6 are both CH.sub.3 then both CH.sub.3 groups may be on either the same carbon atom or on different carbon atoms;R.sub.7 is H, --CH.sub.3 or --CH.sub.2 C.sub.6 H.sub.5 ;X.sub.

Abstract: Novel isocyanophenyl carbamates of the formula ##EQU1## wherein X.sub.1 and X.sub.2 are each oxygen or sulfur;R.sub.1 and R.sub.2 are each hydrogen, alkyl (C.sub.1 -C.sub.4), aryl, substituted aryl, or cycloaliphatic;R.sub.3 is selected from the group consisting of alkyl (C.sub.1 -C.sub.6), alkoxy, allyl, methylenedioxy, haloalkyl, propargyloxy and allyloxy;n is an integer from 0 to 4 inclusive; andA is phenyl or naphthyl.These compounds are useful as insecticides and acaricides.

Abstract: Magnesium oxide coating compositions, process for their preparation and process for applying said compositions as adherent dried coatings which when annealed form relatively non-porous insulations providing improved electrical insulating properties. The coating compositions comprise a major proportion of magnesium oxide and a minor proportion of zinc permanganate and magnesium sulfate, wherein the concentration of zinc permanganate is from about 4 to about 16 parts per 100 parts of magnesium oxide and the concentration of magnesium sulfate is at least about 50 parts per 100 parts of zinc permanganate.