Abstract: The invention comprises an externally mounted locking mechanism for telescoping tubes that permits releasable adjustment of the tubes to any telescoping position relative to each other and utilizes multiple cam action locking means operating both longitudinally and circumferentially relative to the tubes. Two preferred embodiments are disclosed, a two-piece structure and a three-piece structure, both of which are preferably molded from a plastic material.

Abstract: A can for housing and dispensing liquid or pasty masses under pressure, comprising a substantially dimensionally stable, pressure-tight outer container having an opening edge upon which there is sealingly secured a valve plate equipped with a dispensing valve. An at least partially deformable inner container includes a neck portion whose opening edge is sealingly secured at the valve plate or at the part of the dispensing valve protruding into the interior of the can.

Abstract: Hydrogen sulfide, sometimes referred to as "rotten egg" gas occurs commonly in nature, particularly about oil and gas wells in drilling, completing and working over of wells and is dangerously toxic to workmen and devastatingly corrosive to bore hole casings and drilling equipment. It also contaminates natural gas produced by some wells.Here it has been found that a water soluble zinc ammonium carbonate complex provides nearly quantitative removal of hydrogen sulfide by intimately contacting the carrier thereof with substantially stoichiometric qualities of said complex in aqueous solution.

Abstract: This invention relates to radiation polymerizable compositions particularly useful in the preparation of printing inks and to a method of preparing said radiation polymerizable compositions which comprises (1) a condensation product with (2) up to about 90% by weight thereof of at least one ethylenically unsaturated monomer and (3) up to about 50% by weight thereof of at least one sensitizer. The condensation products are prepared by condensing at least one alkoxy-methyl amino-triazine or methylol aminotriazine with one or more polyols, e.g. raw castor oil and at least one hydroxy-alkyl acrylate. The polymerizable composition may be cured with radiation, e.g. light or electrons to obtain coatings useful for a variety of purposes.

Abstract: This invention relates to novel fast-drying aliphatic solvent soluble acrylic-styrene polymer vehicles of paramount value as the binder vehicle for enamels and particularly for automotive after-market refinishing.Improvement in the quality and durability of automotive enamels in general has been outstanding with the advent of acrylic polymers useful as the adhesive binder in coatings for cars. When applied in production lines to automobile bodies originally under factory conditions, the use of high solvency enamel solvents and reducers has been a relatively obscure problem until recognition of the contribution of aromatic hydrocarbons solvents to smog development. Priorly curing or drying automotive paint films at a rapid speed has been feasible with elevated temperatures with little or no concern for energy consumption or atmospheric pollution. Large capital expenditures for high production rates with concurrent energy consumption have been heretofore acceptable generally.

Abstract: This invention is directed to a process for preparing 2-benzimidazolone which comprises reacting 2'-carbamoylphthalanilic acid in an alkaline medium with a metal hypohalite.

Abstract: This invention is directed to a process of preparing thioxanthones derived from ortho-chlorosulfenylbenzoyl chloride and aromatic compounds in the presence of Friedel-Crafts catalyst.

Abstract: Polymer forming reactions have been previously known comprising five and six member oxazoline ring oxazolidines and reaction products containing the basic structure with polyfunctional aromatic and aliphatic isocyanates and moisture. Five types of oxazolidines have been previously illustrated. Use of these polymeric products have been found to be limited as the class of oxazolidines described in the prior art result in objectionable dark colored products. This invention relates to an advance thereover in providing light colored end products by use of a novel and specific dioxazabicyclo octanes, a substituted specialized class of oxazolidine ring compounds.

Abstract: This invention is directed to mixed esters of starch and to the method of preparing and the use of said starch esters which are derived from (a) low molecular weight hydrolyzed starch having a plurality of anhydroglucose units and (b) at least about 0.5 mole of a cylating agent per anhydroglucose unit consisting of mono- and polycarboxylic acid anhydrides and acyl halides. These anionic esters of starch with average molecular weights ranging up to 100,000 are characterized as having a high degree of substitution, i.e. ranging up to 3.0 wherein at least about 0.1 of the total degree of substitution consist of ester groups having pendant carboxyl radicals derived from anhydrides of polycarboxylic acids.

Abstract: The invention relates to photoconductive N-vinyl carbazole copolymers characterized as having electron donor and electron acceptor groups in the same polymeric chain and the use of said copolymers as photoconductive materials on various substrates.

Abstract: This invention is directed to aqueous compositions and to the process for preparing same which comprises a dispersion of polymeric resin binders and pigments in an aqueous system with a dispersant. The dispersant consists of half-esters of starch derived from (a) low molecular weight hydrolyzed starch having a plurality of anhydroglucose units or a derivative of said starch and (b) at least about 0.25 mole of at least one cyclic anhydride of a polycarboxylic acid for each anhydroglucose unit of the hydrolyzed starch and/or its derivatives.These half-ester starch dispersants are characterized as having pendant carboxyl groups and average molecular weights ranging up to about 100,000 with a high degree of substitution, i.e. wherein on an average of about 0.25 to 3.0 of the hydroxyl groups of each anhydroglucose unit are esterified. The unreacted carboxyl groups pendant from the backbone of the starch esters may be further reacted, i.e.

Abstract: This invention is directed to aqueous compositions and the process for preparing same and more specifically to aqueous coating compositions comprising polymeric resin binders and pigments dispersed in an aqueous system with starch ester dispersants. The dispersant consists of mixed esters of starch derived from (a) low molecular weight hydrolyzed starch having a plurality of anhydroglucose units or a derivative of said starch and (b) at least about 0.5 mole of acylating agent for each anhydroglucose unit of the hydrolyzed starch or its derivative. The acylating agent is a combination of anhydrides or acyl compounds consisting of (i) from about 0.1 to 2.9 moles of at least one anhydride of a polycarboxylic acid and (ii) from 0.1 to 2.9 moles of at least one compound selected from the class consisting of anhydrides of monocarboxylic acids and the acyl halides of monocarboxylic acids.

Abstract: An easy dispersing alkali blue type pigment product and a process for making the same is provided which retains the color strength per unit alkali blue present of a flushed color product, but which contains less oil phase than a flushed color and is a free-flowing powder. The pigment can be very easily dispersed in oleoresinous systems such as printing inks, paints, plastics and the like to develop an outstanding fineness of grind and substantially full color strength.The pigmentary product of this invention is free-flowing and contains at least about 50% by weight of alkali blue pigment solids, and preferably more, coprecipitated with at least one organic dispersant of the anionic class containing at least eight carbon atoms, said dispersant is soluble in aqueous alkaline solutions and precipitated therefrom upon acidification.

Abstract: This invention is directed to mixed esters of starch and to the method of preparing and the use of said starch esters which are derived from (a) low molecular weight hydrolyzed starch having a plurality of anhydroglucose units and (b) at least about 0.5 mole of acylating agent per anhydroglucose unit consisting of mono- and polycarboxylic acid anhydrides and acyl halides. These anionic esters of starch with average molecular weights ranging up to 100,000 are characterized as having a high degree of substitution, i.e. ranging up to 3.0 wherein at least about 0.1 of the total degree of substitution consist of ester groups having pendant carboxyl radicals derived from anhydrides of polycarboxylic acids.

Abstract: This invention relates to a process for preparing benzoxazines and more particularly 2-substituted-4H-3,1-benzoxazine-4-ones, obtained by reacting at least at about room temperature in the presence of an effective amount of a tertiary amine an isatoic anhydride with an acylating compound consisting of either a carboxylic acid anhydride or an acyl halide.

Abstract: This invention is directed to the use of substituted benzotriazoles and more specifically the carboxylated benzotriazoles including the alkali metal salts and alkyl esters thereof as inhibitors for metal in various corrosive organic liquids and aqueous mediums.

Abstract: Colored organic solid particles of potential value as pigments are partially milled to an extent less than that required to develop full pigmentary strength by size reduction and further conditioned concurrently with a flushing step. The organic pigment particles are transferred from an aqueous dispersion to an organic hydrophobic vehicle in the presence of an organic breaching agent. The resulting flushed pigmented vehicle has pigmentary strength at least equal to that obtained by fully conditioning the crude particles without the breaching treatment. The conditioned pigments need not be recovered as a dry powdered product. The process is valuable in the manufacture of flushed phthalocyanines, quinacridones, etc., with substantial improvement in equipment utilization in milling. The flushed pigmented vehicles are useful in manufacture of paints, varnishes, lacquers, inks, color concentrates, and formulations for mass coloration of plastics.

Abstract: This invention is directed to electroconductive paper and to the processes for preparing same which comprises a substrate containing an effective amount of an electroconductive water soluble, quaternary ammonium polymer. The polymer is prepared by reacting substantially stoichiometric amounts of at least one aromatic ditertiary amine and one or more anion-containing organic compound. The polymer is applied to the substrate, e.g. paper by conventional methods to obtain a coated surface characterized as having a resistivity of less than about 10.sup.11 ohms per square centimeter at relative humidities ranging from about 10% to 90%.

Abstract: A composition consisting of (A) an aromatic amine of the formula R--NH.sub.2 wherein R is a monosubstituted or disubstituted phenyl radical in which one substituent group is an alkoxy group of 1 to 4 carbon atoms in one of the positions ortho and para to the NH.sub.2 group and the other substituent is an alkyl group of 1 to 4 carbon atoms or a chlorine atom in any position on the benzene ring, the former substituent group is present when the radical is both monosubstituted and disubstituted while the latter substituent is present only when the radical is disubstituted, (B) from about 0.001 to about 0.20 percent by weight of a heterocyclic compound containing 2 to 8 carbon atoms, 2 to 3 sulfur atoms, 1 to 2 heterocyclic nitrogen atoms, at least 2 hydrogen atoms and a single heterocyclic ring with 2 or more carbon atoms, 1 to 2 nitrogen atoms and 1 to 2 sulfur atoms with the substituents on the nitrogen atoms being restricted to hydrogen atoms, and (C) from about 0.001 to about 0.