Abstract: Particulate elastomeric graft polymers which are suitable for improving the quality of macromolecular base materials B consist ofa) a grafting core comprising an elastomeric polymer P.sub.K, the particles having a mean particle diameter of from 1 to 150 .mu.m, andb) one or more shells, the outer shell S.sub.a consisting of a polymer P.sub.a which is compatible or partly compatible with the base material B.

Abstract: Disclosed herein is a golf ball with a cover formed from a polyamide composition and a method of making the same. More specifically, the golf ball has a cover which contains a combination of a polyamide component and an ionomeric component or a non-ionomeric terpolymer component. The cover composition has excellent durability and resistance to cracking, even at cold temperatures. The nylon-ionomer blend is a useful substitute for an ionomer golf ball cover, particularly when a low spin golf ball is desired.

Abstract: A one-part cold crosslinking emulsion composition containing, in an aqueous medium, a double-structure fine grain comprising the following Component (A) 1 and the following Component (B) 2 covering the same, wherein the following Component (C) is contained in Component (B) 2:(A) a copolymer comprising an epoxy group-containing monomer and an ethylenic unsaturated monomer;(B) a copolymer comprising an unsaturated carboxylic acid and an ethylenic unsaturated monomer; and(C) a low molecular weight monofunctional epoxy compound.

Abstract: A long fiber-reinforced polymer alloy resin composition (C) is provided which is obtained by blending a master batch (A) containing a long fiber reinforcement (a2) having a length of 3 to 30 mm in a resin matrix of a polyamide resin (a1), with a substantially polymer-alloyed resin diluent (B) obtained by melt kneading 45 to 20% by weight of a crystalline polyolefin resin (b1) and 55 to 80% by weight of a polyamide resin (b2), the crystalline polyolefin resin (b1) containing a modified olefin crystalline polymer (b11) having been substantially modified with unsaturated carboxylic acids. In this resin composition (C), the amount of the long fiber reinforcement (a2) is in the range of 10 to 60% by weight, and the amount of the crystalline polyolefin resin (b1) in resin components ((a1)+(b1)+(2)) other than the long finer reinforcement (a2) is in the range of 20 to 45% by weight. This resin composition (C) is excellent in tensile strength and particularly excellent in repeated impact resistance properties.

Abstract: A process for efficiently manufacturing polyarylene sulfide copolymer in which polymers are well dispersed and which copolymer exhibiting superior mechanical properties. The process comprises reacting a polyarylene sulfide resin (A) and an amination agent (B) in a non-protonic organic solvent (C), and copolymerizing the resulting amino polyarylene sulfide resin (A') and a reactive elastomer (D) in a non-protonic organic solvent (C'), thereby obtaining a polyarylene sulfide resin (A") with the elastomer dispersed in the resin matrix.

Abstract: Toughened thermoplastics are prepared by mixing a water-moist elastomer component A containing up to 60% by weight of residual water with a thermoplastic polymer B and further polymers C and additives D in an extruder with mechanical dewatering of the elastomer component A, by a process in which the components A, B, C and D are fed to a twin-screw extruder which has corotating screws and essentially comprises, in the transport direction,at least one metering section in which the elastomer component A is fed to the extruder by a metering means,at least one squeeze section which serves for dewatering the component A and contains at least one retarding element and in each case at least one associated dewatering orifice,at least one section in which the thermoplastic polymer B is introduced as a melt into the extruder,at least one section provided with mixing, kneading or other plasticating elements or combinations of these elements,at least one devolatilization section which is provided with at least one devolat

Abstract: Polylactide or polyglycolide graft copolymers are prepared by a process comprising preparing a backbone polymer from acrylate and/or methacrylate monomers and from one or more polymerizable monomers that contain a functional group unreactive in a free-radical polymerization, the backbone polymer being compatible with lactide monomer or lactide polymer; adding to the resulting polymer up to 40% by total polymer weight, but not 0%, of the D- or L-isomer of lactide in an enantiomeric excess of 84%; heating the mixture of lactide and polymer to a temperature of 80.degree.-175.degree. C. in the presence of a tin catalyst for a period of time effective to polymerize the lactide and react the lactide with the functional group on the backbone polymer.

Abstract: This invention provides the following resin composition, method for producing the composition, resin slide material, organic solvent resist material and glass fiber reinforced composition obtained therefrom. A polycarbonate/polyolefin based resin composition exhibiting an improved polycarbonate/polyolefin compatibility prepared by melt kneadin (A) a polycarbonate resin; (B) a polyolefin resin; (C) a polyolefin resin that has been modified with at least one functional group selected from the group consisting of epoxy, carboxyl, and an acid anhydride groups; (D) a compound represented by the formula: HOOC--R--NH.sub.2 wherein R represents at least one member selected from the group consisting of an alkene group, an alkylidene group, and an oligomethylene group containing 5 or more carbon atoms, and phenylene group and naphthylene group optionally substituted with an alkyl group; and optionally, (E) a styrene copolymer resin.

Abstract: Thermoplastic compositions based on polybutylene terephthalate are provided which are useful in high temperature resistant wire coating applications. These compositions generally are four-component alloys with reduced ethylene copolymer (ionomer) content.

Abstract: To provide novel silicone-modified acrylic rubber particles prepared at a high conversion without using a special polymerization plant by graft-polymerizing (B) 45 to 5,000 parts by weight of a silicone rubber precursor comprising 99.9 to 80% by weight of a low molecular weight organosiloxane, 0.1 to 10% by weight of a polyfunctional silane compound and 0 to 10% by weight of a reactive silane compound having a polymerizable unsaturated bond or a mercapto group in its molecule to (A) 100 parts by weight of acrylic rubber particles, and if necessary, thereto by graft-polymerizing (C) 0.1 to 5,000 parts by weight of an acrylic rubber precursor; graft copolymer particles of silicone-modified acrylic rubber which are prepared from the above-mentioned acrylic rubber particles and are capable of improving weather resistance and impact resistance of various thermoplastic resins; and a thermoplastic resin composition comprising the above-mentioned resin and the graft copolymer particles.

Abstract: Polar thermoplastic polyolefin blends are provided which are flexible and are particularly useful in replacing polyvinyl chloride sheeting used as liners, folders, etc. The blends comprise in general, a non-polar thermoplastic polyolefin, a functionalized polar ethylene copolymer, and a functionalized olefin polymer as a compatibilizer, all of which are chlorine-free.

Abstract: Thermoplastic polyolefin compositions of a substantially crystalline polyolefin that is a homopolymer of ethylene, propylene or butylene or a copolymer of propylene and a C.sub.3 -C.sub.10 alpha-olefin; about 10% to 50% by weight of a first substantially amorphous polyolefin of a terpolymer of ethylene with a C.sub.3 -C.sub.10 alpha-olefin and a diene monomer and having a Mooney Viscosity (ML.sub.1+4, 100.degree. C.) of between about 10 and about 120; optionally, a copolymer of ethylene and a C.sub.3 -C.sub.10 alpha-olefin may be present; and about 1 to 20% by weight of a second substantially amorphous polyolefin having a number average molecular weight of between about 1,000 and 15,000 and including (a) a copolymer of ethylene with a C.sub.3 -C.sub.10 alpha-olefin; (b) a terpolymer of ethylene with a C.sub.3 -C.sub.10 alpha-olefin and a diene monomer; (c) a block copolymer that includes blocks of a C.sub.3 -C.sub.

Abstract: A compound comprising a blend of polypropylene with the reaction of a functionalized polypropylene and polyether amine in which the polyetheramine is grafted into the functionalized polypropylene in a customary mixing apparatus is disclosed. The blend may include an elastomer such as EP rubber and/or a filler such as glass. A process for producing the reaction product of the functionalized polypropylene and the polyether amine by melting with polypropylene in a customary mixing apparatus is also disclosed. Blends of the present invention are advantageously useful to prepare paintable automotive body parts.

Abstract: The present invention relates to a coating composition which is excellent in handling and safety, enables the curing of the resultant coating composition at low temperature, and provides an excellent adhesion to polyolefin resin moldings. The coating composition comprises (1) 40-90 wt. % of a grafted and chlorinated polyolefin oligomer obtained by graft polymerizing a vinyl polymerizable monomer to a chlorinated polyolefin, the grafted and chlorinated polyolefin oligomer having a primary or blocked primary hydroxyl group at a position of 15 to 40 atoms away from the vinyl graft polymer chain grafted to the chlorinated polyolefin, a number average molecular weight of 5,000 to 50,000, 0.4 to 2.5 mole/kg-resin of a primary or blocked primary hydroxyl group, 50 to 95 wt. % of said vinyl graft polymer chain, and 5 to 50 wt. % of the chlorinated polyolefin used as a starting material, and (2) 60 to 10 wt. % of an imino-type, methylol-type or complete alkoxy-type melamine resin.

Abstract: A coating composition of a film forming binder and an organic liquid carrier; wherein the binder contains about(a) 10-90% by weight, based on the weight of the binder, of a dispersed gelled acrylic polymer having a glass transition temperature of at least 20.degree.

Abstract: This invention relates to a novel class of polymeric compositions which have molecular weights ranging from 300 to 10,000 and are the reaction product of (a) an N-aryl or N-alkaryl substituted diphenyldiamine and (b) a conjugated or nonconjugated diene. These polymeric N-aryl substituted and N-alkaryl diphenyldiamine compounds are particularly useful as an antioxidant in diene containing polymers.

Abstract: The invention relates to a radiation curable binder composition for powder paint formulations. The binder composition comprisesa) a polymer having a degree of unsaturation between 300 and 1800 grams per mole of unsaturated group (WPU), having a molecular weight Mn between 800 and 6800 and a viscosity between 1 dPas and 800 dPas andb) a crosslinking agent having vinyl ether, vinyl ester or (meth)acrylate functional groups.The polymer is an unsaturated polyester and/or an unsaturated polyacrylate.The binder composition can be used in the preparation of powder paint formulations which can be applied to heat-sensitive substrates such as wood and plastic and which can be cured with UV or electron beam radiation.

Abstract: A method of making articles of manufacture, such as automobile bumpers and other components, formed from thermoplastic olefin compositions, having improved resistance to gasoline and other fluids when painted with flexible coatings such as two component polyurethane paints, and the like, are disclosed. The compositions used to form these articles include a thermoplastic olefin such as crystalline polypropylene, crystalline polyethylene or mixtures thereof with a first rubber component of an ethylene propylene diene rubber having a high molecular weight and a second rubber component of an ethylene propylene diene rubber having a low molecular weight, wherein the first rubber component has a molecular weight of 4 to 200 times that of the second rubber component.

Abstract: High performance polymer compositions comprising orthoester or orthocarbonate functionalized olefin polymers and polyphenylene ethers, polyamides or combinations thereof, and the compositions unexpectedly display improved impact resistances and/or decreased delamination.

Abstract: This invention relates to a process for producing granulated polymer materials from polymer solutions, in which organic solvent of the polymer solution is evaporated in a heat exchanger, optionally with the admixture of steam, or in a holding tube with the admixture of steam, and the paste-like mixture of concentrated solution, solvent vapour and optionally of condensed steam is separated in a separator provided with rotating built-in components for cleaning off the walls. The pre-concentrated polymer solution is further concentrated in the separator by supplying heat by way of heating the separator walls or the rotating built-in components and by the shearing energy of the rotating built-in components.Residual degassing of the solvent is effected before granulation, e.g. in the discharge extruder of the separator which is provided with rotating built-in components, through one or more degassing zones, optionally by the additional admixture of entraining media, such as inert gas or steam, for example.

Abstract: Thermoplastic moulding materials containingA. 15 to 80 parts by weight of a thermoplastic polycarbonate or polyester carbonate, andB. 4 to 40 parts by weight of a graft polymer ofB.1 20 to 60 weight % of one or more monomers onB.2 40 to 80 weight % of one or more graft bases having glass transition temperatures <0.degree. C., andC. 16 to 45 parts by weight of a thermoplastic, aromatic vinyl (co)polymer,wherein the graft base B.2 has an average particle size (d.sub.50 value) of 0.20 to 0.35 .mu.m and the weight ratio of components B:C is between 2:1 and 1:4.

Abstract: Moulding compounds the ABS type consisting of at least one resin matrix and a particulate graft-rubber polymer distributed therein and produced by emulsion polymerisation, wherein at least 70% of the graft-rubber particles (number) exhibit a structure of the rubber phase which can be detected by photographs taken with the aid of a transmission electron microscope and in which the individual particles contain irregular cellular inclusions of resin-forming polymer and the surface of the particles exhibits an irregularly jagged structure such that, for each particle illustrated, 5 to 30 of such jagged projections are present which differ from an idealised round particle (with a diameter d) by virtue of a diameter d+d/x with x=3 to 15, as well as a process for the manufacture of said moulding compounds.

Abstract: The present invention relates to resin compositions having a good compatibility of polyphenylene ether and polyamide and a natural color, which comprise (A) 5 to 95 parts by weight of a polyphenylene ether, (B) 1 to 50 parts by weight of a functionalized aromatic vinyl graft copolymer which is prepared by melt blending 100 parts by weight of a copolymer which is prepared by graft polymerizing 20 to 99 parts by weight of aromatic vinyl monomers onto 1 to 80 parts by weight of synthetic rubber polymer, 0.01 to 2 parts by weight of an organic peroxide and 0.01 to 10 parts by weight of reactive monomers having an unsaturated carboxylic acid or anhydride group, and (C) 5 to 95 parts by weight of a polyamide and optionally (D) up to 40 parts by weight of a synthetic resinous impact modifier.

Abstract: Elastomeric polypropylenes modified by grafting and blends thereof with isotactic polypropylenes modified by grafting, and the use thereof as compatibilizers or adhesion promoters for blends and metal composites.

Abstract: The invention relates to an aqueous polyester- and acrylate-based polymer dispersion, obtainable by free radical-initiated polymerization of at least(a) one (meth)acrylic acid ester,(b) one ethylenically unsaturated, at least monofunctional acid, and optionally(c) one ethylenically unsaturated monomer other than (a) and (b),or mixtures thereof with a polyester resin capable of undergoing a free radical-initiated polymerization. The invention further relates to the production of these aqueous polymer dispersions, to aqueous clear coat compositions containing said dispersions, and to the use thereof.

Abstract: A low molecular weight copolymer reaction product of a copolymer acid of an .alpha.-olefin and an unsaturated carboxylic acid, preferably an .alpha.,.beta.-ethylenically unsaturated carboxylic acid, and at least one amino acid compound. The present invention includes a method of preparing the copolymer reaction product. The reaction product has excellent compatibility with other polymers, particularly polyamides. The copolymer reaction product is useful in a method to flush water from pigments.

Abstract: An epoxy resin composition for semiconductor encapsulation use comprising an epoxy resin, a phenol resin, and an inorganic filler is improved by blending therein a component which is obtained by copolymerizing or homopolymerizing a reactive monomer having a vinyl group and an epoxy or phenolic hydroxyl group in a molecule thereof with or preferably in the presence of a thermoplastic elastomer or organic synthetic rubber. Alternatively, the modifying component (C) is obtained by copolymerizing a reactive monomer and a silane monomer with or preferably in the presence of a thermoplastic elastomer or organic synthetic rubber. The composition cures to products having improved thermal shock resistance and adherence.

Abstract: This invention relates to a blend of a polyester, an amine functionalized elastomer and agraft coupling agent.

Abstract: The invention relates to a polymer mixture which contains(A) 50 to 85 wt. % of a polyether block amide consisting of 30 to 60 wt. % of polyamide-12, polyamide-11 and/or polyamide-12,12 blocks and 70 to 40 wt. % of polyethylene glycol blocks,(B) 10 to 40 wt. % of a polyether block amide consisting of 65 to 85 wt. % of polyamide-12, polyamide-11 and/or polyamide-12,12 blocks and 35 to 15 wt. % of polyethylene glycol blocks, and(C) 5 to 40 wt. % of a poly(ethylene-co-vinylacetate-g-maleic anhydride) polymer consisting of 75 to 95 wt. % of ethylene, 5 to 25 wt. % of vinylacetate and 0.1 to 2 wt. % of maleic anhydride,wherein the data relating to wt. % for the constituents (A), (B) and (C) are with reference to the total amount of polymer mixture. The invention also relates to films produced from this polymer mixture and the use of these films to produce waterproof, water vapor permeable, wind resistant textile composite materials, dressing materials and hygiene items.

Abstract: This invention provides the following resin composition, method for producing the composition, resin slide material, organic solvent resist material and glass fiber reinforced composition obtained therefrom. A polycarbonate/polyolefin based resin composition exhibiting an improved polycarbonate/polyolefin compatibility prepared by melt kneadin (A) a polycarbonate resin; (B) a polyolefin resin; (C) a polyolefin resin that has been modified with at least one functional group selected from the group consisting of epoxy, carboxyl, and an acid anhydride groups; (D) a compound represented by the formula: HOOC--R--NH.sub.2 wherein R represents at lease one member selected from the group consisting of an alkene group, an alkylidene group, and an oligmethylene group containing 5 or more carbon atoms, and phenylene group and naphthylene group optionally substituted with an alkyl group; and optionally, (E) a styrene copolymer resin.

Abstract: The disclosure describes a flame-resisting resin composition comprising:(A) 90 to 99.5% by weight of a polyarylene sulfide; and(B) 0.5 to 10% by weight of a graft copolymer composed of an olefinic copolymer (a) having 30 to 59% by weight (based on the weight of said graft copolymer) of an .alpha.-olefin repeating unit and a glycidyl ester residue repeating unit of an .alpha.,.beta.-unsaturated mono-carboxylic acid, and at least one of polymers (b) having the repeating unit represented by the following formula (I):said olefinic copolymer (a) being branched or crosslinked with at least one of the polymers (b), ##STR1## wherein R represents a hydrogen atom or a lower alkyl group having from 1 to about 6 carbon atoms, X represents a benzyl group, --COOCH.sub.3, --COOC.sub.2 H.sub.5, --COOC.sub.4 H.sub.9, --COOCH.sub.2 CH(C.sub.2 H.sub.5)C.sub.4 H.sub.9, --CN, a phenyl group or a maleimide group.

Abstract: Homogeneous polymer blends are prepared from otherwise thermodynamically immiscible polymers, especially including block copolymers. Thus, polymers such as polystyrene/poly(methyl methacrylate) block copolymer or polystyrene/poly(1,2-butadiene) block copolymer are dissolved under pressure in supercritical fluid solvents such as chlorodifluoromethane and n-butane, respectively, and expanded through a fine nozzle. As the SCF solvent evaporates, the polymer deposits as a substantially homogeneous material.

Abstract: A thermoplastic resin composition superior in impact resistance, heat resistance, flexural rigidity, processability and solvent resistance which comprises: (A) 100 parts by weight of a resin composition comprising 5-95% by weight of a polyphenylene ether, or a polyphenylene ether and polystyrene, and 95-5% by weight of a polyamide resin; (B) 5-50 parts by weight of a modified saturated rubber obtained by grafting 5-100 parts by weight of an aromatic vinyl compound on 100 parts by weight of a saturated type rubber and allowing 0.05-10 parts by weight of a compatibilizing agent to react with said rubber; and (c) 0.05-20 parts by weight of a compatibilizing agent.

Abstract: A method of compatibilizing a blend of at least a hydrocarbon polymer with at least one other polymer which is incompatible with the hydrocarbon polymer, said method comprising adding to the polymer blend a compatibilizer which is an isoolefin/para-alkylstyrene copolymer represented by the formula ##STR1## in which R and R' can be hydrogen, alkyl, and the primary and secondary alkyl halides, "a" ranges from about 14 to about 70,000, "b" ranges from 0 to about 70,000, "c" ranges from 0 to about 70,000, "d" ranges from about 1 to about 70,000, X is a halogen, and Nu is a nucleophilic residue provided by a polymeric nucleophile.

Abstract: A crosslinked adhesive composition is provided comprising an epoxidized diolefin block polymer wherein the polymer is crosslinked through at least some of the epoxy functionality. A process to prepare this polymer is also provided. The preferred polymer is partially hydrogenated and lightly epoxidized.

Abstract: The invention provides a polymeric insulating material having a high dielectric breakdown voltage. The material comprises polypropylene which has been obtained in a yield of at least 300,000 g/g-Ti based on titanium in a catalyst upon polymerization, contains ash in an amount not greater than 40 ppm by weight when analyzed by completely burning the polypropylene in air, said ash containing titanium in an amount not greater than 1 ppm by weight based on the weight of the polypropylene, and also contains chlorine in an amount not greater than 2 ppm by weight and boiling n-heptane soluble matter in an amount not smaller than 1 wt. % but not greater than 10 wt. %. According to the invention, it is possible to further improve the dielectric breakdown voltage by adding to the polypropylene an inorganic oxide or hydroxide free of particles of 10 .mu.m and greater in diameter and having an average particle size not greater than 1 .mu.

Abstract: There are disclosed novel, solid, elastomeric block copolymers with improved resistance to cold flow wherein either 1) the terminal blocks are each a polymer (I polymer) of at least one conjugated diene I, e.g., isoprene, which contains at least five carbon atoms with at least one of each pair of double-bonded carbon atoms in the polymerized diene I units being additionally single-bonded to two carbon atoms; at least one middle or interior block is a hydrogenated polybutadiene (B polymer); and at least one middle or interior block is an essentially straight chain polyethylene (E polymer) resulting from the hydrogenation of a polybutadiene composed of at least 80% of 1,4- units; or 2) the terminal blocks are random IB copolymers of at least one diene I as previously defined and hydrogenated butadiene, and at least one middle or interior block is a straight chain polyethylene (E polymer) as previously defined.

Abstract: Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an amount effective to increase the amount of protein that will bind to the graft copolymer as compared with the base polymer. Also disclosed are polymer/protein compositions comprising a graft copolymer having a protein immobilized on the surface thereof, processes for the preparation of the above-described graft copolymers and compositions, methods of immobilizing proteins, and methods of immunoassay based on such immobilization.

Abstract: Graft copolymers comprising a poly-alpha-olefin base polymer selected from the group consisting of polyethylene, polypropylene, polystyrene, and compatible mixtures thereof, having grafted thereto an olefinic monomer. The grafted monomer is present in an amount effective to increase the amount of protein that will bind to the graft copolymer as compared with the base polymer.Also disclosed are polymer/protein compositions comprising a graft copolymer having a protein immobilized on the surface thereof, processes for the preparation of the above-described graft copolymers and compositions, methods of immobilizing proteins, and methods of immunoassay based on such immobilization.

Abstract: The invention relates to improved thermoplastic compositions composed of one or more thermoplastics (component A), and a stabilized MBS core shell graft copolymer (component B) formed from a rubber-elastic core based on polybutadiene, and a hard graft shell.The stabilized MBS core shell graft copolymer (component B) contains a special stabilization formulation of at least one hindered phenol, a phosphite, an organic sulfide, and optionally a pH buffer system. The stabilized MBS core shell graft copolymer improves the impact strength and heat aging properties of thermoplastic compositions and polyacetal compositions.The shaped articles produced from the improved thermoplastic compositions are particularly distinguished by an excellent high-temperature impact strength and a good heat aging performance.

Abstract: Polycarbonate compositions having excellent mechanical and thermal properties as well as high impact resistance are prepared by mixing an aromatic polycarbonate resin with a structured multiphase composite impact modifier. The structured multiphase composite impact modifier has a core particle of a rubbery particle having a glass transition temperature below -20.degree. C. and a second glassy polymer having a glass transition temperature above 20.degree. C., where the second polymer is present as discontinuous regions on the surface of the core particle.

Abstract: Synthetic resins contain, as essential components,A) from 20 to 95% by weight of a crosslinkable binder selected from the group consisting of the polymers, polyadducts or polycondensates having reactive centers in the form of hydroxyl, thio, primary and/or secondary amino groups and/or hydrophilic centers in the form of ammonium, sulfonium and/or phosphonium groups andB) from 5 to 80% by weight of polymers consisting of a core and one or more shells and furthermoreC) from 0 to 10% by weight of one or more crosslinking agents andD) from 0 to 10% by weight of a pigment formulation consisting of one or more pigments and a resin having surfactant properties andE) from 0 to 10% by weight of additives and/or assistants.

Abstract: The thermoplastic resin composition of the present invention is made of:(a) 5-95 weight % of polypropylene;(b) 95-5 weight % of a polyester; and(c) 2-70 parts by weight, per 100 parts by weight of the total of (a) + (b), of a polyolefin-polyester graft copolymer.The polyolefin-polyester graft copolymer is constituted by 10-90 parts by weight of a polyester having an intrinsic viscosity [n] of 0.30-1.20 and an end carboxyl group content of 15-200 milliequivalent/kg; and (B) 90-10 parts by weight of a modified polyolefin having an epoxy group or carboxyl group content of 0.2-5 mol % and a weight-average molecular weight of 8,000-140,000. This thermoplastic resin composition may further contain (d) a modified polypropylene grafted with an unsaturated carboxylic acid or its anhydride.

Abstract: A flame retardant thermoplastic resin composition which comprises (A) 50 to 90% by weight of a thermoplastic resin which is the base polymer and 50 to 10% by weight of a total of (B) a nitrogen-containing condensed phosphoric acid compound, (C) a comb-like polymer consisting of a polyethylene main chain and a polyoxyalkylene side chain and (D) a metal-containing compound having a carbonization accelerating effect, the amounts of the components (B), (C) and (D) being 5 to 49% by weight, 1 to 15% by weight and 0 to 10% by weight, respectively, in which the total amount of the components (A), (B), (C) and (D) is 100% by weight; a process for producing the composition; a flame-retardant consisting of the components (B), (C) and (D); and a process for producing the flame-retardant.

Abstract: A curable polyester molding composition incorporating an elastomeric low profile additive dispersed in voided rubbery particle form throughout the composition is used in association with a compatibilizing agent to form a molded thermoset article having very smooth, light reflective, class A surfaces and having a matrix fracture energy which is comparable to articles formed from similar or identical molding compositions which are free of low profile additives. The low profile additive is an epoxidized elastomer or block copolymer having at least one flexible elastomer block and one monovinyl aromatic block. The compatibilizing agent is a copolymer having a diene polymer backbone which is compatible with the elastomer or the flexible diene block of the low profile additive, with constituents which are compatible or reactive with the polyester being grafted or adducted onto the diene polymer backbone.

Abstract: Homogeneous polymer blends are prepared from otherwise thermodynamically immiscible polymers, especially including block copolymers. Thus, polymers such as polystyrene/poly(methyl methacrylate) block copolymer or polystyrene/poly(1,2-butadiene) block copolymer are dissolved under pressure in supercritical fluid solvents such as chlorodifluoromethane and n-butane, respectively, and expanded through a fine nozzle. As the SCF solvent evaporates, the polymer deposits as a substantially homogeneous material.

Abstract: A thermoplastic propylene resin composition of the present invention is obtained by blending an epoxy group containing copolymer (G) and a rubber-like material (H) and/or a modified rubber-like material (I) with a resin omposition composed of a polyamide resin (F) and a polypropylene type resin (E).The thermoplastic propylene resin composition can easily be processed into molded products, films or sheets by injection molding, extrusion molding or the like, giving products which have a good balance in various physical properties and a uniform and smooth appearance. It is suitable for purposes in which especially high heat resistance, impact resistance and low-temperature impact resistance are required.

Abstract: Novel thermoplastic olefin copolymers and blends comprising the same are prepared from precursor functionalized olefin polymers and functionalized addition polymers. Additionally, the thermoplastic olefin copolymers comprise ester linkages and sulfide linkages.

Abstract: A thermoplastic resin composition comprising a modified polyphenylene ether to which an amino group-containing monomer such as amino styrene is grafted and a propylene polymer which is modified with a compound having a functional group reactive with an amino group in a molecule. This composition is excellent in heat resistance, chemical resistance, impact resistance and appearance and used to produce a part which is required to have strength and heat resistance such as an automobile part.

Abstract: Graft copolymers are prepared by the reaction of an olefin polymer such as polyethylene or polypropylene with an ethylenically unsaturated t-alkylcarbamate compound. Said graft copolymers are capable of reaction with functionalized polyphenylene ethers to produce compatibilized polyphenylene ether-olefin polymer compositions.