Global Patent Index - EP 1067168 A1

EP 1067168 A1 2001-01-10 - Use of polymers as anti-misting additives in waterbased coolant lubricants

Title (en)

Use of polymers as anti-misting additives in waterbased coolant lubricants

Title (de)

Verwendung von Polymeren als Anti-Nebel-Additiv in wasserbasierenden Kühlschmierstoffen

Title (fr)

Utilisation de polymères comme additifs anti-embruns dans les lubrifiants aqueux de refroidissement

Publication

EP 1067168 A1 (DE)

Application

EP 00113201 A

Priority

DE 19931220 A

Abstract (en)

Copolymers with units derived from acrylamide (I) and alkali metal acrylamido alkylsulfonate (II) are used in amounts of 0.01-2 wt.% to prevent mist formation in water-based cooling lubricants. Copolymers with units derived from acrylamide (I) and alkali metal alkali metal acrylamido alkylsulfonate (II) of the given formulae are used in amounts of 0.01-2 wt.% to prevent mist formation in water-based cooling lubricants; R<1> = hydrogen (H) or 1-4 carbon (C) alkyl; R<2> = branched or linear 1-6 C alkylene; Y = an alkali metal . An Independent claim is also included for water-based cooling lubricants containing 0.01-2 wt.% of this copolymer in addition to the usual base materials and optionally functional additives.

Abstract (de)

Gegenstand der Erfindung ist die Verwendung von Copolymeren, welche Struktureinheiten enthalten, die sich aus den Verbindungen der Formeln 1 und 2 ableiten <IMAGE> worin R<1>: H oder C1-C4-Alkyl; R<2>: einen verzweigten oder unverzweigten C1-C6-Alkylenrest; Y: ein Alkalimetall oder Ammonium bedeuten, zur Verhinderung der Nebelbildung in wasserbasierenden Kühlschmierstoffen.

IPC 1-7 (main, further and additional classification)

C10M 173/00; C10M 151/02

IPC 8 full level (invention and additional information)

C10M 173/00 (2006.01); C08F 220/58 (2006.01); C08F 246/00 (2006.01); C10M 149/04 (2006.01); C10M 149/06 (2006.01); C10M 151/02 (2006.01); C10N 10/02 (2006.01); C10N 20/04 (2006.01); C10N 30/00 (2006.01); C10N 40/22 (2006.01)

CPC (invention and additional information)

C10M 173/00 (2013.01); C10M 2201/02 (2013.01); C10M 2207/046 (2013.01); C10M 2207/18 (2013.01); C10M 2209/084 (2013.01); C10M 2209/107 (2013.01); C10M 2215/042 (2013.01); C10M 2215/12 (2013.01); C10M 2215/222 (2013.01); C10M 2217/022 (2013.01); C10M 2217/024 (2013.01); C10M 2217/028 (2013.01); C10M 2221/02 (2013.01); C10M 2229/045 (2013.01); C10M 2229/046 (2013.01); C10M 2229/047 (2013.01); C10M 2229/048 (2013.01); C10N 2240/401 (2013.01); C10N 2250/02 (2013.01); C10N 2270/02 (2013.01)

Combination set (CPC)

C10M 173/00 + C10M 151/02 + C10M 149/04 + C10M 149/06 + C10M 149/10 + C10M 145/14

Citation (search report)

Designated contracting state (EPC)

BE DE ES FR GB IT

EPO simple patent family

EP 1067168 A1 20010110; EP 1067168 B1 20070221; CA 2313570 A1 20010106; DE 19931220 A1 20010118; DE 19931220 B4 20050310; DE 50014078 D1 20070405; ES 2282070 T3 20071016; JP 2001055597 A 20010227; US 6414075 B1 20020702

INPADOC legal status


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2006-08-09 [RIC1] CLASSIFICATION (CORRECTION)

- IPC: C10M 173/00 20060101AFI20060630BHEP

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- IPC: C10M 151/02 20060101ALI20060630BHEP

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