Abstract: Embodiments of the present invention provide for real-time bidding of DOOH advertising units. The systems and methods provide for an API associated with at least one DOOH display, wherein the API is configured to receive a bid request indicating an available advertising unit from the at least one DOOH display, provide the bid request to at least one buyer; and receive a bid response from the at least one buyer, wherein the bid response includes content to be played at the at least one DOOH display.

Abstract: A manhole includes a carriage mounted on the underside of the cover that cooperates with a supporting guide channel located across the mouth of the manhole. the guide channel can be rotated to an incline so that the carriage can easily roll onto and from the supporting guide member. The free end of the guide channel is raised and lowered by a standard ratchet wrench inserted through the cover so that the operator need not lift any part of the cover manually. Once raised to the ready position, the operator simply pulls laterally on the cover handle to roll the cover slightly upward and laterally from the manhole opening. Once the cover clears the manhole, the guide channel can be rotated up and outward to provide access to the entire manhole area , if desired. To replace the cover, the guide channel is rotated to again extend across the manhole, the cover/carriage assembly is rolled laterally on to the guide channel until the cover edge contacts the ring edge.

Abstract: A process for the production of glycidyl ether of an aliphatic, cycloaliphatic or araliphatic primary or secondary alcohol, comprising:A) reacting epichlorohydrin with a molar excess of the alcohol in the presence of a Lewis acid catalyst; optionallyB) dehydrochlorinating the product so obtained; andC) reacting the product from step A) or B) with a molar excess of epichlorohydrin in the presence of alkali and a phase transfer catalyst, and then isolating the glycidyl ether product so obtained.

Abstract: A data-carrying laminate such as a credit card or identity card comprises a sheet of cellulosic material or synthetic material and a thermoplastic polymeric film, at least one of said sheet and said thermoplastic film carrying data, said sheet and said thermoplastic film being bonded together by a cured adhesive layer obtained by curing a solid film adhesive comprising (A) a solid polymer of a vinyl carboxylic acid and (B) a curable material having at least one acrylate or methacrylate group.

Abstract: Curable compositions comprise:(A) an epoxide resin(B) as latent curing agent for (A), dicyandiamide or a polycarboxylic acid hydrazide, and(C) as cure accelerator dispersed as a powder in the composition, a Mannich base of a polymeric phenol.The compositions are particularly useful as adhesives and sealants.

Abstract: Curable liquid compositions comprise(A) a liquid epoxide resin and(B) as curing agent for (A), more than 10% by weight, based on the weight of (A), of a solid solution of a polymeric phenol, such as a polymer of p-vinyl phenol or a phenolic novolak resin, and a polyamine having at least one primary amine group, such as diethylenetriamine or triethylenetetramine, the solid solution (B) being disposed as a powder in the epoxide resin. The compositions are useful as adhesives.

Abstract: Heat-curable compositions are described, comprising(a) an epoxide resin and(b) an effective amount of a urea of formulaAr--NHCON(R.sup.3)R.sup.4whereAr represents an aromatic group linked through an aromatic carbon atom to the indicated nitrogen atom and which is substituted by an amido group, andR.sup.3 and R.sup.4 each represent an aliphatic, cycloaliphatic, or araliphatic hydrocarbyl group, optionally substituted by a halogen atom or a hydroxyl group, or R.sup.3 may further represent a hydrogen atom, or R.sup.3 nd R.sup.4, together with the indicated nitrogen atom, may represent a heterocyclic ring of 3 to 5 carbon atoms which may also have one oxygen atom in the ring.Such amidoarylureas may be used alone with the epoxide resin, or in combination with an accelerator for the heat-curing reaction, selected from dicyandiamide, carboxylic acid hydrazides, succinimide, cyanoacetamide, 1-cyano-3-(lower alkyl)guanidines, imidazoles, and carboxylic acid-tertiary amine salts.

Abstract: Epoxide resins are cured by heating with a hydroxyphenylurea of formula ##STR1## where R.sup.2 denotes --NH.sub.2, --NO.sub.2, --Cl, --Br, or alkyl, p denotes zero, x and y each denote zero or 1, and the sum of x+y is 1. Such hydroxyphenylureas may be used alone, as accelerators for heat-curing with other agents such as dicyandiamide, melamine, and carboxylic acid hydrazides, or may be used as the primary curing agent with promoters such as dicyandiamide, melamine, and carboxylic hydrazides.

Abstract: Thixotropic epoxide resin compositions, suitable for use as laminating resins, paints and lacquers, impregnating and casting resins, potting, insulating, and caulking compounds, sealants, and adhesives, are prepared by adding to an epoxide resin(a) a base having a basic strength, pK.sub.b, of 9 or less,(b) an organo-orthosilicate of formula(RO).sub.4 Siwhere R represents an alkyl group, optionally substituted by one or more halogen atoms or alkoxy groups, an aryl or aralkyl group which may be substituted by one or more halogen atoms, alkyl groups, or alkoxy groups, or a heterocyclylalkyl group, and(c) water.Such compositions may further contain(d) a curing agent for epoxide resins, which agent may be the same as, or different from, the base (a).

Abstract: Curable compositions comprising an epoxide resin and an aliphatic amine curing agent are rendered less viscous, and their rate of cure is accelerated, by the addition of an ester of the formula ##STR1## wherein n represents an integer of from 1 to 6,R represents the residue of a mono- or polyhydric alcohol or phenol after removal of n hydroxy groups, andR.sup.1, R.sup.2, and R.sup.3 may be the same or different and each represents a hydrogen or halogen atom or an alkyl group, or one or two of R.sup.1, R.sup.2, and R.sup.3 may alternatively represent an acyloxy group.Typical such esters of formula I include diphenyl carbonate, bis(phenoxycarbonyloxy) polybutadiene, and tris(phenoxycarbonyloxy) poly(oxypropylene). The compositions may be cured at room temperature and are particularly suitable for use as coatings and castings.

Abstract: Epoxide resins are cured by heating with a hydroxyphenylurea of formula ##STR1## where R.sup.2 and R.sup.3 each represent a (cyclo)alkyl, (cyclo)alkenyl, or aralkyl group, optionally substituted by --OH, --CN, or a halogen atom, with the proviso that R.sup.2 may also represent --H, or R.sup.2 and R.sup.3 together with the indicated attached N atom represent a heterocyclic radical, R.sup.4 denotes --NH.sub.2, --NO.sub.2, --Cl, --Br, or alkyl, and p denotes zero, 1, or 2. Such hydroxyphenylureas may be used alone, as accelerators for heat-curing with other agents such as dicyandiamide, melamine, and carboxylic acid hydrazides, or may be used as the primary curing agent with promoters such as dicyandiamide, melamine, and carboxylic hydrazides.

Abstract: Curable compositions contain an epoxide resin and a silamine of the general formula ##STR1## wherein R.sup.1 represents the divalent residue of an aromatic or araliphatic diprimary amine after removal of the two primary amino groups,R.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6, which may be the same or different, represent alkyl or aryl groups, andn represents zero or an integer of from 1 to 10.These compositions are stable for prolonged periods in the absence of water, but cure rapidly at room temperature or at elevated temperatures in the presence of water.

Abstract: Curable compositions contain an epoxide resin and, as curing agent, a mixture of(a) a silamine of the general formula ##STR1## wherein either m represents 1, in which case R.sup.1 represents the divalent residue of an aromatic, aliphatic, araliphatic, or cycloaliphatic diprimary amine after removal of two primary amino groups, and n represents zero or an integer of from 1 to 10, or m represents 2, in which case R.sup.1 represents the trivalent residue of an aliphatic triprimary amine after removal of the three primary amino groups, and n represents zero, andR.sup.2, R.sup.3, R.sup.4, R.sup.5, and R.sup.6, which may be the same or different, represent alkyl or aryl groups, and(b) a substantially anhydrous organic acid or a phenol.These compositions are stable for prolonged periods in the absence of water, but cure rapidly at room temperature or at elevated temperatures in the presence of water, which may be as water vapor or liquid water.

Abstract: To accelerate the curing of epoxide resins by means of aromatic polyamines there is added magnesium nitrate or a nitrate of an at least divalent metal of Group IIB, IIIB, IVB, VIB, VIIB, or VIII of the Periodic Table.