C08L2205/12

Roofing compositions comprising linear low density polyethylene

Provided is a polymer blend composition comprising linear low density polyethylene, a propylene polymer generally having rubber dispersed therein, and a combination of a propylene copolymer and an ethylene copolymer. In one embodiment, there is provided a polymer blend composition comprising 20 to 65 weight percent of a propylene polymer having from 10-60% crystallinity, 30-60 weight percent of a linear low density polyethylene, and a combination of the propylene copolymer and the ethylene copolymer comprising the remainder of the composition.

HIGH FLOW, LOW GLOSS THERMOPLASTIC COMPOSITIONS, METHOD FOR THE MANUFACTURE THEREOF, AND ARTICLES COMPRISING THE COMPOSITION
20200140686 · 2020-05-07 ·

A thermoplastic composition includes a polyetherimide having a glass transition temperature of greater than 180 C., a block poly(ester-carbonate), and a flow promoter. The respective amounts of each component are further described herein. A method of preparing the thermoplastic composition includes melt-mixing the components, and extruding the components. Articles comprising the thermoplastic composition are also described.

PROCESS FOR PREPARING A BIAXIALLY ORIENTED MULTILAYERED FILM
20200131321 · 2020-04-30 ·

The invention relates to a process for preparing a biaxially oriented multilayered film, the film comprising at least one layer comprising a polyolefin composition and at least one layer comprising a polyamide composition, the process comprising the steps of: a) Melting a polyamide composition comprising: i. a semi-crystalline polyamide Y comprising: monomeric units derived from caprolactam in an amount of at least 75 wt %; monomeric units derived from an aliphatic diamine in an amount of between 2.5 and 12.5 wt %; monomeric units derived from an aromatic diacid in an amount of between 2.5 and 12.5 wt %; wherein the weight percentage is given with respect to the total weight of the polyamide Y; ii. an amorphous polyamide in an amount of between 2.5 and 50 wt % with respect to the total weight of the polyamide composition; wherein the amorphous polyamide comprises: monomeric units derived from an aliphatic diamine X in an amount of between 30 and 70 wt %; monomeric units derived from an aromatic diacid in an amount of between 30 and 70 wt %; wherein the weight percentage is given with respect to the total weight of the amorphous polyamide; b) Melting a composition comprising a polyolefin; c) Co-extruding at least the melts obtained from a) and b) to form a film of at least two layers; d) Cooling the film to a temperature of at most 50 C., while the film is transported in a direction, referred to as machine direction; e) Stretching the film obtained in step d) with a stretch ratio of at least 13, at a temperature between the Tg of polyamide Y and Tm of the polyolefin, wherein the stretch ratio is defined as being the product of the stretch ratio parallel to the machine direction and the stretch ratio perpendicular to the machine direction. The invention also relates to a biaxially oriented multilayered film obtainable by the process.

LIQUID CRYSTAL POLYESTER RESIN COMPOSITION AND MOLDED ARTICLE
20200115546 · 2020-04-16 ·

This liquid crystal polyester resin composition includes a liquid crystal polyester resin and a filler composed of a fibrous filler and a plate-like filler, in which the amount of the filler is at least 15 parts by mass but not more than 55 parts by mass per 100 parts by mass of the liquid crystal polyester resin, and the number average fiber length of the fibrous filler is at least 450 m but not more than 700 m.

POLYMER GEL FILM CONTAINING LIQUID CRYSTAL DROPLETS FOR DETECTING MERCURIC IONS IN WATER AND PREPARATION METHOD THEREOF
20200079915 · 2020-03-12 ·

The invention relates to a method for preparing a polymer gel film containing liquid crystal droplets, comprising the steps of: preparing liquid crystal droplets containing a ligand, by adding a nematic liquid crystal containing a ligand to an aqueous surfactant solution, and mixing, to obtain the liquid crystal droplets containing a ligand; adding the liquid crystal droplets containing a ligand to an aqueous polymer solution, and mixing, to obtain an aqueous polymer solution containing the liquid crystal droplets; and spreading the aqueous polymer solution containing the liquid crystal droplets flatly in a polymer container, and allowing the aqueous polymer solution containing the liquid crystal droplets to gelatinize, to obtain a polymer gel film containing liquid crystal droplets. The invention utilizes liquid crystal droplets dispersed in the agarose to detect mercuric ions in the water, and through the configuration change of the liquid crystal droplets, the mercuric ions is specifically detected.

POLYAMIDE POLYMER COMPOSITIONS
20200062955 · 2020-02-27 ·

Described herein are polymer compositions including (i) a polymer blend containing an amorphous polyester copolymer and a semi-crystalline polyamide polymer (polyester/polyamide blend), (ii) 1 weight percent (wt. %) to 5 wt. % of an epoxy functionalized impact modifier and optionally (iii) one or more additives. It was surprisingly found that incorporation of a specific amount of an epoxy functionalized impact modifier into polymer compositions including a polyester/polyamide blend provided for significantly improved impact performance, relative to corresponding polymer compositions incorporating non-epoxy functionalized impact modifiers or corresponding polymer compositions free of impact modifiers. Due at least in part to the significantly improved impact performance and outstanding chemical resistance, the polymer compositions described herein can be incorporated in a wide variety of application settings, including but not limited to mobile electronic application settings.

Polycarbonate and liquid crystal polymer blends

The disclosure concerns a polymer blend derived from transesterification of (i) 69.9 to 95 weight percent polycarbonate; and (ii) 4.9 to 30 weight percent liquid crystal polymer; in the presence of 0.01 to 0.1 weight percent catalyst; wherein the polymer is transparent.

LIQUID CRYSTAL POLYMER RESIN COMPOSITION FOR OUTER PLATE AND OUTER PLATE
20200002485 · 2020-01-02 ·

A liquid crystal polymer resin composition for an outer plate includes a liquid crystal polymer and a plate-shaped filler, in which the amount of the plate-shaped filler is 20 parts by mass or more and 70 parts by mass or less with respect to 100 parts by mass of the liquid crystal polymer.

Mixture of Boron Nitride Particles and Cellulose Nanocrystals and Resin Composition Containing the Mixture
20190382579 · 2019-12-19 ·

A method of making a resin composition is described comprising providing a mixture of boron nitride particles and cellulose nanocrystals and combining the mixture with a resin composition. The weight ratio of boron nitride to cellulose nanocrystals typically ranges from 99.9:0.1 to 90:10. The resin composition can have a viscosity at least a 5, 10, 15, 20 or 25% lower than the same composition without the cellulose nanocrystals, which facilitate processing efficiency and is also amenable to incorporating higher boron nitride concentrations into the resin composition. Also described is a (e.g. powder) composition comprising premixed boron nitride particles and cellulose nanocrystals and resin composition comprising such (e.g. powder) composition.

RESIN COMPOSITION AND MOLDED BODY
20240067818 · 2024-02-29 ·

A resin composition including a liquid crystalline polymer and a fluororesin, wherein the fluororesin has a peak area percentage of a CF.sub.3 groups content relative to a CF.sub.2 groups content in the fluororesin of 0.05% or more, as determined by the following [Method for measuring CF.sub.3 groups content]: the CF.sub.3 groups content relative to the CF.sub.2 groups content in the fluororesin is calculated as an area percentage from a peak area ICF.sub.3 corresponding to the CF.sub.3 groups and a peak area ICF.sub.2 corresponding to the CF.sub.2 groups measured by .sup.19F solid-state NMR, and is determined by the following formula (f1): CF.sub.3 groups content (%)={(ICF.sub.3/3)/(ICF.sub.2/2)}?100 (f1).