Abstract: Improved filled silane copolymer compositions resistant to premature crosslinking during compounding and storage but which are readily hydrolyzed and undergo cure in the presence of silanol condensation catalyst are provided. The compositions are comprised of random copolymers of ethylene and vinyltriethoxysilane and contain relatively high levels of particulate fillers. Rubbery ethylene copolymers are included with the silane copolymer to produce compositions with superior physical properties. The invention also relates to the method of crosslinking these compositions by combining the filled silane copolymer compositions with a second component which has a silanol condensation catalyst dispersed in a polymer resin.

Abstract: A resin composition comprising two different compounds, A and B, with a number average molecular weight of 3,000 to 200,000 and a chelate compound. Compound A has two or more hydroxyl groups. Compound B has two or more epoxy groups and one or more of the following silane groups silanol, alkoxy silane and acyloxy silane.

Abstract: A thermosetting composition comprising (A) a carboxyl group-containing polyol resin, (B) a hydrolyzable silyl group-containing polymer, and at least one member selected from the group consisting of (C) a dehydrating agent and (D) an alcohol. The composition of the present invention is excellent in the physical properties of the film as well as the storage stability of the coating composition compared to the known compositions containing the curing catalyst.

Abstract: A surface covering including a blend of a silane-grafted ethylene/vinyl acetate polymer and an ungrafted thermoplastic polymer retains the desirable balance between indentation, tensile strength and elongation of a fully grafted EVA while permitting the reprocessibility of scrap material. Preferably, the silane graft density is one graft per about 100 carbons to one graft per about 5,000 carbons. The preferred EVA has about 18% to about 28% vinyl acetate.

Abstract: Filled, pelletized silane copolymer compositions resistant to premature crosslinking during compounding and storage but which are readily hydrolyzed and undergo cure in the presence of silanol condensation catalyst are provided. The compositions comprise random copolymers of ethylene an vinyltriethoxysilane with relatively high levels of particulate fillers, such as carbon black, alumina trihydrate and the like, dispersed therein. The invention also relates to a method of crosslinking these compositions by combining the filled silane copolymer composition with a second component containing a silanol condensation.

Abstract: Disclosed are:1) a three-component resin composition comprising a hydroxyl group-containing compound (A), an epoxy group-containing compound (B) and a silane group-containing compound (C);2) a two-component resin composition comprising a hydroxyl group-containing compound (A) and silane group- and epoxy group-containing compound (D);3) a two component resin composition comprising hydroxyl group- and silane group-containing compound (E) and epoxy group-containing compound (B); and4) two-component resin composition comprising hydroxyl group- and epoxy group-containing compound (F) and silane group-containing compound (C); wherein at least one of the components in each of the resin compositions 1) to 4) is (are) fluorine-containing resin;5) a curable composition comprising one of the resin compositions 1) to 4) and a metal chelate compound as curing catalyst; and6) coating compositions comprising such curing composition and when required a pigment.

Abstract: A flame retardant molding composition contains a halogen-free polycarbonate at least one halogen-free graft copolymer assembled from copolymerized units of an elastomer and certain ethylenically unsaturated monomers which include 1-50% by weight of an organic phosphorus compound of the formula (I) ##STR1## a halogen-free thermoplastic copolymer comprising styrene, .alpha.-alkylstyrene, nuclear-substituted styrene and/or C.sub.1 -C.sub.8 -alkyl (meth)acrylate, and (meth)acrylonitrile and/or maleic anhydride, as well as 1-46% by weight of a halogen-free phosphorus compound of the formula (I): Optionally a monophosphate additive and up to 5% by weight of a polytetrafluoroethylene with a median particle size of from 0.05 to 20 .mu.m may be added.

Abstract: A process for producing crosslinked polyolefins having improved physical properties is disclosed. The process comprises irradiating a copolymer of alkenylsilane and olefins, or a mixture of this copolymer and thereof with a polyolefin devoid of alkenylsilane segments.

Abstract: Disclosed are:1) a three-component resin composition comprising a hydroxyl group-containing compound (A), an epoxy group-containing compound (B) and a silane group-containing compound (C);2) a two-component resin composition comprising a hydroxyl group-containing compound (A) and silane group- and epoxy group-containing compound (D);3) a two-component resin composition comprising hydroxyl group- and silane group-containing compound (E) and epoxy group-containing compound (B); and4) two-component resin composition comprising hydroxyl group- and epoxy group-containing compound (F) and silane group-containing compound (C); wherein at least one of the components in each of the resin compositions 1) to 4) is (are) fluorine-containing resin;5) a curable composition comprising one of the resin compositions 1) to 4) and a metal chelate compound as curing catalyst; and6) coating compositions comprising such curing composition and when required a pigment.

Abstract: Polymeric flame retardants comprise halogenated aromatic compounds having acylamino functional groups which are chemically bonded to cyclic imide-containing or imide-forming polymers or copolymers. The polymeric flame retardants are prepared by the reaction of halogenated aromatics containing a reactive hydrazido group with some or all of the anhydride groups of an cyclic alpha, beta-unsaturated dicarboxylic acid anhydride polymer or copolymer to form pendant halogenated-aromatic-substituted imide or amic acid groups. In addition, polymeric film retardants are used to render thermoplastic resins less flammable under conditions which promote combustion. Novel flame retardant hydrazides are disclosed.

Abstract: An acrylic rubber composition is proposed which is improved in respect of the extrusion-moldability as well as the surface slipperiness of the vulcanized article obtained therefrom. The composition comprises (a) an acrylic rubbery cooplymer which is a copolymer of a (meth)acrylic ester and a coolymerizable organosilicon compound having a silicon-bonded vinyl group in a molecule, (b) a reinforcing filler, (c) a powder of spherical particles having a specified average particle diameter and (d) an organic peroxide as a vulcanizing agent. The composition can be compounded further with a blowing agent to give a foamable rubber composition capable of being vulcanized into a spongy rubber body exhibiting excellent feeling on touch and slipperiness in contact with human skin to be useful, for example, as a material of cosmetic puffs.

Abstract: A concentrate comprising a copolymer and 65 to 300%, by weight of the copolymer, of a vinyl silane is disclosed. The vinyl silane is vinyl trimethoxysilane and/or vinyl triethoxysilane. The copolymer is a copolymer of ethylene with at least one comonomer selected from the group consisting of carbon monoxide, vinyl acetate, alkyl acrylates and alkyl methacrylates, in which the alkyl groups have 1-4 carbon atoms. The copolymer is in a particulate form and has a heat of crystallization of less than 70 J/g, and if said copolymer is ethylene/vinyl acetate copolymer, then the copolymer has a vinyl acetate content of at least 18% by weight. The concentrate is maintained in a moisture-free environment and is in solid form. The concentrates are used in the moisture cross-linking of alpha-olefin polymers and offer versatility in processes for such cross-linking.

Abstract: A coating composition contains:(i) a mixture of copolymers comprising (a) 20% to 80% by weight, in terms of the resin solid content, of at least one copolymer selected from the group consisting of silicon-containing copolymers and fluorine-containing copolymers comprising 40 to 60 mol % of fluoroolefin, 45 to 5 mol % of cyclohexylvinyl ether, 15 to 5 mol % of alkylvinyl ether, and 0 to 30 mol % of other comonomers, having an active hydrogen group and (b) 80% to 20% by weight, in terms of the resin solid content, of an acrylic copolymer resin having a solubility parameter greater by 0.5 to 1.5 than that of the copolymer (a) and having an active hydrogen group, and(ii) a curing agent having a solubility parameter greater by 0.5 to 1.5 than that of the copolymer (a).

Abstract: Novel thermoplastic sheet materials for permitting positionable and repeated repositionable use of tape fasteners therewith without experiencing substnatial loss of tape adhesion therebetween are disclosed. A novel thermoplastic sheet material generally comprises an ethylene polymer and an anti-popoff polymer in an effective amount for increasing and substantially maintaining the tape adhesion. The increase in and substantial maintenance of the tape adhesion is accomplished without adversely affecting the properties or cost of the thermoplastic sheet material. A preferred formulation for producing the novel thermoplastic sheet material comprises polyethylene as the ethylene polymer and a polypropylene or alpha-methyl styrene as the anti-popoff polymer. The novel thermoplastic sheet materials are especially suitable for use as films which can be used as backsheets in absorbent articles, such as, disposable diapers, bandages, surgical dressings or drapes and catamenial pads.

Abstract: Copolymeric macromonomers containing alkyl acrylate and methacrylate units and units of polysiloxanylalkyl esters of acrylic and/or methacrylic acids and a terminal carbon-carbon double bond organo group are useful for copolymerizing with other acrylate or methacrylate esters to make improved polymer compositions such as for contact lenses.

Abstract: A novel flame-retardant material is prepared by copolymerizing pentabromobenzyl-acrylate with a metal salt of a compound of Formula I: ##STR1## wherein R.sub.1 is H or lower alkyl, and R.sub.2 is selected from H, lower alkyl and ##STR2## The novel flame retardant has improved thermal stability and is useful in a variety of uses, e.g. as a flame retardant in engineering plastics and styrenic.

Abstract: A high-gloss, impact-resistant rubber-modified polystyrene composition, characterized in that said rubber-modified polystyrene consists essentially of(i) a polystyrene,(ii) dispersed particles of elastomeric polymers, and optionally polydimethylsiloxane and at least one member selected from the group consisting of mineral oil, and metallic salts or amides of higher fatty acids based on the total weight of the composition.

Abstract: A process for preparing modified diene polymer rubbers having an increased impact resilience and a reduced hardness at low temperatures and useful as rubber materials for automobile tires and other industries which comprises producing an alkali metal-containing conjugated diene polymer, and reacting the alkali metal-containing polymer with a modifier selected from the group consisting of a nitro compound, a phosphoryl chloride compound of the formula: ##STR1## wherein R.sup.1 to R.sup.4 are independently an alkyl group, and an aminosilane compound of the formula: ##STR2## wherein R.sup.5 to R.sup.7 are independently an alkyl group or an alkoxyl group, R.sup.8 and R.sup.9 are independently an alkyl group, and n is an integer,said alkali metal-containing diene polymer being prepared by a living anionic polymerization using an alkali metal-based catalyst or by an addition reaction of a diene polymer having conjugated diene units and an alkali metal-based catalyst in a hydrocarbon solvent.

Abstract: A polymeric polyblend composition comprising a vinylidene chloride interpolymer, polyvinylchloride, and a compatibilizing amount of a compatabilizing polymer, said polymers being miscible.

Abstract: The invention provides a rubber dispersed copolymer resin having excellent heat resistance, impact strength and moldability and composed of (1) a dispersed phase formed of a rubbery polymer and copolymerized styrene-type, acrylonitrile-type and maleimide-type monomers, said rubbery polymer specificaly controlled occluding the copolymer of monomers, being grafted with the copolymer and/or forming a multicomponent gel together with copolymers, and (2) a continuous phase formed at least of a specifically controlled copolymer of the styrene-type, acrylonitrile-type and maleimide-type monomers. The resin is useful as a molding material for electric appliances, electronic equipment and cars.

Abstract: A durable hydrophilic surface can be formed on metals by coating them with a composition containing a first water soluble polymer based on polyacrylamide, a second water soluble polymer with at least 60 mole percent of ionizable groups such as acids and quaternary ammonium salts, and a cross linking agent. Water soluble chromium and zirconium salts that can form complexes with the first water soluble polymer are preferred crosslinking agents. The invention is particularly useful for aluminum to be used in heat exchangers.

Abstract: A process for extruding a hydrolyzable particulate thermolastic copolymer coated with an organic peroxide, which, under extrusion conditions, will provide essentially no crosslinking per se, but will decompose to provide a silanol condensation catalyst, including passing the coated copolymer through an extruder having a die at about its downstream end with the proviso that the extruder is operated under such conditions that (i) the temperature of the extruder before the die is maintained at a level sufficient to extrude the copolymer, but below the decomposition temperature of the organic peroxide; (ii) the temperature of the extruder at or after the die is maintained at or above the decomposition temperature of the peroxide; and (iii) there is sufficient moisture in the environment to crosslink the copolymer in the presence of a silanol condensation catalyst.

Abstract: Partially grafted flexible thermoplastic compositions formed by melt blending under high shear, a thermoplastic material which does not contain available graft sites, said thermoplastic material being at least one continuous phase of the composition, an ethylene copolymer containing an unsaturated mono-carboxylic acid, and a polymeric grafting agent having reactive groups capable of reacting with the mono-carboxylic acid in the ethylene copolymer and with the available graft sites in the thermoplastic material.

Abstract: A copolymer useful for magnetic paints is provided which is composed of (1) at least 60% by weight of vinyl chloride units, (2) 0.1 to 4.0% by weight, as a sulfur- or phosphorus-containing strong acid group, of strong acid group-containing monomer units (3) at least 0.1% by weight, as the hydroxyl groups, of units of a monomer which gives a side chain represented by the formula --X--OH wherein X is an organic group, and (4) 0 to 20% by weight of units of another monomer.

Abstract: A room temperature-curable resin composition consisting essentially of (A) a vinyl polymer containing a basic nitrogen atom and (B) a compound containing both an epoxy group and a hydrolyzable silyl group in each molecule. The composition is especially useful as a paint, an adhesive, or a sealing agent.

Abstract: An elastomer blend comprising:(a) a polyolefin selected from the group consisting of (i) polyethylene; (ii) a hydrolyzable copolymer of ethylene and silane; and (iii) a hydrolyzable silane modified polyethylene; and(b) an ethylene-propylene-diene terpolymer rubber, with or without silane modification, said terpolymer when silane modified being hydrolyzable, provided that, when component (a) is polyethylene, the terpolymer is silane modified,the blend of components (a) and (b) having the following physical properties:(i) Secant Modulus in the range of about 100 psi to about 10,000 psi;(ii) 100% Modulus in the range of about 100 psi to about 1500 psi; and(iii) Shore A hardness in the range of about 10 to about 100.

Abstract: The object of the invention is the use of ethylene-vinyl acetate-copolymers produced by emulsion polymerization and containing unipolymerized acids, for the modification of polyvinyl chloride.

Abstract: Compositions of relatively water-stable thermoplastic polymers having hydrolyzable, pendant silane moieties and tetramethyl titanate dispersed in a normally solid alkylene-alkyl acrylate copolymer matrix. These compositions are useful as extrudates about wires and cables, water-curing in a relatively short period of time to crosslinked products.

Abstract: A rubber composition capable of giving a highly oil-resistant vulcanizate with an organic peroxide as the vulcanizing agent is proposed. The composition is a blend of an EPM or EPDM rubber and an acrylic rubber loaded with a reinforcing filler, of which the latter rubber is a copolymer having at least two vinylsilyl groups in a molecule as the pendant groups introduced by the copolymerization of one or more acrylic monomers with a vinylsilyl-containing organosilicon compound having an aliphatically unsaturated group copolymerizable with the acrylic monomers in a molecule, such as CH.sub.2 .dbd.CH--CO--O--CH.sub.2 CH.sub.2 CH.sub.2 --Si-- and CH.sub.2 .dbd.CH--C.sub.6 H.sub.4 --Si--. The covulcanizate has the high mechanical strengths of the EPM or EPDM rubber and the high oil resistance of the acrylic rubber in combination.

Abstract: A roofing membrane composition comprising:(a) a first hydrolyzable polyolefin having a density less than or equal to 0.92 selected from the group consisting of (i) a copolymer of ethylene or propylene and silane and (ii) a silane modified polyethylene, polypropylene, or ethylene/propylene copolymer wherein, in (i) or (ii), the silane is present in an amount of about 0.

Abstract: An unsaturated polyester resin composition is provided comprising a hard unsaturated polyester component, a soft unsaturated polyester component and a cross-linking monomer. The soft polyester component contains a polyoxyalkylene segment having a molecular weight from 600 to 6000 in the backbone thereof and is dispersed in the hard polyester component forming fine particles having a particle size not greater than 4 microns. The resin composition, when cured, exhibits a Tg corresponding to the hard polyester component from 100.degree. C. to 200.degree. C. and another Tg corresponding to the soft polyester component from -100.degree. C. to 0.degree. C.

Abstract: A composite polymeric material having a high permeability to oxygen is proposed comprising a vinyl chloride moiety, an organosilicon moiety and, optionally, a third polymeric moiety. Such a composite polymeric material can be prepared in several ways including copolymerization of vinyl chloride monomer, a polymerizable organosilicon compound and, optionally, a third monomer, graft-polymerization of a polymerizable organosilicon compound on to a polyvinyl chloride resin, graft-polymerization of vinyl chloride on to an organopolysiloxane, graft-copolymerization of vinyl chloride and a polymerizable organosilicon compound on to a third polymer and blending of the respective polymeric components.

Abstract: Acrylic fibers having good basic dyeability characteristics are provided. The fibers are composed of an acrylic polymer having a sulfonate-containing nonacrylic polymer, such as a partially sulfonated polystyrene, dispersed therein.

Abstract: A cold-stretchable, self-adhesive film composition comprising (a) from 88 to 97% by weight of an ethylene-.alpha.-olefin copolymer, the .alpha.-olefin having from 3 to 10 carbon atoms and the copolymer having a density of between 0.905 and 0.940 g/cm.sup.3 and a melt index of between 0.1 and 2 dg/minutes and; (b) from 3 to 12% by weight of a polymer selected from among polyisobutylene, atactic polypropylene, cis-polybutadiene and bromobutyl rubber. The film compositions find particular use in the automation of the spiral wrap-round packaging technique.

Abstract: A fusible flame retardant sealant composition comprised of a homogeneous mixture of polyvinylidene fluoride, methacrylate polymer, and antimony oxide is disclosed. In the preferred embodiment, the sealant composition also contains zinc oxide. The sealant composition as disclosed herein is used to make fusible sealant inserts for preinsulated electrical connectors having a heat recoverable sleeve. The connectors are essentially comprising a conductor connecting means positioned within the heat recoverable sleeve, the conductor connecting means being designed to receive and electrically connect two or more electrical conducting members, the members being inserted from the ends of the sleeve, and one fusible sealant insert member made of said composition positioned near each one of the open ends of the sleeve.

Abstract: The char residue formation of molded compositions, upon combustion, is improved by incorporating into the moldable composition a char-forming polymer containing recurring units of at least one monomer capable of undergoing tautomerization, at least one monomer capable of undergoing a nucleophilic substitution reaction by said monomer capable of undergoing tautomerization and, optionally, at least one additional copolymerizable monomer.

Abstract: Optically clear lenses, particularly contact lenses, may be prepared from an alloy of a polyacrylate resin and a siloxane-styrene copolymer, the alloy having an oxygen permeability greater than the polyacrylate resin. Preferably the polyacrylate is polymethylmethacrylate or methylacrylate-ethylacrylate copolymer, and the siloxane-styrene copolymer is preferably a polydimethylsiloxane-alpha-methylstyrene block copolymer. The alloy composition may be produced by melt mixing, preferably by polymerizing acrylate monomers in the presence of siloxane-styrene copolymer.

Abstract: Novel thermoplastic polyelectrolyte complexes are disclosed which are the reaction products of (a) a polyanion and (b) a polycation wherein one of the polyanion and polycation contains repeating units derived from a soft monomer. By the selection of said soft monomers and of the cation group present in the polycation, moldable, extrudable polyelectrolyte complexes are obtained.

Abstract: The present invention relates to macromolecular compositions crosslinked by a novel bridge having the formula --NR.sup.x --CH.dbd.N--CO--. This novel bridge is obtained by reacting a macro-molecule, preferably a polymer, having at least two amidocarbonyl groups with a compound having at least two formylamido groups in an aqueous medium under highly acidic conditions. The crosslinking bridge formed by the reaction of this invention is produced in accord with the following formula: ##STR1## Compositions containing macromolecules having at least two amidocarbonyl groups and a compound having at least two formylamido groups can act as viscosifying or gelling agents for aqueous acids where when added to aqueous acids, crosslinking occurs. Acids gelled in this manner have important use in the recovery of oil and natural gas from subterranean formations.

Abstract: The method of producing a rubber compound having high green strength comprising providing separate rubber components one of which contains a tertiary amine component bound therein and the other of which contains a halogen cross linking agent bound therein, and blending the two rubber components to form a rubber blend having high green strength.

Abstract: An improved orthopaedic cement of the type used to, e.g. position and hold prosthetic devices in place within bone cavities after surgical repair of the bone system. The cement is characterized by markedly increased toughness and resistance to fracture due to the rubbery, or elastomeric, nature of the included polyacrylate resin phase.

Abstract: A novel flame-retardant ethylene polymer composition comprising a copolymer consisting essentially of ethylene and an olefinically unsaturated silane compound such as vinyltriethoxysilane, a silanol condensation catalyst such as dibutyltin dilaurate, and a flame retardant such as a chlorinated polyethylene.

Abstract: Polypentabromostyrene with a bromine content of 76% to 80%, which is plastic at a temperature of 280.degree. C. and is thermally decomposed at a temperature of about 400.degree. C., can be produced by reacting pentabromophenylethyl bromide with an alkali metal hydroxide or carbonate in an alcoholic solvent and subsequently by catalytically initiating polymerization. The polypentabromostyrene is useful as a flame retardant for thermoplastic synthetic resins.

Abstract: A thermoplastic molding composition which comprises a homogeneous mixture of two thermoplastic copolymers is disclosed. In one of its more specific aspects, this invention pertains to a homogeneous mixture of a copolymer of a monovinyl aromatic monomer and an alpha, beta-unsaturated cyclic anhydride and a phosphorus-containing alternating copolymer.

Abstract: A flame-retardant and radiation-resistant polymer composition comprising a polymer and a halogenated acenaphthylene condensate having a structural unit of the formula (I) or (II): ##STR1## (wherein X is chlorine or bromine, n and n' are each an integer of 2 to 6, R is a substituent other than halogen, m and m' are each an integer of 0 to 4, n (or N')+m(or m').ltoreq.6, and when m or m' is 2 or more, each R may be the same or different) and a flame-retardant and radiation-resistant resin molded product prepared therefrom are herein disclosed.

Abstract: Copolymers having a backbone of alternating polymer blocks and phosphorus units and their method of production are disclosed. These alternating copolymers exhibit excellent fire retardancy.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 55 parts by weight of a highly saturated elastomer. The thermoplastic blends have very good physical properties, especially tear strength, tensile strength, elongation at break, low temperature impact resistance, minimum creep at high temperatures, and smooth surfaces when injection molded. The compositions, which may be partially cured, also have excellent aging properties, as well as paint adhesion. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 55 parts by weight of a highly saturated elastomer. The thermoplastic blends have very good physical properties, especially tear strength, tensile strength, elongation at break, low temperature impact resistance, minimum creep at high temperatures, and smooth surfaces when injection molded. The compositions, which may be partially cured, also have excellent aging properties, as well as paint adhesion. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: Thermoplastic elastomer compositions of the present invention comprise a blend of from about 10 to about 50 parts by weight of a crystalline 1-olefin polymer, from about 80 to about 15 parts by weight of a styrene-butadiene rubber, and from about 5 to about 55 parts by weight of a highly saturated elastomer. The thermoplastic blends have very good physical properties, especially tear strength, tensile strength, elongation at break, low temperature impact resistance, minimum creep at high temperatures, and smooth surfaces when injection molded. The compositions, which may be partially cured, also have excellent aging properties, as well as paint adhesion. The compositions are a true thermoplastic in that they can be repeatedly processed and yet maintain their good physical properties.

Abstract: The invention relates to a process for the stabilization of a spinning solution of an acrylonitrile polymer and a solvent which comprises adding from 0.005 to 0.5% based on the quantity of polymer of at least one stabilizer selected from a polyfunctional phosphonic acid, a phosphonocarboxylic acid or a polymer containing phosphonic acid and/or carboxyl groups to the spinning solution as well as to such stabilized spinning solutions.