Engine cleaning composition and method for cleaning the engine
US8809248B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 26, 2010 |
| Grant date | Aug 19, 2014 |
| Priority date | — |
| Expiry date | Aug 18, 2030 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/20
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
The present invention provides a method of cleaning an engine having at least one combustion chamber, and the method includes the steps of providing an engine cleaning composition and introducing the cleaning composition into the combustion chamber. The engine cleaning composition includes: (i) 10-100 wt % of an alkanol amine hydroxy carboxylate represented by formula (I): RCHOHCOONHa+1((CH2)nOH)b (I), wherein n is an integer in the range of 1 to 10; a is 0, 1 or 2; b is 1, 2 or 3; such that a+b=3; R represents hydrogen atom or alkyl; (ii) 0-90 wt % of a surfactant; (iii) 0-90 wt % of a solvent; and (iv) 0-90 wt % of water. The present invention also provides an engine cleaning composition to remove carbon deposit from engines.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.