Abstract: A new thermoplastic homopolymer of o-cresol which is a poly(2-methylphenylene oxide) having a high molecular weight distribution is described. The polymer is prepared using a 2 and/or 6 substituted pyridine catalyst to the molecular weight distribution. The homopolymer can be blended with other thermoplastic polymers. The homopolymer is rapidly biodegraded, particularly in soil containing soil microorganisms.

Abstract: Water-dilutable dispersions of acrylate copolymers having a hydroxyl number of from 40 to 200 mg KOH/g and an acid number of from 15 to 50 mg of KOH/g, obtained by free-radical copolymerization ofa) from 5 to 40 parts by weight of at least one glycidyl ester of an .alpha.-branched aliphatic saturated monocarboxylic acid,b) from 0 to 30 parts by weight of at least one diester of an .alpha.,.beta.-olefinically unsaturated dicarboxylic acid,c) from 0 to 70 parts by weight of at least one vinyl aromatic hydrocarbon, the molar quantity of component c) always being greater than or equal to the molar quantity of component b),d) from 0 to 60 parts by weight of an alkyl ester of an .alpha.,.beta.-olefinically unsaturated carboxylic acid,e) from 2 to 40 parts by weight of at least one .alpha.,.beta.-olefinically unsaturated carboxylic acid, the molar quantity of component e) always being greater than the molar quantity of component a),f) from 5 to 40 parts by weight of at least one hydroxyalkyl ester of an .alpha.,.

Abstract: A process for the preparation of pigmented toner compositions comprising: a) forming at a first temperature, a first melt mixture comprised of a partially crosslinked thermoplastic resin, pigment, optionally a wax, and optional additives, wherein the partially crosslinked thermoplastic resin is comprised of a mixture of crosslinked resin macrogel particles, crosslinked resin microgel particles, and uncrosslinked resin; and b) melt mixing at a second temperature, the first melt mixture to form a second mixture, wherein the macrogel particles are partially converted into microgel particles, and wherein the second temperature is less than or equal to the first temperature.

Abstract: The present invention is directed to an underlayment composition for an artificial playing surface comprised of a butadiene rubber, such as polybutadiene or styrene-butadiene that is commercially available as recycled polycord tires that have been granulized. An inorganic-base moisture-retaining agent such as vermiculite or perlite is also included in the composition in addition to a binder comprised of a mixture of isocyanate polyurethane and an inorganic acid. The present invention also provides a method of making the present composition. The method comprises the steps of mixing thoroughly granulized particles of butadiene rubber in a mixing container, mixing an inorganic-based moisture-retaining component with the butadiene rubber, mixing an acid having a pH.ltoreq.3 with the butadiene rubber and the inorganic-based moisture-retaining component, and mixing an isocyanate polyurethane with the butadiene rubber, the inorganic-based moisture-retaining component and the acid.

Abstract: Conductive polymers having repeating units of formula (II) ##STR1## formed by chemical or electrochemical oxidation of aniline derivatives of formula (I) ##STR2## wherein R.sub.1 denotes --(CH.sub.2).sub.n --; n is an integer between 2 and 12; R.sub.2, R.sub.3, R.sub.4 and R.sub.5 denote hydrogens or one or two of them can be a halogen atom, methyl, methoxy or nitro groups; and X denotes hydrogen an alkali metal ion, an ammonium ion, an alkyl ammonium ion or an anilinium ion. The conductive polymers have excellent stability toward electrochemical redox cyclization and good processibility.

Abstract: The present invention provides a polyurea-covered particle having a narrow particle size distribution, which comprises a vinyl polymer particle as a seed particle and a polyurea cover layer formed on the vinyl polymer particle. The present invention also provides a process for producing the polyurea-covered particle having a narrow particle size distribution, which comprises:dispersing vinyl polymer particles having a narrow particle size distribution in an aqueous medium,adding thereto a polyisocyanate compound to swell the vinyl polymer particles, andadding a polyamine compound to effect interfacial polymerization.

Abstract: A significantly improved plasticizer-polymer composition embraces a polymer containing a di-, tri- and/or tetra- ethyl-, propyl- and/or butylbiphenyl plasticizer which constitutes the major proportion by weight of any other plasticizing/softening additive, provided that the polymer is not polyvinyl chloride and when the polymer is an elastomer or rubber, or is a polystyrene, said plasticizer is diisopropylbiphenyl and/or triisopropylbiphenyl, and when the polymer is of a plastisol, essentially no ester plasticizing additive is present. As well, a polymer fabrication composition comprises a monomer and/or oligomer component in combination with said plasticizer. A method for preparing the plasticizer-polymer composition and/or the fabrication composition comprises contacting the monomer and/or oligomer component with said plasticizer, mixing to provide a uniform mixture, and carrying out further processing as may be desired so as to optionally prepare the plasticized-polymer composition.

Abstract: There is disclosed a biodegradable copolyester having a combination structure consisting of one or more repeating unit of alkyleneterephthalate and one or more repeating unit of hydroxyalkanoate, represented by the following general formula I: ##STR1## wherein n is an integer not more than 10, R is --CH.sub.3 or --C.sub.2 H.sub.5,X is, ##STR2## and a, b and c are independently a natural number, along with a preparation method therefor.An aromatic polyester have repeating unit of alkyleneterephthalate is reacted with an aliphatic polyester having repeating unit of hydroxyalkanoate at 100.degree. C. or more in a proper solvent, such as nitrobenzene and dimethylsulfoxide, in the presence of a catalyst, such as dibutyltin oxide, tin[IV] chloride, tin[IV] octoate, hexabutyl distannoxane, tributyltin methoxide, or tributyltin chloride. It is superior in biodegradability and can be produced in low cost.

Abstract: A process of preparing a polyester by reacting a diol with an acid or acid ester in the presence of a solid enzyme and in a supercritical fluid is described.

Abstract: This invention relates to foundry mixes and their uses. The foundry mixes comprise (a) a foundry aggregate, and (b) a foundry binder comprising in admixture; (1) an acetoacetate ester; (2) an .alpha., .beta. ethylenically unsaturated monomer; and (3) a liquid tertiary amine catalyst having a pK value of 12-14. The foundry mixes are used to prepare foundry shapes made from foundry mixes by a no-bake process.

Abstract: Provided by this invention are two-part liquid polysulfide compositions which utilize stable and effective manganese dioxide or like curing agents which provide reasonable working times and gel times typically a maximum of 90 minutes and desirably rapid cure rates. Also, provided are stable and effective manganese curing compositions suitable for use as an element of such two-part liquid polysulfide compositions.

Abstract: The present invention relates to a process to in-situ reactor-fill polyolefins. More specifically, the instant invention provides a process to reactor-fill polyolefins comprising the steps of (a) adding a sufficient amount of alpha-olefin to a filler prior to using the filler for in-situ polymerization; (b) prepolymerizing the mixture of step (a) by contacting the treated filler in random order of no specific sequence with a high activity polymerization catalyst, a cocatalyst, and, if necessary a cocatalyst modifier; and (c) adding an alpha-olefin under olefin polymerization reaction conditions to the reaction product of step (b) to form a reactor-filled composite. The prepolymerization step results in the formation of a sticky prepolymer on the surface and in the pores of the filler.The present invention further relates to reactor-filled polyolefin composites obtained from the process of the present invention.

Abstract: Stable, compatible, resin fortified aqueous vinyl polymer emulsions that are rich in wax are prepared in a method comprising a first polymerization of a mixture containing wax and monomers that include carboxylated monomers such as acrylic acid. The first polymerization or terpolymerization is carried out under conditions sufficient to produce a relatively low molecular weight resin. A portion of the wax rich resin from the first polymerization is neutralized and used as a cosurfactant in a second aqueous emulsion polymerization of vinyl monomers to produce a fortified vinyl latex that is rich in wax. Coatings prepared from the latex exhibit superior moisture barrier properties and are also useful as surface preservatives.

Abstract: A novel method for preparing anionic, cationic or non-ionic polymeric microemulsions comprising a multi-step process to achieve high solids and low emulsifier and oil content. The polymeric microemulsions are useful in papermaking as retention aids, in solid-liquid separation as flocculants and in enhanced oil recovery as a drive fluid.

Abstract: Perfume compositions are formed by hydrolyzing an aqueous mixture of an alkoxide, a silane coupling agent, and a perfume substance using an acid catalyst, then condensing the resulting hydrolysate using a base catalyst, to form a conjugated polymer matrix encapsulating and/or clathrating the perfume substance.

Abstract: A new process for the standardization and stabilization with simultaneous increase of reactivity of organic polyisocyanates and the polyisocyanates produced by this process. A polyisocyanate is mixed with compounds having at least one epoxide group which are represented by a specified formula. This mixture is then stabilized with a silylating agent and/or alkylating agent represented by specified formula. The polyisocyanate/epoxide mixture may optionally be heated before the stabilizing agents are added. These polyisocyanates are useful in the production of polyisocyanate addition products.

Abstract: Hydrosoluble/hydrodispersible polyester copolycondensates, well suited for the sizing of textile threads, comprise terephthalate, isophthalate, sulfoaryl dicarboxylate, ethylene glycol and polyoxyethylene glycol recurring structural units, have a glass transition temperature ranging from 15.degree. to 40.degree. C. at 85% relative humidity and the turbidity of aqueous formulations thereof are storage-stable over time; such polyester copolycondensates are conveniently prepared by (i) transesterifying admixture of dimethyl terephthalate, dimethyl sulfoaryl dicarboxylate and ethylene glycol, (ii) introducing isophthalic acid and an additional amount of ethylene glycol into the medium of transesterification and therein directly esterifying same, and (iii) polycondensing the resulting product of transesterification/direct esterification.

Abstract: Polymer/polyol compositions, obtained by polymerizing an ethylenically unsaturated monomer in situ in a polyol in the presence of inner-olefin containing at least 5 carbon atoms, are of lower viscosity and can provide polyurethanes having improved properties. Polymer/polyol compositions, obtained by polymerizing an ethylenically unsaturated monomer, in situ in a polyol in the presence of an azo compound and a peroxide having a 10 hours half-life period temperature which is lower by at least 10.degree. C. than that of the azo compound, have improved stability even at higher styrene content.

Abstract: A composition and method for consolidating proppant or gravel for propping fractures about, or for gravel packs for sand control in, wells in subterranean formations characterized by an improvement in which there is used a combination of reactants, including a capped diisocyanate that will produce polyurethane and coat the catalyst in situ. Also disclosed are specific examples of satisfactory frac fluids, diluents and catalysts for both a specially designed one-pass system and, preferably, a two-pass system of putting and consolidating the proppant in a fracture.

Abstract: A polyisocyanate composition comprising 0.1% by weight or more and less than 10% by weight of a silicate compound dissolved or dispersed into at least one kind of polyisocyanate compound selected from the group consisting of diphenylmethane diisocyanate oligomers containing 20 to 60% by weight of diphenylmethane diisocyanate and the derivatives thereof. This composition has an excellent low temperature storage stability.

Abstract: Process for the preparation of filled heat-curable compounds of the polyurethane type by reaction of condensation of the constituents of the desired compound in the presence of a pulverulent filler, which is characterized in that the said filler is predispersed in the presence of a stabilizing agent in a liquid organic phase compatible with the desired heat-curable compound in the course of its formation reaction, the said filler being then in the form of a homogeneous and stable suspension, and the suspension thus prepared is then introduced into the reaction mixture before, during or after the introduction of at least one of the constituents of the desired heat-curable compound.The process according to the invention makes it possible to produce compounds of the polyurethane type whose mechanical and physical characteristics are at least equivalent or even improved in relation to those of the unfilled identical compounds by virtue of the excellent distribution of the inorganic filler.

Abstract: In one aspect, this invention is a primer comprising a solution of: (a) a polyester resin of a carboxylic acid and a glycol; (b) a polymethylene poly(phenyl isocyanate), diphenylmethane diisocyanate, or mixture thereof; and (c) a silane-containing moiety; in a solvent mixture comprising: (i) a high boiling polar solvent; (ii) an oxygenated solvent; and (iii) an aromatic solvent; wherein the weight ratio of (a):(b) is in the range of from about 0.25:1.0 to 2.0:1.0. In a second aspect, this invention is a primer comprising a solution of: (a) 5-50% of a polyester resin of a carboxylic acid and a glycol; (b) 5-50% of a polymethylene poly(phenyl isocyanate), diphenylmethane diisocyanate, or mixture thereof; (c) 0.1-50% of a silane-containing moiety; (d) 0.1-50% of a high boiling polar solvent; (e) 10-70% of an oxygenated solvent; and (f) 1-50% of an aromatic solvent.

Abstract: A process for (co)polymerizing alpha-olefins in the gas phase in a fluidized bed or mechanically stirred bed reactor using a Ziegler-Natta type catalyst or a heat activated chromium oxide/refractory oxide catalyst wherein the (co)polymerization is carried out in the presence of 0.005 to 0.2 weight %, based on the weight of the (co)polymer bed, of an inert pulverulent inorganic substance (e.g. silica) having a mean particle diameter between 0.5 and 20 microns. The process is capable of being operated at temperatures closer to the softening point of the produced polyolefin than in the absence of the pulverulent solid.

Abstract: A dope for forming elastic polyurethane articles is prepared by using a polyol, a diisocyanate and a diamine. A solvent and a terminating agent comprising a secondary monoamine and a ketoimineamine and/or an aldoimine-amine may also be employed.

Abstract: A process for the manufacture of a partially cured polysulphide composition is provided, the curing of which is completed upon exposure of the composition to atmospheric moisture. The process comprises mixing a prepolymer with a water activatable curing agent and subjecting the composition to a partial cure with water. The reaction is then stopped by rapid dehydration after the initial induction stage of the reaction prior to the rapid increase in the viscosity of the composition. Curing of the composition is then completed by exposing the composition to atmospheric moisture.

Abstract: A method for molding ceramic powders comprises forming a slurry mixture including ceramic powder, a dispersant, and a monomer solution. The monomer solution includes at least one monofunctional monomer and at least one difunctional monomer, a free-radical initiator, and a aqueous solvent. The slurry mixture is transferred to a mold, and the mold containing the slurry mixture is heated to polymerize and crosslink the monomer and form a firm polymer-solvent gel matrix. The solid product may be removed from the mold and heated to first remove the solvent and subsequently remove the polymer, whereafter the product may be sintered.

Abstract: Linear saturated copolyesters of terephthalic acid, isophthalic acid, butanediol, and one or more aliphatic diols having at least 13 carbon atoms used as adhesives for the formation of wash-resistant bonds especially for temperature-sensitive materials. Preferably, the melting points of these adhesive compositions are from 50.degree. to 170.degree. C. and their relative viscosities, measured as 1% solutions in meta-cresol at 20.degree. C., are 1.40 to 1.80.

Abstract: Water-in-oil emulsions of cationic water-soluble copolymers which are prepared by incorporating only a portion of the cationic monomer in the aqueous phase prior to forming the water-in-oil emulsion in which polymerization will occur, forming the emulsion, adding the balance of the cationic monomer such that essentially no polymerization occurs immediately after the addition, and polymerizing the monomers. Copolymers prepared by this process show improved performance over conventionally prepared cationic copolymers.

Abstract: The invention provides a stabilizer for an aqueous dispersion of an acrylic polymer that is obtained by successive copolymerization in random order of a monomer mixture A consisting of particular amounts of styrene or methyl styrene, acrylic acid or methacrylic acid, and optionally another comonomer, and a monomer mixture B consisting of particular amounts of styrene or methyl styrene, a (cyclo)alkyl methacrylate having 1-12 carbon atoms in the (cyclo)alkyl group, and optionally another comonomer, in the presence of a particular amount of a polybutadiene having a number average molecular weight of 1500-10000, the carboxylic acid groups from the (meth)acrylic groups being at least partly ionized. The invention also pertains to an aqueous dispersion of an acrylic polymer thus stabilized.

Abstract: Compositions having perfume substance encapsulated or clathrated within are prepared by acid hydrolysis of an aqueous mixture of perfume substance and an alkoxide selected from metal alkoxides, phosphorus alkoxides, and tetraethoxysilane, followed by base catalyzed polycondensation using as a base catalyst N,N-dimenthylbenzylamine, tributylamine, tri-N-propylamine, tri-pentylamine, tripropargylamine, N,N,N-trimethylethylenediamine, or tri-N-hexylamine.

Abstract: A curable composition. The composition contains(A) 100 parts of an oxyalkylene polymer having at least one silicon-containing group containing a hydroxyl group and/or hydrolyzable group bound to a silicon atom and capable of crosslinking through the formation of a siloxane bond;(B) 1 to 150 parts of a high molecular weight and/or high viscosity plasticizer; and(c) 0.1 to 20 parts of a compound having one silanol group per molecular and/or a compound capable of reacting with moisture to thereby form one silanol group per molecule. When an alkyd paint is applied onto the surface of a cured material formed from this curable composition excellent coating properties can be obtained, the other physical characteristics of the cured material being maintained.

Abstract: Provided are 1,5-bis(4-carboxycyclohexyl)-3-pentanol and its esters and processes for their preparation. Also provided are polyester compositions containing this residue, thermosetting coating compositions containing the polyesters, and coatings and casted or molded articles made therefrom.

Abstract: A process for preparing an antirust composition is described, particularly for underbody and already painted and finished motor vehicle parts, having improved physical and mechanical properties, which comprises: (1) preparing a reaction mixture obtained by mixing a preformed product containing an emulsifier, an organic diluent and an inorganic carbonate, with one or more monomers, water and a radicalic catalyst, (2) heating the mixture thus obtained to polymerize the monomer, and (3) further heating to vaporize water, optionally under vacuum, the polymer being formed in situ in the basic gelified composition. A method to provide better rust strength to painted parts or surfaces using the composition thus prepared is also described.

Abstract: An aromatic composition comprises aromatic substances that are encapsulated and/or clathrated in a matrix of polymer. The polymer includes an inorganic polymer produced from metal alkoxides; a conjugated polymer produced from metal alkoxides and silane coupling agents; and a conjugated polymer produced from metal alkoxides, silane coupling agents, and organic monomers. The aromatic composition has slow-release characteristics, so that the aromatic substances are released over a long period of time. In a method for the production of the aromatic composition, a catalyst for sol-gel methods that comprises an acid or its anhydride and an organic base, and if necessary, irradiation with ultraviolet light and/or an electron beam are used for making the polymer.

Abstract: An aromatic composition comprises aromatic substances that are encapsulated and/or clathrated in a matrix of polymer. The polymer includes an inorganic polymer produced from metal alkoxides; a conjugated polymer produced from metal alkoxides and silane coupling agents; and a conjugated polymer produced from metal alkoxides, silane coupling agents, and organic monomers. The aromatic composition has slow-release characteristics, so that the aromatic substances are released over a long period of time. In a method for the production of the aromatic composition, a catalyst for sol-gel methods that comprises an acid or its anhydride and an organic base, and if necessary, irradiation with ultraviolet light and/or an electron beam are used for making the polymer.

Abstract: A molded flexible polyurethane composition having improved polycarbonate compatibility comprising an organic polyisocyanate, a polyol and reactive tertiary amine catalyst. This catalyst contains at least one active hydrogen and/or hydroxyl group in its structure. Another embodiment of this invention relates to a molded flexible polyurethane composition having improved polycarbonate compatibility comprising an organic polyisocyanate, a polyol, a non-reactive tertiary amine catalyst and, an amine scavenger composition which may or may not also contain reactive tertiary amine catalysts. Also disclosed are processes for making said molded flexible polyurethane compositions having improved polycarbonate compatibility.

Abstract: An aromatic composition comprises aromatic substances that are encapsulated and/or clathrated in a matrix of polymer. The polymer includes an inorganic polymer produced from metal alkoxides; a conjugated polymer produced from metal alkoxides and silane coupling agents; and a conjugated polymer produced from metal alkoxides, silane coupling agents, and organic monomers. The aromatic composition has slow-release charactristics, so that the aromatic substances are released over a long period of time. In a method for the production of the aromatic composition, a catalyst for sol-gel methods that comprises an acid or its anhydride and an organic base, and if necessary, irradiation with ultraviolet light and/or an electron beam are used for making the polymer.

Abstract: The invention concerns constrained layer sound damping. A composition and a laminated structure are provided for the reduction of noise coming from housings such as oil pans for automobiles. The composition comprises a rubbery polyurethane, an olefin polymer, and a filler. The laminated structure comprises the housing, the composition, and a sheet metal liner. The composition contains a blowing agent which is activated to provide a single unitary structure which dampens noise. The polyurethane and olefin polymer are thoroughly intermixed with each other, but maintain their separate identities in the blend.

Abstract: This invention relates to the stabilization of polyurethane foam by using a combination of a phenothiazine with at least a co-stabilizing effective amount of a compound selected from the group consisting of certain dithiocarbamates, thiuramsulfides, mercaptobenzothiazole, phosphites, phosphonites, phenolic antioxidants, pentaerythritol-tetrakis(beta-laurylthiopropionate), 4,4'-thiobis(2-t-butyl-5-methylphenol) and mixtures thereof.

Abstract: A plywood-patching composition is provided based on a noncellular polyurethane elastomer prepared by reacting a polyether or polyester polyol with a polyisocyanate in the presence of a catalytic amount of a substantially anhydrous potassium salt of a carboxylic acid having from 2 to about 20 carbon atoms, and process for preparing same. The catalysts utilized are relatively non-toxic, yet they promote rapid polymerization with essentially no foaming for a wide variety of non-cellular polyurethane elastomeric applications, particularly in plywood-patch applications where even small amounts of foaming is deleterious to the properties thereof.

Abstract: An aromatic composition comprises aromatic substances that are encapsulated and/or clathrated in a matrix of polymer. The includes an inorganic polymer produced from metal alkoxides; a conjugated polymer produced from metal alkoxides and silane coupling agents; and a conjugated polymer produced from metal alkoxides, silane coupling agents, and organic monomers. The aromatic composition has slow-release characteristics, so that the aromatic substances are released over a long period of time. In a method for the production of the aromatic composition, a catalyst for sol-gel methods that comprises an acid or its anhydride and an organic base, and if necessary, irradiation with ultraviolet light and/or an electron beam are used for making the polymer.

Abstract: Colloidal suspensions of organopolysiloxanes are prepared by mixing an organosilicon compound selected from the group consisting of mixtures of alkoxysilanes and/or partial hydrolysates thereof and an organo(poly)siloxane which is optionally free of alkoxy groups and contains a maximum of 8 siloxane units, which is mixed with at least one alkoxysilane and/or a partial hydrolysate thereof, with water in the presence of an emulsifier, at a maximum rate of 5 moles of organosilicon compound per hour per liter of water, in which the organosilicon compound and the water is fed continuously, but separately from one another, into a reactor, in which at least one of the two substances contains an emulsifier, while the alkanol is being continuously removed by distillation from the aqueous suspension continuously emerging from the reactor. The aqueous suspension from which the alkanol has been removed by distillation is, if desired, recycled back into the reactor.

Abstract: Novel bismaleimide resin formulations are described which contain olefinic ether reactive diluents. These formulations provide a combination of prepreg processing characteristics and thermal and mechanical properties unavailable from other reactive diluents. Preferred diluents contain one or more alkyl ether groups.

Abstract: A polyurethane emulsion is composed of an organic solvent solution of a polyurethane resin containing silicone segments and/or fluorocarbon segments as backbones and/or side chains and water emulsified in the organic solvent solution. A sheet-like porous material having a porous layer of a polyurethane resin provided on a base material is produced by using the above polyurethane emulsion to form the porous layer.

Abstract: A process for producing a linear polyester comprising a main structural unit of an aromatic dicarboxylic acid ester of an alkylene glycol, particularly, comprising a polyethylene terephthalate or polytetramethylene terephthalate unit, is provided. In the process of the invention, the polycondensation reaction is conducted in the presence of a niobic acid catalyst that is obtained by heat-treating a hydrated niobium compound at the temperature range between 80.degree. C. and 400.degree. C. The process of the invention is also effecitvely applied to the manufacture of an elastomeric polyester comprising a polyalkylene terephthalate as a hard segment and a polyalkylene glycol as a soft segment.

Abstract: Ethylenically-unsaturated ethers of alkenyl phenols are useful as reactive diluents for bismaleimides. Formulations comprising bismaleimides and the reactive diluents of this invention are particularly useful for producing heat and moisture resistant fiber-reinforced composites.

Abstract: Disclosed are aqueous polyacrylate dispersions having improved rheological and stability characteristics prepared by the emulsion polymerization of acrylic esters, methacrylic esters and mixtures thereof in the presence of at least one protective colloid, wherein the improvement comprises conducting the polymerization in the presence of, by weight of the total monomer content, from about 0.1 to 5% of at least one substantially completely water-soluble monomer having conjugated unsaturation. The resultant aqueous polyacrylate dispersions are useful in the manufacture of latex paints, binders for nonwoven materials, water-based inks, paper coatings and water-borne adhesives, such as pressure-sensitive adhesives.

Abstract: A composition for adhering to human nails includes a mixture of a cyanoacrylate compound and/or graphite fibers. Such composition can take the form of either an artificial nail extender or a nail coating. The composition for forming an artificial nail includes graphite fibers, a cyanoacrylate, and a hardening accelerator containing a mixture of trichlorotrifluoroethane and N,N-dimethyl-P-toluidine. The accelerator is adapted to be sprayed onto a base material containing the graphite fibers and cyanoacrylate in the form of a mist. Nail compositions containing graphite fibers have significantly increased strength yet remain flexible to allow for flexure of the nail. The cyanoacrylate compounds increase the chemical bonding of the compositions to a nail.

Abstract: The room temperature-curable organopolysiloxane composition of the invention is characteristic in the remarkably increased adhesive bonding strength of the rubber of the composition to the surface of a substrate of metals, plastics and others on which the composition has been cured. The composition is also advantageous in the improved thixotropy despite the admixture of an adhesion improver mentioned below. Thus, the composition comprises, in addition to conventional components in a deacidification type room temperature curable organopolysiloxane composition, a specific organic silicon compound represented by the general formula(R.sup.3 O).sub.b (MeCOO).sub.3-b Si--O--R.sup.4 --O--Si(OCOMe).sub.3-b (OR.sup.3).sub.b,in which R.sup.3 is a monovalent hydrocarbon group, R.sup.4 is a divalent hydrocarbon group or a polyoxyalkylene group of the formula --C.sub.x H.sub.2x --O).sub.n C.sub.x H.sub.2x --, x being 2 to 4 and n being a positive integer, and b is 1 or 2.

Abstract: Compositions of a vinylized epoxy resin, sized glass fibers and a complexing agent exhibit reduced fiber prominence upon curing with a metal composition than when employing no complexing agent.