Cleaning composition

Patent metadata

Field	Value
Publication number	US-11053462-B2
Application number	US-201716084622-A
Country	US
Kind code	B2
Filing date	Mar 3, 2017
Priority date	Mar 14, 2016
Publication date	Jul 6, 2021
Grant date	Jul 6, 2021

Abstract

Provided herein is a cleaning composition including: from 20 to 90% by weight of dimethyl sulfoxide, from 5 to 30% by weight of at least one mineral oil (M), and from 5 to 50% by weight of at least one bipolar organic solvent (L). The ranges of proportions indicated are in each case based on the total weight of the cleaning composition. Also provided herein is a method of cleaning components by employing the cleaning composition, and also the cleaned components themselves.

First claim

The invention claimed is:

1. A cleaning composition comprising:
from 45 to 70% by weight of dimethyl sulfoxide;
from 10 to 25% by weight of at least one mineral oil (M); and
from 20 to 30% by weight of 2-ethylhexanol,
wherein the ranges of proportions indicated are in each case based on the total weight of the cleaning composition.

2. The cleaning composition as claimed in claim 1 comprising at least one paraffinic and/or naphthenic mineral oil (M).

3. The cleaning composition as claimed in claim 2 comprising at least one isoparaffin-based mineral oil (M).

4. The cleaning composition as claimed in claim 1 comprising, based on the total amount of the cleaning composition, not more than 5% by weight of aromatic mineral oils.

5. The cleaning composition as claimed in claim 1 comprising at least 80% by weight of dimethyl sulfoxide, at least one mineral oil, and 2-ethylhexanol.

6. A method of cleaning components comprising articles, components, and/or industrial plants and parts of such industrial plants, wherein a cleaning composition as claimed in claim 1 is contacted with said components.

7. The cleaning composition as claimed in claim 4 , wherein the cleaning composition comprises, based on the total amount of the cleaning composition, no aromatic mineral oils.

8. The cleaning composition as claimed in claim 5 comprising at least 90% by weight of dimethyl sulfoxide, at least one mineral oil, and 2-ethylhexanol.

9. A cleaning composition consisting of:
from 45 to 70% by weight of dimethyl sulfoxide;
from 10 to 25% by weight of at least one miner oil (M); and
from 20 to 30% by weight of at least one bipolar organic solvent (L) selected from the group consisting of aliphatic monoalcohols, wherein the ranges of proportions indicated are in each case based on the total weight of the cleaning composition.

10. A method of cleaning components comprising articles, components, and/or industrial plants and parts of such industrial plants, wherein a cleaning composition as claimed in claim 9 is contacted with said components.

Assignees

• Basf Coatings Gmbh

Inventors

• Steinmetz Bernhard
• Jankowski Peggy
• Luhmann Nadia
• Matura Michael

Classifications

• C11D7/247

  aromatic · CPC title

• C09D9/005

  containing organic solvents · CPC title

• C11D7/5009 Primary

  containing phosphorus, sulfur or silicon, e.g. dimethylsulfoxide · CPC title

• C11D7/242

  branched · CPC title

• C11D7/261

  Alcohols; Phenols · CPC title