EP 0475052 A1 19920318 - Coldstable petroleum middle distillates, containing polymers as paraffin dispersants.
Title (en)
Coldstable petroleum middle distillates, containing polymers as paraffin dispersants.
Title (de)
Kältestabile Erdölmitteldestillate, enthaltende Polymere als Paraffindispergatoren.
Title (fr)
Distillats moyens de pétrole stables au froid, contenant des polymères comme dispersants de paraffine.
Publication
Application
Priority
DE 4025586 A 19900811
Abstract (en)
The present invention relates to cold-stable petroleum middle distillates, containing small quantities of polymers which contain significant proportions of aromatic vinyl units and units based on olefinically unsaturated monocarboxylic acids, of the general formula Ia and/or Ib <IMAGE> or consist of these, R<1> being hydrogen or C1- to C6-alkyl and R<2> and R<3> independently of one another being C10- to C30-alkyl.
Abstract (de)
Die vorliegende Erfindung betrifft kältestabile Erdölmitteldestillate, enthaltend geringe Mengen von Polymeren, die wesentliche Anteile von Vinylaromateneinheiten und auf olefinisch ungesättigte Monocarbonsäuren zurückgehende Einheiten der allgemeinen Formel Ia und/oder Ib <IMAGE> enthalten oder aus diesen bestehen, wobei R¹ Wasserstoff oder C1- bis C6-Alkyl und R² und R³ unabhängig voneinander C10- bis C30-Alkyl bedeuten.
IPC 1-7
IPC 8 full level
C10L 1/14 (2006.01); C10L 1/195 (2006.01); C10L 1/196 (2006.01); C10L 1/236 (2006.01); C10L 1/18 (2006.01); C10L 1/22 (2006.01)
CPC (source: EP)
C10L 1/146 (2013.01); C10L 1/195 (2013.01); C10L 1/1963 (2013.01); C10L 1/2364 (2013.01); C10L 1/1966 (2013.01); C10L 1/1973 (2013.01); C10L 1/2368 (2013.01)
Citation (search report)
- [X] GB 1593672 A 19810722 - EXXON RESEARCH ENGINEERING CO
- [Y] GB 802588 A 19581008 - CALIFORNIA RESEARCH CORP
- [YD] EP 0100443 A2 19840215 - BASF AG [DE]
- [Y] FR 2137896 A2 19721229 - ICI LTD
- [Y] EP 0343981 A1 19891129 - EXXON CHEMICAL PATENTS INC [US]
- [A] GB 1123944 A 19680814 - SHELL INT RESEARCH
Designated contracting state (EPC)
BE DE ES FR GB IT NL
DOCDB simple family (publication)
EP 0475052 A1 19920318; DE 4025586 A1 19920213; NO 913106 D0 19910809; NO 913106 L 19920212
DOCDB simple family (application)
EP 91112771 A 19910730; DE 4025586 A 19900811; NO 913106 A 19910809