Title (en)

ADDITIVES FOR USE AS POUR POINT DISPERSANTS FOR MIDDLE DISTILLATE HYDROCARBONS, AND COMPOSITIONS OF MIDDLE DISTILLATE HYDROCARBONS CONTAINING SAID ADDITIVES

Publication

EP 0071513 A3 19830427 (FR)

Application

EP 82401335 A 19820716

Priority

FR 8114870 A 19810730

Abstract (en)

[origin: US4652273A] A hydrocarbon middle distillate contains an additive for decreasing its cloud point, obtained by reacting an aliphatic dicarboxylic compound selected from the maleic and alkylmaleic anhydrides, the alkenylsuccinic and polyalkenylsuccinic anhydrides and the corresponding dicarboxylic acids and lower alkyl diesters with a compound of the formula: R-Z-(CH2)nNH]mH or HO-CH2-R5-NH2 wherein R is a monovalent saturated aliphatic radical, Z is NR' or O, R' being hydrogen or an aliphatic radical, n is an integer from 2 to 4, m is zero or an integer from 1 to 4 and R5 is a divalent saturated aliphatic radical.

IPC 1-7

C10L 1/22; C07C 103/00

IPC 8 full level

C10L 1/18 (2006.01); C10L 1/188 (2006.01); C10L 1/22 (2006.01); C10L 1/224 (2006.01); C10L 1/2383 (2006.01)

CPC (source: EP US)

C10L 1/224 (2013.01 - EP US); C10L 1/2383 (2013.01 - EP US)

Citation (search report)

• [X] FR 2095403 A5 19720211 - INST FRANCAIS DU PETROLE
• [X] US 3068082 A 19621211 - PARIS WILLIAM W, et al
• [X] US 3035907 A 19620522 - HALTER ROBERT E, et al
• [X] US 3046102 A 19620724 - ANDRESS JR HARRY J, et al
• [X] US 2982630 A 19610502 - ANDRESS JR HARRY J
• [X] US 3172853 A 19650309
• [X] FR 1197418 A 19591201 - SOCONY MOBIL OIL CO INC
• [X] FR 2354346 A1 19780106 - TEXACO DEVELOPMENT CORP [US]
• [X] US 3905781 A 19750916 - DORN PETER
• [X] FR 2018439 A1 19700529 - EXXON RESEARCH ENGINEERING CO
• [X] US 4144036 A 19790313 - CUMMINGS WILLIAM M
• [X] US 3444082 A 19690513 - KAUTSKY GEORGE J
• [Y] US 4234435 A 19801118 - MEINHARDT NORMAN A, et al
• [Y] GB 1021183 A 19660302 - LUBRIZOL CORP
• [A] FR 1416295 A 19651029 - ARMOUR & CO
• [A] EP 0034968 A1 19810902 - INST FRANCAIS DU PETROLE [FR], et al
• [P] US 4326987 A 19820427 - HENDRICKS CARL C, et al

Designated contracting state (EPC)

BE DE GB IT LU NL SE

DOCDB simple family (publication)

EP 0071513 A2 19830209; EP 0071513 A3 19830427; EP 0071513 B1 19861120; CA 1192519 A 19850827; DE 3274368 D1 19870108; DK 158993 B 19900813; DK 158993 C 19910121; DK 337682 A 19830131; FI 75361 B 19880229; FI 75361 C 19880609; FI 822674 A0 19820730; FI 822674 L 19830131; FR 2510598 A1 19830204; FR 2510598 B1 19850118; JP H0251478 B2 19901107; JP S58108297 A 19830628; NO 158142 B 19880411; NO 158142 C 19880720; NO 822591 L 19830131; US 4652273 A 19870324

DOCDB simple family (application)

EP 82401335 A 19820716; CA 408447 A 19820730; DE 3274368 T 19820716; DK 337682 A 19820728; FI 822674 A 19820730; FR 8114870 A 19810730; JP 13463682 A 19820730; NO 822591 A 19820728; US 73713385 A 19850523