Abstract: An adherent insert for artificial teeth consists of a nonwoven fabric, which is impregnated with an adhesive.In order to ensure a strong and persistent adhesiveness, the nonwoven fabric is impregnated with an adhesive which consists of a viscous mixture of alginate and/or carboxymethylcellulose, polyvinyl acetate and a solvent consisting of glycerine triacetate or propylene glycol.

Abstract: Known adhesive compositions for edge-padding a stack of sets of collated sheets of carbonless copy paper have not provided both good fanout and good adhesion within individual sets unless used with carbonless copy paper from the company that supplies the adhesive. This problem is here resolved by using a water-based adhesive composition that differ from those in current use simply by adjusting the amount and type of monohydric and polyhydric alcohol. Best results are attained when the polyhydric alcohol is noncrystalline sorbitol.

Abstract: A strippable coating composition is shown for use as a temporary protective coating on a variety of substrates. The composition includes a water based polymeric emulsion which is dispersed in an aqueous carrier to form a stable emulsion. Release aids are incorporated in the composition which allow the protective coating to be removed by peeling or washing off with water.

Abstract: A method of preparing a polyvinyl alcohol hydrogel contains the steps of charging an aqueous solution of a polyvinyl alcohol having a degree of hydrolysis of not less than 95 mol % and an average polymerization degree of not less than 500 into a container, the aqueous solution containing the polyvinyl alcohol in a concentration of not less than 5 wt. %, cooling the aqueous solution of the polyvinyl alcohol at a temperature of from - (minus) 9.degree. C. to - (minus) 3.degree. C., subjecting the aqueous solution of the polyvinyl alcohol to physical stimulation, and then maintaining the aqueous solution of the polyvinyl alcohol at a temperature of from - (minus) 5.degree. C. to + (plus) 5.degree. C. The polyvinyl alcohol hydrogel may be contained in a plastic container. An MRI phanton is composed of the plastic container containing such polyvinyl alcohol hydrogel.

Abstract: A method for extruding polyvinyl alcohol which comprisesadding sufficient energy to the polyvinyl alcohol to both melt it and essentially eliminate the crystallinity in the melt, andsimultaneously removing energy from the melt at a rate sufficient to avoid decomposition of the polyvinyl alcohol.Rapidly cooling the extruded melt reduces the heat history and improves the resulting color of the extrudable polyvinyl alcohol.

Abstract: Anti-icing compositions, such as used on aircraft wing surfaces, may be thickened using a blend of a polyacrylic acid and a copolymer of polyacrylic acid with a vinyl monomer, where the copolymer acts as a thickener modifier. The two polymers form a thickener blend. The polyacrylic acid may have a weight average molecular weight of from about 2,500,000 to about 3,500,000 and be slightly crosslinked with a diene monomer. The composition also contain an alkylene glycol component, such as propylene glycol, diethylene glycol and mixtures thereof. These compositions retain a high viscosity,even when diluted with water, and exhibit a highly pseudo plastic rheology indicating desirable flow off characteristics. A neutralizing agent to neutralize at least partially the carboxylic acid groups of the thickening blend is also preferably included.

Abstract: An adhesive element which exhibits excellent properties with respect to a variety of substrates, such as, skin, glass, fabric, paper, plastic, and other non-porous surfaces which is non-toxic, and non-sensitizing. The element exhibits high cohesive strength so that its integrity is maintained on removal from the substrate leaving no residues and is highly flexible so that total confirmation with the underlying shape of the substrate is maintained. The adhesive composition is the hydrolysis or esterification product of a methylvinyl ether/maleic anhydride co-polymer with an hydroxylated compound. Methods for preparation of the inventive adhesive element are disclosed.

Abstract: A composition useful for the thermal stabilization of polyvinylchloride resin comprising an alkyl and aryl-substituted beta-diketone, mannitol and a mixture of magnesium and zinc salts of benzoic and fatty aliphatic acids is disclosed. Also disclosed is polyvinylchloride resin effectively stabilized with the stabilizer composition and a method for effectively stabilizing polyvinylchloride from discoloration at elevated temperatures.

Abstract: Casting solutions for the production of light-polarizing films or sheets contain, relative to the sum of weights (A)+(B)+(C)+(D)=100% by weight, (A) 30-95% by weight, preferably 40-75% by weight, of water, (B) 1-40% by weight, preferably 4-30% by weight, of vinyl, alcohol polymer, (C) 0.01-5% by weight, preferably 0.02-2% by weight, of the dichroic dyestuff, (D) 0.1-75% by weight, preferably 0.5-50% by weight, of one or several organic compounds from the group consisting of aliphatic polyols having 2-6 C atoms, aliphatic ether polyols having 2-6 C atoms, C.sub.1 -C.sub.4 -alkyl ethers of aliphatic polyols having 2-6 C atoms, aliphatic aminoalcohols having 2-4 C atoms, amides of aliphatic C.sub.1 -C.sub.4 -carboxylic acids, and, if desired, a C.sub.1 -C.sub.4 -monoalcohol, and, if desired (E) further additives customary for casting solutions, for example stabilizers, and wherein if using glycerol solely, the weight ratio of glycerol: vinylalcohol polymer is about 0.2-1:1, preferably 0.3-0.5:1.

Abstract: Aliphatic alcohol, and high boiling point hydroxy compound additives are added to poly methyl methacrylate to improve the ultraviolet radiation resistance of the polymer. The additives may be incorporated into the poly methyl methacrylate by including the additives with the monomers prior to polymerization. Alternatively, the additives may be incorporated into the poly methylmethacrylate by addition to polymerized methyl methacrylate.

Abstract: Disclosed is a styrene-based resin composition which comprises (a) 100 parts by weight of styrene-based polymer having a high degree of syndiotactic configuration, (b) 0.01 to 15 parts by weight of at least one nucleating agent selected from an organophosphorus compound and a metal salt of an organic acid, and (c) 0.01 to 15 parts by weight of at least one component selected from a polyoxyalkylene compound, a fatty acid and a derivative thereof.The composition can produce various molding products with excellent mold-releasing property, surface gloss, bending strength, bending modulus and heat resistance.

Abstract: The present invention provides resin compositions comprising a blend of two different saponified products of ethylene-vinyl acetate copolymers. The composition is much improved compared to a single EVOH in flexibility without adversely affecting the transparency and gas barrier property. Laminate films comprising at least one layer of said composition are excellent in resistance to dropping shock, ability to prevent air-back, skin-pack adaptability and shrink-packaging capability.

Abstract: A film easily soluble in cold water includes a water-soluble copolymer composed of 2 to 40 mol % of an allyl ester moiety, 97.5 to 50 mol % of a vinyl ester moiety and 0.5 to 10 mol % of at least one member selected from the group consisting of unsaturated monocarboxylic acid, unsaturated dicarboxylic acid and anhydrides thereof, and the copolymer has a degree of saponification of not less than 65 mol %. The film is easily soluble in cold water and such solubility in cold water is not lowered even if the film comes into contact with either alkaline or acidic materials and it can suitably used as wrapping material for packages which are directly thrown into water together with packed materials. The copolymer may be used of such an allyl ester, vinyl ester and further one of unsaturated carboxylic acids.

Abstract: A heat reserve material having excellent physical properties. The heat reserve material comprises;(A) a hydrophilic polymer having a hydroxyl group on a principal chain,(B) oxide glass, and(C) water and/or a water-soluble alcohol,wherein an amount of component (B) is within the range of 1 to 50 parts by weight based on 100 parts by weight of component (A), and an amount of component (C) is 6 to 50 times larger than the total weight of components (A) and (B).

Abstract: A stabilizer for polymer/polyols characterized by four key features: (1) prepared from a starting polyol having a functionality greater than 4; (2) having at least 60% retained unsaturation; (3) having a viscosity greater than 2000 cSt; and (4) prepared where the starting polyol is capped with alkylene oxide and/or the adduct formed between the starting polyol and the reactive unsaturated compound is capped with ethylene oxide.

Abstract: A pneumatic tire having a coating on at least one of its surfaces comprised of (a) polyvinyl-alcohol coating material containing (B) aluminum hydroxide.

Abstract: A pigment dispersion of enhanced viscosity and heat stability characteristics for use in coating systems is provided. The pigment dispersions generally comprise a pigment carrier, a pigment of the type having a hydrophilic surface, and a surfactant functional as a dispersant in a relatively non polar matrix and which is present on the surface of the pigment in an effective amount. Pigment carriers include water-based carriers and organic solvent-based carriers. Finished coatings having improved viscosity and heat stability are also provided. The finished coatings comprise a coating base and the surfactant treated pigments. Such pigments include iron oxide pigments yellow iron oxide pigment, black iron oxide pigment, divalent ferrite pigments, zinc ferrite pigment, and magnesium ferrite pigment. Such surfactants include trimethylol propane, and trimethylol ethane.

Abstract: A composition comprised of polyvinyl alcohol coating and at least one water insoluble particulate organic or inorganic material having a plate like structure for use on at least one side of a rubber tire. Preferred particulate materials are flake mica and flake glass.

Abstract: A coating composition comprising:(a) 100 parts by weight (in terms of organoalkoxysilane) of at least one compound selected from the group consisting of (a') an organoalkoxysilane represented by the general formula (I):RSi(OR.sup.1).sub.3 (I)wherein R is an organic group having 1-8 carbon atoms and R.sup.1 is an alkyl group having 1-5 carbon atoms or an acyl group having 1-4 carbon atoms, (a") a hydrolyzate of (a') and (a'") a partial condensate of (a'),(b) 5-50 parts by weight (as solids) of colloidal alumina, and(c.sub.1) 2-200 parts by weight of at least one organopolysiloxane having at least one reactive functional group in the polymer molecule and/or(c.sub.2) 3-6,000 parts by weight of at least one silyl group-containing vinyl polymer having, at the terminal(s) or side chain(s) of the polymer molecule, at least one silyl group having a silicon atom having bonded thereto a hydrolyzable group, and(d) an organic solvent.

Abstract: Compounds having defined functional groups are described which color stabilize aromatic carbonate polymers or blends therewith upon exposure to sterilizing radiation.

Abstract: There is provided a flame retardant for thermoplastic resins comprising(i) 20 to 60% by weight a silicone oil;(ii) 10 to 40% by weight a silicone resin;(iii) 5 to 60% by weight a gassing agent selected from the group consisting of compounds containing both phosphorus and nitrogen or a mixture of phosphorus containing compounds with nitrogen containing compounds and(iv) a polyhydric alcohol in a weight ratio to said gassing agent ranging from about 1/9 to about 1/5.

Abstract: A process for reducing the odor of isotactic polypropylene containing an odor producing unsubstituted or substituted benzoic acid ester by admixing molten isotactic polypropylene with a compound capable of undergoing transesterification with the odor producing ester, said transesterification compound being (i) a partially esterified glycerol; (ii) an expoxide; (iii) a monofunctional or polyfunctional alcohol; (iv) an aliphatic acid ester; or (v) mixtures thereof wherein the transesterification compound is of such functionality and/or of sufficient molecular weight to yield an ester of a molecular weight of at least about 300 upon undergoing ester interchange with said odor causing benzoic acid ester.

Abstract: A fire-retardant, fluid-resistant coating composition having enhanced bonding strength and increased aesthetic appeal. The composition, comprising from 3-4 parts of a liquid acrylic emulsion, from 1-2 parts of a liquid latex polymer suspension, from 1-3 parts of an adhesive material and from 1-2 parts of a gypsum-based powder, may be sprayed, brushed or rolled onto a variety of substrates. A coated product may also be produced by applying the coating composition to a substrate comprising a reinforcing material such as glass fibres so as to form sheets or laminates which may be rolled for transportation and storage with minimal danger of cracking, chipping or peeling. The composition may also be utilized to provide an adhesive bond by applying it to a surface of a first substrate and then contacting the coated surface with a second substrate while the composition is still viscous.

Abstract: A method and material for protection from airborne asbestos and other particular contamination is disclosed that is useful for protecting the environment and individuals working therein as occurs at a job site when friable or cementitious asbestos containing coatings are being removed from existing structures. The method includes application of a combined wetting and encapsulation formula which bonds the asbestos fibers to materials in the formula so as to convert friable asbestos to non-friable asbestos and a hardening procedure and formula which places the bonded non-friable asbestos in a hardened mass so that it may be safely disposed of.

Abstract: High density polyethylene containing chromium catalyst residues is stabilized using a combination stabilizer system comprising 2,2'-ethylidene-bis(4,6-di-t-butylphenol), a solid polyol having from five to six carbon atoms and one alcoholic hydroxyl on each carbon, and a tris(alkylaryl)phosphite.

Abstract: There is provided a pigment concentrate dispersible in plastics and having a substantially improved characteristic extrusion screen life, comprising a dispersion in a resin carrier of an inorganic pigment of the type having a hydrophilic surface, having on its surface in an effective amount a surfactant of the type characterized by an attached polar terminus, in relation to the surface of the pigment, and an unattached nonpolar terminus, in relation to the carrier resin, or of the type characterized by a high molecular weight surface blocking agent. Such pigments include iron oxide pigments, red iron oxide pigment, yellow iron oxide pigment, black iron oxide pigment, divalent ferrite pigments, zinc ferrite pigment, and magnesium ferrite pigment. Such surfactants include dimethyl polysiloxane, isopropyl triisostearoyl titanate, trimethylol propane, trimethylol ethane, and low molecular weight polyethylene.

Abstract: A curable composition comprising chlorinated polyethylene containing 20 to 50 weight percent chlorine, from 0.75 to 3 parts per 100 parts by weight chlorinated polyethylene of a polymercapto compound such as 2,5-dimercapto-1,3,4-thiadiazole, from 0.5 to 20 parts by weight per 100 parts by weight chlorinated polyethylene of an acid acceptor such as magnesium oxide, from 0.25 to 10 parts by weight per 100 parts chlorinated polyethylene of a polyhydric alcohol. Preferably the composition contains an initiator which is an amine, quaternary ammonium compound or a phosphonium compound.

Abstract: A molded article of a transparent ABS resin comprising 10 to 24% by weight of a diene type rubber having a weight average particle size of 150 m.mu. or less and not containing methyl methacrylate in the continuous resin phase is subjected to wet plating. The resulting plated resin article has an excellent adhesion of the plating layer and a good transparency.

Abstract: Disclosed herein are a polypropylene resin composition comprising 100 parts by weight of propylene homopolymer showing a stereoregularity of a boiling heptane-insoluble part thereof of not less than 0.960 as an isotactic pentad rate obtained by .sup.13 C-NMR and 0.01 to 2 parts by weight of a hydrocarbon polymer having completely or partially saturated main hydrocarbon chain and at least one hydroxy group at an end of the main hydrocarbon chain, and a biaxially stretched film comprising the polypropylene resin composition.

Abstract: Disclosed are self-extinguishing polystyrenic compositions with improved thermal stability properties, comprising a styrenic resin and a fire-retardant agent which can either comprise solely a brominated pentaerythritol having at least one free-OH group or such a compound in combination with a peroxide.

Abstract: Films which are rapidly soluble in cold and warm water are formed from blends of water soluble polyvinyl alcohol (partially hydrolyzed polyvinyl acetate) and polyacrylic acid. The polymers are compatible and form homogeneous mixtures from which clear, transparent, non-tacky, easily handleable, mechanically strong films can be formed. The films are stable at both low and high humidity conditions, i.e., the films do not become brittle or tacky and retain their high rates of dissolution in water even after being stored in low or high humidity environments at both high and low temperatures. Further, improvements are achieved by incorporating a plasticizer into the polymer blend. The films are also heat sealable and biodegradable.

Abstract: Disclosed is a heterophase ink composition comprised of a water insoluble polymer dispersed in a liquid medium, the polymer containing therein an oil soluble dye, and a nonionic stabilizer permanently attached thereto.

Abstract: A method for controlling the viscosity of organic liquids, said organic liquid having a solubility parameter of from about 6 to about 10.5, which comprises incorporating in said organic liquid a minor amount of a polymer complex, said complex being comprised of polymer A, containing neutralized sulfonate groups and polymer B, containing basic nitrogen groups, both functional groups being presented at a level of from about 4 to 500 meq. per 100 g. of polymer, wherein polymer B has the formula: ##STR1## wherein R.sub.1 is H or an alkyl group having about 1 to about 8 carbon atoms, R.sub.2 is an alkyl group having about 1 to about 18 carbon atoms, x is about 50.0 to 99.8 weight percent and x is about 0.2 to about 50.0 weight percent.

Abstract: A curable composition comprising an organic polymer containing at least one silicon-containing hydrolyzable group in the polymer molecule, an acid phosphoric acid compound and an organozirconium compound. The curable composition can be rapidly cured and has an improved pot life both in open system and in closed system.

Abstract: In order to preserve the solubility of films and moldings of polyvinyl alcohol in cold water even under the action of an aggressive atmosphere, in particular a strongly acidic atmosphere, the thermoplastically processable polyvinyl alcohol composition used for the preparation of the films and moldings is stabilized by the addition of a water-soluble polymer or copolymer which is composed to the extent of at least 70% by weight of monomer units which are carboxylic acid amides at least monosubstituted on the amido nitrogen. N-vinylpyrrolidine, N-vinyl-N-methylacetamide and the alkali metal salts or the ammonium salts of 2-acrylamido-2-methylpropanesulfonic acid have proved to be particularly suitable representatives of this group of compounds.

Abstract: A novel optically clear combination which is a composition of matter is disclosed. The disclosed composition is an EPDM vulcanizate of remarkable clarity, the formulation of which involves a synergistic combination of EPDM elastomer, fumed silica, coupling agent, antioxidant, at least one and preferably two curing coagents, and preferably an antistatic agent.

Abstract: A self-inverting water-in-oil polymer emulsion having a low pour point is prepared by adding a pour point depressant, diol and triol in amounts effective to lower the pour point and inhibit skin formation on the emulsion. The emulsion may be prepared by adding a mixture of from about 0.05 to about 0.5 parts by weight of pour point depressant, from about 5.0 to about 100.0 parts by weight of diol and from about 5.0 to about 100.0 parts by weight of triol to 1.0 to 100.0 parts by weight of a self-inverting water-in-oil polymer emulsion.

Abstract: The dispersion of poly(ethylene tetrafluoroethylene) containing various aids such as a viscosity improver, wetting agent, water, solvent, and an anti-sag agent. The dispersion is sprayable and thick coats can be applied to an article or object. Upon cure, the coating exhibits very good physical properties such as toughness, wear and abrasion resistance, and corrosion resistance.

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: A hair spray composition comprising an alcoholic solution of partially neutralized vinyl/maleic copolymer and an alkali metal borohydride or oxidizer stabilized against discoloration.

Abstract: A synthetic resin composition is provided which comprises at least one lanthanoid-containing compound selected from the group consisting of oxides, hydroxides, inorganic and/or organic acid salts and complexes of lanthanoids and a vinyl polymer.The resin composition has a high neutron ray-shielding capacity and excellent optical and mechanical properties.

Abstract: Compositions of matter and processes for making the compositions of matter are described. The compositions are extrusion lubricant compositions and may be prepared by either combining appropriate initial components in predetermined amounts, or forming a homogeneous melt of a fatty acid, e.g. stearic acid, and one or more polar substances, e.g., a fatty alcohol or polyalcohol, adding a metal base material to form the metal salt of the fatty acid in situ, and adding one or more waxes such as microwaxes, paraffins and/or alpha-olefins to the mixture. The compositions are effective lubricants used in heat processing of vinyl chloride resin compositions.

Abstract: For the thermoplastic processing of polyvinyl alcohol, the processing temperature must be below the decomposition temperature of the polyvinyl alcohol; this is attained by incorporating plasticizers. For preparing a plasticizer-containing granular polyvinyl alcohol wherein the plasticizer is homogeneously distributed, there is used as starting material a granular polyvinyl alcohol consisting substantially of particles having a definite diameter. The plasticizer is incorporated in the presence of a small amount of water insufficient to dissolve the polyvinyl alcohol, and the temperature is adjusted in a definite manner during the mixing operation. Simultaneous presence of fine particles of a high molecular weight organic compound soluble or dispersible in water is advantageous. The plasticizer-containing granular polyvinyl alcohol is suitable for the manufacture of any shaped articles, especially films and sheets.

Abstract: Described is an aqueous chip resistant coating composition exhibiting a viscosity of at least 5,000 centipoise, preferably containing binders with a high molecular weight, preferably at least 20,000. Although these coatings may be applied to a variety of substrates, for coating electrocoated substrates the following eight binders are particularly preferred: ethylene vinyl acetate copolymer, carboxylated ethylene vinyl acetate, epoxy functional acrylic resin, carboxylated styrene-butadiene resin, carboxylated acrylic, hydroxy functional acrylic, self-crosslinking acrylic; and carboxylated PVC acrylic. Generally, it is preferred to apply the chip resistant coating via an airless spray and the heat curing the coating.

Abstract: Process for the preparation of water-in-water secondary dispersions of homo- or copolymers of (meth)acryl compounds through the dispersion of fine particle polymers of the type cited in an aqueous solution which contains in dissolved form from 2 to 50 weight percent of a polymer of ethylene oxide and/or propylene oxide having a molecular weight of from 500 to 10,000. The secondary dispersions can be easily diluted with water and are used as flocculants.

Abstract: A highly diffuse, reflective paint comprising an alcohol soluble binder, polytetrafluoroethylene (TFE) and an alcohol for coating a substrate and forming an optical reference with a superior Lambertian characteristic. A method for making the paint by first mixing the binder and alcohol, and thereafter by mixing in outgassed TFE. A wetting agent may be employed to aid the mixing process.

Abstract: A method for treating polymers of ethylene which have been stabilized with hindered phenolic stabilizer to reduce the discoloration produced upon processing the stabilized polymer at elevated temperature wherein before completion of the processing at elevated temperature there is admixed with the stabilized polymer compositions at least one compound chosen from the group consisting of aliphatic hydroxy compounds and epoxy-containing compounds. In a preferred embodiment, the polymer of ethylene and aliphatic hydroxy compound are further admixed with water. In another embodiment of the invention the aliphatic hydroxy compounds contain from 1 to 4 hydroxyl groups and are water soluble.A treated polymer of ethylene stabilized with hindered phenolic stabilizer that has been admixed with a compound chosen from the group consisting of aliphatic hydroxy compounds and epoxy-containing compounds.

Abstract: A protective surface coating composition containing polyol, glycoluril, and emulsion polymer can be heat cured to produce cured films on substrates. The coating is particularly useful as wood coatings.

Abstract: Primer compositions are disclosed for improving the adhesion of abrasion resistant polysiloxane coatings to plastic substrates. The primers contain a thermosettable acrylic resin, an aminofunctional organosilicon compound, and optionally an ultraviolet light screening compound. A process employing the primer compositions to provide more durable adhesion of transparent, abrasion resistant polysiloxane coatings on plastic substrates is also disclosed.

Abstract: The invention disclosed herein provides a process for the high temperature extrusion of polyvinyl alcohol monofilament soluble in water comprising the steps of blending from about 80 to 98 percent by weight polyvinyl alcohol resin having a number average molecular weight of from about 10,000 to 200,000 and a degree of hydrolysis of from about 85 to 91 percent with from about 20 to 2 percent by weight of a plasticizer selected from the group consisting of hydroxyethers, diols, triols and other polyols and mixtures thereof, reducing the moisture content of the resin to a level of less than about one percent and the volatile content thereof to a level of less than about two percent and, melt extruding the blend to form monofilaments.