Polymer blends and their use as additives for mineral oil middle distillates

US5766273A · kind A · utility

Assignee

• BASF SE

Inventors

• Gabriele Dralle-Voss · Darmstadt, DE
• Knut Oppenlander · Ludwigshafen, DE
• Bernd Wenderoth · Lampertheim, DE
• Dieter Faul · Niederkirchen, DE
• Wolfgang Kasel · Schallstadt, DE

Key dates

• Filing date: Feb 25, 1997
• Grant date: Jun 16, 1998
• Expiry date: Feb 25, 2017

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L1/2437
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Polymer blends contain PA1 a) from 10 to 90% by weight of an imide of a copolymer based on an .alpha.-olefin and on an ethylenically unsaturated dicarboxylic acid and a polyamine and PA1 b) from 10 to 90% by weight of a copolymer which differs from a) and contains at least two monomers selected from the group consisting of ethylene, acrylates, vinyl esters, vinyl ethers and ethylenically unsaturated dicarboxylic acids or dicarboxylic acid derivatives, and are used as additives for mineral oil middle distillates.