EP 0028789 A1 19810520 - Hydraulic fluid with improved properties.
Title (en)
Hydraulic fluid with improved properties.
Title (de)
Hydraulische Flüssigkeit mit verbesserten Eigenschaften.
Title (fr)
Fluide hydraulique à propriétés améliorées.
Publication
Application
Priority
DE 2945094 A 19791108
Abstract (en)
[origin: US4371448A] A hydraulic fluid which substantially fulfils the specification DOT 5 is described. This hydraulic fluid essentially consists of (A) about 20 to 40% by weight of at least one boric acid ester obtained from orthoboric acid, diethylene glycol and an ethylene glycol monoalkyl ether; (B) 30 to 60% by weight of at least one ethylene glycol monoalkyl ether; (C) 10 to 40% by weight of at least one bis-(ethylene glycol monoalkyl ether)-formal; (D) 0.1 to 5% by weight of at least one alkylamine; and (E) 0.05 to 5% by weight of at least one stabilizer and/or inhibitor; the percentages by weight in each case being relative to the total weight of the fluid.
Abstract (de)
Es wird eine hydraulische Flüssigkeit beschrieben, die die Spezifikation DOT 5 weitgehend erfüllt. Diese hydraulische Flüssigkeit besteht im wesentlichen aus A) etwa 20 bis 40 Gew.-% von mindestens einem Borsäureester aus Orthoborsäure, Diethylenglykol und einom Ethylenglykolmonoalkylether; B) 30 bis 60 Gew-% von mindestens einem Ethylenglykolmonoalkylether; C) 10 bis 40 Gew.-% von mindestens einem Bis-(ethylenglykolmonoalkylether)- formel; D) 0.1 bis 5 Gew.-% von mindestens einem Alkylamin; und E) 0.05 bis 5 Gew.-% von mindestens einem Stabilisator und/oder Inhibitor; Gewichtsprozente jeweils bezogen auf das Gesamtgewicht der Flüssigkeit.
IPC 1-7
IPC 8 full level
C10M 111/04 (2006.01); C10M 169/04 (2006.01); C10N 30/02 (2006.01); C10N 40/08 (2006.01)
CPC (source: EP US)
C10M 105/78 (2013.01 - EP US); C10M 107/34 (2013.01 - EP US); C10M 111/04 (2013.01 - EP US); C10M 169/04 (2013.01 - EP US); C10M 2207/023 (2013.01 - EP US); C10M 2207/025 (2013.01 - EP US); C10M 2207/026 (2013.01 - EP US); C10M 2207/125 (2013.01 - EP US); C10M 2207/129 (2013.01 - EP US); C10M 2209/1033 (2013.01 - EP US); C10M 2209/1045 (2013.01 - EP US); C10M 2209/1055 (2013.01 - EP US); C10M 2209/1065 (2013.01 - EP US); C10M 2209/1075 (2013.01 - EP US); C10M 2209/1085 (2013.01 - EP US); C10M 2209/1095 (2013.01 - EP US); C10M 2215/04 (2013.01 - EP US); C10M 2215/042 (2013.01 - EP US); C10M 2215/065 (2013.01 - EP US); C10M 2215/22 (2013.01 - EP US); C10M 2215/221 (2013.01 - EP US); C10M 2215/225 (2013.01 - EP US); C10M 2215/226 (2013.01 - EP US); C10M 2215/26 (2013.01 - EP US); C10M 2215/30 (2013.01 - EP US); C10M 2219/108 (2013.01 - EP US); C10M 2223/04 (2013.01 - EP US); C10M 2223/042 (2013.01 - EP US); C10M 2227/061 (2013.01 - EP US); C10M 2227/0615 (2013.01 - EP US); C10M 2227/062 (2013.01 - EP US); C10M 2227/0625 (2013.01 - EP US); C10N 2010/02 (2013.01 - EP US); C10N 2040/08 (2013.01 - EP US)
Citation (search report)
- FR 2281372 A1 19760305 - BASF AG [DE]
- DE 2437936 A1 19760219 - BASF AG
- EP 0013925 A1 19800806 - HOECHST AG [DE]
- US 3711411 A 19730116 - SAWYER A, et al
- DE 2532228 A1 19760129 - UNION CARBIDE CORP
- US 3925223 A 19751209 - COFFMAN ROBERT L, et al
- DE 2438038 A1 19750220 - CHUO KAGAKU KOGYO KK
- FR 2278759 A1 19760213 - UNION CARBIDE CORP [US]
- FR 2240283 A1 19750307 - CHUO KAGAKU KOGYO KK [JP]
- GB 1508143 A 19780419 - BASF AG
- NL 7410396 A 19750213 - CHUO KAGAKU KOGYO KK
Designated contracting state (EPC)
AT BE CH DE FR GB IT NL SE
DOCDB simple family (publication)
EP 0028789 A1 19810520; EP 0028789 B1 19830831; AT E4550 T1 19830915; BR 8007194 A 19810512; CA 1168651 A 19840605; DE 2945094 A1 19810521; DE 3064713 D1 19831006; JP S5676498 A 19810624; MX 155641 A 19880408; US 4371448 A 19830201; ZA 806880 B 19811125
DOCDB simple family (application)
EP 80106748 A 19801103; AT 80106748 T 19801103; BR 8007194 A 19801106; CA 364226 A 19801107; DE 2945094 A 19791108; DE 3064713 T 19801103; JP 15602780 A 19801107; MX 18467580 A 19801107; US 20432680 A 19801105; ZA 806880 A 19801107