Abstract: Fabric conditioning articles comprising a water-insoluble particulate clay, fabric organic conditioning agents and a dispensing means especially adapted for use in automatic clothes dryers are described.

Abstract: Aluminum and tinplate steel cookware is coated with a finely divided fluorocarbon polymer dispersed in a silanol-containing organopolysiloxane resin to provide a release coating which may be cured at temperatures which do not interfere with the metallurgical properties of the aluminum or the tinplate steel cookware.

Abstract: A novel printing surface for recording indicia by an intensely colored iridescent interference color is provided by a white thin film of an iridescent pigment on a base web. The vivid color is developed by a dye which may be contained in the pigment coating itself, as finely divided particles not apparent to the eye, or the dye may be applied from an external source, as in a manifolding system. The pigment comprises an essentially transparent micaceous substrate having thereon at least one overcoating of an essentially transparent material having a refractive index which is greater than about 2.0, and may be mixed with up to 75% by weight of diluent material to form a low-cost recording composition.

Abstract: Mineral coating compositions for coating papers, the binder of which comprises a negatively-charged latex or an aqueous dispersion of an emulsion polymer, with or without an amylaceous binder, as the major portion thereof, and a relatively small amount of a water-soluble addition polymer having polymerized therein from 20% to 100%, preferably at least 40%, by weight of a monoethylenically unsaturated monomer having a primary, secondary, or tertiary amine group, such as an aminoalkyl acrylate, methacrylate, vinyl ether or vinyl sulfide, an N-aminoalkyl(meth)acrylamide, an N-acryloxyalkyl-oxazolidine or an N-acryloxyalkyl-tetrahydro-1,3-oxazine.

Abstract: An electrophotographic method comprises developing an electric latent image formed on a photosensitive member comprising a photoconductive material and containing a first color forming agent in a surface for forming a visible image with a charged toner particle containing a second color forming agent, and heating to cause a thermal color forming reaction therebetween resulting in formation of a colored fixed image on the photosensitive member.

Abstract: A heat-sensitive recording material which contains as color former at least one compound of the general formula ##STR1## wherein R.sub.1 and R.sub.2, which can be the same or different, represent hydrogen, alkyl of at most 12 carbon atoms which is unsubstituted or substituted by cyano or halogen, alkoxyalkyl of 2 to 8 carbon atoms, benzyl or phenyl, R.sub.3 represents hydrogen, halogen, nitro, alkyl of 1 to 4 carbon atoms or alkoxy of 1 to 4 carbon atoms, andZ represents alkenyl of at most 12 carbon atoms, unsubstituted or ring-substituted aralkyl or aralkenyl, or represents the radical of a reactive organic methylene compound or of a heterocyclic compound which does not contain active methylene groups.

Abstract: An improved terrazzo floor or wall construction of reduced thickness bonded and adhesively secured to an underlying sub-surface through the medium of an intermediate liquid impermeable sheet. A frangible terrazzo veneer is bonded to the liquid impermeable sheet and the sheet in turn is adhesively secured to the underlying sub-surface by a rubberized asphalt or the like elastomeric material to permit lateral movement of the sub-surface relative to the said facing veneer to obviate cracking of the veneer due to cracking or lateral movement of the sub-surface.

Abstract: The present invention relates to a process for producing a large architectural precast concrete panel for use in outside walls and applicable to the curtain wall technique of architecture, wherein a resinous substance and an inorganic material are placed in a mold, then a hydraulic cement composition is placed on the layer of above mixture. The polymerization of the resinous substance and the hydration of the cement composition are carried out in the mold simultaneously. A particularly preferred process employs the following critical conditions:1. The viscous methyl methacrylate syrup is one obtained by mixing about 100 parts by weight of viscous methyl methacrylate syrup with from about 0.5 to about 15 parts by weight of a radical polymerizable cross-linking monomer having .alpha., .beta.-unsaturated groups to obtain a resin solution;2. The particle size of the aggregates is between 0.6 and 15mm diameter;3.

Abstract: A panel is provided forming a water barrier and comprising two opposing spaced sheets having between said spaced sheets a sealant composition comprising bentonite; a water soluble dispersing agent selected from the group consisting of a water-soluble salt of acetic acid, a water-soluble salt of phosphoric acid, and a water-soluble salt of boric acid; and a water-soluble polymer selected from the group consisting of polyacrylic acid, water-soluble salts of polyacrylic acid, hydrolyzed polyacrylonitrile, polyvinyl acetate, polyvinyl acid and maleic anhydride, the amount of water-soluble polymer in said sealant composition being from 0.1% to 3.0%, by weight, and the amount of water-soluble dispersant in said sealant composition being from 0.1% to 3.0%, by weight, the weight ratio of water-soluble dispersant to water-soluble polymer being from 6:1-36. The panel is disposed against a foundation to act as a water barrier, shielding the foundation against water seepage.

Abstract: The desirable attributes of both a barrier coat and a face coat and elimination of a coating step are obtained in manufacture of a lithographic printing plate having a paper base and a lithographic printing surface thereon, wherein said surface comprises a coating of positively charged colloidal silica and insolubilized hydrophilic polymer, by including in said coating non-flocculating pigment and resinous binder that is cationic or nonionic or mixed cationic and nonionic.

Abstract: A sensitized sheet for a pressure sensitive copy system is obtained by coating the surface of a support with an acceptor composition comprising a particulate mixture comprising an organic acid substance selected from the group consisting of aromatic carboxylic acids and polyvalent metal salts thereof, and an organic high molecular compound. The above coating composition may further contain an inorganic solid particle such as oxides, hydroxides and carbonates of a polyvalent metal, and other mineral pigments. The coating procedure may be carried out with use of coating means mounted on the conventional paper machines.

Abstract: Composite electrical insulating material is protected by at least one outer polymeric layer which dissolves in the bonding or impregnating resin at elevated temperatures, permitting ready handling of the relatively fragile insulating material, and by reason of dissolution when installed, permitting the ready further impregnation of the assembled insulation.

Abstract: A fire resistant vermiculite composition board comprises, in percent by weight, from 40 to 90% heat expanded vermiculite particles; from 5 to 20% ceramic clay particles; from 10 to 30% hydrated cellulosic gel having a TAPPI drainage time of at least 900 seconds; from 1 to 20% defiberized wood; and from 1 to 20% starch. The vermiculite is in an incompletely expanded condition of a degree predetermined to permit its further expansion upon subsequent exposure to heat. This results in a corresponding expansion of the composition board of which it is a component when the board is exposed to fire, preventing the formation of cracks and insuring continued fire protecting coverage of the area across which the board is applied.

Abstract: Compositions containingA. fluoropolymer,B. alkali metal silicate,C. the salt of a polyamide acid,D. a coalescing agent,E. mica particles, mica particles coated with pigment, or metal flake, andF. a liquid carrierAre useful for priming metal, especially cookware, before topcoating it with a fluoropolymer enamel.

Abstract: A fusible metal film resistor comprising a substrate of an electrically insulating material and a resistive film formed on the substrate, which consists of nickel, 4 to 12 weight % of phosphorus and 0.05 to 10 weight % of at least one additive metal of iron, tin, manganese and bismuth, has a stable and small temperature coefficient of resistance suitable as a precision resistor at a normal load and disconnects easily and rapidly at abnormal overload due to a rapid decrease of resistance at a high temperature which leads to fusion of the film as a result of heat generated by increased current.

Abstract: Leader strip for motion picture films is described which is composed of a substrate of cellulose acetate or polyester, a gum-removing layer comprising an organic binder selected from the group consisting of cellulose esters, polyurethanes, polyacrylonitrile, copolymers of acrylonitrile and vinylidene chloride, and epoxy resins, a gum-shearing agent of finely divided polymeric particles, said agent being bonded by the organic binder to the substrate, said gum-shearing agent being a member selected from the group consisting of polyesters, polyamides, polyimides and polyolefins, said polymeric particles having a size less than about five mils.

Abstract: Ethylenically unsaturated monomeric esters in the presence of keto-dioxolane compounds are photocured upon exposure to a source of radiation.

Abstract: Rheologically stable aqueous dispersions of metal-modified novolak resin particles are prepared by grinding an aqueous mixture of the metal-modified novolak resin and anionic polymeric dispersing agent in the presence of a small amount of an organo-phosphorus compound containing two or more phosphonic acid or alkali metal phosphonate groups per molecule. Dispersions of the metal-modified resin particles so produced may be incorporated in color developing coating compositions containing a binder which may be applied and dried on a carrier paper to produce a pressure-sensitive record sheet.

Abstract: A compound mica sheet is prepared by bonding a mica sheet to a woven fabric through a powdered epoxy resin with curing agent. The mica sheet holds a cured thermosetting resin composition impregnated therein and has an uncured epoxy resin composition including a curing agent impregnated therein. When thermosetting resin is forcedly impregnated, through vacuum/pressure impregnation, into a coil wound with the compound mica sheet which is adapted for use in medium and high voltage electric apparatus, and then cured, an excellent insulated coil is obtained.

Abstract: Simulated traditional colonial sand-finished masonry is provided having a unique appearance simulating that of sand-finished burned clayware. The decorative qualities are excellent and can be made similar to those of architectural terra cotta and other burned clayware. The product of the invention comprises a substrate or panel which is coated with a cured plastic composition containing filler and having the desired appearance. The coated surface has a rough, rugged surface which is characteristic of sand finished masonry. The surface has the hardness of silica, is waterproof, decorative, and permanent; with the effect of clayware.The simulated product of the invention is easily and inexpensively constructed. In accordance with one embodiment of the invention, a wall construction is provided of masonry blocks coated with a cured plastic-sand composition having suitable pigments to produce a sand finished masonry appearance.

Abstract: Aqueous fluorocarbon polymer coating compositions which contain colloidal silica and mica particles are provided. These compositions are useful for coating substrates, especially metallic cookware and bakeware to give non-stick finishes having improved resistance degradation by hot oil.

Abstract: Masonry blocks are provided with a cured resinous coating of an ethylenically-unsaturated polyester. The polyhydric alcohol in the ester is primarily neopentyl glycol to provide water resistance. The acid in the ester is isophthalic acid with 10 to 33% maleic anhydride, based on the total weight of the polyester. If the upper limit on the maleic anhydride is exceeded, stain resistance is lost. Triethyl phosphate is preferably incorporated to provide fire resistance while eliminating flame and smoke problems when employing methyl methacrylate as a polymerizable solvent. The sand-polyester compositions of the invention can also be formed as cast articles without a masonry unit backing.

Abstract: A neutralizing layer containing particulate diatomaceous earth, exploded volcanic rock or hydrous calcium silicate is described for use in color diffusion transfer film units, dye image-receiving elements and cover sheets.

Abstract: Calcium silicate monohydrate (2CaO.sup.. SiO.sub.2.sup.. H.sub.2 O) can be produced in a coating which has been formed by a coating material containing silica sol alone or silica sol and other additives such as aggregate, viscosity increasing agent, etc. by subjecting the coating to a chemical treatment such as heat-treatment, ultra-violet ray irradiation treatment, etc. in the presence of water and a calcium compound which may be present either in the coating material, or in the treating liquid, or in an object to be coated. The film which contains the calcium silicate monohydrate produced by said chemical treatment has remarkably high hardness and is excellent in water-resistance, water-imperviousness, weather-resistance, and heat-resistance.

Abstract: A flexible, non-tacky tape, for electrical conductors used in high voltage devices, comprises at least one layer of a micaceous material impregnated with a resinous admixture consisting essentially of epoxy resin and zinc 2-ethyl hexonate as a latent catalyst.

Abstract: Irrigation of a body of soil or other plant-growing medium appropriate for growing plants in hothouses, florist shops and the like is controlled by interposing between the body of soil, which may be in a container having a water-permeable bottom, and a body of water-receptive material to which water is supplied, preferably at a controlled rate, a capillary sheet of impermeable and preferably opaque plastic having a multiplicity of regularly spaced capillary openings therein through which water migrates in travelling from the water-receptive material into the body of soil. The water-receptive material may comprise and preferably consists of a silica sand catalytic plastic sheet having on one side thereof a coating of silica sand particles interspersed by a network of capillary spaces that are conducive to lateral spread of water supplied thereto, said silica sand catalytic sheet also being beneficial in installations wherein a body of soil is in direct contact therewith.

Abstract: A flexible mica sheet is made by: (A) mixing solid and liquid epoxide resin in a dual solvent system, (B) adding an organo-titanate catalyst, and mixing to form a homogeneous admixture, (C) applying the admixture to a sheet material comprising mica, so that organo-titanate contacts the mica, causing organo-titanate to act as a latent catalyst, and (D) removing solvent, to form a flexible B staged epoxide resin containing an amount of organo-titanate effective to cure the epoxide in the sheet material heating.

Abstract: Pressure-sensitive copying material containing included in its Color-reactant system a mixture of at least two color formers, wherein at least one color former is a leuco methylene dyestuff of the formula ##EQU1## wherein Y represents an amino-substituted phenyl residue of the formula ##SPC1##Or an indolyl residue of the formula ##SPC2##Wherein R.sub.1 and R.sub.2, independently of the other represent hydrogen, alkyl with 1 to 12 carbon atoms, alkoxyalkyl with 2 to 8 carbon atoms, benzyl or phenyl, R.sub.3 is hydrogen, halogen, nitro, alkyl having 1 to 4 carbon atoms or alkoxy having 1 to 4 carbon atoms, X.sub.1 represents hydrogen, alkyl with 1 to 12 carbon atoms, alkenyl with at most 12 carbon atoms or benzyl, X.sub.

Abstract: A high temperature insulating structure adapted for use in a vibratile structure such as a manifold reactor or the like for automobiles, said structure consisting of two walls defining therebetween a space filled with heat insulating material, said material being formed by firing a slurry prepared by mixing a water solution of a phosphate compound and a heat resisting material consisting of 20 - 70 % by weight of silicon dioxide, 15 - 80 % by weight of aluminium oxide, and 0 - 30 % by weight of magnesium oxide.

Abstract: Fabric conditioning compositions and articles comprising certain water-insoluble particulate clays and dispensing means especially adapted for use in automatic clothes dryers are described.

Abstract: A mica based electrical insulation for high temperature applications comprising reconstituted micaceous sheets impregnated with an impregnant of the family of poly (carborane siloxane) containing carborane moieties linked by siloxy groups at approximately 2-25% by weight of impregnant based on total weight of impregnated mica. The method for producing the mica based electrical insulation comprises the steps of solubilizing a poly (carborane siloxane) in a suitable solvent at a loading such as to produce a final insulation composite containing the desired weight of impregnant, placing a mica sheet of desired thickness on a suitable support, impregnating the supported mica sheet with the solution so as to achieve complete wetting, and curing the impregnated mica sheet for a time interval and at a temperature sufficient to effect cross-linking of the polymer.

Abstract: The invention relates to copying and recording materials such as pressure-sensitive and/or heat-sensitive material, which contains as color former specific naphthofuranes.

Abstract: An electrically insulating prepreg which comprises a resin composition of an alicyclic epoxy compound prepared by the expoxidation of an alkadiene alcohol ester of an alicyclic polybasic carboxylic acid, a latent curing agent, and a solid substrate, wherein said resin composition, once it has been applied to the substrate, is in the B-stage cured state and is thereby acetone soluble, thermoplastic and nontacky.

Abstract: Benzyl aryl ethers are useful solvents for chromogenic materials in preparing pressure-sensitive record material wherein a colorless or substantially colorless chromogen is reacted in the presence of a benzyl aryl ether solvent with an acidic sensitizing material to form a colored mark in a pattern determined by the application of localized pressure to the record material. The benzyl aryl ether solvents are heat stable and give particularly fast color development on phenolic resin coated papers.

Abstract: Record material useful for carbonless copying systems and the like and adapted to develop distinctive coloration on contact with a preferably colorless dye precursor reactive in an electron donor-acceptor color-producing mechanism, characterized by a thin, uniform surface coating containing smectite clay having its molecular structure chemically modified to impart substantially Newtonian viscosity behavior to aqueous suspensions thereof. On examination by X-ray diffraction, the chemically modified clay preferably exhibits a discernible peak at a characteristic angle of diffraction. Chemical modification is preferably achieved by contacting the clay with the acid, such as sulfuric acid, for a time sufficient to irreversibly alter the clay structure. Such clay coatings can be applied by the usual coating techniques and produce dye images of substantially improved resistance to fading by light and ordinary atmosphere.

Abstract: A copy sheet that is capable of being printed by a reaction which requires the presence of three components. One of these components is carried by a printing master and another of these components is supplied to the copy sheet immediately prior to the printing operation. The third component is carried by the copy sheet in the form of a layer provided on one side of a carrier sheet forming part of the copy sheet. The printing master is placed on a rotating drum and the layer on the carrier sheet is moistened to supply the still missing component and is thereafter urged into contact with the printing master by means of a counter-pressure roller. If, in making a series of prints on a number of copy sheets, one copy sheet in the sequence should fail to be conveyed to the printing location, the rotating printing master will contact the counter-pressure roller and apply thereto the component carried thereby.

Abstract: A method for imparting water repellency to construction materials which comprises treating said materials with a solution containing alkali metal organosiliconates of which at least 10 percent of the alkali metal organosiliconates are alkali metal propylsiliconates.

Abstract: A reinforced concrete construction formed of a plurality of alternate, integrally bonded layers of epoxy resin-containing concrete and fiber-reinforced epoxy resin. The epoxy resin-containing concrete is a hardened mixture of hydraulic cement, aggregate, water in an amount sufficient to harden the cement, and a minor proportion of epoxy resin. Optionally, short pieces of epoxy resin coated glass fiber can be dispersed within the epoxy resin-containing concrete. The construction can be formed into a relatively thin-walled, laminated article of any desired size and configuration. Also disclosed is a method for fabricating the constructions of this invention.

Abstract: Shaped refractory articles, especially turbine casing liners, are formed of a refractory fibre/watersoluble binder composition, the hardness, strength and density of which do not vary across the bulk composition.

Abstract: A pressure-sensitive copying paper comprising an adsorbent solid acid and a microencapsulated color former capable of forming a distinct color when reacted with the adsorbent acid coated on the same or a different surface of a support or supports, the microencapsulated color former being at least one lactone compound of a pyridine-carboxylic acid represented by the formula ##SPC1##Or a mixture thereof, wherein R.sub.1, R.sub.2, R.sub.3, R.sub.4 and A are as defined hereinafter, is disclosed.

Abstract: The difficulties in using clay minerals as absorbents in articles such as diapers, floor mats, utility wiping cloths, etc. is overcome by flocculating the clay into granular aggregates. The dry aggregates are dispersed into a flexible fibrous support to prepare the absorbent products. The aggregates, additionally, show enhanced water absorbing properties in many instances.

Abstract: Heat-sensitive porous substrates such as wood, plywood, plyboard, particleboard, fiberboard, cardboard, paper, fiber cement, asbestos cement, concrete and natural stone are coated with a synthetic resin by mixing an aqueous dispersion of 100 parts by weight of a saturated synthetic resin with 2 to 40 parts by weight of an organic liquid consisting of a mixture of 70 to 10 percent by weight of at least one mono ethylenically unsaturated compound having a boiling point of less than 190.degree.C. and 30 to 90 percent by weight of at least one ethylenically unsaturated compound having a boiling point of at least 190.degree.C. in order to swell the resin particles, applying the mixture to the substrate to form a film thereon and hardening the film with UV radiation or with electron radiation to form a hard smooth surface coating on the substrate.