Abstract: The present invention has for its object to provide a fire retardant resin composition which is not only halogen-free and, hence, eliminating the adverse effect to the environment and human physiology but also reflecting an excellent fire retardancy imparted to a polyphenol having inherently favorable physical properties and heat resistance. The present invention is a fire retardant resin composition comprising a polyphenol compound and an inorganic microfine particle, wherein said polyphenol compound has such a structure that aromatic units each having at least one phenolic hydroxyl group are connected to one another through an organic unit containing two or more carbon atoms, and said inorganic microfine particle is a product of hydrolysis and condensation of an alkoxide compound and/or a carboxylic acid salt compound.

Abstract: The invention relates to platelet-shaped pearlescent pigments that are coated with at least one mixed inorganic/organic layer for improving their application properties, and of these, particularly their mechanical properties, and to methods for the production thereof and to the use thereof. The said mixed inorganic/organic layer comprises at least one at least partially crosslinked inorganic metal-oxide component and an organic component. The organic component is at least one organic oligomer and/or polymer, which is covalently bonded, at least in part, to the inorganic network via network formers, wherein the coating comprises at least one mixed inorganic/organic layer, which mixed layer comprises, at least in part, an inorganic network having one or more inorganic oxide component(s) and at least one organic component, the organic component being, at least in part, an organic oligomer and/or polymer covalently bonded, at least in part, to the inorganic network via one or more organic network formers.

Abstract: The invention provides golf ball materials which include, in admixture, (A) an oxygen-containing inorganic metal compound, (B) one or more polymers selected from the group consisting of multi-component polyamides, and (C) an acid-containing polymer, and additionally includes, if the oxygen-containing inorganic metal compound (A) does not include a zinc cationic species, (D) a zinc ionomer. The invention also provides methods for preparing such golf ball materials, and golf balls made with the materials. The golf ball materials are multi-component polyamide blend compositions having an excellent flow and processability and a suitable hardness, making them ideal as materials for obtaining high-performance golf balls which are endowed with outstanding durability and scuff resistance without any loss in rebound resilience.

Abstract: The object is to provide a polyimide ink composition having good printing properties and good continuous printing properties, which composition can be dried at a low temperature of not higher than 220° C., and which composition gives a coating film, after being dried, having excellent dimensional stability, heat resistance, low modulus of elasticity, flexibility, resistance to warping, chemical resistance, adhesiveness with substrates, and plating resistance.

Abstract: Novel magnesium hydroxide flame retardants, a method of making them from a slurry, and their use.

Abstract: A golf ball material composed of (A) an oxygen-containing inorganic metal compound in the form of a particulate or a master batch capable of neutralizing at least some of the acid groups in an acid-containing polymer blend, (B) one or more polymer selected from among diene polymers, thermoplastic polymers and thermoset polymers, and (C) an acid-containing polymer is prepared by mixing component A in a blend of components B and C. The golf ball material has a good heat resistance, flowability and processability, and can be used to produce high-performance golf balls having durability, scuff resistance and optimal hardness without a loss of rebound.

Abstract: The invention relates to the use of at least one polymer containing at least one monomer selected from acrylic acid or methacrylic acid or mixtures thereof and at least one monomer which is the maleic anhydride as a dispersing and/or grinding aid agent in a fabrication process of an aqueous dispersion and/or suspension of mineral materials, wherein the molar ratio r (acrylic acid and/or methacrylic acid:(maleic anhydride) is strictly confined to the range between 2:1 and 0.1:1. Another object of the invention consists in the aqueous dispersions and suspensions of mineral materials thus produced and the use thereof in the fabrication of plastics, paper and paintworks.

Abstract: The present invention relates to an antifouling paint composition which is pro-environmental because it does not contain organotin and copper compound which are the major causes of maritime environmental pollution, and has excellent inhibitory effect on the adhesion of marine organisms on the surface. The antifouling paint composition of the present invention characteristically comprises a resin, tourmaline and an alkali metal, an alkali earth metal and/or an oxide thereof.

Abstract: Blends of a non-halogenated, formaldehyde-cured silicone rubber are described. The blend includes magnesium oxide and zinc borate. The compositions exhibit thermal stability at high temperatures as well as improved chemical resistance.

Abstract: A flame retardant is provided which has excellent dispersibility in resin ingredients and can give flame-retardant resin moldings excellent in flame retardancy and mechanical properties. The flame retardant comprises magnesium hydroxide particles, a higher fatty acid, preferably stearic acid, bonded to part of the surface of the magnesium hydroxide particles, and a silicone oil having reactivity bonded to that surface part of the magnesium hydroxide particles which does not have the higher fatty acid bonded thereto.

Abstract: A composite material includes a polymer and a colloidal metal oxide. The composite material has a Plasma Etch Index of 40 relative to a polymer absent the colloidal metal oxide.

Abstract: The present invention provides an organic inorganic composite powder which has a specific particle shape in accordance with to a washing solvent, which contains fine inorganic particles, and which easily disperses in water by: precipitating a metal salt dissolved in a reaction solvent from the reaction solvent through neutralization or reduction in the presence of a polymer or monomer dissolved in the reaction solvent; polymerizing the monomer after precipitation of the metal salt in the case where the monomer forms no composite with the metal salt during precipitation in the presence of the monomer; washing the obtained precipitate with a specific washing solvent; and drying the resultant.

Abstract: A heat conductive silicone rubber composition comprising (A) an organopolysiloxane containing, on the average, at least 0.1 silicon-bonded alkenyl radical and having a viscosity of 50-100,000 mPa·s at 25° C., (B) an organopolysiloxane containing, on the average, at least 2 SiH radicals and having a viscosity of 1-100,000 mPa·s at 25° C., (C) a heat conductive filler, (D) a platinum catalyst, and (E) a specific organopolysiloxane having a molecular weight of at least 10,000, is easy to handle and mold, and especially smooth in flow, even when heavily loaded with the filler.

Abstract: The invention is related to glossy, low- or zero-VOC aqueous paint compositions, comprising water based latex polymer, a hiding pigment, at least one low-VOC coalescence aid having a volatile organic content of less than 50 g/L, and a second inorganic pigment with particle size ranging from about 1 to 100 nanometers. The paint composition gives good block resistance and mechanical strength and can be adopted for paints with at least glossy and semi-gloss finishes.

Abstract: The present invention is intended to provide a polymeric composition useful as an electrical conduit covering occupying only small space, having relatively low melting point, and exhibiting improved flame retardant properties. A polymeric composition useful as an electrical conduit covering comprises 100 parts by weight of polyolefin polymer serving as a base polymer, 2 to 45 parts by weight of polyamide, and 60 to 90 parts by weight of metal hydroxide. The polyamide is a copolymer of polyamide 6 and polyamide 66.

Abstract: [Problems] To provide a cycloolefin addition polymer that is capable of satisfying high heat resistance and high refractive index simultaneously, a composite material of the cycloolefin addition polymer with an inorganic material, and a molded article thereof. [Means for Solution] A cycloolefin addition polymer consisting essentially of a cycloolefin monomer unit and containing as an essential component a norbornene monomer unit having an aromatic ring. The cycloolefin addition polymer is preferably a cycloolefin addition polymer that consists essentially of a norbornene monomer unit having an aromatic ring. The cycloolefin addition polymers are excellent in heat resistance and have a high refractive index. The composite material is comprised of the cycloolefin addition polymer and an inorganic material. The molded article is obtained by molding the cycloolefin addition polymer or the composite material.

Abstract: A thermally conductive silicone composition includes 25 to 50 volume % of a silicone, 30 to 60 volume % of a first heat conducting filler, and 15 to 40 volume % of a second heat conducting filler. The thermally conductive silicone composition has two heat conducting fillers with different sizes dispersed therein, thus the thermal impedance can be efficiently reduced.

Abstract: The present invention relates to an encapsulated epoxy resin composition containing an epoxy resin (A), a hardening agent (B), and magnesium hydroxide (C), the magnesium hydroxide (C) comprising magnesium hydroxide particles with its crystal appearance in a hexagonal column shape having two hexagonal top and bottom base faces in parallel with each other and six peripheral prism faces formed between the base faces and having a length in the c-axis direction of 1.5×10?6 to 6.0×10?6 m, and provides an encapsulated epoxy resin composition favorable as a sealer for VLSI's that is superior in flame resistance and also in reliability such as moldability, reflow resistance, moisture resistance and high temperature storage characteristics and an electronic component device containing an element sealed with the composition.

Abstract: Stabilizer system for chlorinated polymers, especially PVC, comprising at least one coordination-polymeric triethanolamineperchlorato(triflato)metal inner complex comprising the monomer unit of the formula (A) The stabilizer system may additionally comprise substituted cyanoacetylureas or/and 6-aminouracils or/and 3-aminocrotonic esters or/and hydantoins or/and monomeric or polymeric dihydropyridines or alkaline earth metal hydroxides or/and hydrotalcites or/and dawsonites or/and zeolites or/and glycidyl compounds or/and cyanamides or/and cyanoguanidines or/and melamines. In addition, phosphites or/and sterically hindered amines or/and NOR-HALS compounds may be present.

Abstract: Disclosed is a paint composition having high far-infrared emissivity, antibiotic activity and solvent resistance and a precoated metal sheet for home appliances, coated with the paint composition. The paint composition includes a thermosetting resin, 9-60 parts by weight of ceramic powder and 0.2-4.0 parts by weight of phosphoric acid, based on 100 parts by weight of the thermosetting resin, is provided, and a precoated metal sheet coated with such a paint composition is also provided. The paint composition and the precoated metal sheet coated with the paint composition manifest high far-infrared emissivity and antibiotic activity, and as well, have storage stability and solvent resistance increased by neutralizing the alkalinity of ceramic powder using phosphoric acid. Further, a silane compound and a curing catalyst are additionally used to increase gloss and processability.

Abstract: Disclosed are low temperature, moisture curable coating compositions, related coated substrates, and methods for coating a substrate. The coating compositions include an ungelled, secondary amine-containing Michael addition reaction product of reactants including a compound comprising more than one site of ethylenic unsaturation, and an aminofunctional silane.

Abstract: Compositions having good impact performance can be made from a thermoplastic (e.g., a polyolefin such as polypropylene or HDPE) and an ethylene multi-block copolymer. The compositions are easily molded and often have particular utility in making, for example, automotive facia, parts and other household articles.

Abstract: The present invention provides a producing method of powder particles having an average particle diameter on the order of submicrons. Specifically, the producing method is a producing method of powder particles obtained by grinding a product to be ground by using plural grinding media, wherein the grinding media including at least one kind (grinding medium A) having an average particle diameter of 0.01 to 5 times and at least one kind (grinding medium B) having an average particle diameter of 10 to 450 times, with respect to the average particle diameter of the product to be ground before being ground, are used.

Abstract: A fire resistant polymeric composition which forms a target mineral on firing of the polymeric composition including 20-60 wt % of an organic polymer; 2-30 wt % of a magnesium compound that oxidises to form MgO; and 5 to 30 wt % silica. The composition preferably includes an alkaline earth metal borosilicate compound, the alkaline earth metal borosilicate compound forming a ceramic composition at an elevated temperature.

Abstract: Lime pellets can be used in preparing asphalt compositions. The pellets are characterized as having a substantially rigid structure with a dimension greater than about 1.5 mm and being compatible with a hot mix asphalt so as to dissolve in liquid asphalt. The pellets condition an end product of asphalt pavement by being dissolved into a hot mix asphalt composition during the manufacture of such an asphalt. The method of conditioning includes providing the lime pellets, and mixing the lime pellets with a hot mix asphalt ingredient, wherein the ingredient is at least one of an aggregate or asphalt cement. The asphalt and lime pellets are heated to a temperature sufficient for the lime pellets to be dissolved.

Abstract: A golf ball material composed of (A) an oxygen-containing inorganic metal compound in the form of a particulate or a master batch capable of neutralizing at least some of the acid groups in an acid-containing polymer blend, (B) one or more polymer selected from among diene polymers, thermoplastic polymers and thermoset polymers, and (C) an acid-containing polymer is prepared by mixing component A in a blend of components B and C. The golf ball material has a good heat resistance, flowability and processability, and can be used to produce high-performance golf balls having durability, scuff resistance and optimal hardness without a loss of rebound.

Abstract: The present invention provides a golf ball material made of an ionomer blend composition of (a) at least one E/X copolymer and/or E/X/Y terpolymer and (b) at least one polyfunctional higher aliphatic acid with two or more functionalities that has a molecular weight of at least about 200 but less than about 1,500, in which components (a) and (b) are neutralized with (c) an oxygen-containing inorganic metal compound. The copolymer and terpolymer of component (a) is one or a mixture of two or more selected from the group consisting of copolymers and terpolymers which is partially neutralized with metal ions, copolymers and terpolymers which are completely neutralized with metal ions, and unneutralized copolymers and terpolymers. The golf ball material has a good thermal stability, flow properties and moldability, making it suitable for injection molding.

Abstract: The present invention relates to a hydraulic binder for low-cement content concrete. The ground mineral portion of this cement comprises an under-calcinated alumina the BET specific surface of which ranges between 8 m2/g and 20 m2/g. Said binder enables to formulate a concrete the use properties of which remain stable and constant whatever the type of silica fume used, and capable of being used over a wide working temperature range for implementation. The invention also relates to a preparation for refractory concrete, a refractory concrete and a method for making a refractory concrete.

Abstract: Disclosed is a composite material including from about 50 wt % to about 75 wt % (based on the total weight of the composite material) of inorganic material, wherein the inorganic material includes from about 30 wt % to about 50 wt % (based on weight of the inorganic material) of a first inorganic filler having an average particle size ranging from about 0.5 mm to about 5 mm; and from about 50 wt % to about 70 wt % (based on weight of the inorganic filler) of a second inorganic filler having an average particle size ranging from 0.02 mm to about 0.1 mm; and from about 25 wt % to about 50 wt % (based on total weight of the composite material) of a thermosetting polymeric resin.

Abstract: Pulverulent polycondensation products are described, consisting of a) 5 to 95% by weight of a polycondensation product based on an aromatic or heteroaromatic compound (A) having 5 to 10 C atoms or heteroatoms having at least one oxyethylene or oxypropylene radical and one aldehyde (C) selected from the group consisting of formaldehyde, glyoxylic acid and benzaldehyde or mixtures thereof, and b) 5 to 95% by weight of a finely divided mineral carrier material having a specific surface area of 0.5 to 500 m2/g (according to BET as specified in DIN 66 131). The pulverulent polycondensation products according to the invention are outstandingly suitable in construction material mixtures in an amount of from 0.1 to 5% by weight, based on the weight of the construction material. The pulverulent polycondensation products have a number of advantages here, such as, for example, excellent storage stability, good liquefying action at low dosage and industrially simple production.

Abstract: Disclosed are an intermediate transfer belt for use in a laser printer, a fax machine and a copier, and a production method thereof. Specifically, an intermediate transfer belt including silicone modified polyimide resin and a production method thereof are provided, thereby realizing a monolayer intermediate transfer belt having excellent electrical properties, water repellency and heat dissipation properties and good mechanical strength. Further, even without the additional use of an adhesive layer for adhesion to a fluorine resin layer and fluorine resin, the intermediate transfer belt can exhibit satisfactory properties, and process efficiency can be maximized.

Abstract: The invention relates to new universal pigment preparations having very good thermal stability and weathering stability as virtually foam-free aqueous, solventborne, and solvent-free pigment preparations and to their use in aqueous, solventborne or solvent-free coating materials, such as paints, adhesives, inks, including printing inks, and for coloring plastics.

Abstract: Disclosed herein are metal-organic frameworks of metals and boron rich ligands, such as carboranes and icosahedral boranes. Methods of synthesizing and using these materials in gas uptake are disclosed.

Abstract: Compositions comprising a) one or more polyolefins which have a ring/ball softening point in the range from 50 to 165° C., a melt viscosity measured at a temperature of 170° C. in the range from 20 to 40 000 mPa·s and a glass transition temperature Tg of not more than ?10° C. and b) one or more inorganic filler(s). The compositions of the invention are suitable for producing building materials, in particular for the production of connecting elements for fastening articles to surfaces, in particular pegs.

Abstract: The present invention relates to compositions which comprise at least one organic (meth)acrylate, zinc(II) dimethacrylate and at least one metal oxide of the formula MO or M2O3 of a di- or trivalent metal selected from the group consisting of zinc and the main group metals. The compositions are stable in storage and on hardening give flexible materials which even at elevated temperatures still have good adhesion to various substrates and have good mechanical properties.

Abstract: A thermoplastic polyolefin composition comprising: (1) 30-70 wt. % of an heterophasic propylene polymer; (2) 20-60 wt. % of a copolymer of ethylene with a comonomer selected from the group consisting of C3-6 ?,?-unsaturated carboxylic acids, C1-8 alkyl esters of a C3-6 ?,?-unsaturated carboxylic acid and mixtures thereof; and (3) 2-20 wt. % of a metal compound selected from the group consisting of: acetates, stearates, hydroxides and oxides of zinc, magnesium, calcium, sodium and mixture thereof.

Abstract: Exemplary embodiments provide intermediate transfer members that can be used in electrostatographic devices and methods for using them in forming an image. The disclosed intermediate transfer members can include a plurality of nanotubes with high electrical conductivity, high thermal conductivity, and/or low humidity sensitivity. The hydrophobicity of the nanotubes can be controlled by covalently grafting hydrophobic components onto one or more nanotubes; surface treating one or more nanotubes; and encapsulating one or more nanotubes with hydrophobic components. In an exemplary embodiment, the nanotubes can be dispersed in polymer matrices and/or formed on the surface of polymer matrices of the intermediate transfer members. The intermediate transfer members can take various forms of belts, sheets, webs, films, rolls, tubes or any shape that can provide a smooth surface and rotatable function.

Abstract: The present invention is an improved PVB composition comprising an adhesion control agent which is a mixture of potassium and magnesium salts in a ratio of from about 0.05:1 to about 5:1, by weight, potassium salts to magnesium salts. The present invention also describes a method for improved control of adhesion of PVB to glass.

Abstract: Transparent and colorable elastomeric compositions are provided. The transparent elastomeric compositions can be covulcanized with rubbers such as polybutadiene, polyisoprene, styrene-butadiene rubber, styrene-isoprene-butadiene rubber, isoprene-butadiene rubber, or natural rubber and polybutene processing oil. The colorable rubber compositions have sufficient properties to function as a reinforcing member in a shoe sole or automobile tire. Preferably, both the transparent and colorable elastomeric compositions include at least one copolymer of a C4 to C7 isoolefin and a p-methylstyrene, silica and a high cis-polybutadiene rubber.

Abstract: A composition comprises a polyester-polycarbonate polymer comprising isophthalate-terephthalate-resorcinol ester units and carbonate units, a first polyester comprising repeating units derived from cyclohexane dicarboxylic acid or a chemical equivalent thereof, and a C2-8 aliphatic diol or a chemical equivalent thereof, and a second polyester comprising units derived from isophthalic and/or terephthalic acid and a chemical equivalent thereof, and a C2-8 aliphatic diol or a chemical equivalent thereof. The composition can be extruded into pellets that are clear and colorless. The composition can further be molded into articles having a percent haze value less than or equal to 10 percent, and total luminous transmittance value of greater than or equal to 70 percent, measured in accordance with ASTM D1003-00. Also disclosed is a method for forming the compositions, and articles prepared therefrom.

Abstract: A curing accelerator for a curing resin of the invention is represented by the following general formula (I). R1 to R3 in the formula (I) represent a hydrogen atom, or a substituted or unsubstituted hydrocarbon group having 1 to 18 carbon atoms, and each may be the same or different. Two or more of R1 to R3 may be bonded to have a ring structure. R4 to R7 represent a hydrogen atom or a substituted or unsubstituted monovalent organic group having 1 to 18 carbon atoms, and each may be the same or different. Y? represents a group in which one proton is discharged from a monovalent group having 0 to 18 carbon atoms and having at least one proton capable of being discharged. Two or more of R4 to R7 and Y? may be bonded to have a ring structure. The curing accelerator exhibits superior curability under moisture absorption, flow properties, reflow cracking resistance and high-temperature storage characteristics.

Abstract: Methods are disclosed comprising: (a) mixing (i) an aqueous solution of at least one salt of at least one metal selected from the group consisting of aluminum, magnesium, cerium, iron, manganese, cobalt, nickel, titanium, zinc, zirconium and mixtures thereof with (ii) an aqueous solution of at least one polymer, at a pH value of 3 to 13 and at a temperature T1 of 0 to 50° C. to form a mixture; and (b) heating the mixture at a temperature T2 of 60 to 300° C. to form an aqueous suspension of surface-modified nanoparticulate particles comprising at least one compound selected from the group consisting of oxides, hydroxides, and oxide hydroxides of the at least one metal; along with powders prepared therefrom and uses therefore.

Abstract: A water-based cement for producing tyres includes 5 to 80% by weight of water, 10 to 60% by weight of a cross-linkable unsaturated-chain polymer base, 1 to 15% by weight of emulsifiers, and a quantity of metal oxide depending on the desired degree of adhesion.

Abstract: The present invention relates to a thermoelastic polyolefin-based elastomer sheet composition for water based coating treatment, which comprises a partially crosslinked thermoelastic polyolefin-based elastomer resin, a non-crosslinked thermoelastic polyolefin-based elastomer resin, a polypropylene resin, an ethylene octene rubber resin, a linear low density polyethylene resin, polyethylene master batch containing a lubricant, and an inorganic filler, the composition being useful for vehicular inner parts (e.g., crash pad) due to its superior elongation, heat resistance, humidity resistance and molding property.

Abstract: Lime pellets can be used in preparing asphalt compositions. The pellets are characterized as having a substantially rigid structure with a dimension greater than about 1.5 mm and being compatible with a hot mix asphalt so as to dissolve in liquid asphalt. The pellets condition an end product of asphalt pavement by being dissolved into a hot mix asphalt composition during the manufacture of such an asphalt. The method of conditioning includes providing the lime pellets, and mixing the lime pellets with a hot mix asphalt ingredient, wherein the ingredient is at least one of an aggregate or asphalt cement. The asphalt and lime pellets are heated to a temperature sufficient for the lime pellets to be dissolved.

Abstract: In the method for the manufacture of a coating (10) having a columnar structure, preferably a dense structure, a coating material in the form of primary corpuscles (1) is injected with a carrier gas into a thermal process beam. The coating material is transformed in the process beam into a vapor phase and is deposited as condensate in the form of a columnar coating on a substrate (100). The primary corpuscles are liquid droplets or they are formed in each case by an agglomerate of particles (2) which are held together by cohesive forces of a connecting medium or by adhesive forces. The liquid droplets include a chemical precursor of the coating material in the form of a salt solution and are transformed by thermal action in the process beam into secondary corpuscles containing particles (2). The primary or secondary corpuscles are disintegrated in the process beam by mechanical and thermal interaction.

Abstract: The present disclosure is directed generally to polyester fiber reinforced polypropylene resin pellets and methods for producing therein. The polyester fiber reinforced polypropylene resin pellets include at least 25 wt % polypropylene based polymer; from 10 to 40 wt % polyester fiber; from 0 to 60 wt % inorganic filler; and from 0 to 0.2 wt % lubricant. The polyester fiber is incorporated into the resin pellets by feeding chopped fiber or continuous fiber unwound from one or more spools. Articles molded from the polyester fiber reinforced polypropylene resin pellets exhibit a drop dart impact resistance that is dependent on the pellet length and whether the PET fiber is incorporated as chopped fiber or continuous fiber during the extrusion compounding process. Articles molded from the polyester fiber reinforced polypropylene resin pellets find application as automotive parts, household appliance parts, or boat hulls.

Abstract: Provided is a heat conductive silicone grease composition, including: an organopolysiloxane containing 2 or more alkenyl groups bonded to silicon atoms within each molecule, an organopolysiloxane with a specific structure and with a kinematic viscosity at 25° C. of 10 to 10,000 mm2/s, an alkoxysilane containing specific substituent groups, an organohydrogenpolysiloxane containing 2 or more SiH groups within each molecule, a heat conductive filler, a platinum-based catalyst, and an addition reaction retarder. The heat conductive silicone grease composition exhibits high thermal conductivity, has excellent fluidity prior to curing and therefore exhibits favorable workability, is capable of filling fine indentations and therefore reduces contact resistance, and is also able to prevent oil separation and bleeding of the heat conductive material following curing, meaning the composition exhibits excellent heat radiation performance and reliability.

Abstract: The present invention relates to a process and a product of forming polymer (especially PVC) nanocomposites with a variety of nanofillers. The present invention provides a method for forming a polymer nanocomposite, comprising powder mixing a composition comprising polymer resin, a nanofiller, and a coupling agent for a residence time of about 4 to about 8 minutes to form a dry blend and extruding the dry blend in an extrusion process. Additionally, the present invention relates to a polymer nanocomposite formed by a process, comprising powder mixing a polymer resin, a nanofiller, and a coupling agent for a residence time of about 4 to about 8 minutes to form a dry blend and extruding the dry blend in an extrusion process to achieve homogeneous dispersion of nanofillers in the polymer matrix.

Abstract: The present invention provides a polypropylene resin composition prepared by mixing a polypropylene master batch, a high crystalline polypropylene, an ethylene-styrene copolymer rubber, an ethylene-?-olefin rubber and an inorganic filler. The polypropylene resin produced has reduced swirl marks, superior melting tension, fluidity, foaming magnitude, impact resistance, and cooling rate, and is useful for construction of vehicle interior parts.