Abstract: A novel cross-linked polymer is obtained by cross-linking polyvinyl alcohol with a cross-linking agent which is a mixture of a phenolic component and an aldehyde or a mixture of a naphtholic component and an aldehyde. The resulting polymer is exceptionally thermally stable and, therefore, can be used as an effective permeability control agent in all enhanced oil recovery operations, including steam flooding.

Abstract: A hydrophilic polymer blend is disclosed which comprises a first polymer component which is an organic solvent-soluble, thermoplastic polyvinylbutyral (PVB) and a second polymer component which is a hydrophilic poly(N-vinyl lactam), e.g., a water soluble polyvinylpyrrolidone. The blend demonstrates slipperiness in aqueous environments and, among other applications, is useful in low-friction coatings for a wide variety of substrates. A method for providing the coatings is also described.

Abstract: Cohesive flexible curable adhesive coatings formed from a dispersion of first and second powdered curing components, preferably reactive at ambient temperatures, in a solution of a binder, the binder content being not more than 15%, preferably not more than 2.5% by weight of the dried composition. Also claimed are curable compositions having a specific advantageous reactive particle size distribution; specific epoxy-amine adduct curing agents; and specific polyalkylene oxide binders.

Abstract: A coating binder additive is prepared comprising a blocked glyoxal resin mixed with a vinyl or acrylic water soluble polymer which is reactive with free glyoxal.

Abstract: Blends of poly(ethylenenaphthalene 2,6-dicarboxylate) with olefin/vinyl alcohol copolymers having improved resistance to oxygen permeability are disclosed. Also disclosed are shaped articles such as biaxially oriented containers produced therefrom.

Abstract: Molecularly oriented films are produced which comprise a layer containing a blend of EVOH and nylon. The films exhibit a desirable balance of oxygen barrier and strength properties, and are ideally suited for many packaging applications.

Abstract: The present invention relates to resin compositions and laminates using saponified ethylene-vinyl acetate copolymers containing a polyether component. Formed products and laminates obtained from the resin compositions are flexible, excellent in flexural fatigue resistance and gas barrier properties and extremely useful as flexible laminates.

Abstract: A sonic window suitable for use in sonar applications wherein an elastomer such as natural or synthetic natural rubbers, a low air entrapping fiber or fibril used for reinforcement, fillers, and thermosetting resins are formed into desired window configuration. The low air entrapment associated with the fiber or fibrils produces a remarkably sonicly transparent window.

Abstract: A composition which comprisesa. an aromatic polycarbonate,b. a polyolfefin,c. an ethylene vinyl alcohol copolymer,d. a hydrogenated alkylidene vinyl aromatic block copolymer graft modified with an unsaturated dicarboxylic acid or unsaturated dicarboxylic acid anhydride.

Abstract: A thermosetting size applyable to paper in a size press and curable at a temperature not in excess of about 280.degree. F. for 10 seconds is disclosed. This size comprises an aqueous emulsion comprising water having suspended therein aqueous emulsion copolymer particles of monoethylenically unsaturated monomers comprising hydroxy-functional monomer having an hydroxy number of at least about 20, and the balance of the monomers provides a water insoluble polymer having a glass transition temperature of from about -20.degree. C. to about 50.degree. C. The emulsion has a pH greater than about 2.5, preferably from 4.0 to 7.0, and a stoichiometric deficiency of an aminoplast cross-linking agent is used for cure. An acid curing catalyst is uniformly distributed in the size to speed the cure.

Abstract: A coating composition contains a blend of(a) from about 5 percent by weight to about 35 percent by weight of a hydroxyl functional vinyl polymer having at least 2 percent by weight of hydroxyl groups based on the total weight of the vinyl polymer; and(b) from about 65 percent by weight to about 95 percent by weight of an organopolysiloxane containing hydrolyzable groups prepared by the partial hydrolysis of a compound or mixture of compounds represented by the structural formula R.sub.a SiX.sub.(4-a) wherein:R is hydrogen, alkyl, aryl, alkylaryl, arylalkyl, aryloxyalkyl or haloalkyl;X is halogen, OR.sup.1, ##STR1## or the monohydroxy or cyclic C.sub.2 to C.sub.3 residue of a 1,2- or 1,3-glycol, wherein:R.sup.1 is C.sub.1 -C.sub.3 alkyl,R.sup.2 is hydrogen or C.sub.1 -C.sub.4 alkyl,R.sup.3 and R.sup.4 independently are hydrogen, C.sub.1 -C.sub.4 alkyl or C.sub.6 -C.sub.8 aryl,R.sup.5 is C.sub.4 -C.sub.

Abstract: A moldable resin composition comprising (1) a saponified ethylene/vinyl acetate copolymer having an ethylene content ranging from 20 to 80 mole % and a saponification degree of not less than 90%, and a polyamide resin containing terminal carboxyl (--COOH) and terminal amide (--CONRR') groups, wherein the number (A) of the terminal carboxyl groups and the number (B) of terminal amide groups satisfies the relationship: ##EQU1## wherein (R) is a hydrocarbyl group of 1 to 22 carbon atoms and R' is a hydrogen atom or a hydrocarbyl group of 1 to 22 carbon atoms.

Abstract: Disclosed is an ungelled acrylic resin composition containing an acrylic polymer having in a molecule thereof at least one group containing a silicon atom selected from: ##STR1## wherein each R independently is selected from the group of moieties consisting of Y, hydrogen, a C.sub.1 -C.sub.10 group joined to Si through an Si--C linkage, and OR.sup.7 in which R.sup.7 represents alkyl having at least 4 carbon atoms, aryl, alkylaryl, arylaklyl, aryloxyalkyl, or alkyloxyalkyl, wherein Y represents an easily hydrolyzable group.The acrylic resin composition, contains an amount of easily hydrolyzable Y moieties such that the ratio of the number of grams of the ungelled acrylic resin composition to equivalent of easily hydrolyzable Y moieties in the ungelled acrylic resin composition is in a range of from 40 to 667.

Abstract: An improved wettable creping adhesive comprises an aqueous admixture of polyvinyl alcohol and a water-soluble thermoplastic polyamide resin comprising the reaction product of a polyalkylene polyamine, a saturated aliphatic dibasic carboxylic acid, and a poly(oxyethylene) diamine.

Abstract: A thermoplastic resin composition comprising(1) a thermoplastic resin having an ester structure in the main chain and(2) a hydrolyzed ethylene-vinyl acetate copolymer having an ethylene content of 20 to 60% by mole and a degree of hydrolysis in the vinyl acetate component of at least 95% by mole, and having an ash content of not more than 20 ppm and an alkali metal content of not more than 5 ppm. The composition of the present invention can give molded articles having excellent properties, and is suitable for use as wrapping or packaging materials and engineering plastics.

Abstract: A process for producing novel water-soluble compounds of the formula (HO).sub.m --A--(OCH.sub.2 NR.sup.1 COR).sub.p comprises forming a dispersion of an aqueous solution of a substrate A(OH).sub.n which is an alcohol or, preferably, a carbohydrate and a derivatising reagent HOCH.sub.2 NR.sup.1 COR.sup.2 in a water immiscible liquid and azeotroping the dispersion to remove water and thereby to drive the condensation reaction. The process can achieve high degrees of substitution and is of particular use in the production of water-soluble unsaturated polymersable products, preferably methylol acrylamide derivatives, in a process in which the aqueous dispersed phase contains a water-soluble polymerisation inhibitor. The unsaturated products may be used as cross-linking monomers in many aqueous polymerisation reactions, for instance an aqueous composition containing them with a water-soluble photo-initiator system including a dye are used as curing inks.

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 primer coating composition suitable for coating the inner layers of multilayer boards is disclosed. The cured coating is capable of maintaining adhesion without outgassing for at least 10 seconds at 250.degree. C. It can be adhesion promoted for adherent electroless metal deposition with a chromic acid adhesion promotion solution. The coating composition comprises the product of reacting between 20 to 60% of a poly(vinyl acetal) resin with 80 to 40% of a phenolic resin in the presence of an acidic catalyst and a coupling agent having at least two amino substituted aromatic groups covalently bonded to a titanium or zirconium central atom via an oxygen containing linkage.

Abstract: Aqueous gel-forming compositions are prepared by reacting for 1-10 hours at 50.degree.-95.degree. C., melamine, formaldehyde and a sulfurous acid salt with the optional addition of a gel-modifying agent and/or a gelling agent which is added to the composition immediately prior to use.

Abstract: Incorporation of 0.1-10 weight percent of certain hydroxy containing polymers and/or oligomers into polyacetal molding compositions results in improved thermal stability of such compositions.

Abstract: A composition comprising polyethylene terephthalate which contains up to 10% based on the weight of the polyethylene terephthalate of the reaction product of a low viscosity linear saturated polyester having an intrinsic viscosity of from 0.05 to 0.6 and preferably 0.1 to 0.4 and a compound having at least one functional group selected from the class consisting of anhydrides, epoxides, and hydroxyls.

Abstract: A resin composition of a saponified product of an ethylenic copolymer, which comprises 100 parts by weight of a saponified product of a copolymer of ethylene and vinyl acetate having 5 to 50 mol % of recurring units of --CH.sub.2 --CH.sub.2 -- based on the ethylene monomer and also having a saponification degree of about 80% or more and 5 to 150 parts by weight of a polyamide having a relative viscosity of 2.1 to 3.5 and being subjected to terminal end modification leaving carboxylic end groups of 3.times.10.sup.-5 equivalent/g or less.The resin composition of the present invention has the gas barrier property, rigidity and heat resistance, and also is improved in pinhole resistance or impact resistance, and therefore it can be suitably used as packaging materials or functional parts.

Abstract: A process for producing microspherical cured phenolic resin particles having a particle diameter of not more than about 100 .mu.m, which comprises reacting a novolak resin, a phenol and an aldehyde in an aqueous medium in the presence of a basic catalyst and an emulsion stabilizer. Novel microspherical cured phenolic resin particles are produced by this process. The resin particles have excellent impact strength and mechanical properties, a sharp particle size distribution, and a low secondary agglomerate content, and because of these properties, are useful as an excellent modifier or filler for various plastics and rubbers.

Abstract: An epoxy resin composition for encapsulation of semiconductor device comprises the components (a), (b), (c) and at least one of the components (d) and (e) as shown below:(a) 100 parts by weight of an epoxy resin having at least 2 epoxy groups in one molecule;(b) 8 to 65 parts by weight of a novolak type phenolic resin with an ortho ratio less than 50%;(c) 1.2 to 40 parts by weight of a polyvinyl acetal compound;(d) 0.8 to 30 parts by weight of a silicone oil; and(e) 4 to 80 parts by weight of a rubber-modified phenolic resin.The described epoxy resins composition for encapsulation of semiconductor devices can retain its high glass transition temperature in the cured product and also has low modulus of elasticity, as well as excellent humidity resistance and thermal shock resistance.

Abstract: Ethylene vinyl alcohol copolymer is blended with polyetheramide block copolymer to form a novel composition of matter. The blended composition can be extruded and/or coextruded to make packaging films. In the most preferred embodiments, the blend is contained as one layer in a film comprising a multiplicity of layers, and at least the blend layer is molecularly oriented. Methods of making the films are also disclosed.

Abstract: Disclosed is an ungelled acrylic resin composition containing an acrylic polymer having in a molecule thereof at least one group containing a silicon atom selected from: ##STR1## wherein each R independently is selected from the group of moieties consisting of Y, hydrogen, a C.sub.1 -C.sub.10 group joined to Si through an Si-C linkage, and OR.sup.7 in which R.sup.7 represents alkyl having at least 4 carbon atoms, aryl, alkylaryl, arylalkyl, aryloxyalkyl, or alkyloxyalkyl, wherein Y represents an easily hydrolyzable group.The acrylic resin composition, contains an amount of easily hydrolyzable Y moieties such that the ratio of the number of grams of the ungelled acrylic resin composition to equivalent of easily hydrolyzable Y moieties in the ungelled acrylic resin composition is in a range of from 40 to 667.

Abstract: This invention relates to a water resistant composition which comprises (A) polyvinyl alcohol, (B) a chitosan of which aqueous 1% solution has a viscosity not greater than 70 centipoise at 20.degree. C. and (C) an aldehyde compound, as well as a heat-sensitive recording sheet which comprises said composition. The composition has excellent water resistant properties and the heat-sensitive recording sheet has improved color forming properties and excellent resistance to water and solvents.

Abstract: A room temperature setting adhesive composition capable of giving high initial bond strength as well as cured bonds having good resistance to water and boiling contains, as main components thereof, (A) an emulsion containing an acetoacetylated polyvinyl alcohol and a vinyl acetate copolymer produced by copolymerizing an acetoacetylated, ethylenically unsaturated monomer and another ethylenically unsaturated monomer and (B) a resorcinol resin precondensate and, as a curing agent, (C) hexamethylenetetramine.

Abstract: Disclosed is a metal vessel comprising an upper member and a lower member, each consisting of a coated cup-shaped formed metal body and a circumferential side seam being formed by lap-bonding the open ends of the upper and lower members to each other through an adhesive, wherein said coated cup-shaped formed metal body is composed of a metal blank having a coating of a vinyl chloride resin having a vinyl chloride unit content of 30 to 97% by weight and a glass transition temperature of at least 40.degree. C.

Abstract: A non-asbestos clutch facing has an actual density such that the facing is permeable to air. The clutch facing is preferably a moulded facing containing short reinforcing fibres and having an actual density not greater than 90% of theoretical.The facing may be made by a technique in which a pre-form is prepared, moulded to the desired density and then cured under a pressure such as not to cause substantial further density change.

Abstract: A multilayer composition comprising at least one polycarbonate layer, at least one polyolefin layer, and at least one olefin vinyl alcohol layer, said layers being adhered together by means of tie layers containing a tie material selected from modified polyolefin graft copolymers and olefin vinyl ester copolymers.

Abstract: Low density friction products composed of non-asbestos reinforcing fibers embedded in a matrix of binder material, optionally including friction and wear modifiers, are described in which the actual density of the product is less than 72% of the theoretical density. Clutch facings of this density exhibit improved wear characteristics, lower inertia and increased burst strength.

Abstract: A hydrophilic polymer blend is disclosed which comprises a first polymer component which is an organic solvent-soluble, thermoplastic polyurethane and a second polymer component which is a hydrophilic poly(N-vinyl lactam), e.g., a water soluble polyvinylpyrrolidone. The blend demonstrates slipperiness is aqueous environments and, among other applications, is useful in low-friction coatings for a wide variety of substrates.

Abstract: A phenol-resorcinol-formaldehyde resin and a method for making the same. In this method phenol and formaldehyde at an initial pH of 8.5 to 9.2 are reacted in the presence of a sodium sulfite catalyst. The reaction mixture is heated and refluxed until it has a viscosity of u-v on the Gardner bubble test. Additional resorcinol is added to the mixture and refluxing is continued until it has a viscosity of 30 to 100 Garner sections. The reaction mixture is diluted with a water miscible solvent to obtain a resin solution having a solids content of about 40 to 60 percent by weight and a viscosity of 2.0 to 3.5 poise. An alkali metal carbonate material in the amount of 4 to 8 percent by weight of the resin is added to make adhesives including this resin fast curing. Fumed silica is also added to the resin solution by means of high shear apparatus to make the solution thixotropic.

Abstract: This invention relates to a chemical method of forming an electrically conductive polymer blend which comprises impregnating a non-porous, swellable or soluble host polymer with:(a) one or more cyclic compounds selected from the group consisting of pyrrole, aniline and substituted analogues of said group members, and(b) at least one chemical oxidant selected from the group consisting of trivalent compounds, tetravalent cerium compounds, hexavalent molybdenum, tungsten or chromium compounds, divalent copper compounds, monovalent silver compounds, nitrites, quinones, peroxides and peracids, said oxidant being dissolved in a solvent capable of swelling or solubilizing said host polymer.

Abstract: Polymerizable compositions contain (A) a cationically polymerizable material, such as an epoxide resin, a phenoplast or a cyclic vinyl ether, (B) a hydroxy compound such as styreneallyl alcohol copolymer, and (c) an aromatic iodosyl salt of formula ##STR1## where R.sup.3 and R.sup.4, which may be the same or different, each represent a monovalent aromatic radical having from 4 to 25 carbon atoms, x denotes 1, 2 or 3, and Z.sup.x- denotes an x-valent anion of a protic acid.Suitable salts of formula II include diphenyliodosyl hexafluorophosphate and tetrafluoroborate. The compositions may be photopolymerized or they may be thermally polymerized in the presence, as catalyst for the iodosyl salt, of a salt or complex of a d-block transition metal, a stannous salt, an organic peroxide or an activated .alpha.-hydroxy compound.The compositions may be used as surface coatings and adhesives, and in the preparation of printing plates, printed circuits and reinforced composites.

Abstract: Fibers prepared by spinning, drawing and drying dilute solutions of ultrahigh molecular weight polyethylene or polypropylene are modified by including in the dilute solution a polymeric additive. The polyethylene fibers so prepared have melting points above 140.degree. C. and exhibit improved adherence to matrices, resistance to fibrillation and other advantageous properties. Additives include lower molecular weight polyolefins, oxidized polyolefins, olefin copolymers, polyolefin graft copolymers and polyoxymethylenes.

Abstract: Disclosed is a metal vessel comprising an upper member and a lower member, each consisting of a coated cup-shaped formed metal body and a circumferential side seam being formed by lap-bonding the open ends of the upper and lower members to each other through an adhesive, wherein said coated cup-shaped formed metal body is composed of a metal blank having a coating of a vinyl chloride resin having a vinyl chloride unit content of 30 to 97% by weight and a glass transition temperature of at least 40.degree. C.

Abstract: A solid resin composition useful for coating and bonding, which comprises a carboxyl-modified product of a hydrolyzed ethylene/vinyl acetate copolymer, a carboxyl-terminated saturated polyester resin and a solid epoxy resin with an epoxy equivalent of 80 to 400, each of the component being blended at a specified ratio.The composition, when baked, affords tough coating films or adhesive layers with markedly improved heat and impact resistances in addition to high hardness, strong adherence and high chemical resistance.

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: A reactive hardenable polymer mixture which comprises(A) at least one epoxy compound and(B) at least one polycarboxylic acid compound in the form of a component selected from the group consisting of(a) at least one compound of formula ##STR1## wherein R.sup.1 is a radical derived from at least one polymeric product containing hydroxy groups selected from the group consisting of a polymerization and a condensation product and a combination thereof in the form of polyesters, polymers each having a hydroxy number between 20 and 300, phenol resins having a hydroxy number between 100 and 800 and combinations thereof,R.sup.2 is a radical of an at least tetrabasic cyclic carboxylic acid having at least one COOH-group in an o- or peri-position to the ester bond,R.sup.5 is a radical of an at least dibasic cyclic carboxylic acid having at least one COOH-group in o- or peri-position to the ester bond and R.sup.5 may also be as defined for R.sup.

Abstract: An outside window cleaner comprising mixtures of one or more polyvinyl alcohols with water, or preferably, polyvinyl alcohol, a cationic polymer, such as trimethylol melamine, and water, alters or modifies window or other hard surfaces such that water drains off in uniform sheets, leaving virtually no residue or spots caused from the deposition of dirt, cleaning compositions or a combination of the two. In a further embodiment, a selected cationic or nonionic surfactant is added to the formula of this invention to improve detergency while retaining the uniform drainage advantage in rinsing.

Abstract: Plasticized polyvinyl alcohol containing one or more 1,4-monoanhydrohexitols and/or one or more 1,4-3,6-dianhydrohexitols and its use for the production of composite films by coextrusion, coating, doubling and lamination.

Abstract: A creping adhesive comprising an aqueous admixture of polyvinyl alcohol and a water-soluble, thermosetting, cationic polyamide resin provides increased adhesion in the manufacture of creped wadding.

Abstract: Disclosed is a resin composition excellent in the drawability, which comprises (A) a saponified ethylene-vinyl ester copolymer having an ethylene content of 20 to 55 mole % and a saponification degree of at least 95%, (B) a saponified ethylene-vinyl ester copolymer having an ethylene content of 25 to 60 mole % and a saponification degree of at least 90%, the ethylene content of the saponified copolymer (B) being higher by at least 3 mole % than the ethylene content of the saponified copolymer (A), and (C) a polyamide, wherein the weight ratio of the saponified copolymer (A) to the saponified copolymer (B) is in the range of from 90/10 to 10/90 and the weight ratio of the sum of the saponified copolymers (A) and (B) to the polyamide (C) is in the range of from 95/5 to 5/95.

Abstract: A sealer for solid polyester composition to reduce evolution of vapors at temperature 190.degree. C. or higher for 1 hour or more and to improve the bond at these temperatures with isocyanate polyurethane adhesives, epoxy adhesive or acrylic adhesive, the sealer comprising a mixture of 100 to 1000 parts of phenol-formaldehyde resin, 90 to 110 parts of a polyvinyl acetal resin, 10 to 40 parts of epoxy resin, and sufficient solvent to render the mixture brushable, sprayable or flowable.

Abstract: The invention relates to finely divided polyvinyl acetal which is prepared in the form of an aqueous suspension or, if desired, in powder form, preferably having average particle sizes from 0.5 to 10 .mu.m, from polyvinyl alcohol and at least one aliphatic aldehyde having at least 3 carbon atoms, and which contains 0.1 to 10% by weight, based on polyvinyl acetal, of a completely or partially hydrolyzed vinyl ester copolymer grafted onto polyethylene oxide or polyethylene oxide derivatives and acetalized in the mixture with the polyvinyl alcohol.The invention further relates to a process for preparing finely divided polyvinyl acetals having an average particle size between 0.5 and 10 .mu.

Abstract: A method for the production of melamine/aldehyde filaments by reacting a crystalline melamine and a solid aldehyde generating compound in a single pass reactor and extruding the resultant molten mass through a spinnerette into a reaction chamber maintained under specific temperature conditions and in the presence of air is disclosed.

Abstract: A pellicle for use in projection printing comprises a pellicle in which the transparent film is formed from the novel film forming reaction product of a polyvinyl butyral resin with a silane. Pellicles employing such films are useful in the near, mid and deep UV regions.

Abstract: A powdery coating composition comprising (A) a carboxyl-modified product of a hydrolyzed polymer obtained by hydrolyzing a copolymer derived from a vinyl ester of a saturated monocarboxylic acid and a vinyl monomer polymerizable therewith and (B) a compound having not less than two epoxy groups in the molecule offers extremely tough coating films which are resistant to chemicals, water and salt spray.