MODIFIED POLYETHYLENE RESINS AND METHOD FOR MAKING THE SAME

• Main Authors: GOMES JORGE CAMINERO, WILLIAMSON ALEXANDER, BALASUBRAMANIAM SHARAVANAN
• Format: Patent
• Language: Chinese; English
• Published: 09.11.2018
• Subjects: CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP

A method for increasing the melt strength and/or low shear viscosity of a polyethylene resin, the method comprising: a) providing a first polyethylene resin having a density ranging from 0.900 g/cm3 to 0.970 g/cm3, a melt index ranging from 0.01 g/10 min to 30 g/10 min, and at least 0.20 vinyl groups per 1,000 total carbons; b) providing a masterbatch composition comprising a free radical generator and a second polyethylene resin, wherein the free radical generator has a half-life at 220 DEG C of less than 200 seconds, and a decomposition energy higher than -250 kJ/mol, and wherein the secondpolyethylene resin has a density ranging from 0.900 g/cm3 to 0.970 g/cm3, melt index ranging from 0.01 g/10 min to 100 g/10 min; and c) reacting the first polyethylene resin with the masterbatch composition to form a modified polyethylene resin. 种用于提高聚乙烯树脂的熔体强度和/或低剪切粘度的方法，所述方法包含：a)提供密度在0.900g/cm到0.970g/cm范围内、熔体指数在0.01g/10min到30g/10min范围内并且具有至少0.20个乙烯基/1,000个总碳的第聚乙烯树脂；b)提供包含自由基产生剂和第二聚乙烯树脂的母料组合物，其中所述自由基产生剂在220℃下的半衰期小于200秒，并