C08L2207/064

Flame-retardant resin composition, and insulating wire, metal cable, optical fiber cable and molded article using the same
11028257 · 2021-06-08 · ·

A flame-retardant resin composition may include a base resin composed of polyethylene and an acid-modified polyolefin, a silicone compound, a fatty acid-containing compound, and a hindered amine-based compound that includes a hindered amine structure. The polyethylene may include a high-density polyethylene, a medium-density polyethylene and a low-density polyethylene, where the high-density polyethylene has a density of 945 kg/m.sup.3 or more, the medium-density polyethylene has a density of 914 kg/m.sup.3 or more and less than 945 kg/m.sup.3, and the low-density polyethylene has a density of 864 kg/m.sup.3 or more and less than 914 kg/m.sup.3. The base resin may contain the high-density polyethylene in an amount of 40 mass % or more and 60 mass % or less, the medium-density polyethylene in an amount of 1 mass % or more and 35 mass % or less, and the low-density polyethylene in an amount of 10 mass % or more and 30 mass % or less.

THERMOCHEMICAL BIOMASS COMPOUNDER
20210108034 · 2021-04-15 ·

A system, optionally a continuous-process system, for the production of a biomass-polymer composite. The system accepts a biomass input, particulates the biomass using one or more mills, subjects the particulated biomass to a heat treatment, such as torrefaction, and then compounds the torrefied biomass with a polymer to create the composite. Such a system, and in particular, a continuous-type system, allows for efficient processing of all of the inputs, and furthermore eliminates the dangers, time, and costs associated with having to safely cool down torrefied biomass prior to compounding at a later time or location.

Low-weight profiles and hoses having high flexural fatigue
20210054951 · 2021-02-25 · ·

The invention relates to a profile made from a polymer material comprising a linear low-density polyethylene and a very low-density polyethylene having a specific range of flexural modulus, and to a flexible hose made from said profile. It is part of the invention that the profile wall thickness of the flexible hose is reduced while a sufficient and efficacious value for the flex life is maintained and while a sufficiently high memory is maintained, when compared to the common wall thickness of current hoses, such that the hose of the invention has a reduced weight while the durability and fatigue resistance of the hose is maintained at a sufficiently high value.

Polymer composition with high flexibility and flame retardancy

The invention relates to polymer compositions used for preparing conjunction devices. The conjunction devices comprise one or more elements including a static/moving current medium or communication medium; and a halogen-free polymer composition surrounding the element(s). The polymer composition includes a linear very low density polyethylene (VLDPE) composition and one or more polyolefin-elastomers. In addition, the polymer composition includes a flame retardant filler.

Multi-layered films oriented in the machine direction and articles comprising the same

The present invention provides uniaxially oriented films and packages formed from such films. In one aspect, a uniaxially oriented film includes (a) a first layer including (i) a first composition including an ethylene-based polymer prepared in the presence of a single-site catalyst, wherein the first composition has a density of 0.935 g/cm.sup.3 to 0.965 g/cm.sup.3, a melt index (12) of 0.5 to 6 g/10 minutes, and a MWD of 6.0 or less, and (ii) a Ziegler-Natta catalyzed ultra low density polyethylene having a density of 0.880 g/cm.sup.3 to 0.912 g/cm.sup.3, a melt index (12) of 0.5 to 6 g/10 minutes, and a MWD of 6.0 or less, (b) a second layer including at least one polyolefin, and (c) at least one inner layer between the first layer and the second layer including a high density polyethylene. The film is oriented in the machine direction at a draw ratio of between 4:1 and 10:1, and can exhibit a machine direction 2% secant modulus of 85,000 psi or more when measured as per ASTM D882.

Olefin-Based Polymer

The present invention relates to an olefin-based polymer, which has (1) a density (d) ranging from 0.850 to 0.865 g/cc, (2) a melt index (MI, 190 C., 2.16 kg load conditions) ranging from 0.1 g/10 min to 3.0 g/10 min, and (3) a soluble fraction (SF) of 10 wt % or more at 20 C. in cross-fractionation chromatography (CFC), in which a weight average molecular weight (Mw) of the soluble fraction is in a range of 50,000 g/mol to 500,000 g/mol. The olefin-based polymer according to the present invention exhibits improved anti-blocking properties as a low-density olefin-based polymer.

Modified polyethylenes

A composition includes polyethylene; a multifunctional co-agent having a functionality of 3 or greater, where the multifunctional co-agent is from 100 to 2000 ppm based upon the polyethylene; and a free radical generator, where the free radical generator is from 5 to 100 ppm based upon the polyethylene. Such composition may be utilized to form modified polyethylenes.

CONJUNCTION DEVICE SUCH AS A CABLE AND POLYMER COMPOSITION FOR PREPARING SAME

The invention relates to conjunction devices and polymer compositions used for preparing the conjunction devices. The conjunction devices comprise one or more elements including a static/moving current medium or communication medium; and a halogen-free polymer composition surrounding the element(s). The polymer composition includes a linear very low density polyethylene (VLDPE) composition and one or more polyolefin-elastomers. In addition, the polymer composition includes a flame retardant filler.

Compatibilised polyolefin and polyphenylene oxide and/or polystyrene composition

The present invention relates to a composition comprising polyolefin, polyphenylene oxide (PPO) and a compatibiliser, articles made therefrom and the use of a graft or block copolymer as a compatibiliser.

Polyethylene compositions, and articles made therefrom

The invention provides a composition suitable for use in pipe applications, the composition comprising: an ultra-high molecular weight ethylene-based polymer having an intrinsic viscosity from 5 to 50 deciliters/gram; a polyethylene resin comprising a first molecular weight ethylene-based polymer component and a second molecular weight ethylene-based polymer component, wherein the polyethylene resin has a density from 0.930 to 0.960 g/cc; a thermoplastic polyolefin elastomer having a density of from 0.850 to 0.910 g/cc; and, optionally, a fluoropolymer.