Showing papers on "Plastomer published in 1992"

Heat sealable blend of very low density polyethylene or plastomer with polypropylene based polymers and heat sealable film and articles made thereof

Abstract: Heat sealable compositions suitable for film and film structures comprise: (a) from 30 to 70 weight percent of a low melting polymer comprising an ethylene based copolymer having a density of from 0.88 g/cm3 to 0.915 g/cm3, a melt index of from 1.5 dg/min to 7.5 dg/min, a molecular weight distribution no greater than 3.5, and a composition distribution breath index greater than 70 percent; and, (b), being different from (a), from 70 to 30 weight percent of a propylene based polymer having from 88 mole percent to 100 mole percent propylene and from 12 mole percent to 0 mole percent of an alpha-olefin other than propylene.

Plastomer compatibilized polyethylene/polypropylene blends

Abstract: Compatibilized blends of polypropylene, linear low density polyethylene and a low molecular weight plastomer are disclosed. The blend preferably contains at least about 50 percent by weight of crystalline polypropylene, from about 10 to about 50 percent by weight of LLDPE dispersed in a matrix of the polypropylene, and a compatibilizing amount of an ethylene/alpha-olefin plastomer having a weight average molecular weight between about 5,000 to about 50,000, a density of less than about 0.90 g/cm3, and a melt index of at least about 50 dg/min. The blend is useful in the formation of melt spun and melt blown fibers. Also disclosed are spun bonded-melt blown-spun bonded fabrics made from the blends.

Modified fluorohydrocarbon polymers

Abstract: This invention relates to fluorohydrocarbon polymers which are modified by the incorporation of substitiuents bearing a functional group such as vinyl, allyl, acrylate, alkoxysilane, amido, sulfonic acid salt, pyridine, carboxylic ester, and carboxylic salt. The functional groups may be further reacted to obtain branching, grafting, or crosslinking of the polymers. Copolymers of vinylidene fluoride and hexafluoropropene such as VITON A rubber and KYNAR FLEX 2801 plastomer, are typical of the class of fluorohydrocarbon polymers which are modified to obtain the new materials of this invention.

Compatible polypropylene/poly(1-butene) blends and fibers made therefrom

Abstract: Compatible blends of polypropylene and poly(1-butene) are disclosed. The blend preferably contains from about 55 to about 90 percent by weight of crystalline polypropylene, from about 10 to about 45 percent by weight of poly(1-butene) dispersed in a matrix of the polypropylene, and an optional compatibilization enhancing amount of an ethylene/α-olefin plastomer having a weight average molecular weight between about 5,000 to about 50,000, a density from about 0.865 to about 0.90 g/cm3, and a melt index of at least about 50 dg/min. The blend is useful in the formation of melt spun and melt blown fibers. Also disclosed are spun bonded-melt blown-spun bonded fabrics made from the blends.

Thermoplastic resin composition containing graft-modified polyolefin elastomer and a polyamide

Abstract: In the case where a polyamide is blended with a specific partially crosslinked graft-modified polyolefin elastomer obtained by dynamically heat-treating a blend of a peroxide-crosslinking olefin copolymer rubber and an olefinic plastic with an unsaturated carboxylic acid or derivative thereof, an unsaturated epoxy monomer or an unsaturated hydroxy monomer in the presence of an organic peroxide, if the graft-modified polyolefin plastomer occupies a major portion, a composition excellent in the oil resistance, the mechanical strength and the resistance against heat aging is obtained and if the polyamide occupies a major portion, a composition excellent in the impact resistance, the rigidity and the tensile strength is obtained.

Improvements to sections made of plastomer of U cross-section, which are intended especially for fitting to projecting edges of automobile bodywork or the like

Abstract: Improvements to sections made of plastomer of U cross-section, which are intended especially for fitting to projecting edges of automobile bodywork or the like.

Mold coil and manufacture thereof

Abstract: PURPOSE:To manufacture the title mold coil for high frequency high voltage transformer excellent in withstand voltage by a method wherein a plastomer sheet type insulator is wound up around the periphery of a thermosetting resin bobbin to be externally wound up with a winding while a raw coil provided with the winding wound up with the similar sheet type insulator around respective layers and then the periphery of the raw coil is molded in specific reactive oligomer. CONSTITUTION:Plastomer sheet type insulator 3 is wound up around a thermosetting resin made-bobbin 1 or thermosetting resin laminated sheet bobbin set by reactive oligomer kneaded with an organic filler while a raw coil provided with one each or multiple each of windings 2 comprising the plastomer sheet type insulator 3 externally wound up around respective winding layers are formed and then the periphery of the raw coil is molded in the reactive oligomer in exceeding 50wt% of the inorganic matter content in density of 0.8g/cm -2.2g/cm . For example, the bobbin 1 comprising the thermosetting resin such as the reactive oligomer, etc., homogeneous to the molding resin 5 to be molded in rectangular cylindrical shape having slightly rounded corners. Furthermore, as for the sheet type insulator 3, polyethyleneterephthalate, etc., with mica powder stuck thereto is applicable.