Patent · US Active

Methods and compositions for removing residues and substances from substrates using environmentally friendly solvents

US8201445B2 · kind B2 · utility

3Cited by

27References

6Claims

0Family size

Assignee

North Carolina State University · US

Inventors

Ruben G. Carbonell · Raleigh, US
Peter Kilpatrick · Raleigh, US
Nael Naguib Zaki · Peoria, US

Key dates

Filing date	Aug 30, 2011
Grant date	Jun 19, 2012
Priority date	—
Expiry date	Aug 30, 2031

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC11D2111/48
WIPO fieldChemical engineering
WIPO sectorChemistry

Abstract

Environmentally friendly solvents used to dissolve or remove residues and/or substances from substrates wherein the residue and/or substance is contacted with a Generally Recognized As Safe solvent to dissolve the residue and/or substance in the solvent followed by the extraction of the residue and/or substance from the solvent such as by contact with carbon dioxide.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.