Akzo Nobel N.v.

Berol Nobel Ab

Akzo Nobel Av

Peter Bostrom

Lars Andersson

Kenneth Sundberg

Ingemar Ingvarsson

Annelie Askenbom

ANGsa Myrstrom

Eva Gottberg-Klingskog

The present invention relates to an aqueous concentrate of an associative thickening polymer, the concentrate containing a nonionic surfactant as viscosity-reducing agent. The nonionic surfactant is water-soluble and has the formula

Aqueous concentrate of an associative thickening polymer, and use of a

The present invention relates to a low-viscosity pigment dispersion free from organic solvents and containing a fatty acid amidoalkoxylate as dispersing agent. The amidoalkoxylate is of the formula ##STR1## wherein R is an aliphatic hydrocarbon group having 7-22 carbon atoms, preferably 9-18 carbon atoms, A is an alkyleneoxy group having 2-3 carbon atoms, X is hydrogen or the group (A).sub.n H, wherein A has the meaning stated above, n is a number of 1-15, the sum of all n being 3-20. The pigment dispersion can be used in paints based on water as well as organic solvents.

Pigment dispersion

Aqueous suspension of a cellulose ether, method for the production

Method for producing a suspension in water of a cellulose ether, and dry

Water-soluble polyurethane and use thereof to thicken water-based

Water soluble nonionic cellulose ethers are provided, containing mixed alkylphenoxyalkyleneoxy-2-hydroxy propylene groups, having hydrophilic units composed of (a) alkyleneoxy groups of two or three carbon atoms, in a number from zero to about six, selected from --CH.sub.2 CH.sub.2 O--; ##STR1## and --CH.sub.2 CH.sub.2 CH.sub.2 O--; and (b) one 2-hydroxy propylene group, together with hydrophobic units which are alkylphenoxy groups of the formula ##STR2## where R and R.sub.4 are hydrocarbon groups having from about four to about thirty carbon atoms, preferably from about nine to about eighteen carbon atoms; n.sub.1 is 0 or 1; connected linearly in a group of the general formula: ##STR3## Also provided is a class of cellulose ethers having similar hydrophilic units and hydrophobic units which are alkyloxyalkyleneoxy groups of the formula

Water soluble nonionic cellulose ethers and their use in paints

Growing community of inventors

Kungalv, Sweden

Peter Bostrom