Abstract: An under-coating composition comprising 100 weight parts of chlorinated polyolefin resin including 15 to 35 wt. % of chloride and 1 to 70 weight parts of epoxy resin having an equivalent epoxy weight of less than or equal to 600 is capable of eliminating the pretreatment of a surface of polyolefin resin substrate which is to be overcoated and improving the adhesion strength between the over-coatings and the surface of the substrate of polyolefin resin. Especially, the coating surface according to the present invention is much improved in resistance to hot water and resistance to humidity. Further, the use of the under-coating composition according to the present invention permits an over-coating film to have a high resistance to water decoloration.

Abstract: Multilayered barrier structures comprising a gas barrier layer of a non-chlorine containing organic polymer which is substantially impermeable to oxygen gas and a moisture barrier layer of a mesophase propylene-based material are provided. These structures are environmentally compatible and radiation resistant, and exhibit one or more additional properties, including gas barrier properties, moisture barrier properties, toughness, heat sealability, softness, and quietness during wrinkling. Also provided are methods of preparing and using such multilayered barrier structures, and articles, such as films, pouches, and tubings, formed from these structures.

Abstract: A primer composition, particularly suitable for a highly plasticized polyolefin substrate, comprises a mixture of chlorinated polyolefin and rubberized epoxy resin.

Abstract: Relatively brittle epoxy resin systems which may be employed as structural film adhesives and matrix resins for fiber-reinforced prepregs are toughened against impact-induced damage by the addition of minor quantities of functionalized elastomer particles having a glass transition temperature of less than 10.degree. C.

Abstract: Mixtures of PVF, bis-phenol-epichlorohydrin copolymer, hindered phenol, phosphite and mercaptoarylimidazole permit formation of thick PVF articles.

Abstract: Compositions of stabilized stereoregular polymer of branched higher alpha-olefins, grafting compounds, free radical generators, glass and epoxy resins and/or epoxy-functional silanes and/or hydroxy functional compounds are provided as well as methods for making these compounds and articles thereof.

Abstract: Novel polymers which are suitable as binders are obtainable by reacting(A) a base resin which has an average molecular weight M.sub.w of from 200 to 5,000 and contains on average from 1 to 3 epoxy or isocyanato groups as the reactive groups per moleculewith(B) a mixture of(B1) 5 to 50% by weight of polyisobutylene which is terminated with primary amino groups and has an average molecular weight M.sub.w of from 500 to 5,000 and(B2) 5-95% by weight of an amidoamine which carries primary amino groups and is obtainable by condensation of diprimary diamines of 2 to 20 carbon atoms with aliphatic C.sub.2 -C.sub.44 -dicarboxylic acids,the amounts being such that from 1 to 5 equivalents of primary amino groups of (B) are present per equivalent of reactive groups of (A).

Abstract: A rubber composition which is vulcanizable with organic peroxides and provides vulcanized rubber excellent in oil resistance, heat resistance, low-temperature resistance and compression set.

Abstract: Curable epoxy resins are toughened with statistical monofunctional carboxyl, amine or epoxy terminated reactive polymers and have low viscosities before cure thereby making them useful in a wide range of applications. The cured epoxy resin systems which are modified by the statistical monofunctional reactive polymers have physical properties, such as adhesion and elongation, generally equal to or better than those of cured epoxy resin systems modified with statistical difunctional reactive polymers. A process of preparation for the modified epoxy resin systems of the present invention includes admixing an epoxy resin with a statistical monofunctional carboxyl, amine, or epoxy-terminated reactive polymer in the presence of a curing agent and reaction therewith to form the toughened, cured epoxy resin system.

Abstract: In an adhesive for printed circuit boards, whose main components are an epoxy resin and a polymer rubber, the improvement wherein the polymer rubber is a hydrogenated conjugated diene polymer rubber having not more than 100 ppm of metal content, not more than 100 ppm of ion content as determined by ion chromatography, and an iodine value of not more than 120, the ratio by weight of the hydrogenated conjugated diene polymer rubber to the epoxy resin in the adhesive being 35-75 weight % to 65-25 weight %.

Abstract: In an adhesive for printed circuit boards, whose main components are an epoxy resin and a polymer rubber, the improvement wherein the polymer rubber is a hydrogenated conjugated diene polymer rubber having not more than 100 ppm of metal content, not more than 100 ppm of ion content as determined by ion chromatography, and an iodine value of not more than 120.

Abstract: The invention is a polyester and a method for producing a polyester filament which has a combination of flame resistance and low pilling properties. The method comprises forming a polyester polymer from a mixture consisting essentially of terephthalate acid or dimethyl terephthalate, ethylene glycol, a chain branching agent having a functionality of at least 3 and a phosphinic acid in the amount between 0.5 and 20 mole percent of the terephthalate acid and monomer. In particular, the invention also comprises the enhanced fiber formed by the process, as well as the fabrics having a pilling of about 3 to less than 5 as measured in accordance with ASTM D-3512-82.

Abstract: Curable epoxy resins are toughened with statistical monofunctional carboxyl, amine or epoxy terminated reactive polymers and have low viscosities before cure thereby making them useful in a wide range of applications. The cured epoxy resin systems which are modified by the statistical monofunctional reactive polymers have physical properties, such as adhesion and elongation, generally equal to or better than those of cured epoxy resin systems modified with statistical difunctional reactive polymers. A process of preparation for the modified epoxy resin systems of the present invention includes admixing an epoxy resin with a statistical monofunctional carboxyl, amine, or epoxy-terminated reactive polymer in the presence of a curing agent and reaction therewith to form the toughened, cured epoxy resin system.

Abstract: Disclosed are epoxy/polyamide adhesive compositions having improved flexibility containing a polyolefin and a maleated polypropylene. A typical epoxy/polyamide adhesive is bisphenol A/epichlorohydrin.

Abstract: The adhesive properties of a hot melt adhesive, comprising a base polymer and a tackifying resin, can be improved by introducing into the hot melt adhesive an epoxy adduct comprising the reaction product between a compound such as a polymer having at least one active hydrogen and an epoxy compound.

Abstract: Fibrous material, in particular shoddy from synthetic fiber wastes, can be compacted into thermally and acoustically insulating boards and moldings by mixing with a pulverulent adhesive comprising a hot-melt adhesive and a solid epoxy resin/curing agent system and heating the mixture under pressure in a mold to a temperature at which the hot-melt adhesive becomes liquid and the epoxy resin reacts with its curing agent.

Abstract: An epoxy resin comprising an active hydrogen compound having at least three active hydrogen atoms capable of reacting with an epoxy group in its molecule or butadine or isoprene as a main monomer is modified with an oligomer having on average at least 1.5 equivalents of active hydrogen capable of reacting with an epoxy group in its molecule. An epoxy resin modified with a bisphenol and a compound having active hydrogen or acid anhydride groups capable of reacting with an epoxy group is also provided. A toner containing the epoxy resin as a binder is useful in electrostatography.

Abstract: Disclosed is a polyester composition comprising (a) 100 parts by weight of an aromatic polyester; (b) 0.005-10 parts by weight of an epoxy compound of the formula (I): ##STR1## (wherein Ar means C.sub.6 -C.sub.20 aromatic group or C.sub.6 l-C.sub.20 alicyclic group, n means an integer of 0-20); and (c) 1-70 parts by weight of at least one elastomer which has at least one functional group selected from the group consisting of epoxy groups, carboxyl group, carboxylate ester groups, carboxylic acid amide groups, acid anhydride group, imide groups, carboxylate salt groups, hydroxyl group, amino group and cyano group, the elastomer having a tensile modulus of 1-6,000 kg/cm.sup.2. The polyester resin composition of the present invention can easily be molded and the obtained molded article excells in mechanical properties such as impact strength.

Abstract: The adhesive properties of a hot melt adhesive, comprising a base polymer and a tackifying resin, can be improved by introducing into the hot melt adhesive an epoxy adduct comprising the reaction product between a compound such as a polymer having at least one active hydrogen and an epoxy compound.

Abstract: A process for enhancing the fabrication of thermoplastic polymers entailing the addition of from 0.01 to 1 part, per hundred parts of thermoplastic polymer, of a processing aid, said processing aid comprising a processing additive, such as a silicone or a polyol, and a processing adjuvant, such as a phosphate.

Abstract: Industrial high speed paint rollercoating processes are improved by the addition of wax particles to thermosetting rollercoatings. Wax particles having a particle size less than 50 microns and a softening point above 175.degree. F. are dispersed into the rollercoating compositions to provide highly desirable antiflashing properties during the rollercoating process.

Abstract: Dieneophile functional modified aminoepoxy resins are disclosed, which resins are the reaction product of (i) diepoxide reactant, (ii) amine functional dieneophile chain extending reactant, (iii) optionally, end-capping reactant such as monohydroxy functional blocked dieneophile, (iv) hydroxy functional secondary amine modifying agent, and (v) certain secondary amine terminated or carboxy terminated butadiene acrylonitrile copolymer modifying agent.

Abstract: (1) A hardenable coating composition for polypropylene resins, having a chlorinated polyolefin as a principal constitutional element provided partially a crosslinking reaction beforehand between carboxyl group or acid anhydride group of a chlorinated polyolefin (I) obtained by chlorinating, to a degree within a range from 10 wt % to 50 wt %, a polyolefin which is modified with one or two or more types of compounds selected from a group consisting of unsaturated polycarboxylic acids or their acid anhydrides and has a saponification value ranging from 6 to 60, and epoxy group of a compound or a resin (II) which has at least two epoxy groups per molecule.(2) A hardenable coating composition for polypropylene resins described in claim 1, wherein the weight ratio of chlorinated polyolefin (I) to the compound or the resin (II) which has epoxy groups is 100:0.5-50.

Abstract: Described herein is a composition which contains a specific group of hardeners, an epoxy resin and a thermoplastic polymer. When combined with a structural fiber the composition produces composites which have improved impact resistance, improved tensile properties and high compressive properties.

Abstract: Dieneophile functional modified aminoepoxy resins are disclosed, which resins are the reaction product of (i) diepoxide reactant, (ii) amine functional dieneophile chain extending reactant, (iii) optionally, end-capping reactant such as monohydroxy functional blocked dieneophile, (iv) hydroxy functional secondary amine modifying agent, and (v) certain secondary amine terminated or carboxy terminated butadiene acrylonitrile copolymer modifying agent.

Abstract: An impact-resistant phenolic resin composition comprising 99 to 25% by weight of a phenolic resin and 1 to 75% by weight of a nitrile group-containing highly saturated polymer rubber whose amount of bound nitrile ranges from 10 to 60% by weight and having an iodine value not exceeding 120.

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: Epoxidized and subsequently cross-linked esters of alcohols which are at least dihydric and unsaturated fatty acids may be used as active processing substance in polymers, in particular elastomers, at higher temperatures, in particular at higher vulcanization temperatures, than "Factice". They may be produced by a particularly elegant one-shot reaction.

Abstract: An adhesive composition comprises(a) a thermoplastic polyamide having reactive amine groups;(b) a thermoplastic copolymer of an alkene with an ethylenically unsaturated ester of an alkanol and a carboxylic acid, e.g. vinyl acetate or ethyl acrylate, and optionally one or more acidic copolymers; and(c) a thermoplastic epoxy resin.The components (a) and (b) are present in a ratio of from 35:65 to 75:25 by weight and component (c) is present in an amount of from about 8 to 79 parts per hundred parts of components (a) and (b) by weight, components (a), (b) and (c) existing separately in the form of particles that are mixed together.

Abstract: Herein disclosed are a toner composition for the development of electrostatic latent images which comprises a polymer obtained by polymerizing a polymerizable monomer or monomers in the presence of a chlorinated polyolefin, and a method for preparing the same.

Abstract: Rubbery polymer compositions, e.g. based on chlorobutyl rubber, having improved adhesion to mineral substrates such as glass or metal, are produced by a stepwise reaction sequence. In a first stage the rubbery polymer is reacted with a reactive silane such as an amino trialkoxy silane, in a second stage the product is mixed with an epoxy resin, and in a third stage a further amount of reactive silane is reacted with the epoxy containing compound.

Abstract: A process for the preparation of moldings, in particular resilient elements, which by virtue of a densified surface zone with substantially closed cells, have only a low water absorption, wherein a mixture comprising:(a) 100 parts by weight of an NCO-containing prepolymer, having an NCO content of from 3 to 6% by weight and based on organic diisocyanates and substantially linear polyester-polyols or polytetramethylene ether glycol,(b) from 0.5 to 1.6 parts by weight of water,(c) one or more catalysts, preferably a tertiary amine, in an amount of from 0.01 to 2.0 parts by weight and(d) assistants, with or without additives, is reacted in a closed mold, while undergoing densification, the surface temperature of the inner wall of the mold being from 50.degree. to 70.degree. C.

Abstract: One-component systems which are stable on storage and can be converted to crosslinked epoxide resins on heating and which contain a crystalline epoxide resin with, on average, more than one epoxide group per molecule and a melting point between 40.degree. and 150.degree. C., and, homogeneous distribution, a curing catalyst.

Abstract: Provides new and improved water-reducible coating compositions and methods of making them. Three preferred processes are disclosed. These differ in the manner of incorporating and chemical nature of an extender polymer.Broadly, the process of the invention is one for forming an aqueous dispersion of a fluent resinous composition ofa. a mixture in an organic solvent of(i) an ionizable graft polymer of an epoxy resin and an addition polymerized resin, the addition polymerized resin being bonded to aliphatic backbone carbon atoms of the epoxy resin by carbon-to-carbon bonds, and(ii) an extender resin;b. an aqueous vehicle, andc. an ionizing agent;the ionization present from said combined components being sufficient to establish the components as a dispersion in the aqueous vehicle, and then addition polymerizing a quantity of addition polymerizable monomer, under addition polymerizing conditions, in said aqueous dispersion, the aqueous dispersion serving as a vehicle therefor.

Abstract: Protective coating powder comprising a polyglycidyl ether of bisphenol A and trimellitic anhydride has improved shelf stability when it contains a hindered nitrogen-containing compound such as N,N-diethylaniline.

Abstract: A liquid or pasty thermosetting adhesive which can be pre-gelled, which is suitable for the bonding of moulded parts or for the sealing of folded seams, and which contains (a) a liquid epoxide resin having on average more than one epoxide group in the molecule, and (b) a latent epoxide curing agent insoluble in the epoxide resin, the adhesive being characterized in that it also contains (c) in an amount of 5 to 50 percent by weight relative to the epoxide resin, at least one halogen-free thermoplast in powder form, which is insoluble in the epoxide resin at room temperature, and which has a softening point of between 60.degree. and 160.degree. C., such as a polyethylene, a polypropylene or an ethylene/acrylic acid/acrylate terpolymer.

Abstract: An adhesive for floor coverings containing(a) 100 parts by weight of an aqueous polymer dispersion having a solids content of from 30% to 70% by weight of the total weight of said dispersion, the solids content consisting of synthetic resin particles of at least a bimodal particle size distribution wherein the majority of the larger particles is at least twice the size of the majority of the smaller particles and where the majority of the larger particles has a particle size distribution of from 0.5 to 3 .mu.m and the majority of the smaller particles has a particle size distribution of from 0.1 to 1 .mu.

Abstract: The present invention relates to epoxide resins containing phenol groups and to homo-oligomers thereof of the structure ##STR1## that are obtained by reacting phenolcarboxylic acids with one epoxide equivalent of a polyepoxide. The new compounds are difficultly volatile and resistant to migration and can be used as stabilizers in synthetic polymers, in particular in poly-.alpha.-olefins.

Abstract: Flame-retardant antistatic polymer additives are provided which inhibit the buildup of electrostatic charges upon the addition of such compositions to synthetic polymeric fibers, i.e., polyamide fibers, and at the same time do not contribute to the flammability characteristics of such polymeric fibers. The flame-retardant antistatic polymer compositions are useful in combinations with fibers such as polyamide, polyester, polyurea, polyurethane, polysulfonamide, polyolefin and polyacrylic fibers. The antistatic effect is obtained by the process of coating the fibers or dispersing in or on the fibers up to about 12 percent by weight of a polymer composition which is the reaction product of:(a) a polyoxyalkylene compound or polyester thereof and(b) at least one reactant selected from the group consisting of (1) a diol, (2) a polyester and (3) an aliphatic or aromatic diacid or derivative of (3), wherein at least one said reactant is halogenated.

Abstract: A crosslinkable resin composition comprising (A) a polyethylene resin composition containing 0.1 to 10% by weight of a crosslinking agent and (B) a thermosetting resin composition selected from the group consisting of cyanate ester resin compositions, polyester resin compositions and epoxy resin compositions; said crosslinkable resin composition comprising (1) 95 to 5% by weight of the resin composition (A) and 5 to 95% by weight of the resin composition (B) when the resin composition (B) is a cyanate ester resin composition, and (2) 95 to 20% by weight of the resin composition (A) and 5 to 80% by weight of the resin composition (B) when the resin composition (B) is a polyester resin composition or an epoxy resin composition; and a method for producing a laminate using said composition.

Abstract: Solvent-free hot melt compositions for use as sealants, adhesives, caulking compounds or the like are produced by intimately blending elastomeric polymers with tackifying resins and plasticizers to obtain products having a hardness at room temperature of at least about 5 on the Shore A Durometer scale while being sufficiently soft at temperatures of about 150.degree. F. or higher to permit them to be easily extruded or otherwise applied. Adhesion promoters, lubricants, fillers and the like are preferably added to the composition to improve the properties thereof. The products are characterized by their stability over a wide range of temperatures, their resistance to oxidation and weathering, and their low moisture vapor transmission properties.