Use of diether compounds for chemically cleaning textile, leather, or fur goods

• US 8,801,807 B2
• Filed: 06/14/2010
• Issued: 08/12/2014
• Est. Priority Date: 06/25/2009
• Status: Active Grant

• Current Assignee: Chemische Fabrik Budenheim KG (Dr August Oetker KG)
• Original Assignee: Chemische Fabrik Budenheim KG (Dr August Oetker KG)
• Inventors: Meyer, Cord, Eigen, Helmut, Seiter, Manfred
• Primary Examiner(s): Pyon, Harold
• Assistant Examiner(s): Hammer, Katie L
• Application Number:
  US13/123,606
• Publication Number:
  US 20120084928A1
• Time in Patent Office: 1,520 Days
• Field of Search: 814/2, 510/285, 510/291
• US Class Current: 8/142
• CPC Class Codes: C11D 2111/12 Soft surfaces, e.g. textile
• CPC Class Codes: C11D 3/0031 Carpet, upholstery, fur or leather cleansers
• CPC Class Codes: C11D 3/2068 Ethers
• CPC Class Codes: C11D 3/43 Solvents
• CPC Class Codes: C11D 7/263 Ethers
• CPC Class Codes: C11D 7/5022 containing oxygen
• CPC Class Codes: D06L 1/02 using organic solvents

Abstract

The invention relates to an improved method for chemically cleaning textile, leather, or fur goods, wherein the goods to be cleaned are brought into contact with a cleaning agent, wherein the cleaning agent comprises at least one solvent, wherein according to the invention a cleaning agent is used comprising a compound of the general formula (I) as a solvent, wherein x is a whole number from 1 to 10 and R¹, R², R³, and R⁴ are selected independently of each other from H, a C₁- to C₂₂-alkyl radical or alkenyl radical, a polyalkylene oxide, a C₃- to C₆-cycloalkyl radical, a carbo- or heterocyclical C₃- to C₆-cycloalkenyl radical, and an aryl radical. The invention further relates to the use of a solvent having the general formula (I) for producing a cleaning agent for chemically cleaning textiles, leather, and fur goods, and a liquid cleaning agent for use in a method for chemically cleaning textile, leather, or fur goods, wherein the cleaning agent comprises a portion of a solvent having the general formula (I).

Claims

1. A method of dry cleaning comprising bringing an article to be cleaned into contact with a cleaning agent comprising a solvent of the general formula (I):

2. The method as set forth in claim 1 wherein R¹ and R² are selected independently from each other from the group consisting of an ethyl, n-propyl, n-butyl, iso-butyl, secondary butyl, tertiary butyl, n-pentyl, iso-pentyl, neopentyl, n-hexyl, iso-hexyl, octyl, iso-octyl, 2-ethylhexyl residue.

3. The method as set forth in claim 1 wherein substituted R¹, R², if present, are substituted with one or more from —

Cl, —

Br, —

I, —

NO₂, —

NR₂, —

COOR, —

C(O)R, —

CONHR and —

CONR₂.

4. The method as set forth in claim 1 wherein the at least one solvent is a compound of the formula (III):

5. The method as set forth in claim 1 wherein the solvent has a flash point of >

55°

C.

6. The method as set forth in claim 1 wherein the cleaning agent also has a proportion of a cleaning booster or a cleaning booster is meteredly added to the cleaning agent during the method or the article to be cleaned is also brought into contact with a cleaning booster during the method.

7. The method as set forth in claim 1 wherein the cleaning agent additionally includes a substance selected from the group consisting of an alkali metal carbonate and a compound which bears one or more free amino groups.

8. The method as set forth in claim 1 wherein the cleaning agent also has a proportion of another solvent which is suitable for the cleaning of textile, leather or fur goods and which is different from the solvent of the formula (I) or another solvent which is suitable for the cleaning of textile, leather or fur goods and which is different from the solvent of the formula (I), wherein the other solvent is meteredly added to the cleaning agent during the method or the article to be cleaned is also brought into contact with another solvent which is suitable for the cleaning of textile, leather or fur goods and which is different from the solvent of the formula (I) during the method.

9. The method as set forth in claim 1, wherein the cleaning agent further comprises at least one substance selected from the group consisting of a cleaning booster;

an alkali metal carbonate;

a compound which bears one or more free amino groups; and

another solvent which is suitable for the cleaning of textile, leather or fur goods and which is different from the solvent of the general formula (I).

10. The method as set forth in claim 9 wherein the cleaning booster is selected from the group consisting of anionic surfactants, cationic surfactants, non-ionic surfactants, amphoteric surfactants, microbicides, preserving agents, feel improvers, finishes, fragrance substances, water, preserving agents, odor absorbers, anti-static components, dissolving intermediaries, corrosion inhibitors, deodorants, emulsifiers, finishing agents, fluorocarbon resins or combinations thereof.

11. The method as set forth in claim 9 wherein the other solvent which is suitable for the cleaning of textile, leather or fur goods and which is different from the solvent of the general formula (I) is selected from the group consisting of perchloroethylene, aromatic hydrocarbons, light benzenes, Stoddard solvent, white spirit, chlorohydrocarbons (CHC), fluorochlorohydrocarbons (FCHC), isoparaffins (HBS) and cyclosiloxane D5 (decamethylcyclopentasiloxane) and combinations thereof.

12. The method as set forth in claim 1 wherein the solvent has a flash point of ≧

62°

C.

13. The method as set forth in claim 1 wherein the solvent has a boiling point of <

215°

C. at 1013 mbar.

14. The method as set forth in claim 1 wherein the article to be cleaned is a textile, leather or fur good.

15. The method as set forth in claim 1 further comprising contacting the article with the cleaning agent in a cleaning machine that is a closed system in which the solvent is recycled.