MUMBAI, India, June 6 -- Intellectual Property India has published a patent application (202517046877 A) filed by Borealis Ag, Vienna, on May 15, for 'multilayer film.'
Inventor(s) include Berthelier, Anthony; Boragno, Luca; and Schuster, Gerhard.
The application for the patent was published on June 6, under issue no. 23/2025.
According to the abstract released by the Intellectual Property India: "The present invention relates to a multilayer film, comprising: A) a first outer layer (O1) and a second outer layer (O2), wherein the first (O1) and/or second (O2) outer layers comprise(s) A1) a bimodal ethylene terpolymer, with a density of from 910 to 930 kg/m3 determined according to ISO 1183 and an MFR2 measured according to ISO 1133 (190 C, 2.16 kg) from 0.5 to 10 g/10 min, comprising at least a C4-C12 alpha-olefin comonomer, and A2) a first multimodal ethylene copolymer (CP1), with a density of from 930 to 950 kg/m3 determined according to ISO 1183 and an MFR5 measured according to ISO 1133 (190 C, 5.00 kg) from 0.5 to 10 g/10 min, comprising at least a first C4-C12 alpha-olefin comonomer, B) a core layer (C), sandwiched between the first (O1) and the second (O2) outer layers, wherein the core layer (C) comprises B1) a recycled LDPE with a density of from 910 to 940 kg/m3 determined according to ISO 1183 and an MFR2 measured according to ISO 1133 (190 C, 2.16 kg) from 0.1 to 10 g/10 min, and B2) a second multimodal ethylene copolymer (CP2), with a density of from 930 to 950 kg/m3 determined according to ISO 1183 and an MFR5 measured according to ISO 1133 (190 C, 5.00 kg) from 0.5 to 10 g/10 min, comprising at least a first C4-C12 alpha-olefin comonomer wherein the first multimodal ethylene copolymer (CP1) and/or the second multimodal ethylene copolymer (CP2) is/are trimodal comprising: - a first ethylene homopolymer in an amount from 10 to 30 wt.-%, more preferably from 15 to 25 wt.-%; - a second ethylene homopolymer having an MFR2 which is at least 50 g/10 min higher than the MFR2 of component a), measured according to ISO 1133 (190 C, 2.16 kg), in an amount from 15 to 35 wt.-%, more preferably from 20 to 30 wt.-%; and - a third ethylene copolymer with at least a first C4-C12 alpha-olefin comonomer, in an amount from 35 to 75 wt.-%, more preferably from 45 to 65 wt.-%; wherein the amounts are based on the total weight of the first multimodal ethylene copolymer (CP1) and/or the second multimodal ethylene copolymer (CP2)."
The patent application was internationally filed on Oct. 13, 2023, under International application No.PCT/EP2023/078548.
Disclaimer: Curated by HT Syndication.
