Use of products of the reaction of alkenyl-spiro-bislactones with amines as paraffin-dispersants

US5186720A · kind A · utility

Assignee

• Hoechst GmbH · DE

Inventors

• Michael Feustel · Kelkheim, DE
• Werner Ritschel · Hofheim, DE

Key dates

• Filing date: Aug 15, 1990
• Grant date: Feb 16, 1993
• Expiry date: Aug 15, 2010

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C10L1/146
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

The use of products of the reaction of alkenyl-spirobislactones of the formula ##STR1## in which R is in each case C.sub.8 -C.sub.200 -alkenyl, with amines of the formula EQU NR.sup.1 R.sup.2 R.sup.3 in which R.sup.1, R.sup.2 and R.sup.3 may be identical or different and at least one of these groups R.sup.1, R.sup.2 or R.sup.3 is C.sub.8 -C.sub.36 -alkyl, C.sub.8 -C.sub.36 -alkenyl or cyclohexyl and the other groups are hydrogen or a group of the formula --(A--O).sub.x H or --(CH.sub.2).sub.n --NYZ, A is --C.sub.2 H.sub.4 -- and/or --C.sub.3 H.sub.6 --, x is a number from 1 to 20, n is 2 or 3 and Y and Z may be identical or different and are hydrogen or a group of the formula (--A--O).sub.x H, as paraffin-dispersants in middle distillates and crude oil.