Title:
RESIN DISPERSIONS WITH LOW SURFACTANT CONCENTRATIONS
Document Type and Number:
WIPO Patent Application WO2007124052
Kind Code:
A8
Abstract:
The invention is a process for removing excess surfactant from a resin dispersion. The excess surfactant is initially required to form the dispersion, but it is not needed to maintain the stability of the dispersion. The process involves the addition of an acid to a dispersion. The acid reacts with one of the surfactants, and the acidified surfactant returns to its original non-neutralized form or its original hydrophobic form and no longer has the structural capacity to serve as a surfactant. The reduction of the surfactant concentration in the dispersions improves the cohesive strength of adhesives made with the dispersions.
Inventors:
MAAS JOOST HUBERT (NL)
MILLER PETER JAMES (US)
MILLER PETER JAMES (US)
Application Number:
PCT/US2007/009664
Publication Date:
March 13, 2008
Filing Date:
April 19, 2007
Export Citation:
Assignee:
EASTMAN CHEM CO (US)
International Classes:
C08J3/03; C09J193/04
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