US 7,531,591 B2 · Aqueous dispersion of poly(acetal-polyether) and its use in protective coatings

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.

Claims49

Dependent claims

An aqueous polymer dispersion comprising

a) hydrophobically modified poly(acetal- or ketal-polyether) (HM-PAPE),
b) water, and
c) a viscosity reducing agent selected from the group consisting of
i) an ethoxylated alcohol having a C9-12 hydrocarbon moiety component,
ii) an ethoxylated acetylenic diol,
iii) a phosphate ester,
iv) a combination of an ethoxylated alcohol and an anionic dialkyl sulfosuccinate, and
v) a combination of ethoxytated alcohol and an anionic phosphate ester.

5 more elements

Dependencies are inferred from the claim text.

Facts

Application

11/269,329Filed 8 Nov 2005 · us provisional application

Priority

9 Dec 2004

Published

US 2006/0128846 A115 Jun 2006

Granted

12 May 2009

Term ends

Not estimatedThe source records don’t support an estimate.

Classification10 codes

C08J 3/005
Processes of treating or compounding macromolecular substances: processes for mixing polymers
C08K 5/0008
Use of organic ingredients: organic ingredients according to more than one of the "one dot" groups of C08K5/01 - C08K5/59
C08L 59/00
Compositions of polyacetals
C09J 159/00
Adhesives based on polyacetals

Aqueous dispersion of poly(acetal-polyether) and its use in protective coatings

Life of this patent

Aqueous dispersion of poly(acetal-polyether) and its use in protective coatings

Life of this patent

Abstract

Claims49