Abstract: Aluminum flake can be dispersed advantageously in a mixture of ethylene glycol and ethylene glycol monobutyl ether for use in solvent-based dispersions of poly(arylene sulfide) and optionally fluorocarbon.

Abstract: Water-borne reaction products of (a) carboxyl-functional polymers; (b) polyepoxides; and (c) tertiary amines are blended with (d) carboxyl-functional polymers having an acid number dissimilar to that of (a). The resulting products are useful as film-forming components of coating compositions which can be spray-, flow-, dip-, roller-, or electro-coated and are especially useful for spray coating the inside of two-piece tin-plated steel cans of beverages and food. The coating compositions are useful as such or can be crosslinked with crosslinking agents such as a nitrogen resin.

Abstract: Aqueous dispersions of fluorocarbon polymers in combination with the water-borne reaction product of (a) carboxyl-functional polymers, (b) polyepoxides and (c) tertiary amines are provided. Such dispersions can be applied to a variety of substrates by either conventional coating techniques or electrodeposition, and provide coatings that exhibit excellent release properties and high lubricity.

Abstract: Heat-stable coatings on cookware can be made stain-resistant by including a pigmented brown intermediate layer and a clear topcoat layer containing mica or coated mica platelets for sparkle. Such coatings are particularly suitable for electrical cookware.

Abstract: Articles coated with multilayers of a composition of polytetrafluoroethylene plus a specified proportion of copolymers of perfluorinated polyvinyl ether and tetrafluoroethylene, to which is optionally added a heat stable polymer with a glass-transition temperature greater than or equal to 130.degree. C., are found to have improved durability. The proportion of the copolymer in each layer varies such that there is a maximum amount in the bottom layer with decreasing proportions in the other layer or layers.

Abstract: A thermosetting acrylic enamel composition blended with pentaerythritol tetrabenzoate as an antiplasticizer gives superior appearance, hardness, and resistance to acid and solvents.

Abstract: A cathodic electrocoating composition containing a polyhydroxyamine dispersant and an epoxy reacted with an entity such as a fatty amine and optionally a crosslinker polymer.

Abstract: An acrylic polyamine copolymer with amine and hydroxy functionality. The copolymer can be formulated with auxiliary resins and optional crosslinkers to make a nearly-neutral pH cathodic dispersion and the formulations can be used in cathodic electrodeposition, giving good cure response at 150.degree.-175.degree. C.

Abstract: A cationic electrocoating composition containing a polyhydroxyamine and acrylic or methacrylic polymers and optionally a crosslinker resin.

Abstract: A cationic electrocoating composition containing a polyhydroxyamine and polyesters or alkyds and optionally a crosslinker resin.

Abstract: A cationic electrocoating composition containing a polyhydroxyamine and polybutadiene and optionally a crosslinker resin.

Abstract: A coating composition comprising a dispersion of an epoxy resin, a nitrogen resin crosslinker such as a melamine formaldehyde, a particulate fluorocarbon such as PTFE, and citric acid can be applied to substrates such as polysulfones and cured at low temperatures on the order of 107.degree. C. The resulting coating is especially useful as a barrier to seal the surface of the substrate and to improve abrasion resistance.

Abstract: A non-stick coated steel article, such as cookware, has a coating of a ceramic frit in two parts, first a non-porous layer, then a porous layer, overlaid with a fluorocarbon primer and, optionally, a fluorocarbon topcoat.

Abstract: A coating composition consisting essentially of certain heat-stable polymers, colorants, antioxidant, and liquid carrier useful for coating an article to produce a finish which is capable of maintaining its hue and can have a decorative pattern produced within it. The antioxidant is phosphoric acid which has been neutralized with an excess of ammonia or an organic base, preferably a volatile amine, to give a pH in the coating composition of at least about 8.5.

Abstract: A coating composition of poly(arylene sulfide), fluoropolymer and aluminum flake, in a liquid carrier which is either aqueous or organic, provides durable coatings especially useful in bakeware.

Abstract: 6. In a key pulse system for generating key pulses of definite length and highly irregular magnitude with intervening spaces, cyclically operating devices for generating groups of irregular sequences of pulses at a rate much higher than the rate of occurrence of said key pulses, each such group of pulses existing for the length of one of said spaces, and means to determine the magnitude of the next key pulse from the last pulse in the group of pulses occupying the preceding space.

Abstract: Certain fluoropolymers, when chemically modified by reacting them with sulfur or phosphorus containing compounds, become hydrophilic materials useful for making ion-exchange membranes, especially diaphragms for electrolytic cells, particularly chlor-alkali cells used in the production of chlorine, hydrogen and sodium hydroxide from brine.

Abstract: 1. In a system for transmitting a quantized signal having a definite maximum value, a reentry circuit comprising a cyclically operating electronic stepper having a cycle length in step-positions corresponding to the number of steps represented by said maximum value, and successively stepping in response to step-signal input thereto, each position of said stepper including means determinative of the generation of a respective one of three-or-more valued signals, and said circuit including means for, in effect, cancelling, once or more, from the output of said circuit a preassigned whole number of said signal steps whenever the output signal value would exceed said maximum value, and means for converting a group of different step-valued signals into a series of step-pulses to step said stepper around from an initial position through the number of steps represented by said series of pulses.13.

Abstract: 1. In a secret telephone transmission system in which speech waves are analyzed into component speech-defining low frequency signals which are coded in stepped wave form, a group of frequency modulators of the same type and same average frequency, means to impress said signals of stepped wave form on the respective frequency modulators to produce a plurality of frequency modulated waves of the same average frequency, and means to translate said last waves into frequency modulated waves accurately positioned at different frequency levels comprising a separate amplitude modulator for shifting the frequency of each such frequency modulated wave, and means to supply to said amplitude modulators carrier waves of accurately spaced frequency comprising a source of base frequency waves of highly constant frequency and a harmonic generator for fixing the frequencies of said supplied carrier waves.