EP 0436151 A1 19910710 - Coldstable petroleum middle distillate containing polymers as paraffin dispersants.
Title (en)
Coldstable petroleum middle distillate containing polymers as paraffin dispersants.
Title (de)
Kältestabile Erdölmitteldestillate, enthaltend Polymere als Paraffindispergatoren.
Title (fr)
Distillat moyen de pétrole stable au froid contenant des polymères comme dispersants de paraffine.
Publication
Application
Priority
DE 3941561 A 19891216
Abstract (en)
Cold-stable petroleum middle distillates contain small quantities of polymers or copolymers which contain substantial fractions of units of formula I <IMAGE> or consist of these, in which R<1> and R<2> independently of one another are hydrogen or low-molecular alkyl or together form a tetramethylene radical and in which R<3> and R<4> are unbranched alkyl radicals having 14 to 24 C atoms. The additives effect very good dispersing and flow improvement.
Abstract (de)
Kältestabile Erdölmitteldestillate,enthaltend geringe Mengen von Polymere oder Copolymeren, die wesentliche Anteile von Einheiten der Formel I <IMAGE> enthalten oder aus diesen bestehen, in der R¹ und R² unabhängig voneinander Wasserstoff oder niedermolekulares Alkyl oder zusammen einen Tetramethylenrest bedeuten und in der R³ und R<4> unverzweigte Alkylreste mit 14 bis 24 C-Atomen bedeuten. Die Zusätze bewirken eine sehr gute Dispergierung und Fließverbesserung.
IPC 1-7
IPC 8 full level
C10L 1/14 (2006.01); C10L 1/22 (2006.01); C10L 1/236 (2006.01); C10L 1/18 (2006.01); C10L 1/24 (2006.01)
CPC (source: EP)
C10L 1/143 (2013.01); C10L 1/2364 (2013.01); C10L 1/188 (2013.01); C10L 1/1963 (2013.01); C10L 1/1966 (2013.01); C10L 1/1973 (2013.01); C10L 1/22 (2013.01); C10L 1/2437 (2013.01)
Citation (search report)
- [X] EP 0283293 A1 19880921 - EXXON CHEMICAL PATENTS INC [US]
- [Y] EP 0040498 A1 19811125 - M & T CHEMICALS BV [NL]
- [X] FR 1147212 A 19571120 - CALIFORNIA RESEARCH CORP
- [X] US 3578421 A 19710511 - ANDRESS HARRY J JR, et al
- [A] FR 2030358 A1 19701113 - MOBIL OIL CORP
- [A] FR 1527669 A 19680607 - SOCONY MOBIL OIL CO
- [A] DE 2022588 A1 19701112 - EXXON RESEARCH ENGINEERING CO
- [A] US 4163645 A 19790807 - CHENG WILLIAM J [US], et al
Designated contracting state (EPC)
AT BE DE ES FR GB IT NL
DOCDB simple family (publication)
EP 0436151 A1 19910710; EP 0436151 B1 19930922; EP 0436151 B2 19970827; AT E94896 T1 19931015; CA 2032246 A1 19910617; DE 3941561 A1 19910620; DE 59002844 D1 19931028; ES 2059967 T3 19941116; ES 2059967 T5 19971016
DOCDB simple family (application)
EP 90123728 A 19901210; AT 90123728 T 19901210; CA 2032246 A 19901214; DE 3941561 A 19891216; DE 59002844 T 19901210; ES 90123728 T 19901210