Abstract: Disclosed are highly filled thermoplastic olefin compositions and, in particular, thermoplastic olefin compositions that comprise propylene/alpha-olefin copolymers and a high level of organic or inorganic filler. Specifically, the description addresses a filled polymer composition comprising: (a) a first polymer component comprising propylene copolymer having a heat of fusion < about 75 J/g and a triad tacticity of from about 50% to about 99%, the first polymer component having a melt flow rate at 230° C. ? about 800 g/10 min.; and (b) at least about 15% by weight of a filler, based on the total weight of the filled composition. Such compositions are useful as sound barriers, flame retardant compositions, roofing membranes, and the like.

Abstract: In one embodiment is a thermoplastic vulcanizates having improved extrusion properties formed from a composition that includes from 20% to about 80% by weight of an elastomer, from about 80% to about 20% by weight of a thermoplastic, from about 0.05 to about 12 phr of a multifunctional methacrylate monomer peroxide curing coagent; and from about 0.02 to about 6 phr of a phosphorous containing stabilizer. The resultant thermoplastic vulcanizate may be cured with a peroxide curing agent and shows improved die lip build up compared to conventionally prepared thermoplastic vulcanizates. Methods of forming thermoplastic vulcanizates having improved die lip build up are also taught.

Abstract: Disclosed herein are various compositions, including a transparent compositions comprising propylene-based polymers and a hydrocarbon resin.

Abstract: The present invention is directed to an aqueous adhesive composition comprising a functionalized polyolefin, a cross-linking agent, and a cross-linkable resin as well as to a process for adhering a thermoplastic elastomer composition to a substrate comprising the steps of applying said aqueous adhesive composition to a polar substrate and applying the thermoplastic elastomer, for instance, by extrusion, in particular, by robotic extrusion.

Abstract: A TPV composition having improved fabricability and surface appearance is achieved by a process for preparing a thermoplastic vulcanizate composition having a dispersed, cross-linked rubber phase in a continuous thermoplastic polypropylene phase comprising: a) providing into melt processing equipment at least the following components; i) at least one thermoplastic polypropylene homopolymer or copolymer having a melt temperature greater than 120° C.; ii) 6-12 wt. %, based on the total weight of the thermoplastic vulcanizate composition, at least one propylene copolymer having from 7 to 30 wt. % ethylene, based upon the weight of the random propylene copolymer, and a melting point less than 120° C.; iii) at least one cross-linkable rubber, where, if including an ethylene copolymer rubber, said copolymer rubber having equal to or more than 40 wt.

Abstract: Disclosed herein are various compositions, including a transparent compositions with maximum haze of 50%, comprising (including): a first polymer component (FPC) that includes polypropylene having a melting point (Tm) ?110° C.; a second polymer component (SPC) that includes a propylene polymer having 60 wt % or more units derived from propylene, including isotactically arranged propylene derived sequences and Tm<105° C. or a Heat of Fusion<45 J/g, or both; and a hydrocarbon resin having a Tg?20° C.; wherein: the SPC is present in the amount of ?10 wt % and ?70 wt % based on the total weight of a), b) and c) and the composition has: Haze value of ?50 percent; and Shore A Hardness of 90 or below.

Abstract: A high strength thermoplastic vulcanizate (TPV) composition is provided. The TPV includes a dispersed rubber component, a polyolefinic thermoplastic resin component, a propylene copolymer and mineral filler present in the amount of 20 wt % to 70 wt % based on total of the thermoplastic vulcanizate composition. Preferably, the propylene copolymer has 60 wt % or more units derived from propylene; includes isotactically arranged propylene derived sequences; and has a heat of fusion less than 45 J/g. Preferably, the mineral filler is halogen free and flame retardant. The high strength TPV can be useful for making a variety of articles for electrical, construction, automotive, and consumer applications, including fuel cell.

Abstract: Product, method and use of a copolymer AB as a compatibilizing agent between a polar thermoplastic polymer C and a polyolefine D. The method of making AB comprise the steps of: a) melting a copolymer (A) comprising a larger amount of methylmethacrylate units and a smaller amount of functional vinyl or (meth)acrylate units wherein functional moiety is selected in the group consisting of (a hydroxyl, a carboxylic, a glycidyl or an amine functional group); together with maleic anhydride grafted polypropylene (B) allowing condensation reaction to occur between the functions under “A” and the anhydride under “B”; b) the condensation copolymer obtained under a) is further melt together with the two polymers C and D to be homogenized, or melt processed as an interlayer between the two molten polymers.

Abstract: Product, method and use of a copolymer AB as a compatibilizing agent between a polar thermoplastic polymer C and a polyolefine D. The method of making AB comprise the steps of: a) melting a copolymer (A) comprising a larger amount of methylmethacrylate units and a smaller amount of functional vinyl or (meth)acrylate units wherein functional moiety is selected in the group consisting of (a hydroxyl, a carboxylic, a glycidyl or an amine functional group); together with maleic anhydride grafted polypropylene (B) allowing condensation reaction to occur between the functions under “A” and the anhydride under “B”; b) the condensation copolymer obtained under a) is further melt together with the two polymers C and D to be homogenized, or melt processed as an interlayer between the two molten polymers.

Abstract: Adhesive compositions comprising a thermoplastic elastomer and a block copolymer with rigid vinyl aromatic blocks and non-rigid blocks of dienes and vinyl aromatic monomers.

Abstract: The invention relates to compatibilized blends comprising a non-polar thermoplastic elastomer, a polar thermoplastic polymer selected from thermoplastic polyurethane (TPU), chloro containing polymers, fluoro containing polymers, polyesters, acrylonitrile-butadiene-styrene copolymers, styrene-acrylonitrile copolymers, styrene-maleic anhydride copolymer, polyacetal, polycarbonate, polyphenylene oxide, and a suitable compatibilizer.

Abstract: The present invention relates to a thermoplastic elastomer vulcanizate obtained from a thermoplastic propylene/ethylene/&agr;-olefin terpolymer, a rubber component and optional additives, by dynamic vulcanization of the rubber component with a non-peroxide curing system. The vulcanizate has both superior physical properties and excellent processability.

Abstract: The invention relates to a composition of a blend of an ethylene/propylene random copolymer and a low to very low density ethylene/C4 to C20-&agr;-olefin random copolymer and its use as an impact modifier for polyolefin compositions. The invention further relates to polyolefin compositions, particularly polypropylene compositions, comprising said impact modifier composition.

Abstract: The invention relates to a method of high frequency welding of non-polar thermoplastic elastomers characterized in that said elastomers comprise a polar modifier. Furthermore, the invention relates to shaped articles obtainable by said method.

Abstract: The present invention relates to a curable composition comprising a thermoplastic polyolefin resin and a curable star-branched rubber, a thermoplastic elastomeric vulcanizate obtainable therefrom by dynamically vulcanizing said curable composition in the presence of a suitable curative and shaped articles comprising said vulcanizate.

Abstract: Low oil swell, non sticky readily processable carboxylated nitrile rubber-thermoplastic polyurethane vulcanizate compositions have increased upper service temperature over comparable thermoplastic polyurethanes. The compositions of the present invention are made utilizing a processing aid, for example, maleated polyolefins and addition type curing agents such as bisoxazolines or bisimidazolines. The compositions generally contain thermoplastic polyurethane as a continuous phase with the carboxylated nitrile rubber being dispersed therein.

Abstract: The present invention relates to new block copolymers of chemically modified polyolefins and thermoplastic polyurethanes, copolyesters or copolyamides a method for the preparation of said block copolymers and their use for compatibilizing blends of polar and non-polar thermoplastic elastomers. The block copolymers according to the present invention can further be used for promoting the adhesion of thermoplastic elastomers onto various polar engineering resins.

Abstract: The present invention relates to new block copolymers of chemically modified polyolefins and thermoplastic polyurethanes, copolyesters or copolyamides a method for the preparation of said block copolymers and their use for compatibilizing blends of polar and non-polar thermoplastic elastomers. The block copolymers according to the present invention can further be used for promoting the adhesion of thermoplastic elastomers onto various polar engineering resins.

Abstract: Thermoplastic elastomers having improved surface properties are provided by incorporating a copolymer of a functionalized polyolefin and a polyamide into a thermoplastic elastomer selected from(A)(a) a thermoplastic polyolefin homopolymer or copolymer, and(b) an olefinic rubber which is fully crosslinked, partially crosslinked or not crosslinked, and optionally(c) common additives;(B)(a) a block-copolymer of styrene/conjugated diene/styrene and/or its hydrogenated derivative, optionally compounded with(b) a thermoplastic polyolefin homopolymer or copolymer and/or(c) common additives and(C) any blend of (A) and (B).The invention further relates to a process of making these modified thermoplastic elastomers, their use and shaped articles comprising them.

Abstract: A method to adhere thermoplastic elastomer blends comprising(a) at least one thermoplastic polyolefin,(b) at least one non-cured, partially cured or fully cured elastomer or blends thereof,(c) a functionalized polyolefin and(d) optionally additives,to a polyester substrate, said method comprising the steps oftreating the substrate with a blocked di-isocyanate in aqueous dispersion, or subsequently or simultaneously treating the substrate with a blocked di-isocyanate and an epoxy resin in aqueous dispersion/emulsion,applying the thermoplastic elastomer blend to the treated substrate and bonding the thermoplastic elastomer blend to the surface of the substrate using heat and pressure.The invention further relates to shaped articles obtainable by said process.