Abstract: Disclosed is a polyamide-imide resin paste which comprises polyamide-imide resin solution dissolved in a non-nitrogen-containing solvent, wherein resin fine particles are dispersed in the solution in an amount of 1 to 50% by weight relative to the resulting polyamide-imide resin paste.According to the present invention, there can be provided a paste which does not cause any clogging of screen due to adhesion of the paste even in repeated printings over a long period of time and shows an excellent mechanical stability of a paste in printing.

Abstract: A water-dispersible graft copolymer of a polyamide and at least one acrylic monomer is prepared by reacting the polyamide with the acrylic monomer(s) in an alcohol solution in the presence of a free radical peroxidic initiator. The graft copolymer is particularly useful as the resin component of a water-based printing ink.

Abstract: A method is provided for the preparation of stable aqueous dispersions of non-solvated, un-neutralized, low amine, low acid number polymerized fatty acid polyamide resins. In the preferred method of this invention, a polymerized fatty acid polyamide resin which has been prepared so as to have a low acid and low amine number is liquified by heating the polyamide resin to a temperature where it is at or above its melting point. The liquified polymerized fatty acid polyamide resin is then blended with a predetermined amount of water which is heated to a temperature such that the resulting blend will have a temperature above the melting point of the polyamide resin. A surfactant which will promote the emulsification of the polyamide resin and water is included in the mixture.

Abstract: A cost effective, efficient thermal insulation composition that will have ng shelf life and withstand severe high temperature and pressure conditions in high temperature solid propellant gas generators can be formed of an ethylene propylene, diene monomer (EPDM)/neoprene rubber binders containing silica powder filler and aramid fibers. The specific chemical constituents include EPDM elastomer, 2 Chlorobutadiene 1,3 elastomer, Silica hydrate, Polymerized Trimethyl Dihydroquinoline, Alkylated Diphenylamines and Diphenyl-p-Phenylendiamene, 40% a,a' Bis (Tert-Butylperoxy), Diisopropylbenzene, Napthenic Process Oil, Synthetic Polyterpene Resin, Aramid Fiber (0.25 inch), and Zinc Oxide, Technical.

Abstract: Filler-containing thermoplastic molding materials having an improved surface and improved coatability contain, as essential components,(A) from 42 to 90% by weight of a thermoplastic polyamide,(B) from 9.5 to 55% by weight of fibrous or particulate fillers or mixtures of these and(C) from 0.5 to 3% by weight of a rubber impact modifier having reactive groups.

Abstract: Dispersions of polymer systems comprising two normally incompatible polymer networks, one of which is held together by physical interactions and the other by chemical cross-links, the networks being catenated, are useful for making coating compositions, films and molded articles.

Abstract: Glutarimide polymers having an acid and anhydride content lower than the acid and/or anhydride content normally present in the glutarimide polymers. Blends of the reduced acid and anhydride glutarimide polymers with thermoplastic materials are disclosed. A process for altering the properties of imide polymers by reducing or substantially removing acid and anhydride levels normally present in the imide polymer is also disclosed.

Abstract: A retainer for a tapered roller bearing comprising a polyamide resin, 10 to 20% by weight of an elastomer and 15 to 30% by weight of a reinforcing fiber.

Abstract: Disclosed is a novel blend of a water-dissipatable polyester material and an acrylic polymer. The acrylic polymer must be compatible with the polyester and can be optionally styrenated. The polyester is exemplified in having an acid component of from about 70 to about 84 mole % isophthalic acid and conversely from about 25 to about 16 mole % 5-sodiosulfoisophthalic acid, and having a glycol component of from about 45 to about 60 mole % diethylene glycol and conversely from about 55 to about 40 mole % 1,4-cyclohexanedimethanol or ethylene glycol or mixtures thereof.The polymer blends are useful for preparing ink compositions having improved block resistance and water resistance.

Abstract: Substances suitable for use as retention agents contain a cationic polyacrylamide with recurrent dialkylaminoalkylacrylamide units and a polyamidamine or a polyamine.

Abstract: The invention relates to thermoplastic molding compounds of reinforced (for example with glass fibers) and/or filled (for example with kaolin) polyamides, interpolymers having a certain chemical composition (of polyamides and thermoplastic copolymers) and, optionally, a rubber modifier which increases the toughness of the molding compounds, and to a process for their production.

Abstract: Disclosed is a thermosetting resin composition comprising (a) a preliminary reaction product between a polyamino compound and an unsaturated bismaleimide compound, (b) an epoxy group-containing vinyl compound, (b') a vinyl group-free aliphatic or aromatic halogenated epoxy compound, (c) an epoxy curing agent and (d) a radical polymerization initiator as indispensable components. This composition is characterized in that the vinyl group-free aliphatic or aromatic halogenated epoxy compound as the component (b') is incorporated. This unsaturated bismaleimide type thermosetting resin composition is excellent in not only heat resistance and strength but also flame retardancy and light weight characteristic.

Abstract: An ink composition comprising a resinous binder comprising a polyamide, a coloring agent, a chlorinated polyolefin and a solvent, with the chlorinated polyolefin comprising from about 3 to about 12 weight percent of the composition. The ink composition is suitable for printing on the low adhesion backsize coating of a pressure-sensitive adhesive tape.

Abstract: There is here provided a thermoplastic resin composition containing(I) 99 to 1% by weight of an ABS resin,(II) 1 to 99% by weight of at least one kind of resin selected from an aromatic polyester resin and a polyamide resin(III) 0.1 to 100 parts by weight, based on 100 parts by weight of the aforesaid resins (I)+(II), of a multi-phase structure thermoplastic resin which is composed of 5 to 95% by weight of an epoxy group-containing olefin copolymer and 95 to 5% by weight of a vinyl polymer or copolymer obtained from at least one kind of vinyl monomer, either of the polymer or copolymer being in the state of a dispersion phase having a particle diameter of 0.001 to 10 .mu.m. A method for preparing the above-mentioned thermoplastic resin composition is also provided here.

Abstract: A polyamide resin composition comprising:(a) 5 to 65% by weight of at least one polyamide resin selected from the group consisting of a polyamide having caproamide units, a polyamide having hexamethylene adipamide units and a polyamide having aromatic rings as a main molecular unit in the polymer,(b) 65 to 30% by weight of a polyamide resin which is obtained by melt polymerization of at least one compound selected from the group consisting of an aliphatic aminoacid and lactum having 11 or 12 carbon atoms and an equivalent molar salt having 13 to 24 carbon atoms of an aliphatic diamine having 6 to 12 carbon atoms and an aliphatic dicarboxylic acid having 6 to 12 carbon atoms, and(c) 30 to 5% by weight of a polyphenylene oxide. This polyamide resin composition is excellent in properties of a thermal resistance, a heating-cooling repeat resistance, a rigidity, a toughness and a road antifreezing agent resistance, and a shaped article of it is useful for an exterior part of automobile.

Abstract: A slurry having an aqueous liquid and dispersed solids may be vacuum filled into an acetylene storage container and indurated to yield a lime-silica matrix with a porosity between about 88 percent to 92 percent. The matrix includes a mixture of aromatic polyamide fibers and oxidized polyacrylonitrile fibers. At least some of these fibers are fibrillated and the fibers are in an amount of about 3.8 wt. % to about 12 wt. % matrix.

Abstract: The invention concerns thermoplastic molding materials comprising a polyphenylene ether, a graft polymer with a hydrocarbon resin as the principal chain and polyphenylene ether side chains, a functionalized polyethylene, a polyamide and optionally other polymers. Molded parts made from these polymer mixtures have improved impact strengths and dimensional stabilities at elevated temperatures.

Abstract: Lubricant systems are provided in which a polyolefin or polyolefin/polytetrafluoroethylene blend functions as a lubricant in a polymer matrix material. The resulting polymer composites containing about 1 to 30 weight percent of the novel lubricant or lubricant blend have greatly improved friction and wear properties, including lower coefficients of friction and increased surface wear resistence. The polyolefin does not remain as discrete, identifiable particles after mixing with the polymer matrix, and has an average molecular weight of less than 500,000.

Abstract: The present invention provides a container made from an aliphatic polyamide, said polyamide containing at least 0.2 wt. % of an additive selected from ortho-phosphorous acid, hypophosphorous acid, alkali metal salts and alkaline earth metal salts thereof. The containers are particularly useful for packaging foods, e.g. frozen dinners. The additive in the container minimizes browning of the container from exposure to high temperatures experienced in conventional ovens.

Abstract: Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether ketone and(C) from 0.1 to 30% by weight of a polymeric component containing hydroxyl groupsand in addition(D) from 0 to 50% by weight of an impact-modifying rubber and(E) from 0 to 60% by weight of fibrous and/or particulate fillers.

Abstract: A halogen-free filled elastomer blend composition, containing at least two elastomers from the group: elastomeric ethylene-propylene copolymers and terpolymers, polyamide elastomers, elastomeric polyesters, isobutylene polymers, polyurethane elastomers, acrylic elastomers, natural rubber, polybutadiene and polyisoprene, as minor components, and a flame-retardant halogen-free inorganic filler as the major component.

Abstract: A thermal transfer recording ink composition comprises a resin having a melting point according to JIS-K0064 of 55.degree. to 110.degree. C. and a solidification point according to JIS-K0064 being at least 50.degree. C. lower than the melting point, resin particles having a size of 0.05 to 2.0 microns and a coloring matter. It is coated on film and used repeatedly.

Abstract: Thermally stable hot applied plastisol compositions are especially useful in the assembly of metal parts. The compositions have adhesive and sealant qualities which allow them to be used in automotive assembly plants. Compositions of the invention comprise as major ingredients finely divided polyvinyl chloride resin, plasticizer, thermoplastic polymeric resin which is solid at room temperature but softens to a flowable state at application temperature, and an adhesion promotion system. Optionally a filler, wax, heat stabilizer, pigment, wetting agent, or mixtures thereof may be added. The individual components work synergistically to get good application properties, metal adhesion, wash-out resistance, and paintability.

Abstract: A sliding material used under a boundary lubricating conditions or mixed lubricating condition, and having improved, wear-resistance, low-friction property, and seizure-resistance, and consisting of (a) 10 to less than 69% of polyimide and/or polyamide-imide, from more than 30 to 68% of graphite, and, 1 to less than 30% of polytetrafluroethylene, MoS.sub.2, Pb, and/or BN, or (b) 20 to 90% of polyimide and/or polyamide-imide, and from 0.5 to 20% clay, mullite, silica, and/or alumina, and at least 5% and balance of graphite.

Abstract: A semiconductor encapsulating material is obtained from a polyimide resin composition comprising (A) a polyaminobismaleimide resin, (B) a silicone monomer and/or oligomer having a hydroxyl or alkoxyl group bonded to a silicon atom and mixtures thereof, and (C) an inorganic filler wherein the weight ratio of polyaminobismaleimide resin (A) to silicone component (B) ranges from 99.5/0.5 to 70/30, and the weight ratio of polyaminobismaleimide resin (A) to inorganic filler (C) ranges from 100/50 to 100/1000.

Abstract: Aramid-reinforced elastomers, including rubber, in which the elastomer is reinforced with aramid in the form of short, discontinuous, fibrillated fibers, are disclosed. The fibers are composed of a trunk portion having a length of about 0.2-5 mm, a diameter of about 0.005-0.02 mm (5-20 micrometers), and an aspect ratio greater than 100, and numerous fibrils extending outwardly from the trunk and having diameters substantially smaller than the trunk diameter. The surface area of the fibers is from about 4 to about 20 square meters per gram, and is about 30 to 60 times the equivalent surface area of fibers in the form of rod having the same diameter distribution as that of the trunks of the fibers herein, but with no fibrils. The fibers are oriented. Incorporation of the fibers results in substantial increase in stiffness and modulus. Loading of aramid fibers is typically about 0.2-20 phr.

Abstract: A coating composition contains:(a) a waterborne film-forming polymer; and(b) a stable, liquid nonaqueous polymer microparticle dispersion characterized in that the nonaqueous dispersion, when independently spray applied, is capable of forming discrete, particle agglomerates upon volatilization of its nonaqueous medium, the components (a) and (b) being present in amounts effective to provide that the coating composition is a stable, multiphase composition.

Abstract: A process for preparing a predispersed fiber composition useful for dispersing discontinuous fibers into a rubber or plastic polymer compound is disclosed which comprises mixing at least about 15 percent by weight of a pourable binder composition with up to about 85 percent by weight of discontinuous fibers at a temperature of from about 40.degree. C. to about 150.degree. C. until a homogeneous predispersed fiber composition is obtained. The binder composition comprises from about 50 to 100 percent by weight of a rubber or plastic polymer, from 0 to about 50 perecnt by weight of a plasticizer or peptizer for the polymer, and from 0 to about 45 percent by weight of critical chemical additives, and is pourable at ambient tmeperature or becomes pourable upon being heated to a temperature of up to about 135.degree. C. and has a Brookfield viscosity of less than about 1,300,000 centipoises at the temperature at which it is pourable.

Abstract: A polypropylene resin composition is provided by incorporating a metal salt of a fatty acid and the oxide or hydroxide of an alkaline earth metal, each, in an amount of 0.05-1 part by weight based on 100 parts by weight of polypropylene. The polypropylene resin composition shows excellent thermal processing stability even when subjected to remelting and extrusion molding after mixing of a scrap recycled from the production of multi-layered containers or sheets each of which is formed of a gas barrier layer made of nylon or an ethylene-vinyl alcohol copolymer and another layer made of a polypropylene resin composition.

Abstract: The mechanical properties of polyphenylene ether - polyamide mixtures are improved by the addition of an oxidized polyolefin wax. In addition, a phosphite is preferably added.

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: Polymer concretes having a high bond strength and/or long working times are made from a curable composition of norbornyl modified unsaturated polyester or polyesteramide resins blended with a polymerizable monomer such as styrene, an aggregate mixture such as sand and gravel and an effective amount of styrene acrylonitrile copolymers, styrene alphamethylstyrene copolymers, or a styrene acrylonitrile copolymer mixture with no more than 25% by weight polystyrene.

Abstract: An aqueous, cationically electrodepositable coating composition contains a ternary sulfonium or quaternary phosphonium group containing resin, an aminoplast or phenoplast crosslinking agent and a catalytic amount of a non-ionic ester of a sulfonic acid as latent acid catalyst to catalyze the reaction between the sulfonium or phosphonium group containing resin and the aminoplast crosslinking agent.

Abstract: The processability of blends of linear polyolefins (particularly HDPE or LLDPE) and condensation polymers (particularly nylon) into extrudates is improved by the addition of small amounts of a fatty acid derivative such as fatty acid amide. The addition of fatty acid derivative results in reduced extruder torque and gives extrudates with smoother surfaces.

Abstract: It has now been found that a unique combination of additives makes mineral-reinforced semi-crystalline polyamides readily processible by extrusion blowmolding to make hollow, stiff parts of various shapes. The compositions consist essentially of semicrystalline polyamide, 15-50 weight percent mineral filler reinforcing agent; 1-25 weight percent of an ionic copolymer of at least one alpha-olefin and at least one alpha, beta-unsaturated carboxylic acid in which the acid moiety is partially neutralized with metal ions, and 0.1 to 3 weight percent of fibrillar fluoropolymer resin. Percents are by weight of compositions.

Abstract: A salt resistant composition comprising a polyamide selected from the group consisting of: polyepsiloncaprolactam, polyhexamethylene adipamide; copolymers of caprolactam, hexamethylene diamine, and adipic acid; and mixtures thereof. The composition contains from 2 to 30 percent, and preferably 4 to 30 percent based on the weight of the polyamide of a water insoluble plasticizer, and a copolymer of an alpha-olefin and an unsaturated carboxylic acid and derivatives thereof. The plasticizer has been found to enable the polyamide composition to maintain its flexibility upon exposure to a variety of salts. Preferred plasticizers include lauryl lactam and sulfonamides. Preferred are sulfonamide type plasticizers such as n-ethyl; o,p-toluenesulfonamide; o,p-toluene sulfonamide, and toluene sulfonamide formaldehyde resin. The invention includes articles made from the composition.

Abstract: Thermoplastic molding materials contain, as essential components,(A) from 2 to 97.9% by weight of a nylon,(B) from 2 to 97.9% by weight of a polyaryl ether sulfone(C) from 0.1 to 30% by weight of a polymeric component having hydroxyl groupsand in addition(D) from 0 to 50% by weight of a rubber impact modifier and(E) from 0 to 60% by weight of reinforcing fillers.

Abstract: A hotmelt adhesive comprising a compatible mixture of at least one polyamide based on dimeric fatty acid, and at least one copolymer or terpolymer based on ethylene, a method for manufacturing the same, and a method for using the same to adhere plastics and metals.

Abstract: Nylon granules are based on(A) from 20 to 99.99% by weight of a nylon,(B) from 0 to 60% by weight of fibrous or particulate fillers or a mixture thereof and(C) from 0 to 40% by weight of an impact modifying rubber and contain(D) from 0.01 to 1% by weight of an outer shell consisting of a mixture of(d.sub.1) zinc stearate or aluminum stearate or a mixture thereof,(d.sub.2) calcium stearate and(d.sub.3) an ester of an aliphatic carboxylic acid of 6 to 24 carbon atoms with an aliphatic saturated alcohol of 2 to 24 carbon atoms.

Abstract: Into a material based on a caoutchouc-type or caoutchouc-containing mixture for producing hard rubber, there is incorporated a pre-mix containing high-strength organic fibers and a liquid hardenable plastic material. The high-strength and temperature resistant material thus obtained is particularly suitable for the attenuation of noise in combustion engines when heavy-weight fillers are also added to such material. Engine components like, for example, valve covers, timing gear covers and oil pans can be manufactured from this material.

Abstract: Chlorinated polyvinyl chloride when blended with sulfur is often miscible and has reduced melt flow viscosity. Various metal carbonates impart improved stability and optionally various fibers can be utilized to increase the tensile strength of the composition.

Abstract: A salt resistant composition comprising a polyamide selected from the group consisting of: polyepsiloncaprolactam, polyhexamethylene adipamide; copolymers of caprolactam, hexamethylene diamine, and adipic acid; and mixtures thereof. The composition contains from 2 to 30 percent, and preferrably 4 to 30 percent based on the weight of the polyamide of a water insoluble plasticizer, and a copolymer of an alpha-olefin and an unsaturated carboxylic acid and derivatives thereof. The plasticizer has been found to enable the polyamide composition to maintain its flexibility upon exposure to a variety of salts. Preferred plasticizers include lauryl lactam and sulfonamides. Preferred are sulfonamide type plasticizers such as n-ethyl o,p-toluenesulfonamide; o,p-toluene sulfonamide, and toluene sulfonamide formaldehyde resin. The invention includes articles made from the composition.

Abstract: Resin bearing material consists essentially of at least one thermoplastic resin material selected from the group consisting of polyacetal, polyamide, polycarbonate, polyphenylene sulfide, polyethylene terephthalate, and ultra-high molecular weight polyethylene, and of aromatic group, polyamide fiber, and is produced by the steps comprising kneading and extruding said at least one thermoplastic resin material and the cutting the extruded material.The sliding characteristics are superior to the conventional oleo-bearing materials containing the carbon fiber, and glass fiber.

Abstract: An oriented thermoplastic elastomer comprising an elastomer, EVA, and process oil is prepared by stretch orienting the film at an elevated temperature and annealing the film to freeze in stresses and strains in the film. In one embodiment, the thermoplastic elastomer is provided with a thin coating of a thermoplastic to provide nonblocking.

Abstract: A composition for the sliding member consisting of: at least one resin of the amount 0.1 to 50 volume % selected from group (A) consisting of tetrafluoroethylene-perfluoroalkylvinyl ether copolymer resin, tetrafluoroethylene-hexafluoropropylene copolymer resin and fluoroethylene propylene ether resin; at least one resin of the amount 0.1 to 50 volume % selected from group (B) consisting of oxybenzoylpolyester resin, phenylene sulfide polymers resin and thermosetting resins; and the balance substantially tetrafluoroethylene resin, the total amount of the constituents other than the tetrafluoroethylene resin being 0.3 to 70 volume %.

Abstract: An acrylic modified styrenic/N-arylmaleimide copolymer containing composition which exhibits excellent melt flow properties, impact strength and gloss upon molding is disclosed.

Abstract: The detrimental effects of reinforcing fibers on the differential shrinkage and warpage characteristics of thermoplastic resins are substantially reduced by the incorporation of a silicone interpenetrating polymer network in fiber reinforced thermoplastic composites. High modulus (flexural modulus greater than 90,000 psi) thermoplastic matrices containing about 5 to 60 weight percent reinforcing fibers and 1 to 20 weight percent of a silicone IPN have reduced shrinkage and warpage and more isotropic mold shrinkage than conventional fiber reinforced thermoplastics, and are particularly useful in the melt forming of high tolerance parts, such as gears, as well as thin walled, variable thickness and thick cross section parts.

Abstract: A bonded fibre insulation batt is produced by ragging, teasing and otherwise doffering fibres of wool and/or synthetic or other natural fibres such as monoacrylic, acrylic, polyamide, polyester or cotton fibres, so as to form a sliver with said fibres randomly dispersed. The sliver is passed through a lapper which causes the sliver to lap on itself to form a mat of desired thickness. The sliver is sprayed with a resin emulsion prior to lapping so that the mat produced is throughly impregnated. The resin emulsion can include a fireproofing resin, and preferably a pesticide and a smoke retardant. The impregnated mat passes to a dryer to remove a substantial part of the water content thereof with minimal heating of the fibres. Following the water removal the mat passes to an oven to cure the resin thus forming the insulating batt which can be cut to desired size.

Abstract: Pulverulent red phosphorus stabilized with zinc fluoride and the use thereof as flame-retarding agent to thermoplastic moulding compositions.

Abstract: An in situ polymerization process is disclosed whereby an .alpha.-amino acid N-carboxyanhydride is blended intimately and efficiently with one or more calcium phosphate biomaterials. The polymerization proceeds at ambient temperature and pressure without the need for initiators or surface modification of the calcium phosphate biomaterials. The resulting composite material may subsequently be ground and blended with a compatible water soluble pore-forming agent and then molded to form dense, shaped objects which may be made porous by leaching out said water soluble pore-forming agent. The resulting shaped objects may then be used as hard tissue prosthetics either alone or in conjunction with conventional prostheses.