Abstract: The present invention relates to a coating composition which contains a one- or two-component binder and, in addition, an adhesion promoter which is based on a chemically modified, amorphous polyolefin having an average molecular weight M.sub.w (weight average) in the range from 10,000 to 100,000 g/mol, a non-uniformity U.sub.n of 1.0 to 6.5, a chlorine content of about 2.5 to 50% by weight and a total content of nitrogen, oxygen, sulfur and silicon, in the form of chemically incorporated functional groups, of about 2.5 to 15.0% by weight.The present invention also relates to a process for coating plastic substrates with this coating composition and to the coated plastic substrates obtained in accordance with this process.

Abstract: Disclosed is a thermoplastic polyurethane resin composition which contains a thermoplastic polyurethane resin (A) and a modified polyolefin resin (B) as its components. The polyurethane resin shows excellent flexibility, smooth touch, and stretching property when molded in the form of films or sheets. It is quite suitable for excretion-treating materials such as a diaper.

Abstract: A non-cellular polyurethane composite material comprising desiccated rubber particles embedded in a non-cellular matrix of polyurethane. Rubber particles derived from tires and other sources are combined with a desiccant to remove moisture present in the particles. The resulting desiccated rubber particles and desiccant are mixed with a polyol and isocyanate to form a precursor blend which is cured to produce a non-cellular polyurethane composite. The resulting rubber-polyurethane composite may be used for tires, shoe and boot soles, surface coatings, and other applications requiring a material which is structurally strong and wear resistant. The desiccated rubber particles may be premixed with the polyol and/or added simultaneously with the polyol and isocyanate during composite molding.

Abstract: A polymer composite comprises about 5 to 95 parts by weight of a copolymer (A) selected from the group consisting of olefin/diene copolymer and ethylene/(meth)acrylic acid ester copolymer, and 5 to 95 parts by weight of a polyurethane resin (B), wherein the polyurethane resin is one which is synthesized in the melted copolymer in the absence of a compatibilizer, a composition for molding comprising such polymer composite and electroconductive fillers and its molded article, and rubber contacts. The polymer composite possesses the flexibility and durability equivalent to those of silicone rubber, has excellent injection molding property, can be made by a short manufacturing process, and can be manufactured inexpensively. The polymer composite of the invention, when used together with an electroconductive filler, is effectively applied as rubber contacts, that is, flexible electric connection members of electric products.

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 invention relates to crosslinking isocyanates for polymeric adhesives containing a mixture of triisocyanatotriphenyl methane and trimerization products of 2,4-tolylene diisocyanate containing at least 50% triisocyanatomonoisocyanurate and less than 1% free tolylene diisocyanate.

Abstract: A water reaction synthesis with polyoxyethylene diol, diisocyanate and dibutyltin bis lauryl mercaptide produces a high molecular weight thermoplastic polyurethane-urea linear polymer with surface resistivity 10.sup.11 -10.sup.6 ohm/sq. Thermoplastic and/or elastomeric antistatic compositions containing other melt processable polymers and/or filler, and the polymer exhibit permanent protection. Antistatic protection can be increased when the polymer complexes with a metal salt such as lithium chloride, or lithium acetate. The composition is useful in the manufacture of antistatic floor coverings and textile texturing and drafting elements such as cots and aprons.

Abstract: ABA triblock polymers, the A block being rigid having a transition away from its rigid phase above 70.degree. C., the B block being wholly or partly ion-coordinating, elastomeric or amorphous, the B/A block length ratio being greater than 1. When the B block is complexed with an ionic salt these polymers act as polymeric electrolytes which may be used in cells etc. Preferred polymers are those where HC.dbd.CH sites in the polybutadiene segment of a polystyrene-polybutadiene-polystyrene polymer are replaced by --CH.sub.2 CH--X--(CH.sub.2 CH.sub.2 O).sub.m --R, where X is link, R is alkyl. A preferred salt is LiCF.sub.3 SO.sub.3.

Abstract: Provided are novel light-absorbing polyurethane compositions and blends of said polyurethane compositions with other thermoplastic polymers. Also provided are shaped or formed articles comprised of the light-absorbing polyurethane compositions and light-absorbing thermoplastic polymer blends.

Abstract: Functional polyolefins containing a terminal functional group; the block copolymers that can be obtained from such polyolefins by reaction with polymers reactive with the functional groups and the precursors used for the preparation of the functionalized polyolefins, which are made of olefin polymers terminated at one end with ZnR groups where R is an alkyl or aryl radical with 1-10 carbon atoms.

Abstract: An adhesive composition which contains two distinct polyurethane prepolymers and a halogenated polyolefin and which is useful for bonding flock fibers to a thermoplastic or an elastomeric substrate. The first polyurethane prepolymer is derived from poly(alkylene oxide) polyols while the second polyurethane prepolymer is derived from poly(alkylene oxide) polyols and a dimer acid polyol. Both of the polyurethane prepolymers are preferably derived from a mixture of poly(alkylene oxide) polyols having different molecular weights.

Abstract: The invention relates to a pressure-sensitive conductive elastomer compound which exhibits high resistance (insulating performance) when it is in non-pressed condition and the resistance of which, as the compound is pressed, varies according to the magnitude of the pressure. The compound comprises a matrix material having insulating and elastomeric properties and baked and carbonized conductive spherical particles of a macromolecular material incorporated and dispersed into the matrix material. The conductivity of the conductive particles varies according to the degree of their carbonization.

Abstract: A quick-setting, moisture-curing hot-melt polyurethane composition having a first polyether-based polyurethane prepolymer having a Tg above room temperature and a second polyurethane prepolymer with a Tg below room temperature, the first prepolymer being prepared from a low molecular weight polyether; preferably the second prepolymer is also polyether based and prepared from a high molecular weight polyether.

Abstract: Stirrable reactive polyurethane adhesive compositions are packaged in a single container by separating the reactive components with a disperable barrier layer so as to delay reaction until the entire adhesive composition is stirred together.

Abstract: Disclosed is a thermoplastic polyurethane resin composition which contains a thermoplastic polyurethane resin (A) and a modified polyolefin resin (B) as its components. The polyurethane resin shows excellent flexibility, smooth touch, and stretching property when molded in the form of films or sheets. It is quite suitable for excretion-treating materials such as a diaper.

Abstract: A primer composition usable for steel sheets and plastic sheets in vehicle bodies consists essentially of a component (A) consisting essentially of at least one resin having a glass transition temperature of not higher than -20.degree. C., preferably not lower than -75.degree. C., and an elongation at break of not less than 400% preferably not greater than 900%, at 20.degree. C. and a component (B) consisting essentially of at least one crosslinking resin, the weight ratio of solid content of (A) to (B) being 70-99:30-1.

Abstract: Novel oxymethylene graft polymers are obtained by grafting a functional compound (i.e., a polymer or compound having one or two hydroxyl, carboxyl, or amine functional groups) onto an oxymethylene backbone having pendant hydroxyl groups which serve as reactive sites for the graft reaction with diisocyanate coupling agents.

Abstract: The addition to urethane prepolymers of low molecular weight polymers formed from ethylenically unsaturated monomers which do not contain active hydrogen provides a hot melt adhesive which can be readily coated at a viscosity of 3000 to 50,000 cps. at 120.degree.C. without the need for additional tackifiers or plasticizers and which has improved initial cohesive strength as well as improved strength after aging of the cured bond. In a preferred embodiment of the invention, the ethylenically unsaturated monomers are polymerized in the non-isocyanate containing components of the isocyanate terminated prepolymer.

Abstract: Crosslinking of rubber having a carboxylic functionality is accomplished by heating the rubber in the presence of an isocyanate functionalized compound and an accelerator which is a metal salt of an organic acid. The crosslinked polymers are useful in a variety of shaped articles, and can be in the form of dispersed particles, in a continuous plastic phase.

Abstract: A primer composition usable for steel sheets and plastic sheets in vehicle bodies consists essentially of a component (A) consisting essentially of at least one resin having a glass transition temperature of not higher than -20.degree. C., preferably not lower than -75.degree. C., and an elongation at break of not less than 400%, preferably not greater than 900%, at 20.degree. C. and a component (B) consisting essentially of at least one crosslinking resin, the weight ratio of solid content of (A) to (B) being 70-99:30-1.

Abstract: A polymeric blend based on vinyl-aromatic polymers having high impact resistance and including a thermoplastic polyurethane, a vinyl-aromatic copolymer containing an ethylenically unsaturated nitrile and a rubber, and a vinyl aromatic polymer, all present in specified amounts.

Abstract: A one-package thermally stable hot melt pressure-sensitive moisture-cure polyurethane composition that can be extruded at elevated temperatures to form a hot melt glue line with very high green strength that can moisture-cure to a strong urethane adhesive bond.

Abstract: Crystalline elastomeric network compositions are transformable from their original cured shape into an altered shape and subsequently back to their original shape. The transformation process, which is repeatable, is effected by the simultaneous application of heat and deformation forces. The amount of heat required, expressed in terms of temperature, is relatively low. The shape-transformable compositions of the present invention are single phase blends of one or more crystalline polymers and one or more elastomer polymers. The compositions generally have a single broad endotherm due probably to the co-crystallization of the different crystalline segments, a low glass transition temperature, and a low transformation temperature, that is generally less than 100.degree. C.

Abstract: Amphiphilic polymers having poly A segments of wide molecular weights, viz., about 2,000 to 50,000, and poly B segments of wide molecular weight of a few hundred to 13,000 or more can be made by reacting without regard to sequence, isocyanate with either a poly A segment or a poly B segment to give an adduct containing free NCO groups on each segment and then react the adduct with the other segment.

Abstract: The present invention is a composite material and a process for making the same. The composite material comprises a thermoset or condensation polymeric material into which has been dispersed high molecular weight polyethylene particles which have been surface treated to have a surface tension of at least 40 dyne/cm at 20.degree. C. The polyethylene particles are dispersed into the thermoset or condensation polymeric material in a concentration range of 2-80 wt % and preferably from 4-66 wt % of the total composite. The resultant composite material exhibits high abrasion resistance and can easily be molded into end products.

Abstract: Novel polyurethane formulations especially useful as membranes for the protection of bridge deckings. The polyurethane is prepared by mixing two components, A and B. Component A comprises castor oil, a low molecular weight polyol having a molecular wieght between 92 and about 200, preferably with an elastomer. Component B is a modified MDI, being either (i) a mix of 4,4'- and 2,4'-isomers of diphenylmethane diisocyanate or (ii) a diphenylmethane diisocyanate and its reaction product with a low molecular weight poly(oxyalkylene).

Abstract: Novel polyurethane formulations especially useful as membranes of the protection of bridge deckings. The polyurethane is prepared by mixing two components, A and B. Component A comprises castor oil modified with a ketone-formaldehyde condensate and also preferably contains an elastomer. Component B is a modified MDI, being a mixture of diphenylmethane diisocyanate and its reaction product with a low molecular weight poly(oxyalkylene).

Abstract: A thermosetting coating composition useful as a primer for metal automobile and truck bodies having excellent chip resistance which contains a binder, a liquid carrier for the binder and pigments; wherein the binder contains(1) a hydroxyl terminated copolymer of styrene/allyl alcohol polymer chain extended with caprolactone;(2) a hydroxy functional polyester urethane and(3) an alkylated melamine resin or blocked poly-isocyanate crosslinking agent.

Abstract: The invention provides for a thixotropic coating composition comprising (1) a binder and (2) a sag control agent which is the reaction product of (a) a symmetrical aliphatic or homocyclic diisocyanate and (b) a monoamine or diamine having at least one primary amino group and ether group, the coating composition containing 0.1 to 30 percent by weight of the sag control agent. The invention also relates to a process for coating a substrate using said coating composition and to the coated substrate thus obtained.

Abstract: Hot melt adhesive compositions combining the characteristics of hot melt adhesives and reactive adhesives can be prepared by blending a thermoplastic polymer, having sufficient structural integrity to provide cohesive strength, with a urethane prepolymer and a tackifying agent. The composition has sufficient green strength to form initial bonds. Additionally, over time, the composition cures to a final rigid, resilient structural adhesive bond.

Abstract: Blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and (b) a thermoplastic copolyester thermoplastic polymer having either linkages in one recurring unit of the polymeric chain, exhibit high surface gloss and improved processability without deterioration in impact strength.

Abstract: Non-miscible blends of (a) a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with (b) a polyvinylidine fluoride polymer of predominantly vinylidine fluoride exhibit improved appearance, melt stability, and impact resistance.

Abstract: Blends of a linear alternating polymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon with a poly(.alpha.-olefin) exhibit improved processability.

Abstract: Polymer blends having a major proportion of a linear alternating copolymer of carbon monoxide and at least one ethylenically unsaturated hydrocarbon and a minor proportion of a copolymer of a vinyl aromatic compound and an alpha,beta-unsaturated cyclic anhydride are provided which demonstrated improved processability and melt stability.

Abstract: Reactive hot melt adhesive compositions combining the characteristics of hot melt adhesives and curing urethane adhesive can be prepared by blending an ethylene-vinyl monomer thermoplastic polymer having sufficient structural integrity to provide cohesive strength with a urethane prepolymer and a tackifying agent. The composition has sufficient green strength to form initial bonds. Additionally, over time, the composition cures to a final rigid, resilient quality structural adhesive bond.

Abstract: A stable, nonreactive, thermoplastic polymer blend comprising from about 10 to about 95 percent by weight of a superabsorbent, thermoplastic polymeric composition and from about 90 to about 5 percent by weight of at least one thermoplastic polymer.

Abstract: A one-package thermally stable hot melt pressure-sensitive moisture-cure polyurethane composition that can be extruded at elevated temperatures to form a hot melt glue line with very high green strength that can moisture-cure to a strong urethane adhesive bond.

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

Abstract: Ground polymer elastomer or other polymeric plastic, particularly from recovered scrap, is surface modified by treatment with a gaseous mixture containing a minor amount of fluorine and a larger amount of at least one reactive gas in an inert gaseous carrier. By the treatment the ground material is made more compatible for admixture with polyfunctional polymer-forming liquids, thereby obtaining novel composites of controlled physical properties. The other reactive gas is preferably oxygen or one of the gases from the group consisting of: chlorine and SO.sub.2 with or without added oxygen.

Abstract: Process for the preparation of interpenetrating polymer network membrane, composed of hydrophilic-hydrophobic two phase structure with varying degree of segregation of the hydrophilic and hydrophobic component by a polymerization reaction comprising controlling the relative rate of polymerization of the component polymers, or controlling the reaction temperature and the reaction pressure during the interpenetrating polymer network forming reaction and particularly by a process which comprises, subjecting a monomeric reaction mixture to a simultaneous polymerization and crosslinking reaction or a sequential polymerization and crosslinking reaction, to produce at least a polymer network of a urethane resin of general formula (I) ##STR1## wherein R.sub.1 is ##STR2## wherein R.sub.3 stands for hydrogen or methyl group, n is integer of 1-3 and m is integer of 5-40,R.sub.2 is either ##STR3## wherein n is integer of 2-8, and styrene resin of general formula (II) ##STR4## wherein R.sub.4 is hydrogen or methyl group.

Abstract: Polyurethanes are prepared from a polyol which itselve contains liquid crystalline moieties or which contains dispersed or dissolved liquid crystalline polymers. The use of this polyol is found to provide improved properties to polyurethanes, especially flexible polyurethane foams, which exhibit improved load bearing.

Abstract: A solution or colloidal dispersion of a polymer of an ethylenically unsaturated steroid derivative in an active hydrogen-containing compound is claimed. The polymer provides improved physical properties to a polyurethane made by reacting the solution or dispersion with an polyisocyanate.

Abstract: The inclusion of a polymer containing rigid moieties in an active hydrogen-containing compound has surprisingly been found to yield significant and unexpected improvements in the physical properties of polyurethane and/or polyurea polymers prepared therefrom. In particular, cellular polyurethane and/or polyureas made from these solutions have excellent firmness and high moduli.

Abstract: A transparent adhesive coating or film based on polyurethane. A polyurethane formed from at least one aliphatic or cycloaliphatic diisocyanate, at least one polyol chosen from among the polyether diols, the polycaprolactone diols, the polycarbonate diols, and the polybutadiene diols, and at least one bifunctional chain-lengthening agent containing an aromatic nucleus.

Abstract: Curable compositions useful as adhesives, coatings and sealants, comprising a mixture of (a) isocyanate-functional prepolymer derived from (i) polyisocyanate and (ii) active hydrogen-containing low molecular weight polymer selected from the group consisting of polytetramethylene oxide polyols, polycarbonate polyols, and polysulfide polythiols, and (b) halogenated resin compatible with said prepolymer, said resin containing about 50 to about 70 weight percent halogen.

Abstract: Substrates of metal, glass, plastic and the like are effectively bonded together with an adhesive composition which is the reaction product of an organic polyisocyanate such as 4,4'-methylenediphenyl diisocyanate, a solution of copolymer of an alkyl ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid and a hydroxyalkyl ester of an .alpha.,.beta.-ethylenically unsaturated carboxylic acid in a polyahl having a molecular weight of 200 or greater such as polypropylene glycol and a low molecular weight polyahl such as ethylene glycol.

Abstract: A polyurethane adhesive comprising(a) a thermoplastic polyester urethane rubber which is grafted with at least one of the compounds selected from the group consisting of acrylic acid, an acrylic ester, methacrylic acid and a methacrylic ester,(b) a chlorinated rubber, and(c) an isocyanate compound as a crosslinking agent, and optionally(d) a polyoxyalkylene ether polyol having 2 or more ether groups in the molecule, and/or(e) a rosin resin and/or a rosin resin derivative,which is an organic solvent solution type, and exhibits excellent adhesion particularly in case that at least one of the substances to be adhered is a soft polyvinyl chloride sheet or film.

Abstract: A stiffening material composed of 30 to 80 weight percent filler particles and 70 to 20 weight percent binder which is thermoplastically deformable and has melt-adhesive properties in the temperature range of 50.degree. to 80.degree. C., wherein the filler particles are plastic particles or particles having plastic surfaces with a particle size distribution of 50 to 500 microns.

Abstract: High strength, light weight composite material, comprising discrete reinforcing elements surrounded by a matrix including polymer micro-bits that are substantially free of the intact cells of the expanded, hydrophobic, thermoplastic polymers from which they are produced, is prepared by hot pressing paper-like elements made using paper making technology.

Abstract: A process for the rapid bulk polymerization of polybutadiene/nylon-6 block copolymers comprises the steps of preparing a mixture comprising from about 100 to about 50 parts by weight of a low molecular weight polybutadiene terminated by an isocyanate or isothiocyanate and end-capped with caprolactam providing a stable imide type terminated polymer, with from about 0 to about 50 parts by weight of a dry non-cold flowing rubber neutralized with caprolactam, charging the polymer mixture without hydrolyzing the end-capped polybutadiene to a reaction vessel with caprolactam and polymerizing the caprolactam at a temperature sufficient to flash off any solvents introduced during the step of preparing to form a block copolymer with the end-capped polybutadiene.