IP Library Granted Patent US 8,828,915
Granted Patent B2
US 8,828,915 · App. 13/030,523 · Granted Sep 9, 2014

Thixotropic corrosion protection additives for preservative liquids and lubricating greases

Inventors: Markus Kuilder (Oftersheim, DE); Steffen Sandhöfner (Neuluβheim, DE)
Assignee: Rhein Chemie Rheinau GmbH
C10M141/08C10M2207/126C10M2223/043C10N2230/02C10M2219/044C10N2230/12C10N2240/40
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Quick Facts
Patent No.
US 8,828,915
App. No.
13/030,523
Granted
Sep 9, 2014
Kind
B2
Abstract

The invention relates to novel thixotropic corrosion protection additives, to carrier substances comprising these corrosion protection additives, to processes for their preparation and to their use for preservative liquids and lubricating greases.

Claims (11)

1. Thixotropic corrosion protection additives, comprising: a mixture of at least one dialkylbenzenesulphonate and a coconut fatty acid, wherein the quantitative ratio of the dialkylbenzenesulphonate to the coconut fatty acid is 5:1 to 1:5.

2. Thixotropic corrosion protection additives according to claim 1 , wherein the dialkylbenzenesulphonate is a compound or a mixture of compounds where alkyl is a C 8 -C 24 -alkyl.

3. Thixotropic corrosion protection additives according to claim 1 , wherein the dialkylbenzenesulphonate comprises a mixture of dialkylbenzenesulphonates.

4. A process for the preparation of the thixotropic corrosion protection additives according to claim 1 , comprising: reacting the at least one dialkylbenzenesulphonic acid with at least one base and then adding thereto the coconut fatty acid.

5. Carrier substances comprising the thixotropic corrosion protection additive according to claim 1 .

6. Carrier substances according to claim 5 , wherein said carrier substances are oils, solvents or fats.

7. Process for preserving liquids of lubrication greases, comprising:

adding the thixotropic corrosion protection additives according to claim 1 to said preserving liquids of lubrication greases.

8. A process for the preparation of the thixotropic corrosion protection additives according to claim 1 , comprising:

neutralizing the dialkylbenzenesulphonic acid with a base in the presence of the coconut fatty acid.

9. Thixotropic corrosion protection additives, comprising: a mixture of at least one dialkylbenzenesulphonate and a coconut fatty acid, wherein the quantitative ratio of the dialkylbenzenesulphonate to the coconut fatty acid is 3:1 to 1:3.

Assignments (2)
MERGER Recorded Apr 18, 2017
From: RHEIN CHEMIE RHEINAU GMBH
To: LANXESS DEUTSCHLAND GMBH
Reel/Frame 042276/0052 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Aug 15, 2011
From: KUILDER, MARKUS; SANDHOFNER, STEFFEN
To: RHEIN CHEMIE RHEINAU GMBH
Reel/Frame 026749/0151 →
Priority Claims (1)
EP 10154383 · Feb 23, 2010 · regional
Continuity (1)
Related Publication 20110294710A1 · Dec 1, 2011