Abstract: A modular stackable receptacle for pool chemicals or the like includes an upper cover and a lower container portion. The cover includes a continuous rectilinear sidewall having a latch ring on an inner surface thereof. An upper surface of the cover includes a product dispensing pour spout which receives a removable closure cap. The upper surface of the cover also includes a raised crown portion which is coplanar with the closure cap. Both the closure cap and the crown portion have stacking and aligning projections which cooperate with respective recesses formed in the bottom wall of the container portion, which recesses facilitate stable stacking of the receptacles, one atop another. The container portion has a continuous sidewall which includes an upper outwardly projecting rim and an outwardly projecting catch ring that is adapted to interlock with the latch ring on the cover, whereby the cover cannot be readily removed from the container.

Abstract: A non-erasable ink-jet composition that is the admixture of (1) an aqueous colored polyurethane dispersion that is the reaction product of (a) a colored urethane prepolymer that is the catalyzed reaction product of at least one polyol; at least one polyisocyanate; at least one internal surfactant; and at least one reactive colorant; wherein the ratio of internal surfactant to polyol and the ratio of NCO groups to total OH groups are predetermined stoichiometric equivalent molar ratios; (b) at least one neutralizing agent; (c) a first aqueous dispersing medium; and (d) at least one chain extender; (2) a second aqueous medium; and (3) at least one humectant; wherein the ink composition has a jettable viscosity from about 1 to about 20 centipoise at about 10.degree. C. to about 45.degree. C.

Abstract: A process for reducing trace levels of metallic impurities in cyclized polyisoprene resin is disclosed. The process reduces trace levels of metallic impurities in cyclized polyisoprene resin by washing an impure organic solvent/cyclized polyisoprene resin solution at least once with a heated aqueous acidic solution, and subsequently washing the resin at least once with heated water.

Abstract: A phase change ink composition is disclosed wherein the ink composition utilizes polymeric dyes in combination with a selected phase change ink carrier composition.

Abstract: A noncorrosive post-etch residue cleaning composition containing:(a) 1-70% by weight of an organic polar solvent having a dipole moment of more than 3.5;(b) 1-70% by weight of selected amine compounds having at least one hydroxyl group and a boiling point higher than 150.degree. C. at atmospheric pressure;(c) 0.1-10% by weight of selected amino acid having at least one hydroxyl group;(d) 1-20% by weight of selected redox reagent having a redox potential in the range between +1.0 V and -2.0 V vs. SHE (at pH=7); and(e) 0-90% by weight of water.

Abstract: A photosensitive compound comprising at least one o-quinonediazide sulfonic acid ester of a phenolic compound, said esters selected from the group consisting of formulae (IB) and (IIB): ##STR1## wherein the variables are as defined in the description.

Abstract: A process and apparatus for producing chlorine dioxide comprising chemically reducing chloric acid with water in the presence of any oxygen-evolving catalyst and in the absence of another acid or an added reducing agent, thereby producing chlorine dioxide and oxygen.

Abstract: A non-corrosive positive photoresist stripper composition comprising:(a) a solvent selected from N-methyl-2-pyrrolidone, N-hydroxyethyl-2-pyrrolidone, 1,3-dimethyl-2-imidazolidinone dimethylsulfoxide, and admixtures thereof;(b) a corrosion inhibitor selected form tricine, bicine, (2-benzothiozolythio)succinic acid, and admixtures thereof;(c) optionally, an alkanolamine selected from diethyleneglycolamine, monoethanolamine, diethanolamine, triethanolamine, and admixtures thereof;(d) optionally, water; and(e) optionally, a water-soluble surface active compound.

Abstract: A multifunctional terminally unsaturated urethane oligomer comprising the reaction product of (a) a terminally unsaturated isocyanate containing polyurethane oligomer with (b) an alkoxylated polyhydric alcohol.

Abstract: A chemically amplified-type radiation-sensitive composition comprising:(a) an alkali-soluble binder resin made by a condensation reaction of:(i) hydroxystyrene moiety having formula [1] or [2]: ##STR1## wherein x is an integer from 2 to 300; with (ii) a monomethylolated phenolic compound having a formula [8]: ##STR2## wherein R.sub.1 and R.sub.2 are individually selected from the group consisting of lower alkyl group having 1-4 carbon atoms, lower alkoxy group having 1-4 carbon atoms, amino group, and carboxylic acid group; wherein R.sub.3 and R.sub.

Abstract: A method and apparatus for detecting the presence of a vapor of an alkyl ester of phosphoric acid, particularly tributylphosphate, in ambient air. A sample of ambient air is heated to convert any alkyl ester of phosphoric acid to an alkene. The heated sample of air is then passed to a sample loop. Carrier air periodically carries a fixed volume of sample from the sample loop through a chromatographic column to a photoionization detector which detects the presence and amount of the alkene in the sample.

Abstract: Playpen and crib construction which utilizes a high modulus fiber-reinforced plastic matrix tubing in the frame, said tubing being made of lightweight, high modulus fiber-reinforced plastic matrix composite tubing having a weight of 0.25 pounds or less per lineal foot and wherein said plastic matrix is a thermoplastic resin or thermoset plastic resin with a minimum modulus of 250,000 psi; a minimum tensile strength of 6,000 psi; and a glass transition temperature of at least 50.degree. C. and wherein said high modulus fiber reinforcement is selected from the group consisting of carbon fibers, aramid fibers, glass fibers, polyolefin fibers, boron fibers and mixtures thereof.

Abstract: A non-corrosive photoresist composition containing:(a) 20-70% by weight of an organic polar solvent having a dipole moment of more than 3.5;(b) 70-20% by weight of selected amine compounds;(c) an effective amount of a chelating reagent comprising a mono- or poly-valent acid type of ligand covalently attached to a polymeric or oligomeric backbone; and(d) optionally 0-10% by weight of selected amino acid having a hydroxyl group.

Abstract: The invention relates to novel maleimide copolymers which, in addition to structural units derived from certain maleimide derivatives defined more precisely in the present patent application, comprises recurring structural units selected from the structural units of the formulae (Ia) and (Ib) ##STR1## where A is a direct single bond or a divalent group of the formula --O--;R.sub.0 and R.sub.1, independently of one another, are each a hydrogen atom, a C.sub.1 -C.sub.6 alkyl group or an aryl group having 6 to 14 ring carbon atoms;R.sub.2 is a radical of the formula ##STR2## in which R is a tert-alkyl radical having 4 to 19 carbon atoms,[T] is a C.sub.1 -C.sub.6 alkylene group or an arylene group having 6 to 14 ring carbon atoms, and p is the number 2, 3 or 4; orA together with R.sub.2 is a group of the formula ##STR3## and where, furthermore, R.sub.3 and R.sub.4, independently of one another, are each a hydrogen atom, a halogen atom, a C.sub.1 -C.sub.6 alkyl group or a C.sub.1 -C.sub.

Abstract: Positive photoresist compositions comprising, in an organic solvent, at leasta) one alkali-soluble resin,b) one photosensitive quinone diazide,c) one aromatic hydroxy compound of formula I ##STR1## wherein each R is --H, C.sub.1 -C.sub.4 alkyl, C.sub.1 -C.sub.4 alkoxy,--OCH.sub.2 C.sub.6 H.sub.5, --OC.sub.6 H.sub.5 or --COOC.sub.1 -C.sub.4 alkyl, and R.sub.1 and R.sub.2 are each independently of the other H, C.sub.1 -C.sub.4 alkyl,--C.sub.6 H.sub.5 or a cycloaliphatic 5- or 6-membered ring, a is an integer from 0 to 4, and m and n are each independently of the other 0, 1 or 2, which compound enhances the photosensitivity and/or the rate of development, and optionallyd) additional customary modifiers,are eminently suitable for making relief structures.