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US 2026/0109843 A1Published application
Polymer composition, extruded article, and method for preparing said article
AssigneeQuinlyte Holding B.V.
InventorHao CHEN
Life of this patent
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Abstract
A polymer composition including one or more polyamides, and optionally one or more vinyl alcohols, one or more maleic anhydride-grafted polyolefins, and one or more polyolefin compositions, wherein the total maleic anhydride concentration is less than 0.15 wt. %. Also, an extruded article including the polymer composition and to methods of manufacturing of an extruded article.
Claims17
A polymer composition comprising:
- (A) between 30 and 60 wt. % of (i) and (ii) combined:
- (i) one or more polyamides, selected from polyamide 6, polyamide 6/66, or a combination thereof, wherein each of the one or more polyamides has a relative solvent viscosity (RSV) measured in 90% formic acid of 2.5 or higher, in an amount of between 20 and 100 wt. % based on the weight of (A);
- and
- (ii) one or more vinyl alcohols, selected from poly vinyl alcohol (PVOH), ethylene vinyl alcohol (EvOH), or a combination thereof, in an amount of between 0 and 80 wt. % based on the weight of (A);
- (B) between 1.5 and 15 wt. % of one or more maleic anhydride-grafted polyolefins, each of the one or more maleic anhydride-grafted polyolefins having:
- i) a MFR of above 10 g/10 min measured at 190° C. under a load of 2.16 kg measured according to ISO 1133:1-2011, and ii) a maleic anhydride concentration of between 0.1 and 1.8 wt. % based on the weight of maleic anhydride-grafted polyolefins;
- (C) between 25 and 68.5 wt. % of one or more polyolefin compositions, selected from a polypropylene composition, a polyethylene composition or a combination thereof, wherein:
- i) said polypropylene composition has an MFR of less than 25 g/10 min measured at 230° C. under a load of 2.16 kg measured according to ISO 1133:1-2011, and/or ii) said polyethylene composition has a MFR of less than 5 g/10 min measured at 190° C. under a load of 2.16 kg measured according to ISO 1133:1-2011;
- wherein the wt. % of the polymers under (A), (B), and (C) is based on the combined weight of (A), (B), and (C);
- on the proviso that when the composition comprises as (C) 100 wt. % of one or more polypropylene compositions, based on the weight of (C), the polypropylene composition comprises at least 25 wt. % of one or more heterophasic propylene copolymers, based on the weight of the polypropylene composition;
- and
- wherein the total maleic anhydride concentration is less than 0.15 wt. %, based on the combined weight of (A), (B), and (C).
9 more elements
A polymer composition comprising:
- (A) (i) one or more polyamides, selected from polyamide 6, polyamide 6/66, or a combination thereof, in an amount of between 20 and 100 wt. % based on the weight of (A), wherein each polyamide has a relative solvent viscosity (RSV) measured in 90% formic acid of 2.5 or higher;
- and (ii) one or more vinyl alcohols, selected from poly vinyl alcohol (PVOH), ethylene vinyl alcohol (EvOH), or a combination thereof in an amount of between 0 wt. % and 80 wt. % based on the weight of (A);
- (B) one or more maleic anhydride-grafted polyolefins, each of the one or more maleic anhydride-grafted polyolefins having:
- i) a MFR of above 10 g/10 min measured at 190° C. under a load of 2.16 kg measured according to ISO 1133:1-2011, and ii) a maleic anhydride concentration of between 0.1 and 1.8 wt. % based on the weight of maleic anhydride-grafted polyolefins;
- (C) one or more polyolefin compositions, selected from a polypropylene composition, a polyethylene composition or a combination thereof, wherein:
- i) said polypropylene composition has an MFR of less than 25 g/10 min measured at 230° C. under a load of 2.16 kg measured according to ISO 1133:1-2011, and/or ii) said polyethylene composition has an MFR of less than 5 g/10 min measured at 190° C. under a load of 2.16 kg measured according to ISO 1133:1-2011;
- on the proviso that when the composition comprises as (C) 100 wt. % of one or more polypropylene compositions, based on the weight of (C), the polypropylene composition comprises at least 25 wt. % of one or more heterophasic propylene copolymers, based on the weight of the polypropylene composition;
- wherein the total maleic anhydride concentration is less than 0.18 wt. %, based on the combined weight of (A), (B), and (C),
- wherein the polymer composition has an oxygen permeability of less than 6 mL·mm/(mm2·day), preferably less than 5 mL·mm/(mm2·day), measured according ASTM F1927-20 at 23° C. and 50% relative humidity;
- wherein the polymer composition has a density of between 0.96 gram/cm3 and 1.05 gram/cm3, preferably between 0.97 gram/cm3 and 1.00 gram/cm3 measured according to ISO 1183-1:2019, method A—immersion method;
- and
- wherein the polymer composition has a water vapour permeability of less than 0.40 gram·mm/(mm2·day), preferably less than 0.30 gram·mm/(mm2·day), measured according to ASTM F1249-20 at 23° C. and 85% relative humidity.
9 more elements
Dependencies are inferred from the claim text.