Patent classifications
C08L2666/06
HIGH-DENSITY POLYETHYLENE COMPOSITIONS, METHOD OF MAKING THE SAME, INJECTION MOLDED ARTICLES MADE THEREFROM, AND METHOD OF MAKING SUCH ARTICLES
The instant invention is a high-density polyethylene composition, method of producing the same, injection molded articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm.sup.3, and a melt index (I.sub.21.6) in the range of 1 to 15 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm.sup.3, and a melt index (I.sub.2) in the range of 30 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I.sub.2) of at least 1, a density in the range of 0.950 to 0.960 g/cm.sup.3. The method of producing a high-density polyethylene composition includes the following steps: (1) introducing ethylene, and one or more alpha-olefin comonomers into a first reactor; (2) (co)polymerizing the ethylene in the presence of one or more alpha-olefin comonomers in the first reactor thereby producing a first component, wherein the first component being a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm.sup.3, and a melt index (I.sub.21.6) in the range of 1 to 15 g/10 minutes; (3) introducing the first component and additional ethylene into a second reactor; (4) polymerizing the additional ethylene in the second reactor thereby producing a second component, wherein the second component being a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm.sup.3, and a melt index (I.sub.2) in the range of 30 to 1500 g/10 minutes; and (5) thereby producing the high-density polyethylene composition, wherein the high-density polyethylene composition having a melt index (I.sub.2) of at least 1, a density in the range of 0.950 to 0.960 g/cm.sup.3. The injection molded articles according to instant invention comprise the above-described inventive high-density polyethylene composition, and such articles are made via injection molding.
Wood-plastic composites utilizing ionomer capstocks and methods of manufacture
An extruded composite adapted for use as a building material includes a core having a base polymer and a natural fiber in a substantially homogeneous mixture and an ionomer capstock. To improve adherence of the ionomer to a base polymer, the ionomer can be mixed with a similar or substantially similar base polymer prior to coextrusion with the core. Additionally, various additives may be mixed with the capstock material to improve visual aesthetics of the product and performance of the building material, especially over time.
Wood-plastic composites utilizing ionomer capstocks and methods of manufacture
An extruded composite adapted for use as a building material includes a core having a base polymer and a natural fiber in a substantially homogeneous mixture and an ionomer capstock. To improve adherence of the ionomer to a base polymer, the ionomer can be mixed with a similar or substantially similar base polymer prior to coextrusion with the core. Additionally, various additives may be mixed with the capstock material to improve visual aesthetics of the product and performance of the building material, especially over time.
Overmold material for polycarbonate
The present disclosure provides an article. In an embodiment, the article includes a first structural component and a second structural component. The first structural component includes a polycarbonate composition. The second structural component includes a polymeric blend of (i) an ethylene/-olefin multi-block copolymer, and (ii) a functional polymer modifier that is an ethylene/ester copolymer. The second structural component is adhered to the first structural component.
Overmold material for polycarbonate
The present disclosure provides an article. In an embodiment, the article includes a first structural component and a second structural component. The first structural component includes a polycarbonate composition. The second structural component includes a polymeric blend of (i) an ethylene/-olefin multi-block copolymer, and (ii) a functional polymer modifier that is an ethylene/ester copolymer. The second structural component is adhered to the first structural component.
High-density polyethylene compositions, method of making the same, injection molded articles made therefrom, and method of making such articles
The instant invention is a high-density polyethylene composition, method of producing the same, injection molded articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm.sup.3, and a melt index (I.sub.21.6) in the range of 1 to 15 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm.sup.3, and a melt index (I.sub.2) in the range of 30 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I.sub.2) of at least 1, a density in the range of 0.950 to 0.960 g/cm.sup.3.
High-density polyethylene compositions, method of making the same, injection molded articles made therefrom, and method of making such articles
The instant invention is a high-density polyethylene composition, method of producing the same, injection molded articles made therefrom, and method of making such articles. The high-density polyethylene composition of the instant invention includes a first component, and a second component. The first component is a high molecular weight ethylene alpha-olefin copolymer having a density in the range of 0.920 to 0.946 g/cm.sup.3, and a melt index (I.sub.21.6) in the range of 1 to 15 g/10 minutes. The second component is a low molecular weight ethylene polymer having a density in the range of 0.965 to 0.980 g/cm.sup.3, and a melt index (I.sub.2) in the range of 30 to 1500 g/10 minutes. The high-density polyethylene composition has a melt index (I.sub.2) of at least 1, a density in the range of 0.950 to 0.960 g/cm.sup.3.
Polypropylene yarn having increased Young's modulus and method of making same
The present invention is directed to a monofilament, a yarn, a tape, or a staple fiber, each having 1 to 12,000 Denier per filament, a draw ratio of 2.5:1 to 25:1, and made of a polypropylene composition of a melt blended admixture of about 93% by weight of polypropylene, about 5% by weight of a polypropylene/ethylene copolymer, and about 2 wt. % of an additive. Also, a process for preparing the monofilament, yarn, tape, or staple fiber is disclosed.
Polypropylene yarn having increased Young's modulus and method of making same
The present invention is directed to a monofilament, a yarn, a tape, or a staple fiber, each having 1 to 12,000 Denier per filament, a draw ratio of 2.5:1 to 25:1, and made of a polypropylene composition of a melt blended admixture of about 93% by weight of polypropylene, about 5% by weight of a polypropylene/ethylene copolymer, and about 2 wt. % of an additive. Also, a process for preparing the monofilament, yarn, tape, or staple fiber is disclosed.
MINERAL-FILLED THERMOPLASTIC COMPOSITION HAVING GOOD MECHANICAL PROPERTIES
The invention relates to a composition for producing a thermoplastic moulding material, wherein the composition contains the following constituents: A) at least one polymer selected from the group consisting of aromatic polycarbonate, aromatic polyestercarbonate and polyester, B) at least one anhydride-functionalized ethylene--olefin copolymer or ethylene--olefin terpolymer having a weight-average molecular weight Mw of 50000 to 500000 g/mol determined by high-temperature gel permeation chromatography using ortho-dichlorobenzene as solvent against polystyrene standards, C) a talc-based mineral filler, and also to a process for producing the moulding material, to the moulding material itself, to the use of the composition or of the moulding material for producing moulded articles and to the moulded articles themselves.