Addives for paraffinic lubricants

US5043087A · kind A · utility

Assignee

• Rohn Co., Ltd. · JP

Inventors

• Horst Pennewiss · Darmstadt, DE
• Heinz Jost · Seeheim-Jugenheim, DE
• Helmut Knoell · Herbstein, DE

Key dates

• Filing date: Nov 13, 1990
• Grant date: Aug 27, 1991
• Expiry date: Nov 13, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10M2217/02
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Multifunctional additives for lubricating oils containing n-paraffins, said additives comprising a solvent and a blend of polymers containing PA0 (I) from 10 to 99 percent by weight of one or more polymers P1 composed of monomers of PA1 (A) esters of methacrylic acid, acrylic acid, or both PA2 (a) with a linear alcohol having from 16 to 30 carbon atoms, PA2 (b) with a branched alcohol having from 8 to 40 carbon atoms, and optionally, other alcohols, and PA0 (II) from 1 to 90 percent by weight to one or more polymers P2 composed of monomers of PA1 (A') esters of methacrylic acid, acrylic acid, or both PA2 (a') with a linear alcohol having from 16 to 30 carbon atoms, and, optionally other alcohols.