Abstract: Organopolysiloxane compositions curable into elastomeric state even in the absence of atmospheric moisture, notably in a confined environment, and well adopted for the production of seals, include a ketiminoxy crosslinking agent and a natural or synthetic hydrogel hardening agent.

Abstract: Organopolysiloxane compositions curable into elastomeric state even in the absence of atmospheric moisture, notably in a confined environment, and well adopted for the production of seals, include an acyloxy crosslinking agent and a natural or synthetic hydrogel hardening agent.

Abstract: A polymer granulate whose particles consist of a core component and a coating component can be prepared by mixing a granular polymer with a pulverulent coating agent. The core component is made of a water-soluble polymer, in particular a polyvinyl alcohol. The coating component is a water-soluble or water-insoluble substance which is applied to the water-moistened particles of the core component. The particles of the polymer granulate have diameters within the range from 0.6 to 6 mm. The granulate has particularly good freeflowing properties; it is especially suitable for preparing adhesives.

Abstract: Electrically conductive, pressure sensitive adhesive composite formulations comprising adhesive polymers, electrically conductive quaternary ammonium polymers, electrically conductive water soluble and water swellable polymeric fillers for imparting cohesiveness to said composite, and additionally, chemical agents that retard oxidative or microbial degradation of the composite. The composite formulations yield a flexible and extensible material that is suitable as an adhesive for biological electrodes, particularly transcutaneous electrical nerve stimulation electrodes.

Abstract: A particulate water-soluble polymer is dispersed in a liquid medium comprised of low molecular weight polyethylene glycol, water and high molecular weight polyethylene glycol in amounts sufficient to impart stability to the dispersion. The dispersion is used in a process for dispersing the water-soluble polymer into aqueous solutions, such as latex paints, comprising preparing the dispersion and feeding the dispersion into the aqueous solution. The dispersion has excellent dispersion stability and fluidity, and is easier to handle and has a higher dissolution rate than the dry powder (particulate) form of the water-soluble polymer.

Abstract: A water based antistatic coating composition comprising:(a) at least one water soluble antistatic agent which is acceptable for food packaging polymer films;(b) at least one water soluble or water dispersible film-forming polymer; and,(c) a solution or dispersion-forming amount of water.When applied to a polymer film substrate, the foregoing antistatic coating composition forms, upon drying, and adherent antistatic coating.

Abstract: A water soluble or swellable polymer gel is dispersed into a liquid phase to form a fluid composition and is worked while in that composition. The liquid phase is an aqueous solution of an equilibrating agent that substantially prevents aggregation of the particles or dissolution of the polymer during the working. The working may be, for instance, milling, extraction of impurities, extraction of water, transportation or chemical modification. Preferred equilibrating agents are sodium polyacrylate and polydiallyl dimethyl ammonium chloride.

Abstract: There is disclosed a water-swelling composition which comprises polyolefinpolyol-ethylene oxide addition product, a water-absorbing polymer and an isocyanate. The composition contains a water-absorbing polymer in an amount of from 5 to 200 parts by weight and an isocyanate in an amount of from 5 to 50 parts by weight, per 100 parts by weight of a polyolefinpolyol-ethylene oxide addition product. The composition can be used as a sealant in places which must be water or moisture tight in vehicles, buildings and various machines since it is capable of speedily swelling when contacted with water.

Abstract: A conductive film-forming composition for use in the manufacture of electrostatic recording paper is provided. This composition comprises a copolymer of a diallylammonium halide derivative with a N-vinylacetamide derivative as an essential component. The conductive paper manufactured by coating or impregnating a substrate paper with this composition is of remarkably high practical value in terms of electrical conductivity, hardness, surface tackiness and solvent resistance.

Abstract: The present invention relates to a liquid suspension of a high molecular weight, water-soluble polymer or water-soluble salt prepared by admixing and water-soluble polymer with a hydrocarbon carrier fluid and a suspending agent comprising an aqueous emulsion of a copolymer comprising a water-insoluble and substantially hydrocarbon-insoluble polymer consisting of particles having a dry weight average particle size of below 10 .mu.m and which is formed from monomers of which 80% to 100% are hydrophobic, 30 to 100% are polar and 0% to 20% are hydrophilic. More particularly, the copolymer comprises from about 80% to about 100% C.sub.1-30 alkyl methacrylate monomers and from about 0% to about 20% hydrophilic monomers. Preferably, the copolymer comprises 90% to 100% 2-ethylhexylacrylate and from about 0.5% to about 10% acrylic acid. The liquid suspension is capable of supporting about 5 pounds of water-soluble polymer per gallon of suspension.

Abstract: A water repellent composition comprising an emulsion prepared by emulsifying in water (A) a wax having a melting point of from 40.degree. to 90.degree. C. and (B) an olefin-maleic anhydride derivative in the presence of (C) a water-soluble alkaline compound and/or a nonionic emulsifier.

Abstract: An adhesive solution, especially for wallpapers is prepared from:(1) a from 2 to 20%, by weight, dispersion of cellulose ether in a C.sub.1 -C.sub.4 aliphatic alcohol; and(2) optionally(a) a from 0.05 to 2.0%, by weight, aqueous solution of methyl cellulose ether and/or hydroxyalkyl methyl cellulose ether which is soluble as well as in water as a mixture of methanol and methylene chloride and which is swellable in methanol; or(b) a from 2 to 40%, by weight, aqueous solution of a hydrolyzated of a copolymer of styrene and acrylonitrile, which is also soluble in methanol,an alcohol-to-water weight ratio of from 0.5:1 to 3.5:1 having to be maintained in the adhesive solution.

Abstract: Aqueous redispersible powders which contain a water-soluble polymer and at least one organic silicon compound, in which at least 50 percent by weight of the organic silicon compound(s) used to prepare these powders are liquid or solid at room temperature at 1,020 hPa (abs.), have a boiling point of at least 150.degree. C. at 1,020 hPa (abs.), and contain an average of not more than 1.8 SiC-bonded organic radicals per silicon atom, and have at least one hydrogen atom bonded directly to silicon per molecule, or at least one hydroxy group bonded to silicon per molecule, or at least one hydrocarbon radical bonded to silicon via oxygen per molecule which may be substituted by an alkoxy group, or a mixture of at least two such condensable substituents in which the organic silicon compound(s) are used in an amount of at least 30 percent by weight, based on the total weight of the powder (calculated as anhydrous powder).

Abstract: An additive for cementitious compositions is provided comprised of a cellulose ether, a starch ether and a polyacrylamide. This additive, when added to cementitious compositions, improves the workability of the resulting cementitious composition when used as a tile grout or mortar.

Abstract: Polyvinyl alcohol based sizing solution containing a small amount of low ethylene oxide adduct of branched alcohol provides superior operability during sizing and weaving, and yields fabric that exhibits improved finishing performance.

Abstract: An aqueous fabric treating composition or sizing has been developed for application on laundered fabrics which provides excellent sizing together with oil and water repellency and improved soil release during laundering. The composition comprises a water soluble sizing, hybrid copolymer containing water-solvatable polar groups and fluoroaliphatic groups, and water. A method of treating fabrics and treated fabrics are also disclosed.

Abstract: Flame spraying compositions exhibiting improved adherence to a variety of substrates are disclosed, as well as articles coated with such compositions. The spraying compositions comprise a granulated mixture of two components: (1) a powdery material selected from the group consisting of powdered metals, heat resistant ceramics, cermets, and resins; and, (2) a ceramic needle fiber such as whisker crystals of SiC or Si.sub.3 N.sub.4. Articles coated with thin films of these coatings exhibit increased thermal and corrosion resistance.

Abstract: Water-swellable elastomer composition consisting essentially of a homogeneous mixture of an elastomer, a water-absorbent resin and a water-soluble resin. Said composition exhibits a high degree of swelling and a high swelling rate when it is soaked in water. Also, said composition retains swellability even when it is put in contact with water for a long period of time.

Abstract: A heterogeneous, pressure-sensitive, electrically conductive adhesive for disposable biomedical electrodes. The adhesive consists of two phases: a viscoelastic polymeric adhesive phase and an electrically conductive aqueous phase containing a water receptive polymer, a humectant, and an electrolyte. Both phases are intimately interdispersed and the adhesive is applied as a relatively thin film on a supporting substrate. The adhesive is characterized in that it establishes a physical equilibrium with the ambient system so that varying concentrations of moisture in the atmosphere are accommodated and tolerated by the adhesive without loss of viscoelastic and adhesion capabilities and without impairment of electrical conductivity values even under conditions of both high and of low relative humidity.

Abstract: A stencil printing ink is described, comprising 0.5 to 20% by weight pigment, 5 to 30% by weight extender pigment, 0.5 to 5% by weight water-soluble polymer (the viscosity of its 10% aqueous solution is at least 40 cps), 3 to 15% by weight (calculated as solids) o/w type resin emulsion, 5 to 20% by weight polyhydric alcohol and water. This ink can produce printed images without being affected by printing conditions such as temperature and application pressure. Thus, it is suitably used in stencil printing for non-professional or unskilled people.

Abstract: An improved denture adhesive containing an adhesive polymeric fraction comprising an admixture of mixed, partial salts of lower alkyl vinyl ether-maleic anhydride-type copolymers with sodium carboxymethylcellulose in a vehicle comprising mineral oil thickened with polyethylene having a molecular weight of from about 1000 to 21,000.

Abstract: Medical grade pressure sensitive adhesive compositions comprising a homogeneous mixture of one or more polyisobutylenes or blends of one or more polyisobutylenes and butyl rubber, one or more styrene radial or block type copolymers, mineral oil, one or more water soluble hydrocolloid gums, and a tackifier. One or more water swellable cohesive strengthening agents, an antioxidant, and various other optional ingredients may be included within the adhesive composition.

Abstract: A denture fixative composition contains as the active fixative a partially neutralized and crosslinked polyacrylic acid or a precursor combination of the polyacrylic acid, neutralizing agent(s) and crosslinking agent(s) which is adapted to form the active fixative, and at least one hydrophilic polymer, preferably, sodium carboxymethyl cellulose, hydroxypropyl guar or sodium alginate.

Abstract: An improved denture adhesive containing sodium carboxymethylcellulose (CMC) as the sole adhesive component in a hydrophilic vehicle comprising certain polyethylene glycols (PEG) and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.

Abstract: Denture fixative compositions contain denture fixative excipients and as the denture fixative, a water soluble partially neutralized alkyl vinyl ether-maleic acid or anhydride copolymer, optionally partly crosslinked, and at least one hydrophilic polymer, preferably sodium carboxymethylcellulose, polyethylene oxide or hydroxypropyl guar.

Abstract: An improved denture adhesive containing an adhesive polymeric fraction comprising sodium carboxymethylcellulose and poly(ethylene oxide) in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.

Abstract: A cross-linking system is shown for use in a water based well fracturing fluid which includes a mixture of a titanate constituent and a boron constituent. The mixture is effective to produce a cross-linked water based fracturing fluid which is shear stable at normal fracturing pump rates and which is temperature stable at elevated well temperatures.

Abstract: An improved denture adhesive containing an adhesive polymeric fraction consisting essentially of an admixture of mixed, partial salts of lower alkyl vinyl ether-maleic adhydride-type copolymers with either of sodium carboxymethylcellulose or poly(ethylene oxide) homopolymer or both in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.

Abstract: The present invention is directed to a process for the preparation of finely dispersed, easily spreadable, aqueous polyurethane reactive coating compositions suitable for coating textile sheet products, artificial leather or leather by the direct or transfer coating process by(i) forming an aqueous dispersion having a solids content of about 20-69 wt. % of blocked isocyanate prepolymers in the presence of from about 0.05-5% by weight of emulsifiers,(ii) adding during or after formation of the dispersion about 0.1 to 2.5% by weight of water soluble thickeners based on long chain polyethylene oxides, salts of poly(meth)acrylic acids or salts of carboxy methyl cellulose, up to 100% by weight of aqueous polymer solutions and/or polymer dispersions and optionally levelling agents, pigments, fillers or stabilizers and(iii) forming a coating composition having a viscosity of from about 3000 to 22,000 mPa.s/25.degree. C.

Abstract: A pressure-sensitive adhesive having the capacity to absorb at least about 7 percent of its own weight in water and having a desirable combination of plasticity and wet-stick characteristics, as well as good dry skin adhesion. An adhesive composition particularly suitable for use as a stoma seal adhesive comprises (I) from about 30 to about 80 parts by weight each of (a) a pressure-sensitive adhesive component comprising a synthetic or natural gum-like substance and (b) a moisture absorbing component comprising a synthetic carbohydrate or natural water soluble or swellable hydrocolloid together with (II) from about 2 percent to about 20 percent by weight silica, based on the total weight of the adhesive composition.

Abstract: Aqueous dispersions containing a mixture of 20 to 80% by weight of a latex of a copolymer A of butadiene, styrene and at least one unsaturated carboxylic acid, and 80 to 20% by weight of latex of a copolymer B of styrene, an alkyl acrylate and, if appropriate, at least one unsaturated carboxylic acid. The dispersions can be used as binders for the preparation of adhesive compositions suitable for joining or gluing two or more elements, and particularly suitable when at least one of the elements consists of a material which is difficult to glue, such as polyvinyl chloride.

Abstract: A water-in-oil emulsion polish composition suitable for treating natural and synthetic leather articles comprises a wax mixture, a film-forming agent, a film-modifying agent, a nonionic emulsifying agent, a dispersing agent, a thickening agent, a solvent, and a preservatives in water. The composition is substantially self-polishing and provides a durable natural-looking high gloss.

Abstract: Method and composition for protecting, maintaining and repairing paved surfaces utilizing a workable fiber-containing asphalt and/or latex emulsion in combination with an active amount of a water-soluble polymer material differing in ionic characteristics from the emulsion or emulsifier component thereof.

Abstract: An aqueous polymer dispersion is prepared by polymerizing at least two different olefinically unsaturated monomers in an aqueous medium at a temperature of 30.degree. to 100.degree. C. and in the presence of a polymerization initiator which forms free radicals, an emulsifier, a protective colloid and, if appropriate, a chain regulator. If carboxymethylcellulose having a specific degree of substitution is used as the protective colloid, a dispersion which is particularly suitable as a binder for a gloss paint having a gel structure is obtained.

Abstract: A method of rendering a water soluble anionic polymer more dispersible in water. The method is carried out by mixing in a polar liquid the water soluble anionic polymers and cationic or amphoteric polymers to form a mixture. When the cationic or amphoteric polymer is added to the anionic polymer in an amount of from about 25 to about 75 percent by weight of the anionic polymer, the salt is added to the mixture in order to hydrate the anionic polymers.

Abstract: A composition and method for stimulating a subterranean formation. The composition contains an anionic polymer which is readily dispersible in water, having a molecular weight sufficient to thicken water, and a cationic or amphoteric polymer or mixtures thereof.

Abstract: Foundry sand grains coated with a binder composition which comprises 100 wt. parts of methylolmelamine or alkylated methylolmelamine and 5 to 100 wt. parts of a water-soluble organic compound having a hydroxyl group. The sand grains coated with the composition are effective in a low-temperature foundry, especially for forming a core in an aluminum-alloy foundry.

Abstract: An improved denture adhesive containing a karaya gum adhesive component in a hydrophilic vehicle comprising certain polyethylene glycols and, as an optional component in certain forms of the subject adhesives, glycerin, for enhancing pharmaceutical elegance of the final product.

Abstract: An adhesive composition comprising a mixture of water based polymer in latex form and a material generally referred to as a thickening agent is disclosed for removably adhering a product to a substrate, for example a carpet with an attached backing to a flooring substrate. The adhesive may be applied as a layer to the carpet backing, dried and subsequently activated with water to adhere the carpet to the floor. After drying, the adhesive layer may be reactivated with water to permit the carpet to be removed from the floor. The adhesive layer when dried on the surface of a latex foam backed carpet provides a non-tacky surface which additionally increases the abrasion resistance of the latex foam backing thereby reducing damage to the backing during normal storage and handling.

Abstract: This invention is relevant to a method for saving fuel in heating plants which utilize thermal energy obtained through combustion of fuel in a boiler and in which the heat transfer medium is circulating water, said method consisting of mixing the circulating water with aqueous solution or homogeneous dispersion of a salified polymeric substance selected from amongst polymers and copolymers of acrylic or methacrylic acid, carboxymethylcellulose, alginates.

Abstract: Novel chromogenic fluoran compounds of the formula: ##STR1## wherein R.sub.1 is selected from the group consisting of alkyl radicals of from five to eight carbon atoms; R.sub.2 is selected from the group consisting of alkyl radicals of from one to eight carbon atoms; R.sub.3 is selected from the group consisting of hydrogen atom and lower alkyl radicals of from one to four carbon atoms; X.sub.1 and X.sub.2 are independently selected from the group consisting of hydrogen atom and lower alkyl radicals of from one to four carbon atoms, X.sub.3 is selected from the group consisting of hydrogen atom, lower alkyl radicals of from one to four carbon atoms, halogen atoms and trifluoromethyl radical; and n is an integer of a value of 1 or 2; providing that R.sub.1 does not represent an amyl radical when R.sub.2 is selected from the group consisting of alkyl radicals of from one to five carbon atoms, X.sub.1 and X.sub.2 are each a hydrogen atom, X.sub.

Abstract: Self-emulsifiable antifoams containing an organopolysiloxane in which at least 80 mole percent of the siloxane units are dihydrocarbon siloxane units, a filler, a water-soluble cellulose derivative, and as an additional dispersant, at least one compound having the following general formula:RCOO(CH.sub.2).sub.2 SO.sub.3 Mwhere R is an aliphatic hydrocarbon radical having at least 7 carbon atoms in which at least 10 percent of the number of R radicals must have at least 11 carbon atoms, and M represents an ammonium group or an alkali metal atom.

Abstract: This invention concerns with an improved microcapsule dispersion prepared by adding the following components to a known microcapsule dispersion containing PVA; a pulp having a specific weighted average fiber length, another type of pulp, carboxymethyl cellulose and/or a specified periodic acid type compound, and is characterized by overcoming the drawbacks of known microcapsule dispersions attended by use of PVA.

Abstract: A method of preparing phosphor suspensions for coating fluorescent lamps wherein the temporary organic binder is an association compound of purified carboxy methyl cellulose and polyethylene oxide in such proportions as to avoid the gelation caused by ionizable phosphors releasing multivalent cations.

Abstract: A liquid gel concentrate for forming a high viscosity treating fluid is provided which can be premixed and stored before being used. The concentrate is comprised of water, a hydratable polymer which yields viscosity upon hydration and an inhibitor having the property of reversibly reacting with the hydratable polymer in a manner whereby the rate of hydration of the polymer is retarded. Upon the selective reversal of the hydration inhibiting reaction the polymer is hydrated and high viscosity yielded thereby. The concentrate can be utilized directly or it can be diluted with additional water to form a large volume of high viscosity treating fluid.

Abstract: Odontologic compositions suited for use as denture adhesives, the compositions containing a major amount of gum base and a quantity of a hydrophilic polymer to modify the adhesive properties of the gum base together with processes for producing such compositions.

Abstract: Solid copolymers are produced by copolymerizing a mixture of: (A) at least 30% by weight of a monomer having the formula: ##STR1## wherein R.sub.1 is H or CH.sub.3 and R.sub.2 is an alkyl radical containing from 1 to 14 carbon atoms; (B) from 3 to 20% by weight of an ethylenic .alpha.,.beta. unsaturated carboxylic acid or anhydride thereof, or from 3 to 40% by weight of glycidyl acrylate or glycidyl methacrylate; and (C) from 0 to 67% by weight of a monomer copolymerizable with said monomers (A) and (B). Preferably, the mixture is first bulk-polymerized until conversion to the copolymer is from 10 to 80% by weight and the polymerization is completed by suspension-polymerization. Thermosetting solid coating compositions are produced by mixing a major proportion of a solid copolymer so produced with a minor proportion of a cross-linking compound or with an epoxy resin containing at least 2 epoxy radicals in the molecule in presence of a tertiary amine curing accelerator.