Abstract: Thickening systems for water-based building material mixes, composed of 0.01 to 2% by weight of a water-soluble cellulose ether, 0.01 to 2% by weight of polyvinyl alcohol and 0.005 to 1% by weight of boric acid or salts thereof, the respective percentages being based on the dry substance content of the building material mix.Due to the addition of boric acid or borax, these thickening systems have an improved thickening action compared with thickening mixtures composed only of cellulose ether and polyvinyl alcohol.

Abstract: An enteric film is produced by spraying on a material a mixed solution of (a) hydroxypropylmethylcellulose phthalate exhibiting a viscosity of about 136 to 204 centistokes as 10% methanol/dichloromethane (1:1 by weight) solution at 20.degree. C., (b) polyethylene glycol presenting solid state at ambient temperature and (c) shellac, wherein respective ratios of (b) and (c) to (a) are 0.1 to 20 weight percent and 5 to 40 weight percent; and then drying the solution.The enteric film excels in film strength and acid resistance, and can be employed in pharmaceutical preparations.

Abstract: Process for binding cellulosic materials with a binding agent composed of aqueous emulsion of polyisocyanates and a cellulose ether. The cellulose wither is present in amounts of 0.1-10% b.w.

Abstract: A soft film applicable to the oral mucosa and a drug preparation comprising said film are disclosed, the film comprising a homogeneous mixture comprising a vinyl acetate homopolymer, an acrylic acid polymer, and a cellulose derivative capable of being dissolved in or swollen with water and a lower alcohol. The film or preparation is less causative of an adverse feeling on application to the oral mucosa, excellent in shape retention on water absorption, and adhesive to the oral mucosa for an extended period of time.

Abstract: Water soluble nonionic cellulose ethers are provided, containing mixed alkylphenoxyalkyleneoxy-2-hydroxy propylene groups, having hydrophilic units composed of (a) alkyleneoxy groups of two or three carbon atoms, in a number from zero to about six, selected from --CH.sub.2 CH.sub.2 O--; ##STR1## and --CH.sub.2 CH.sub.2 CH.sub.2 O--; and (b) one 2-hydroxy propylene group, together with hydrophobic units which are alkylphenoxy groups of the formula ##STR2## where R and R.sub.4 are hydrocarbon groups having from about four to about thirty carbon atoms, preferably from about nine to about eighteen carbon atoms; n.sub.

Abstract: Dry products in flake or granulate form suitable as a paste base may be obtained by drying a mixture, containing approximately 30 to 80% by weight of water, of from(a) 30 to 95% by weight of carboxymethylated and/or alkoxylated starch,(b) 3 to 40% by weight of a cellulose ether, and(c) 2 to 40% by weight of a water-dispersible polymer or water-soluble polymer, and(d) optionally, conventional additives, such as preservatives, wetting agents, fillers and the like,in a thin layer on a surface heated to 80.degree. to 200.degree. C. The dry products obtained do not undergo physical separation and are readily dispersible or self-dispersible in water.

Abstract: The invention concerns a solvent-free, polymerizing hotmelt substance free of, or low in monomers, for corrosion- and/or abrasion proofing and/or forming a protective film with barrier properties on a real substrates and molded bodies made of metal, plastic, cellulose materials and/or inorganic materials, in particular for wrapping purposes, and consisting of(a) one or more polymerizing polymers containing hydroxyls with an average molecular weight (M.sub.w) between 1,000 and 500,000 and with a glass transition temperature (T.sub.g).gtoreq.20.degree. C., and/or(b) one or more polymerizing, linear, unbranched and/or unbranched polyesters and/or their copolymers with an average molecular weight (M.sub.w) between 900 and 50,000 and with a glass transition temperature (T.sub.g).gtoreq.-50.degree. C.

Abstract: A water migration resisting filler for filling the interstices of a stranded conductor, an electrical power transmission cable including such filler and a method of making such cable. The filler includes a polymeric compound having a 100 gram needle penetration value between 50 anad 100 tenths of a millimeter at 25.degree. C. and particles of a water swellable material having a particle size of not greater than 20 microns are in contact with the polymeric compound either by admixing it with the compound or applying it to the surface thereof. In the method, the polymeric compound is flowed around the wires of the conductor as they are stranded together and the water swellable material is either admixed with the compound or applied thereto as the conductor is formed, a semi-conductive layer is extruded around the so-filled conductor and a layer of insulation is extruded around the semi-conductive layer.

Abstract: Thermoplastic elastomer blends comprising a thermoplastic elastomer and 1-20% by weight of a water insoluble alkyl cellulose exhibit improved mechanical properties compared to the unblended thermoplastic elastomer. The preferred thermoplastic blend of end polypropylene elastomer is EPDM. The preferred concentrations are 2.5-15%, most preferably 5-12%, all percentages being by weight based on total polymer content. The blends are formed by high shear mixing at a temperature at which both materials are melt processible. The alkyl cellulose in the product is present as domains which are essentially uniformly dispersed in a thermoplastic elastomer matrix.

Abstract: As a result of the action of electron acceptors, for example chlorine, bromine and/or iodine, on compositions containing a linear, branched or structurally crosslinked polymer and an unsubstituted or substituted tetrathionaphthalene, tetraselenonaphthalene, tetratelluronaphthalene, tetrathiotetracene, tetraselenotetracene or tetratellurotetracene, electrical conductivity is imparted to the compositions through the formation of charge-transfer complexes. These compositions are suitable for the production of mouldings, filaments, fibres, coatings and composite materials which have an antistatic finish or are electrically conducting.

Abstract: A flat or semi-flat water paint composition having improved rheology- and performance-properties prepared by adding a water-soluble nonionic cellulose ether and an associative polyurethane thickener, each being a rheology- and performance-improving agent, to a flat or semi-flat water paint composition, wherein the weight ratio of the associative polyurethane thickener to the water-soluble nonionic cellulose ether is 2:8-8:2.

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: An aqueous protective coating composition comprising (a) a nonionic, water-soluble 3-alkoxy-2-hydroxypropylhydroxyethylcellulose wherein the alkyl moiety is a straight or branched chain alkyl group having 6 to 24 carbon atoms and (b) a film forming latex, is disclosed.

Abstract: An ophthalmic drug delivery system is provided which includes at least one particle of bioerodible material, and a liquid or ointment carrier which includes ophthalmic drug to be delivered to the ocular area. A process of making the system and a method of treatment are also provided.

Abstract: A process of forming a durable waterproof coating on a substrate comprising (a) applying to the surface of the substrate an aqueous dispersion comprising at least one film-forming polymer, pigment material including clay in an amount sufficient to improve the adhesion of the coating to the substrate, and water, the pigment volume concentration of the dispersion being greater than 15, and (b) allowing the dispersion to dry on the surface.

Abstract: A moldable non gelatin containing hydrophilic polymer composition containing between 5 and 25% water.

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: Polyurethanes which have been prepared or combined with another material are made by combining or applying a polyurethane-forming reaction mixture or polyurethane to another material such as a PVC foil or textile. The polyurethane-forming mixture or polyurethane is made up of an organic polyisocyanate, a high molecular weight isocyanate reactive material, a catalyst and a stabilizer against thermolysis and contact discoloration. The required stabilizer is an epoxide having an epoxide equivalent weight between 57 and 10,000. Other additives commonly used in polyurethane chemistry such as blowing agents, chain extenders and surfactants may also be employed. The polyurethane composites thus produced are characterized by improved thermal stability and reduced discoloration.

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: Adhesive dispersions for tiling, based on(1) 10-95% by weight of a water-dilutable, cellulose nitrate-containing paste with a weight ratio of solids to solvent .gtoreq.1,(2) 0.1-50% by weight of an adhesive resin dispersion or an adhesive resin which can be emulsified in H.sub.2 O,(3) 0-70% by weight of a tile adhesive filler,(4) 0-75% by weight of water,(5) 0-10% by weight of a conventional thickener.

Abstract: A sustained release preparation comprising:(a) a non-anionic cellulose ether(b) a methoxyethylene-maleic anhydride copolymer or the hydrolyzate thereof, and(c) pharmaceutically active agents.This sustained release preparation can provide the desired sustained-release or dissolution of the pharmaceutically active agents in human organs irrespective of the acidity (i.e., pH conditions) therein.

Abstract: The present invention provides a process for manufacturing a porous polymer containing many voids in its interior, which has a small apparent specific gravity and is superior in terms of water absorbing properties, permeability and elasticity. The process comprises (1) forming O/W emulsion by using a water soluble surfactant wherein an inner phase of the O/W emulsion is a hydrophobic phase and an outer phase thereof is a water phase containing at least one water-soluble polymerizable monomer; (2) adding said O/W emulsion to a hydrophobic dispersing medium containing an oil-soluble surfactant to form O/W/O emulsion; and (3) polymerizing the monomer.

Abstract: A water-absorbent resin having an appropriate particle size and a narrow particle size distribution can be obtained by adding a powdered inorganic material in a proportion of 0.000005-0.2 part by weight to 1 part by weight of a water-absorbent resin containing therein a carboxylate as a component of the polymer with agitation in an inert solvent in the presence of 0.1-5.0 parts by weight of water and 0.005-0.2 part by weight of a surfactant and then removing water and the inert solvent by distillation.

Abstract: Ocular inserts with or without pharmacologically active agents comprising low molecular weight polymers have a lower propensity to cause blurred vision compared with inserts prepared from high molecular weight hydroxypropyl cellulose. When an enteric coating material is included as a constituent of the matrix there is provided a means for controlling and predicting dissolution rates of the insert to yield a prolonged residence time.

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: The sprayable matting lacquer is preferably applied to a transparent or translucent polymeric base film to provide the composite film with desired non-streaking matte properties so that such film becomes suitable for use by artists and the like. The matting lacquer includes a plastic resin film-forming agent, a soft matting agent formed of discrete uniformly spherical, smooth-surfaced polyolefin, preferably polyethylene particles having an average diameter not in excess of about 40 microns and preferably 10-40 microns and in a ratio of 1-3:3-1 to the resin, a relatively hard matting agent composed of particles of silica, calcium carbonate or the like, in a concentration of about 10% that of the soft matting agent, an organic solvent for the film-former and a plasticizer. The aqueous paint which is utilizable on the matted film includes the described soft matting agent, a resinous film-forming binder and dispersing agent, as well as a transparent coloring agent.

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: Compositions and methods are provided for forming a coated wood product having the appearance and texture of wood grain, which conceals joints on the wood surface and which is capable of accepting conventional wood stain.

Abstract: A whitewater dispersant system containing a cationic surfactant and a cationic polyacrylamide. The viscosity modifier of the present invention may include amounts varying from 0 to 90% of a nonionic cellulosic viscosity modifier. The resulting whitewater is particularly effective in dispersing glass fibers in a slurry which is used to form a glass mat. The whitewater preferably has a viscosity lying in the range of from 2 to 12 cps and most preferably about 8 cps.

Abstract: Water-based silicone resin emulsions are provided comprising an organopolysiloxane resin or mixture of resins which may include a solvent carrier, and a combination of emulsifying agents including cellulosic-type and anionic surfactant-type emulsifiers as well as an amount of water sufficient for providing a water-based emulsion having a desired viscosity and silicone resin solids content by weight.

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 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: 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 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: 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: Water-soluble carbohydrate polymers are modified with crosslinked water-swellable organic polymers. The modified carbohydrate polymer compositions are useful as improved water retention aids for tile adhesive compositions, and as additives in spray plasters, wall finishing compounds, tape joint cements, wall paper adhesives, and the like.

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 relates to aqueous adhesive solutions. More particularly, this invention relates to an aqueous adhesive composition for mechanical labeling based upon starch derivatives and having a content of flow-regulating additives and, optionally, other customary additives, which comprises:(a) at least one hydroxyalkyl ether of oxidized starch with a mean degree of substitution (MS) of .ltoreq.0.2, together with(b) at least one polymer dissolved in the aqueous phase, the polymer being selected from the group consisting of water-soluble cellulose derivatives, water-soluble synthetic polymers, casein, and water-soluble starch derivatives different from component (a).

Abstract: This invention relates to aqueous adhesive solutions. More particularly, this invention relates to an aqueous adhesive composition for mechanical labeling based upon starch derivatives and having a content of flow-regulating additives and, optionally, other customary additives, which comprises:(a) at least one hydroxyalkyl ether of oxidized starch with a mean degree of substitution (MS) of .ltoreq.0.2, together with(b) at least one polymer dissolved in the aqueous phase, the polymer being selected from the group consisting of water-soluble cellulose derivatives, water-soluble synthetic polymers, casein, and water-soluble starch derivatives different from component (a).

Abstract: Differential release coating compositions for use on liners of the type employed in the manufacture of pressure sensitive adhesive backed label transfer tape in roll form. The compositions in their preferred form comprise a binder, an aqueous solution of an organopolysiloxane, a catalyst, and an acrylic acid-acrylonitrile terpolymer.

Abstract: Water-insoluble, high water-absorbent polymer beads are prepared by dispersing and suspending an aqueous solution of a water-soluble, ethylenically unsaturated monomer containing a small amount of a crosslinking agent in a dispersion medium of a hydrocarbon or a halogenated aromatic hydrocarbon, carrying out the bead polymerization in the presence of a water-soluble radical polymerization initiator and a protecting colloid comprising a cellulose ester or cellulose ether which is oil-soluble at the polymerization temperature, and separating the resulting beads.

Abstract: A cellulose derivative-containing emulsion composition which is the product of emulsion polymerization of at least one ethylenically unsaturated monomer in the presence of a water-solubilized product of a cellulose derivative-modified vinyl copolymer having an acid value of from about 3 to about 150, said vinyl copolymer being obtained by copolymerizing a cellulose derivative with an ethylenically unsaturated monomeric component composed of an ethylenically unsaturated acid and another ethylenically unsaturated monomer.

Abstract: The present invention relates to release coatings which comprise cellulosic esters or cellulosic ethers in combination with adhesion-promoting compounds having an affinity for vinyl chloride-containing compositions. The release coatings maintain their adherence characteristics during processing of the structure in which they are disposed, but substantially lose their adherence characteristics when said structure is fused, thereby becoming easily separable from the resulting product.

Abstract: An oxidation-curable emulsion composition containing a cellulose derivative, said composition being prepared by polymerizing in emulsion a mixture consisting of at least one radical-polymerizable unsaturated monomer and at least one cellulose derivative in the presence of an oxidation-curable water-soluble resin.

Abstract: Waterborne silicone coating formulations are provided. The coatings utilize water based emulsions or organopolysiloxane resins where the emulsions are provided with an effective combination of cellulosic and anionic emulsifying agents. The coatings of the present invention offer durability and resistance to extreme temperatures.

Abstract: A denture fixative composition contains a dentally acceptable excipient and an effective fixative amount of a fixative mixture comprising hydroxypropyl cellulose and at least one partially neutralized alkyl vinyl ether-maleic acid or anhydride copolymer, optionally partly crosslinked, or a partially neutralized, optionally partly crosslinked polyacrylic acid or a precursor combination of the copolymer or polyacrylic acid, neutralizing agents, and optionally crosslinking agents, which is adapted to form the fixative in situ, or polyethylene oxide.