Invention Grant
US08721744B2 Copolymer with high chemical homogeneity and use thereof for improving the cold flow properties of fuel oils
有权
具有高化学均匀性的共聚物及其用途，用于改善燃料油的冷流动性能
- Patent Title: Copolymer with high chemical homogeneity and use thereof for improving the cold flow properties of fuel oils
- Patent Title (中): 具有高化学均匀性的共聚物及其用途，用于改善燃料油的冷流动性能
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Application No.: US13176317Application Date: 2011-07-05
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Publication No.: US08721744B2Publication Date: 2014-05-13
- Inventor: Frank-Olaf Maehling , Jan Strittmatter , Irene Troetsch-Schaller , Ivette Garcia Castro , Michael Schroers , Uwe Rebholz
- Applicant: Frank-Olaf Maehling , Jan Strittmatter , Irene Troetsch-Schaller , Ivette Garcia Castro , Michael Schroers , Uwe Rebholz
- Applicant Address: DE Ludwigshafen
- Assignee: BASF SE
- Current Assignee: BASF SE
- Current Assignee Address: DE Ludwigshafen
- Agency: Oblon, Spivak, McClelland, Maier & Neustadt, L.L.P.
- Main IPC: C10L1/196
- IPC: C10L1/196
Abstract:
A copolymer with high chemical homogeneity, consisting of (A) 50 to 30% by weight of ethylene, (B) 50 to 70% by weight of C4- to C24-hydrocarbyl ester of (meth)acrylic acid, (C) 0 to 5% by weight of (meth)acrylic acid and (D) 0 to 10% by weight of copolymerizable monomers, obtainable by polymerizing a mixture of 80 to 60% by weight of ethylene, 20 to 40% by weight of (meth)acrylic acid and 0 to 10% by weight of copolymerizable monomers in a backmixing, continuous polymerization apparatus, and subsequently polymer-analogously esterifying the resulting copolymer with C4- to C24-hydrocarbinols. The inventive copolymer is suitable for improving the cold flow properties of fuel oils, for lowering the lower mixing temperature of cold flow improver additives into fuel oils, and for improving the filterability of fuel oils comprising cold flow improver additives.
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