Abstract: Novel thermoplastic elastomer compositions, made by dispersing a polyolefin elastomer phase containing functionalized EPM or EPDM in a polyamide resin followed by cross-linking of the elastomer phase, are described. The cross-linked phase exists as discreet particles, providing an overall blend which remains thermoplastic. The resulting blend may be used in the fabrication of elastomeric goods without the need for a separate vulcanization step after the desired object is formed.

Abstract: Thermoplastic polyester, copolyester and polyblend molding compositions impact-modified by glycidyl methacrylate grafted EPDM exhibit high impact strength combined with good knit-line characteristics, when the grafted comonomer content exceeds 2 percent by weight in the impact modifier, it has a gel content in the range of from about 10 to about 80 weight percent.

Abstract: A process for coating wet rubber pellets including coating the pellets with an inorganic partitioning agent, a thickener and binder, and an anionic water soluble dispersant, air conveying the pellets to a dryer, and compressing the pellets to form a bale. By virtue of the coating, the bales are rendered more friable.

Abstract: This invention is addressed to antioxidants which are polymerizable using the Ziegler catalyst system. The antioxidant of the present invention has the formula: ##STR1## wherein R.sub.1 and R.sub.2 are each aryl groups containing a hindered antioxidant structure imparting antioxidant properties to the compounds. The compounds of the present invention are useful in the polymerization of olefin compounds using Ziegler catalyst systems whereby the antioxidant of the invention becomes chemically bound to the polymer while, at the same time, imparting antioxidant properties thereto.

Abstract: A modifier composition which provides retention of surface smoothness and internal appearance while imparting improved low-temperature impact properties to molded thermoplastics and the thermoplastic molding compositions containing said modifier, the modifier comprising a crystalline thermoplastic resin and a modifier formed by combining a grafted EPM or EPDM rubber and a reactive polystyrene.

Abstract: Novel thermoplastic elastomer compositions, made by dispersing a polyolefin elastomer phase containing functionalized EPM or EPDM in a polyamide resin followed by cross-linking of the elastomer phase, are described. The cross-linked phase exists as discreet particles, providing an overall blend which remains thermoplastic. The resulting blend may be used in the fabrication of elastomeric goods without the need for a separate vulcanization step after the desired object is formed.

Abstract: A polyolefin-EPDM or EPM thermoplastic blend in which the bonded relation of applied organic coatings is improved by the inclusion of an oxidized or carboxylated polyolefin.

Abstract: A polyester composition and method having improved unnotched Izod impact strength in which the polyester matrix is blended with an EPDM interpolymer grafted with an ester of acrylic or methacrylic acid and cross-linked with a diamine or diacid or its anhydride before or preferably after blending.

Abstract: A polyester composition and method having improved unnotched Izod impact strength in which the polyester matrix is blended with an EPDM interpolymer grafted with an ester of acrylic or methacrylic acid and cross-linked with a diamine or diacid or its anhydride before or preferably after blending.

Abstract: The improvement of toughness and impact strength of polyester resins is achieved by blending 60-90 parts by weight of the polyester with 10-40 parts by weight of an ethylene, propylene, diene rubber, having 2-20 unsaturated C.dbd.C linkages per 1000 carbon atoms and which has been grafted with glycidyl methacrylate to a level of 1-10 percent by weight.

Abstract: Impact strength and toughness of polyamide resins are improved by blending resin with up to 50 percent by weight maleic anhydride grafted EPM rubber of low molecular weight and exposing the mixture to elevated temperature during blending.

Abstract: A method of improving the handling of low molecular weight EPM or EPDM polymers which includes reacting the low molecular weight polymer with a monomer capable of providing quaternary salt forming groups and then cross linking the resulting polymer with a difunctional cross linking agent whereby the polymer takes on the characteristics of a high molecular weight polymer but which can be returned to the characteristics of a low molecular weight polymer upon exposure to elevated temperature.

Abstract: The preparation of synthetic rubbers characterized by high green strength and tack in which a polymerizable unsaturated tertiary amine and a polymerizable cross linking agent in the form of an organic compound containing active halogen groups are copolymerized with the rubber forming monomers.

Abstract: A process for grafting functional organic groups onto EPM and EPDM polymers wherein the grafting reaction is carried out in the cement in which the polymer is originally formed by solution polymerization.

Abstract: The improvement of physical and mechanical properties of polar resins such as nylon and dacron resins by blending with EPM and EPDM resins which have been rendered more compatible by the modification to incorporate polar groups.

Abstract: The preparation of elastomeric materials in the form of free flowing particles in which the latex formed by the polymerization of the monomers in aqueous medium is coagulated to produce particles of a size within the range of 0.5 to 5 millimeters and in which the particles are ultimatedly dried and then cooled while in a fluidized state and which includes the addition of partitioning agents to obstruct agglomeration.

Abstract: Elastomeric particles which are rendered free flowing by treatment with the combination of a finely divided partitioning agent and a fibrilatable polymer which has been fibrilated to form a network on the surface of the elastomeric material with retention of the partitioning agent thereby.

Abstract: EP polymer of low molecular weight containing 0.02% to 0.6% by weight vinyl norbornene or norbornadiene whereby the cold flow of the EP polymer is improved with resultant improvement in recoverability and handling without noticeable modification in molecular weight distribution or shear stability and without interfering with the use thereof as an oil additive, and without so much as to decrease oil solubility rate.

Abstract: Room temperature curable composition containing EPM or EPDM interpolymers having bound ethylene organosilane monomers in which residual hydrolyzable groups of the bound organosilicon components are in the form of lower alkoxy groups, an organotin carboxylate for controlling cure, and which may include an organic amine, an aminosilane, organic hydroxyl compounds and fillers, and in which the EPM or EPDM is of lower molecular weight fluid consistency.

Abstract: A thermoplastic elastomer which is ideally suited for use in the fabrication of premium grade hose and other uses because of its smooth, soft and rubbery feel under widely varying temperature conditions, coupled with its exceptionally low compression set and good flexibility.