James G Binder

US Patent:

7531591, May 12, 2009

Filed:

Nov 8, 2005

Appl. No.:

11/269329

Inventors:

Kirill N. Bakeev - Newark DE, US
James G. Binder - Woodstown NJ, US
Theo Klootwijk - Papendrecht, NL
Dirk Kruythoff - Dordrecht, NL
Betty Maagdenberg-Roels - Ambacht, NL
Tuyen T. Nguyen - Newark DE, US
Jeffrey K. Politis - Arden DE, US
Willimlen G. Salomons - Steenbergen, NL

Assignee:

Hercules Incorporated - Wilmington DE

International Classification:

C08K 5/06

US Classification:

524376, 524377

Abstract:

An aqueous dispersion includes an associative thickener based on a hydrophobically modified poly(acetal- or ketal-polyether) (HM-PAPE) and at least one viscosity reducing agent selected from ethoxylated alcohols, ethoxylated acetyleneic diols, phosphate esters, dialkyl sulfosuccinates, and mixtures thereof. This aqueous dispersion improves the incorporation of the HM-PAPEs into aqueous based protective coatings. This dispersion also improves water-borne coating compositions that optionally contain latex.