Composition and method for road-film removal
US6339054B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 15, 1999 |
| Grant date | Jan 15, 2002 |
| Priority date | — |
| Expiry date | Dec 15, 2019 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC11D2111/14
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A concentrate and a ready-to-use or diluted formulation for an aqueous vehicle cleaner can remove a wide range of different types of traffic film using either low pressure application, hand pressure application, water jet spray apparatus, clean-in-place systems or other manual or mechanical washing systems. The compositions may comprise, for example, one or more solutions that each or collectively contain or comprises:a) at least one anionic surfactant;b) at least one poly[oxyalkylene] ammonium cationic surfactant; andc) an alkaline agent.Optional additional ingredients may comprise at least one polycarboxylic acid chelating agent (preferably an aminocarboxylic acid chelating agent), at least one non-ionic or amphoteric surfactant, at least one hydrotrope, inorganic and/or organic acids and at least one silicate. The alkaline agent may provide a pH (when the finished product is diluted to 0.5 to 5% by weight in water) will be between about 9 to 13. The concentrate may be provided as a one-part or two part solution. Certain formulations have been found to be shelf stable as one-part concentrate or ready-to-use solutions, even with significantly different properties amongst the compo…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.