Abstract: A process is disclosed for producing molded parts from a polyester-based curable molding composition which includes a thermostetting unsaturated polyester resin, an ethylenically unsaturated monomer which is copolymerizable with the unsaturated polyester resin to provide crosslinking, a thermoplastic low profile additive material for shrinkage control and in addition, at least one highly reactive olefinically unsaturated crosslinkable monomer, this highly reactive olefinically unsaturated material being selected from the group consisting of:a) the di-acrylate or methacrylate of a diol selected from the group consisting of hexane diols, neopentyl glycol, butylene glycol, diethylene glycol, tetraethylene glycol, and tripropylene glycol;b) the tri-acrylate or methacrylate of trimethylol propane;c) the tetra-acrylate or methacrylate of pentaerythritol;d) the di-acrylate or methacrylate of an ethoxylated Bis Phenol A;e) the acrylate or methacrylate of isobornyl alcohol; andf) divinyl benzene.

Abstract: The invention relates to a polyamide substrate with a high concentration of amine groups, and a method of transferring biological materials by adsorption onto said substrate.

Abstract: The present invention concerns the polyolefin resin compositions wherein acrylic oligomers, polydiene and chlorinated polyolefins which contain 10-60 weight % chlorine are graft copolymerized. Films of the polyolefin resin compositions have good adhesive properties, moisture-resistant properties and appearance.

Abstract: Polyolefin type coating resin compositions obtained by copolymerizing acrylic type oligomers, polydienes, acrylic type monomers and chlorinated polyolefins containing 10-60 weight % chlorine in the existence or the absence of the Hardener. The obtained copolymers are used for coatings, printing inks or adhesives applying as one coat finish or primer to give excellent coating films of adhesive property, solvent resistance and the appearance.

Abstract: The present invention is directed to a polymeric isocyanate modified epoxy blocked sulfonic acid ester as a catalyst for the crosslinking of polymers having hydroxyl, carboxyl, and amide functional groups with a crosslinking agent and resin compositions containing the same. More particularly, the present invention is directed to a polymeric isocyanate modified epoxy blocked sulfonic acid ester with a molecular weight of about 1000 preferably prepared from a sulfonic acid, an epoxy resin and a mono- or di-isocyanate and resin compositions containing the polymeric isocyanate modified epoxy blocked sulfonic acid ester catalyst. The catalyst when used in the crosslinking or curing of hydroxyl, carboxyl or amide containing polymers with an acid catalyzed amino-formaldehyde crosslinking agent, such as hexamethoxymethylmelamine ("HMMA"), produced polymeric film coatings which have superior hardness, impact resistance, adhesion, improved blister resistance, salt spray characteristics and flexibility.

Abstract: Disclosed is a thermosetting resin composition which includes(a) an unsaturated polyester,(b) a polymer having a (meth)acrylate group only at one or both terminals of its main chain,(c) a poly(meth)acrylate oligomer,(d) a styrene monomer, and(e) a methyl methacrylate monomer.Also, a method of molding the resin is disclosed, which includes dividing the thermosetting resin composition into two parts, adding a curing agent to one of the two parts and a curing accelerator to another to form two partial compositions, introducing the two partial compositions into a mold, and allowing the two partial compositions to mix with each other and cure.

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 thermosetting adhesive comprising a bismaleimide compound and an isocyanate-terminated rubber polymer adapted to coreact upon heating is applied to substrate surfaces of a cured polyurethane and an uncured rubber compound. Upon heating, the adhesive crosslinks and the uncured rubber compound is preferably cured simultaneously. The adhesive is particularly useful in the fabrication of compositions by the bonding of cured polyurethane to an uncured rubber compound which becomes cured during the bonding process, such as in the construction of tires containing cured polyurethane reinforcements within uncured rubber carcasses, the retreading of tires containing polyurethane repairs, etc.

Abstract: A graft copolymer produced by polymerizing an ethylenically unsaturated monomer in the presence of a fluorine-containing resin having reactive double bonds via a urethane linkage is excellent in transparency and pigment dispersibility and can provide a coating composition excellent in weather resistance.

Abstract: Moisture-hardening joint sealing compositions based on polyurethane prepolymers, swellable polymer powders, plasticizers and other auxiliaries have increased stability in storage when they contain C.sub.8 -C.sub.20 olefins as stabilizers.

Abstract: A thickened moulding composition comprises fibrous reinforcement, an ethylenically unsaturated polymer, a monomer copolymerizable therewith and a crystalline unsaturated polyester having a glycol component derived from at least two symmetrical glycols.Preferably, the crysatlline polyester has a molecular weight per double bond of no more than about 210 and a melting point of from 50.degree.-115.degree. C.

Abstract: Curable compositions which comprise:(i) an acid-functional compound having an average of at least two carboxylic acid groups per molecule; and(ii) an anhydride-functional compound having an average of at least two cyclic carboxylic acid anhdyride groups per molecule; and(iii) an epoxy-functional compound having an average of at least one epoxy group per molecule; and(iv) a hydroxy-functional compound having an average of at least two hydroxyl groups per molecule;wherein at least one of the compounds (i), (ii), (iii) or (iv) comprises a film forming polymer.

Abstract: Described herein are curable molding compositions comprising a mixture of:I. from about 25 to about 90 weight percent of a thermosetting resin containing:(a) from about 5 to about 95 weight percent of a polyester resin derived from the reaction of a poly(acrylate) and a vinyl monomer, said poly(acrylate) and vinyl monomer essentially free from functional groups reactive with the polyol or the polyisocyanate of (b);(b) from about 95 to about 5 weight percent of a polyurethane derived from the reaction of a saturated polyol and a polyisocyanate, said polyol and polyisocyanate free from unsaturated groups capable of copolymerizing with the poly(acrylate) or vinyl monomer of (a); andII. from about 75 to about 10 weight percent of one or more fibers with a melting point or a glass transition temperature above about 130.degree. C.; wherein (b) constitutes less than 40 weight percent of (I) and (II).

Abstract: A two-part, heat stable, peroxide-free adhesive that can be mixed in equal parts with rapid cure for the bonding of plastics and metals has been discussed. Part A of the adhesive contains a polymeric material, an olefinically unsaturated monomer, an acid material, a compound containing a sulfonyl halide group, and a compound containing a transition metal; and Part B contains a polymeric material (preferably a phenoxy resin) and monomer of the same class and a Zn, Cu or Cd metal powder.

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: Disclosed are novel polymer/polyisocyanate compositions. The compositions are prepared by the in-situ polymerization of at least one ethylenically unsaturated monomer in an organic polyisocyanate and in the presence of an adduct formed from the reaction of an excess of a carbodiimide-free polyisocyanate and a hydroxyl containing ethylenically unsaturated monomer.The graft polyisocyanates find particular utility in the making of molded polyurethane resins.

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: Disclosed is a composition for manufacturing one-piece golf ball cores having improved coefficient of restitutions. The composition comprises an elastomer cross-linkable with a free radical initiator catalyst, a metal salt of an alpha, beta, ethylinically unsaturated monocarboxylic acid such as zinc di or mono acrylate or methacrylate, a free radical initiator catalyst, and a polyfunctional isocyanate, preferably a diisocyanate such as 4,4' diphenylmethane diisocyanate, or a polymer thereof.

Abstract: Vinyl urethane composite polymers having improved impact strength are prepared by reacting a polymer polyahl containing dispersed soft polymer particles, a polyisocyanate and a vinyl monomer.

Abstract: The preparation of a homogeneous solution of a polyol having Formula I or II or mixtures thereof ##STR1## wherein R represents a saturated or unsaturated alkyl group having from 1 to 20 carbon atoms, a saturated or unsaturated alkaryl group having from 7 to 20 carbon atoms, or an aryl group having from 6 to 12 carbon atoms and R' independently represent an alkylene group having from 1 to 4 carbon atoms or an alkylene ether group having from 2 to 50 carbon atoms with an esterol which is a linear oligomeric polyester backbone terminated at one end with a hydroxy group and at the other end with a vinyl group is described.

Abstract: A shapable and photogellable liquid or fluid polyvinyl chloride composition comprising a blend of polyvinyl chloride with sufficient plasticizer and about 13 to 50 parts per hundred of a photopolymerizable polymer to give a liquid or fluid composition. Preferably said composition may contain a photoinitiator and a polyvinyl chloride stabilizer.

Abstract: A process for modifying the surface of a preformed polymeric substrate to impart lubricity and other desired properties thereto, without at the same time significantly altering the bulk properties of the substrate, by epoxidizing the substrate's surface and reacting the epoxide groups so formed with a fluorocarbon capable of cleaving the epoxide rings and covalently bonding thereto. The article so formed is also disclosed.

Abstract: There is provided a modified two-part type adhesive composition comprising liquid I composed of an acrylic monomer, an organic peroxide, and, if necessary, a gelation stabilizer and liquid II composed of an acrylic monomer, a curing accelerator, and, if necessary, a gelation stabilizer, at least one of the liquids containing a modified nitrile rubber in an amount of 2 to 50% by weight, and said modified nitrile rubber having carboxyl groups and the carboxyl groups being bonded to a (meth)acrylic group-containing acid phosphate through partially a covalent bond and partially an ionic bond.

Abstract: This invention relates to radiation hardenable primers based on prepolymers containing (meth) acryloyl groups and conventional auxiliary agents. The primers are characterized in that they contain organic and/or inorganic fibres having a fibre length distribution curve reaching its maximum in the region of from 50 to 600 .mu.m. These primers are suitable for coating articles which have absorbent surfaces, in particular for the continuous coating of wood-concrete articles such as wood-concrete boards.

Abstract: Novel structural adhesives for bonding metals and plastics are disclosed. The adhesives, comprising a solution or dispersion of a polymeric material, a monomer which is copolymerizable with such polymeric material and phosphorous-containing compounds are characterized by improved performance at elevated temperatures and excellent resistance to thermal degradation.

Abstract: Phenolic resin compositions comprising a polymeric substance having a phenolic OH group such as phenol resins, and a rubber having an epoxy group and an epoxy equivalent of 500 to 30,000 such as butadiene copolymers, acrylic copolymers, chloroprene copolymers and urethane copolymers are provided. These resin compositions exhibit improved properties having overcome the drawback of brittle properties intrinsic of conventional phenolic resins, and also exhibit cold resistance; hence they are used as molding materials, laminating materials, casting materials, binders, etc. Further, molding resin compositions having improved solvent-resistance and metal insert properties are provided.

Abstract: A method for producing a prepreg roving, which comprises impregnating a composition comprising an unsaturated polyester, an unsaturated monomer and a polyisocynate compound in a filamentary reinforcing material, and then heating the impregnated reinforcing material to react the unsaturated polyester with the polyisocyanate compound; and a method for producing a fiber-reinforced plastic article, which comprises disposing prepreg rovings (A), said prepreg rovings being prepared by the above method between at least two plies of sheet molding compound (B) obtained by impregnating a composition comprising an unsaturated polyester and an unsaturated monomer in glass fibers and forming the impregnated product into a sheet; and consolidating the resulting assembly under heat and pressure.

Abstract: Footwear compounds containing star-block copolymers having functional groups associated with the nucleus of the copolymers have been prepared. The copolymers of from 10-55% by weight of a monovinyl aromatic compound and 45-90% by weight of a conjugated diene have at least 3 arms connected to a polyvinyl aromatic nucleus and up to the same number of polar functional groups attached to said nucleus as there are arms attached thereto.

Abstract: Modified olefine polymers of 20 to 98 parts by weight of an olefine homopolymer or copolymer and 0.5 to 80 parts by weight of a polymer containing aliphatic polyester blocks, which polymers are chemically linked through 0.5 to 40 parts by weight of a polymer of a monomer containing olefinic double bonds, a method for their manufacture, and their employment as moulding compositions.

Abstract: Phenolic resin compositions comprising a polymeric substance having a phenolic OH group such as phenol resins, and a rubber having an epoxy group and an epoxy equivalent of 500 to 30,000 such as butadiene copolymers, acrylic copolymers, chloroprene copolymers and urethane copolymers are provided. These resin compositions exhibit improved properties having overcome the drawback of brittle properties intrinsic of conventional phenolic resins, and also exhibit cold resistance; hence they are used as molding materials, laminating materials, casting materials, binders, etc. Further, molding resin compositions having improved solvent-resistance and metal insert properties are provided.

Abstract: A compatible, gellable, dual resin system useful for impregnating porous spacers between stator end windings of turbine generators is made from (A) a liquid diallyl isophthalate component comprising an admixture of liquid diallyl isophthalate monomer and solid diallyl isophthalate prepolymer, where the weight ratio of monomer:prepolymer is between about 1.5:1 and about 3.0:1, (B) an amount of chain forming isocyanate terminated polyurethane prepolymer effective to provide a chain network which physically interpenetrates the liquid diallyl isophthalate component, and prevents free flow of liquid diallyl isophthalate component, (C) a chain extender for the isocyanate terminated polyurethane prepolymer, and (D) a catalyst for the diallyl isophthalate component, where the resin system is curable with the application of heat.

Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is an aliphatic hydrocarbon resin.

Abstract: Fully cured calcium carbonate filled polyisocyanurate/polyurethane sheet molding compositions are improved in blister resistance at temperatures of 175.degree.-205.degree. C. by the incorporation therewith of from 0.05-2% based upon the weight of the carbonate of a polybutadiene telomers maleic anhydride addition products. Such compositions are most blister resistant when the polybutadiene telomer/maleic anhydride addition product is mixed with the resin ingredients prior to the addition of carbonate filler.

Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is an alpha-methylstyrene/vinyl toluene copolymer.

Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is an aromatic hydrocarbon resin.

Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is a terpene resin.

Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is a polystyrene resin.

Abstract: Hot melt adhesive compositions are provided which contain (a) about 10-30 weight % of an alkenyl succinic anhydride, (b) about 20-60 weight % of an ethylene copolymer, and (c) about 10-40 weight % of a tackifying resin which is a terpene-urethane resin.

Abstract: A polymerizable adhesive and sealant composition comprising a urethane-acrylate-capped prepolymer based on a polybutadiene polyol or polyamine having at least about 70 percent of the butadiene units in the 1,4-configuration. The composition provides improved thermal, impact and cure-through-gap properties. A process for preparing the composition and a process for using it are also disclosed.

Abstract: A co-crosslinkable blend composition which comprises an iodine-containing fluoroelastomer, an elastomer crosslinkable in the presence of a peroxy radical and an organic peroxide.

Abstract: A graft copolymer having a polymeric backbone with pendent hydroxyl groups; wherein the hydrogen atom of at least the one the hydroxyl groups is replaced by the formula ##STR1## where R is an aliphatic group, a cycloaliphatic group or an aromatic group; R.sup.1 is an alkylene group having 2-6 carbon atoms; R.sup.2 is a polymer segment of a vinyl addition polymer, such as butyl acrylate/hydroxyethyl acrylate; coating compositions of this copolymer can be cross-linked with conventional cross-linking agents such as an alkylated melamine formaldehyde resin or an organic polyisocyanate and coating compositions useful for flexible elastomeric substrates can be prepared from this copolymer.

Abstract: An ungelled composition of matter comprising a compound containing groups reactive with isocyanate, a compound containing groups reactive with mercaptan, and a carbamothioate curing agent adapted to generate a plurality of curing units upon being subjected to heating above about critical temperature. The generated curing units contain isocyanate groups, mercaptan groups, or combinations thereof. In preferred embodiments of this invention, the ungelled composition is adapted for use in powder coatings, anodic electrocoating, and cathodic electrocoating.

Abstract: Fully cured reinforced molded resins such as polyesters, polyurea urethanes, polyureas, polyurethanes, polyisocyanurates, polyepoxies and polycarbonate resins can be in-mold coated to cover surface defects such as sink marks and microcracks with an improved coating composition comprising reactive liquid polymers, a vinyl monomer, and certain cross-linkable unsaturated ester resins as co-polymers.

Abstract: The present invention relates to a special copolymer solution consisting of acrylic resin containing 70 to 90% by weight of copolymer solids and 10 to 30% by weight of solvent. The invention also relates to a process for the manufacture of the copolymers which are present in the copolymer solution; additionally, the invention relates to the use of the copolymer solution for the manufacture of coating compositions for lacquer systems of low solvent content which contain polyisocyanates and which contain the copolymer manufactured according to the invention as a resin component which carries hydroxyl groups.

Abstract: Process for producing elastomer materials which are abrasion resistant in the heat, based on polyurethanes and polyoxides, by reacting aliphatic or aromatic diisocyanates, low molecular polydiols or polydiamines and hydroxyl-containing polyesters or polyethers with a molecular weight between 800 and 5000, especially between 2000 and 3000, in equimolar quantities and in liquid phase, characterized by performing the reaction in the presence of rubber powder having diene units incorporated therein, the powder being dispersed in the reaction mass in an amount of 20%-50% by weight, the reaction being carried out in the presence of sulfur or a peroxide, and the rubber powder having a particle size between 5 and 500.mu., the polyurethane reaction mass having a surplus of double bonds capable of cross-linking and casting the elastomer so produced from the liquid mass into molds. Tires made from the elastomers according to the invention are of excellent properties in their tread surfaces.

Abstract: Molding compositions comprising a "terminally unsaturated"polyurethane, a copolymerizable vinyl or vinylidene compound and a rubbery-elastic polymer having a glass transition temperature of between -90.degree. and +10.degree. C. can be used for the preparation of molded articles having a considerably increased impact strength and a good heat distortion temperature, strength and rigidity.

Abstract: A laminate comprises an adherent in-mold thermoset coating composition on a thermoset polyester glass fiber substrate, the coating composition comprising essentially the reaction product of an unsaturated aliphatic fumarate polyester diol, a saturated polyester diol flexibilizer, a cross-linking aliphatic polyol having from 3 to 6 OH groups, a diisocyanate in an amount by weight sufficient to provide from about 50 to 120%, preferably from about 80 to 99%, of the stoichiometric amount of --NCO groups required to react with all of the active hydrogen atoms in the coating composition and an ethylenically unsaturated monomer sufficient to polymerize with and crosslink the unsaturated polyester in admixture with a minor amount by weight of polyvinyl acetate which serves to reduce or eliminate shrinkage of the coating composition.

Abstract: A two-phase bead polymer having an average bead diameter of from 10.mu. to 150.mu. comprising(A) 88% to 99.5% by weight of a polymer of polymerized units of at least one methacrylic acid ester containing from 1 to 10 carbon atoms in the aliphatic, saturated alcohol component; and(B) 0.5% to 12% by weight of a polyurethane which has been obtained from (1) at least one dihydroxy compound, (2) a diisocyanate from the group comprising (a) aliphatic diisocyanates having a branched carbon skeleton of 7 to 26 carbon atoms, (b) cycloaliphatic diisocyanates and (c) aliphatic or cycloaliphatic diisocyanates modified by radical graft copolymerization with vinyl monomers, (3) an aliphatic or cycloaliphatic diamine and (4) a monofunctional chain terminator.

Abstract: Novel structural adhesive systems for metal-bonding applications. The adhesives, comprising a solution or dispersion of a polymeric material in a monomer copolymerizable therewith having incorporated therein certain phosphorus-containing compounds, are characterized by an unexpected ability of providing strong adhesion to untreated metal surfaces without adversely affecting adhesive performance, including resistance to deleterious environments. The environmental resistance of the herein described adhesives can be further improved by the addition of one or more polybasic lead salts, metal molybdates and metal phosphates.

Abstract: An adhesive composition free of free-radical catalysts is disclosed comprising hydroxy terminated 1,2-polybutadiene, a diisocyanate, and either styrene, vinyl toluene, or a mixture thereof. The adhesive composition is A-staged whence a free-radical catalyst is added. A material such as a film or fibrous reinforcement is coated with the composition and the composition is B-staged. The coated material can be cured during lamination with copper in a heated nip roll.