Abstract: Coated architectural glass system having a transparent substrate with a surface and a multi-layer coating disposed on the surface. The multi-layer coating comprises first and second metal layers and a dielectric layer disposed between the first and second metal layers. The first and second metal layers have a thickness ratio so that the transmission of the coating can be changed independent of its reflection properties, by varying the thickness of the metal layers while maintaining the ratio constant. The dielectric has a thickness such that the reflection from the coating is not strongly colored in the region of 400 millimicrons to approximately 700 millimicrons. In the method, the transmission of the coating can be changed merely by varying the thickness of the first and second metal layers in accordance with a thickness ratio.

Abstract: Surfaces of a perforated mask made of iron are allowed to contact with an acidic aqueous solution of antimony trichloride, e.g., a hydrochloric acid solution to form a thin film of metallic antimony on said surfaces. A protective coating of a phosphate is allowed to be deposited onto said thin film. Thereafter, said surfaces is heated in an oxygen atmosphere to produce a grayish black coating having an excellent thermal emission power. The perforated mask thus treated has no permanent deformation like wrinkles produced at a perforated sheet member and is uniform in color.

Abstract: Leather is coated on at least one face with a curable composition comprisingI. a polymercaptan containing at least two mercaptan groups per average molecule,Ii. a polyene having, per average molecule, at least two ethylenic double bonds, each .beta. to an atom of nitrogen, sulfur, or oxygen, the sum of the mercaptan groups in the polymercaptan and of such ethylenic double bonds in the polyene being more than 4, and the composition is then cured on the leather with or without the application of heat, optionally in the presence of a Bronsted acid, a Bronsted base, or a source of free radicals, as a curing accelerator.In this manner the leather is provided with a wearing or decorative surface having high gloss and smoothness, enhanced ease of cleaning, and decreased permeability to liquids.

Abstract: A process for finishing keratinous material, especially rendering it shrink-resistant or imparting to it durably pressed effects, comprises1. treating the material with a polythiol ester of the formula ##EQU1## WHERE R.sup.1 represents an aliphatic or araliphatic hydrocarbon radical of at least 2 carbon atoms, which may contain not more than one ether oxygen atom,R.sup.2 represents a hydrocarbon radical,p is an integer of from 2 to 6,q is zero or a positive integer of at most 3, such that (p + q) is at most 6, andr and s each represent zero or 1 but are not the same, and2. curing the polythiol ester on the material by means of a polyene containing, per average molecule, at least two ethylenic double bonds each .beta. to an oxygen, nitrogen, or sulfur atom, the sum of such ethylenic double bonds in the polyene and of the mercaptan groups in the polythiol ester being more than 4 and the combined weight of the polyene and the polythiol ester being from 0.5 to 15% by weight of the keratinous material treated.

Abstract: A surface coating for vehicle test bed rollers which consists of ceramic, stainless steel, and molybdenum particles substantially blended together to form a wear resistant, composite core within said surface coating.

Abstract: An improved polyethylene terephthalate tire yarn is prepared by applying to the yarn a finish composition consisting essentially of a polyalkylene glycol compound having the formulaR--(O--R.sub.1 --O-- R.sub.2 ).sub.n --OHin which R.sub.1 and R.sub.2 are the same or different lower alkylene units such as ethylene, propylene and so forth up to 5 carbon atoms, R is an alkyl group containing 1 to 8 carbon atoms, and n has a value to produce a molecular weight of at least about 300. Preferably, the yarn is thereafter heated for 10 to 160 seconds at a temperature of from about 215.degree. to 230.degree.C. This method of finishing the tire yarn results in an improved compression-extension durability of the fiber in rubber.

Abstract: An aqueous dispersion of copolymers are used as binders for the production of optionally dry-cleanable nonwoven materials. The copolymers consist of copolymerized units of 1 - 2.5% by weight of N-methylol(meth)acrylamide, 1 - 2.5% by weight of (meth)acrylamide, 0.5 - 3% by weight of .alpha.,.beta.-monoolefinically unsaturated di- or tricarboxylic acids with 4 to 6 carbon atoms and 89.5 - 97.5% by weight of (meth)-acrylic acid esters having 1 - 18 carbon atoms in the alcohol component.

Abstract: Aluminum coatings to reduce corrosion of steels and the like, are very effective when applied by pack diffusion below 1000.degree.F using a retort cup not over fifteen inches high, with anhydrous or hydrated energizer in a layer on top of the pack and out of contact with the workpieces. Such diffusion coatings are more uniform than corresponding coatings made with the pack energizer in a set of porous containers imbedded in the pack, even when using a retort not over 15 inches high and the porous containers are grouped together separately from all the workpieces. Keeping workpieces away from above and below the porous containers helps. Aluminum diffusion can also be effected from continuous coatings of leafing-type aluminum particles and such leafing coatings in very thin layers are more effective than coatings of non-leafing aluminum, with or without diffusion.

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: Compositions containing C.sub.21 dicarboxylic acid and nonionics in a weight ratio of 20:1 to 1:20, respectively, are provided which are uniquely effective as soluble surfactant systems for liquid alkaline cleaners.

Abstract: Carpets are backed with a composition comprisingI. a polymercaptan containing at least two mercatpan groups per average molecule,Ii. a polyene having, per average molecule, at least two ethylenic double bonds each .beta. to an atom of nitrogen, sulfur, or oxygen, the sum of the mercaptan groups in the polymercaptan and of such ethylenic double bonds in the polyene being more than 4, and the composition is then cured on the carpet with or without the application of heat, optionally in the presence of a Bronsted acid, a Bronsted base, or a source of free radicals, as a curing accelerator. Such carpet backings cure at relatively low temperatures and so may be used in conjunction with a wide range of fibers and dyestuffs: the backings also retain their flexibility for prolonged periods.

Abstract: An acidic cleaning composition comprising at least 0.1 weight percent of pyrrolidone-carboxylic acid or derivatives thereof having the following formula ##EQU1## wherein R.sub.1, R.sub.2 and R.sub.3 are hydrogen, --COOH, --CH.sub.3, --C.sub.2 H.sub.5 or --OH with the proviso that at least one of R.sub.1, R.sub.2 and R.sub.3 is --COOH, and R.sub.4 is hydrogen, --CH.sub.3 or --C.sub.2 H.sub.5.

Abstract: Knitted cotton fabrics in tubular form are impregnated to 20 to 35% wet add-on of crosslinking agent by any of several techniques including sprinkling, spraying, printing, or slop padding the solution of crosslinking agent to the outer surfaces of the fabric tube, or transferring the solution of crosslinking agent from impregnated material to the outer surfaces of the fabric tube, followed by a mechanical agitation step wherein the impregnated tubes are mechanically agitated at elevated temperatures under closed conditions, thereby eliminating agent migration toward fabric surfaces during drying of the cotton containing knitted fabrics in chemical treatments for smooth-drying properties and dimensional stabilization.