Abstract: In a first aspect, the present invention is directed to a rubber composition comprising 70 phr to 90 phr of styrene butadiene rubber, wherein said styrene butadiene rubber comprises a first styrene butadiene rubber having a glass transition temperature within a range of ?49° C. to ?15° C. and a second styrene butadiene rubber having a glass transition temperature within a range of ?50° C. to ?89° C. Furthermore, the rubber composition comprises from 10 phr to 30 phr of one or more of natural rubber and synthetic polyisoprene rubber, 100 phr to 200 phr of silica, and at least 25 phr of at least one terpene resin having a weight average molecular weight (Mw) of at most 1000 g/mol. Moreover, the invention is directed to a tire comprising such a rubber composition, in particular in the tread of the tire.

Abstract: The present disclosure provides a thermoplastic resin composition having high rigidity and a low coefficient of linear thermal expansion and a molded article including the same. Specifically, the thermoplastic resin composition includes a first polypropylene resin having crystallinity of 50% to 80%, a second polypropylene resin having a coefficient of linear thermal expansion of 70 ?m/m·° C. to 90 ?m/m·° C., an elastomer, and an inorganic filler.

Abstract: A molded article includes a first plateable region spaced apart from a second plateable region the first plateable region by a barrier of electrically insulating material. Each of the plateable regions include an associated plateable layer of electrically conductive material for being electroplated with a different plateable finish. Several different geometries and configurations of the barrier and/or the plateable regions are provided to prevent migration of plating material from one of the plateable regions acting as bipolar electrode while another one of the plateable regions is being electroplated. A non-plateable insert may be disposed between the plateable regions to prevent migration of plating material from one of the plateable regions onto the other one of the plateable regions. A conducive robber in electrical communication with one of the one of the plateable regions, and which may be removable, may also be used to prevent migration of plating material.

Abstract: This invention relates to eco-friendly solutions and gels for making high strength ultra-high molecular weight polyolefin (UHMWPO) fibers, films, filters, membranes by solution and gel spinning techniques. This invention also makes soft, strong, oriented, and elastic fibers from styrenic block copolymers. The polymers are first dissolved or dispersed in a cyclic terpene. In some embodiments, the fibers are extruded or drawn from the solution or gel, and cooled to form a gel filament. In some embodiments, the fibers and films are soft and elastic by making the spinnable solution or gel from polyolefin and styrenic block copolymers or other elastomeric polymers in cyclic terpene. In some embodiments the fibers and films produced can be oriented by stretching or drawing in the gel state before and/or during and/or after removal of cyclic terpene.

Abstract: The use of magnesium oxide for increasing the rate of crosslinking and/or the crosslinking density of at least one crosslinkable polymer is described in addition to a composition that can be employed in this use, comprising: from 30 to 80% by weight of a crosslinking co-agent, from 0.5 to 10% by weight of an organic peroxide, from 15 to 60% by weight of magnesium oxide, and from 0 to 40% by weight of one or more crosslinkable polymers. An article obtained from this composition is also described.

Abstract: A hot-melt composition includes, with respect to 100 parts by mass of (A) a hydrogenated styrene thermoplastic elastomer having styrene-based polymer blocks at both ends and a hydrogenated diene polymer block at a middle portion and having a mass-average molecular weight of 250,000-600,000, 20-150 parts by mass of (B) a first styrene-based tackifying resin having a softening point of 135-160° C., 100-400 parts by mass of (C) a second styrene-based tackifying resin having a softening point of 105-135° C., 100-500 parts by mass of (D) a third tackifying resin for the hydrogenated diene polymer block having a softening point of 100-160° C. and 500-1,500 parts by mass of (E) a liquid softener. The hot-melt composition has excellent adhesion and easy peel ability, and is a material suitable as a sealing material for a lighting device of an automobile or the like.

Abstract: The present invention aims to provide an adhesive composition which exhibits high adhesive property not only to the conventional polyimide and polyester film but also to a metal substrate, can achieve high solder heat resistance and exhibits excellent low-dielectric characteristics. According to the present invention, there is provided an adhesive composition containing an acid-modified polyolefin (a), an oligo-phenylene ether (b) having a number-average molecular weight of 3000 or less, and an epoxy resin (c), wherein the adhesive composition satisfies the following requirement(s) (A) and/or (B): (A) The adhesive composition contains more than 20 parts by mass and 60 parts by mass or less of the epoxy resin (c) to 100 parts by mass of the acid-modified polyolefin (a); (B) The adhesive composition further contains a polycarbodiimide (d).

Abstract: The present invention provides a polymer composition for fibers or non-woven fabrics, comprising a vinyl aromatic based copolymer and 0 to 30 wt % of an olefin based polymer based on the total weight of the polymer composition. The vinyl aromatic copolymer is represented by a formula A1-B-A2, wherein block A1 and block A2 are the same or different vinyl aromatic blocks, block A1 or block A2 having 3,800 to 4,800 of a peak molecular weight, and block B is a hydrogenated conjugated diene block. A vinyl structure content of a conjugated diene monomer content in the vinyl aromatic based copolymer is from 32 wt % to 50 wt %; and a melt flow index (MFI) of the vinyl aromatic based copolymer is 20 g/10 min˜60 g/10 min (230° C., 2.16 kg). The present invention also provides the fibers or the non-woven fabrics made from the polymer composition.

Abstract: A sandwich-type, composite component having an injection molded backside protective covering including 3-D structures which provide at least one pattern at an outer surface of the component is provided. The component includes a first outer layer having an outer surface, a second outer layer and a core bonded to and positioned between the outer layers and having a plurality of cavities. The covering is integrally formed from at least one elastomeric material and includes the 3-D structures bonded to the outer surface by injection molding. The 3-D structures are sized, shaped and arranged in one or more patterns at the outer surface. The one or more patterns may form a textured surface finish, a logo or indicia such as instructions at the outer surface. The component may be a vehicle interior component such as a vehicle load floor component.

Abstract: Provided is a rubber composition that achieves both wet performance and low loss property while delivering excellent dry handling performance. A rubber composition comprises: a rubber component; and a styrene-alkylene block copolymer, wherein a total styrene content of the styrene-alkylene block copolymer is 30 mass % or more.

Abstract: A thermoplastic elastomer compound includes acrylic block copolymer and functionalized polysiloxane. Polymeric articles formed from the thermoplastic elastomer compound can have improved stain resistance, while also achieving other desirable properties such as low tackiness (i.e., low coefficient of friction) and good clarity (i.e., low haze).

Abstract: The invention features hot melt adhesive compositions including from 50% by weight to 95% by weight of a non-single site catalyzed amorphous poly alpha-olefin copolymer derived from propylene and at least one monomer selected from the group consisting of butene and hexene and having a viscosity of no greater 10,000 cP at 190° C. and from 5% by weight to 45% by weight of a polybutene-1 polymer.

Abstract: This invention relates to a hot melt adhesive composition. The hot melt adhesive composition according to the present invention comprises at least one hydrogenated thermoplastic block copolymer with a melt index greater than or equal to 30 grams per 10 minutes at 190° C./2.16 kg; and at least one polyolefin with a melt viscosity less than or equal to 2000 cPs at 190° C. The hot melt adhesive composition according to the present invention can be applied at low temperature, has excellent T peel strength and low odor after being applied in the disposable products.

Abstract: A surface-treated metal sheet for adhesion to polyolefin includes a metal sheet, and a resin layer provided on at least one surface of the metal sheet. The resin layer contains an acid- modified polyolefin, the acid-modified polyolefin contains a first acid-modified polyolefin having an acid value of 5 mgKOH/g or less, particularly 4 to 5 mgKOH/g, and a second acid- modified polyolefin having an acid value of 20 mgKOH/g or more and a melting point of higher than 90° C., and a difference between a melting point of the first acid-modified polyolefin and the melting point of the second acid-modified polyolefin is 0° C. or more and less than 40° C. The resin layer has a surface roughness of 12 ?m or less in terms of arithmetic average roughness Ra.

Abstract: A prepolymer is prepared by subjecting a compound of Formula (I) and a vinyl-containing compound to a prepolymerization reaction, and a resin composition includes the prepolymer. The vinyl-containing compound includes bis(vinylphenyl) ethane, divinylbenzene, modification of divinylbenzene or a combination thereof. A ratio in part by weight of the compound of Formula (I) to the vinyl-containing compound in the prepolymerization reaction is 8:2 to 6:4. The resin composition includes the prepolymer and an additive, and an article made from the resin composition may include a resin film, a prepreg, a laminate or a printed circuit board.

Abstract: A foamed article formed by foam injection molding or foam extrusion of a composition is disclosed. The article is formed from a molding composition consisting essentially of: 100 phr of at least two different hydrogenated styrenic block copolymers (HSBC), a first HSBC and a second HSBC, having different molecular weights, a molecular weight ratio of at least 1.2:1, respectively; and a weight ratio of ranging from 5:95 to 95:5, respectively; 10-55 phr of a polypropylene having a melt flow of at least 2 g10/min; and optionally up to 55 phr of a plasticizer, selected from hydrocarbon based oils, fatty acids, triglyceride oils, and mixtures thereof. The composition has a melt flow rate of 2-50 g/10 min, a Shore A hardness of 60-90, a melt strength (F) of at least 0.010 N, and a melt strength (V) of at least 10.

Abstract: Methods are described for the preparation of tapered styrene-butadiene copolymers for use as partial or full oil replacements in rubber compositions. The resulting rubber compositions exhibit improved storage modulus and wear resistance properties.

Abstract: The invention relates to a composition comprising: (A) a propylene-based polymer which is a propylene homopolymer or a propylene copolymer consisting of at least 90 wt % of propylene monomer units and at most 10 wt % of ethylene monomer units and/or an ?-olefin monomer units having 4 to 10 carbon atoms, (B) an elastomer of ethylene and an ?-olefin comonomer having 4 to 10 carbon atoms, wherein the elastomer has a density of 0.850 to 0.865 g/cm 3 and a melt flow index of 0.1 to 20 dg/min measured in accordance with ASTM D1238 using a 2.16 kg weight and at a temperature of 190° C. and (C) a block copolymer comprising a terminal block comprising styrene or alpha-methylstyrene.

Abstract: A block copolymer composition is disclosed herein. In some embodiments, a block copolymer composition has a weight average molecular weight (Mw) of 70,000 g/mol to 120,000 g/mol, a polydispersity index (PDI) of 1.0 to 2.0, a glass transition temperature (Tg) of ?55° C. to ?30° C., and a melt index (MI), measured at 230° C. and a loading condition of 5 kg, of 0.2 g/10 minutes to 3.0 g/10 minutes. The block copolymer composition has excellent processability.

Abstract: The present invention relates to a spray adhesive essentially consisting of: (i) from 5 to 30% by weight of an adhesive mixture comprising one or more styrenic block copolymers, and optionally one or more tackifying resins, and either (ii) from 20 to 40% by weight of a mixture comprising hydrocarbon solvents and propellants, and (iii) from 30 to 75% by weight of a VOC-exempt diluent. The present invention also relates to a portable aerosol can, spray cylinder, cannister, or container onto which a nozzle for spraying can be provided, containing the spray adhesive.

Abstract: The invention, belonging to the field of biological treatment of pollutants and functional materials, presents a method for the preparation of biofilm carrier with biochar fixed by thermoplastic resin. Extrusion grade polyethylene/polypropylene particles are used as the basic material. One or some combination of plant biochar, straw biochar, rice husk biochar, shell biochar, excess sludge and animal waste biochar are used as the functional material. The biofilm carrier with biochar fixed by thermoplastic resin is prepared by the screw extrusion process, which is a simple, flexible and controllable method, and possesses strong adaptability. The reactor with these biofilm carriers has high removal efficiency of refractory organic pollutants.

Abstract: In an embodiment, a slit film tape composition includes a propylene-based elastomer comprising 1-16 wt % ethylene based on a total weight of the propylene-based elastomer, the propylene-based elastomer having a melt flow rate (MFR) of 1-50 g/10 min; a polypropylene comprising 10-100 mol % propylene based on a total weight of the polypropylene, the polypropylene having a MFR of 2-35 g/10 min; and a filler. In another embodiment, a slit film tape composition includes a propylene-based elastomer comprising from 5-30 wt % ethylene based on a total weight of the propylene-based elastomer, the propylene-based elastomer having a MFR of 35-60 g/10 min; a polypropylene comprising 10-100 mol % propylene based on a total weight of the polypropylene, the polypropylene having a MFR of 2-35 g/10 min; and a filler.

Abstract: A thermoplastic elastomer composition and method of making the thermoplastic elastomer are disclosed. The thermoplastic elastomer may comprise a polymer blend. The polymer bland may comprise a non-crosslinked elastomer, oil, polyethylene, and antioxidant. The oil may be from about 15 wt. % to about 50 wt. % oil. The polyethylene may be from about 3 wt. % to about 30 wt. %. The antioxidant may be from about 0 to about 0.5 wt. %.

Abstract: Disclosed is a propylene-based resin composition comprising more than 15 parts by mass and 40 parts by mass or less of an ethylene/?-olefin copolymer (E1) and 4 to 20 parts by mass of an ethylene/?-olefin/diene copolymer (E2), and comprising also a propylene-based polymer (P1) having an amount of a n-decane-soluble part at 23° C. of 5 to 25% by mass, wherein the ethylene content of the n-decane-soluble part is more than 40% by mass and 60% by mass or less, a propylene homopolymer (P2) and an inorganic filler (F) [providing that the total amount of the components (P1), (P2), (E1), (E2) and (F) is taken as 100 parts by weight]. The propylene-based resin composition is capable of producing a molded article which is excellent in mechanical properties, unnoticeable flow marks, low gloss.

Abstract: The platability improver of the present invention comprises heterophasic-polymer particles having a coefficient of variation in particle diameter of 40%-90%. It is preferable that the proportion of polymer particles each having a particle diameter of 0.05 ?m or larger be 80% by volume or more with respect to all the heterophasic-polymer particles and the proportion of polymer particles each having a particle diameter of 0.05 ?m or larger but smaller than 0.15 ?m be 10%-60% by volume with respect to all the heterophasic-polymer particles.

Abstract: A tackifier to modify the Tan Delta of midblock segments of a hydrogenated styrenic block copolymer in a thermoplastic elastomer compounds aids in rendering the HSBC TPE more effective as an overmolding compound having a low percentage compression set value when measured at the high temperature compression set standard. The HSBC TPE can overmold effectively upon polar polymeric substrates depending on the bonding agent chosen.

Abstract: The present invention provides a water-based ink comprising nanopigment micelles, said nanopigment micelles comprising a pigment particle and a polymeric dispersing agent around said pigment particle, whereby said pigment particles have an average particle size between 100 nm and 250 nm. The invention also relates to a printed textile and a dyeing and printing process using said water-based ink.

Abstract: One aspect of the present invention is a hot melt composition containing a silane coupling agent, a thermoplastic polymer, a softener, and a catalyst, wherein the silane coupling agent is hydrolyzed to a compound having a boiling point of 70 to 180° C.

Abstract: The invention relates to a cable comprising at least one electrically insulating layer obtained from a polymer composition comprising at least one polypropylene-based thermoplastic polymer material and at least one inorganic filler chosen from silicates, boron nitride, carbonates, and a mixture thereof, and to a process for preparing said cable.

Abstract: The present invention is directed to propylene composition applicable for high flow automotive exterior compounds with excellent surface appearance, said composition comprising a modified polypropylene composition and an inorganic filler.

Abstract: Provided is a polybutylene terephthalate resin composition containing, with respect to 100 parts by mass of (A) a polybutylene terephthalate resin, (B) a total of 30 to 60 parts by mass of at least two different brominated flame retardants selected from the group consisting of a brominated epoxy compound, a brominated polycarbonate compound and a brominated polystyrene compound, (C) 5 to 15 parts by mass of an antimony compound, (D) 5 to 30 parts by mass of an elastomer, and (E) 0.5 to 3 parts by mass of a mold-release agent.

Abstract: A polypropylene-based resin composition containing a polypropylene-based resin (A) which has a melting endotherm (?H-D) of 0 J/g or more and 40 J/g or less and which does not exhibit an observable melting point (Tm-D) or has a melting point (Tm-D) of 0° C. or higher and lower than 90° C., and a polypropylene-based resin (B) which has a melting endotherm (?H-D) of more than 40 J/g and 125 J/g or less.

Abstract: An optical film having a heat resistance of 120° C. or higher, a tear strength of 1.5 N/mm or more, a water vapor transmission rate of 50 g/m2·day or less, and having absolute values |Re| and |Rth| of an in-plane retardation Re and a thickness-direction retardation Rth each being 1 nm or less; and a polarizing plate having the same. Preferably, the optical film includes a polymer containing a block A having the unit (a) of the hydrogenated product of the aromatic vinyl compound; and a copolymer block B having the unit (a) of the hydrogenated product of the aromatic vinyl compound and the unit (b) of the hydrogenated product of the diene compound.

Abstract: A lubricating oil maintenance cap assembly includes a cap having an outer side, and an inner side, a shield, anchor assemblies, the shield is applied to the inner side of the cap, and the anchor assemblies anchor the shield to the cap. The cap is fashioned of a first material, the shield is fashioned of a second material, and the second material is different from the first material and is more thermally resistant than the first material enabling the shield to thermally shield the inner side of the cap.

Abstract: Provided is a polymer blend composition comprising high density polyethylene, a propylene polymer having rubber dispersed therein, and a propylene/ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising from 25 to 55 weight percent of the high density polyethylene, from 25 to 55 weight percent of a propylene polymer having from 10-60% crystallinity, and a propylene/ethylene copolymer comprising the remainder of the composition.

Abstract: Provided is a stretchable laminate which has a sufficient holding ability in the case of being stretched to be bonded onto another material and is excellent in feeling of touch. Also provided is an article including such stretchable laminate. The stretchable laminate of the present invention is a stretchable laminate, including: an elastomer layer; and a non-woven fabric layer arranged on at least one side of the elastomer layer, the stretchable laminate including an elastic lane portion and a rigid lane portion, the rigid lane portion requiring a strength of from 1 N/20 mm to 7 N/20 mm for obtaining a 5% deformation amount.

Abstract: Buffer tubes made from a composition comprising: (A) polypropylene, (B) high density polyethylene (HDPE), (C) propylene-ethylene copolymer (PE copolymer), (D) olefin block composite, and (E) optionally, one or more of a nucleating agent, filler and additive, exhibit reduced stress whitening as compared to buffer tubes made from conventional polypropylene compositions.

Abstract: An adhesive composition comprising: one or more block copolymers and one or more tackifying resins, wherein said one or more block copolymers comprise (i) one or more blocks of polymerized alkenyl arene monomer (A block), (ii) one or more blocks of polymerized conjugated diene monomer (B block), and optionally at least one low molecular weight (compared to B block) block of polymerized conjugated diene (C block), where the A, B, and C blocks can vary independent of each other with regard to composition and molecular weight.

Abstract: A solid composition, of use in particular on any type of metallic substrate as a hydrophobic, electrically conductive, metal-adhesive coating, comprises at least (% by weight of composition): as conductive filler, from 75% to 95% of electrically conductive microparticles, the weight-average size of which is between 1 ?m and 100 ?m; and as hydrophobic, metal-adhesive polymer matrix, from 5% to 25% of a polymer matrix denoted “P”, comprising at least 2 different polymers P1, a thermoplastic fluoropolymer, the weight-average molecular weight of which, denoted “Mw”, is between 100 000 and 1 000 000 g/mol; and P2, a thermoset resin, the glass transition temperature of which is between 30° C. and 150° C. A steel bipolar plate, especially made of stainless steel, for a fuel cell, may be coated with such a composition.

Abstract: The present invention relates to a complex composition of styrene-based block copolymer and PBT resin and, more particularly to, a complex composition of styrene-based block copolymer and PBT resin that uses a mixture of a styrene-based block copolymer, a paraffin oil and a polybutylene terephthalate (PBT) resin to compensate for the unfavorable factors of thermoplastic rubber (TPR), that is, the defects of properties, including weather resistance, thermal resistance, oil resistance, adhesiveness, and printability, etc., and to improve processability. In one preferred embodiment of the present invention, the complex composition comprises 10 to 200 parts by weight of a paraffin oil and 20 to 200 parts by weight of a polybutylene terephthalate (PBT) resin with respect to 100 parts by weight of a styrene-based block copolymer.

Abstract: Problem to be solved of the present invention is to provide a hot-melt adhesive agent which is capable of applying at low temperature, has an excellent adhesiveness at low temperature, and a disposable product obtained by employing the hot-melt adhesive agent. Means for solving the problem is a hot-melt adhesive agent comprised of a thermoplastic block copolymer (A) which is a copolymer of vinyl class aromatic hydrocarbons and conjugated diene compounds, wherein the thermoplastic block copolymer (A) comprises a radial type styrene block copolymer having a styrene content of 35 to 45% by weight and a diblock content of 50 to 90% by weight, and having a viscosity at 25° C. as a 25% (by weight) toluene solution of not more than 250 mPa·s (A1).

Abstract: This invention relates to a polyolefin composition with (a) 80 to 90 wt % of an amorphous ethylene-propylene copolymer having either no crystallinity or crystallinity derived from ethylene, having about 30 wt % or more units derived from ethylene; (b) 5 to 15 wt % of a semi-crystalline ethylene-propylene copolymer having substantial crystallinity derived from ethylene and having 70 wt % or more units derived from ethylene; and (c) 1 to 5 wt % of a propylene-based elastomer having within the range from 5 to 25 wt % ethylene derived units and having a melting point temperature of less than 110° C. and a Mw/Mn within the range from 2.0 to 4.0.

Abstract: The present invention includes the efficient dispersion and high loading of fillers in a thermoplastic polymer matrix. In a first general embodiment, the present invention includes a method wherein fillers are first synthesized and dispersed in a liquid monomer. The liquid monomer is then polymerized to a solid. The nanofillers may be silver nanoparticle/nanowire fillers. Ethylene glycol may serve as a solvent, reducing agent as well as precursor monomer for polymerization. In a second general embodiment, the present invention includes a method wherein fillers may be separately synthesized (or obtained commercially) and then added and dispersed in a liquid monomer. The liquid monomer is then polymerized to a solid. In a third general embodiment, a composite is synthesized using interfacial polycondensation. This is accomplished by aggressive mixing of two solvents during the reaction. The aggressive mixing forms microdroplets (i.e.

Abstract: An adhesive composition is provided that includes a block copolymer present at greater than or equal to 30 total weight percent of the adhesive system comprising a high glass transition temperature in subunits Y and Y?, each of the subunits Y and Y? having a high glass transition temperature of from 70° C. to 130° C. with a low glass transition temperature subunit Z having a low glass transition temperature of from ?100° C. to 10° C. intermediate between said high glass transition temperature acrylate subunits to define a structure Y-Z-Y?. The triblock copolymer is dissolved in a monomer curable under free radical. A free radical initiator of a peroxide or a hydroperoxide are present in combination with a sulfonyl chloride, dihydropyridine and copper or vanadium salt. By heating the cured adhesive at or above 70° C., the adhesive is amenable to being removed, repaired, or reworked.

Abstract: Embodiments of this invention relate to a composition composed of at least (A) a propylene-based polymer, and (B) a filler dispersed within the propylene-based polymer, which can be used as a wear layer on a resilient flooring or other substrate, among other uses.

Abstract: Disclosure provides a block copolymer composition having 20% by mass or more and 90% by mass or less of a component (A) and 10% by mass or more and 80% by mass or less of a component (B), wherein the component (A) is a block copolymer having a polymer block mainly comprising a vinyl aromatic monomer unit and a polymer block mainly comprising a conjugated diene monomer unit, and having a weight-average molecular weight of 30,000 or higher and 190,000 or lower; and the component (B) is a block copolymer having a polymer block mainly comprising a vinyl aromatic monomer unit and a polymer block mainly comprising a conjugated diene monomer unit, and having a weight-average molecular weight of 60,000 or higher and 500,000 or lower.

Abstract: A polymer composition is provided. The polymer composition includes a polyolefin, at least 30% by weight of a thermoplastic elastomer, and a filler material. When the polymer composition is formed into an article having a longitudinal axis, the polymer composition has an average coefficient of thermal expansion along a longitudinal axis of less than or equal to 150×10?6 m/mK as measured from ?40° C. to 25° C. Further, the polymer composition has an elastic modulus of less than 3000 MPa as measured using dynamic mechanical analysis (ASTM D4065), and the polymer composition has an elongation at break of greater than 200% along the longitudinal axis (measured according to ASTM D638). An article made from the polymer composition and a cable including the polymer composition are also provided.

Abstract: Provided is a thermoplastic elastomer composition excellent in mechanical characteristics, abrasion resistance, etc., comprising: a crosslinked composition (X) obtained by heat-treating, under molten condition, a composition containing 100 pars of a block copolymer or a hydrogenated product thereof, the block copolymer including a polymer block A mainly derived from an aromatic vinyl compound containing 1% by mass or more of an alkylstyrene and a polymer block B mainly derived from a diene compound, 10 to 300 parts of an olefin-based resin, 0.01 to 20 parts of a crosslinking agent, 1 to 50 parts of a crosslinking adjuvant, and 30 to 250 parts of a softener for rubber; and a hydrogenated block copolymer (Y) obtained by hydrogenating a block copolymer having at least two polymer blocks of an aromatic vinyl compound and at least one polymer block of a conjugated diene compound, with the mass ratio of (X)/(Y)=10/90 to 90/10.

Abstract: A polyolefin-based resin composition comprising: a polyolefin-based resin, and a hydrogenated block copolymer having a polymer block A mainly containing a vinyl aromatic monomer unit and a polymer block B mainly containing a conjugated diene monomer unit, wherein a mass ratio of the polyolefin-based resin/the hydrogenated block copolymer is 95 to 5 parts by mass/5 to 95 parts by mass, a total vinyl aromatic monomer unit content in the hydrogenated block copolymer is 12 to 25 mass %, a degree of hydrogenation of double bonds based on the conjugated diene monomer unit in the hydrogenated block copolymer is 90 mol % or more, and a melt flow rate value is 7 to 26 g/10 min.

Abstract: Orthopedic devices are described including polymer compositions used to make the devices. The polymer composition contains a polyoxymethylene polymer in combination with various additives that prevent against agglomerations and spotting even when the composition contains significant amounts of coloring agents and/or waxes. In addition, the polymer composition has reduced formaldehyde emissions and excellent thermal stability properties.