Hydrocarbon adsorption slurry washcoat formulation for use at low temperature
US7540904B2 · kind B2 · utility
8Cited by
18References
20Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Nov 17, 2005 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Jun 19, 2027 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB01D2258/01
- WIPO fieldChemical engineering
- WIPO sectorChemistry
Abstract
The present invention is directed to an improved hydrocarbon adsorbent slurry washcoat formulation, which can be used for controlling evaporative hydrocarbon emissions from a motor vehicle. More specifically, the present invention is directed to an improved slurry composition of the present invention comprises one or more hydrocarbon adsorbent materials, and an organic polymer binder containing an anionic dispersant and/or stabilizing pH. The binder is used to improve the adhesion of the hydrocarbon adsorbent to the surface of the fuel storage, fuel delivery, or air intake system component.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.