Dow Global Technolgoies LLC

Rohm and Haas Company

Dow Silicones Corporation

Robert Baumann

Roland Adden

Mark D Westmeyer

Wei-Wen Tsai

Gary D Parsons

Marc Schmitz

Margarita Perello

Hongwei Shen

Yvonne M Goerlach-Doht

Juergen Hermanns

David M Conner

Michael J Radler

Alexandra Hild

Michael H Mazor

Hartmut Kuehn

Sandra Hofmann

Etienne Lazarus

Jouko Vyorykka

Juergen Dombrowski

Joerg Neubauer

Adam Wade Freeman

Jöerg Neubauer

Grit Grote

Philip M Imbesi

Marco Grosstueck

Gerold A Lohmuller

Yafei Zhu

Jörn Breckwoldt

Sipei Zhang

Steffen Schmidt

Jean-Paul Lecomte

Gerald Adolf Lohmüller

Juergen Dombroski

Marc Dow Global Technologies Llc Schmitz

Nipon Pothayee

Daniel S Woodman

Adam W Freeman

Richard Cesaretti

Jai Venkatesan

Attiganal N Sreeram

Sophie Hauswalt-Grolieres

A process for producing a crosslinked cellulose ether including contacting an activated cellulose material with (i) an aqueous crosslinking agent emulsion, wherein the aqueous crosslinking agent emulsion is a mixture of (ia) at least one crosslinking agent; (ib) water; and (ic) any other optional components desired; and (ii) at least one etherification reagent; wherein the aqueous crosslinking agent emulsion (i) and the at least one etherification reagent (ii) react with the activated cellulose material to form the crosslinked cellulose ether; and a crosslinked cellulose ether produced by the above process.

Process for producing a crosslinked cellulose ether

A concrete-forming composition for producing a concrete article including: (a) at least one internal curing agent including a water-insoluble crosslinked cellulose ether wherein the water-insoluble crosslinked cellulose ether has a higher water adsorption capacity compared to typically used superabsorbent polymers and wherein the water-insoluble crosslinked cellulose ether can be successfully and efficiently used as a water-insoluble crosslinked cellulose either internal curing agent in concrete-forming compositions; and (b) a cementitious material; a process for making the above concrete-forming composition; and a concrete article made from the above concrete-forming composition with the objective of reducing autogenous shrinkage and crack formation in the resulting concrete article made from the above concrete-forming composition.

Concrete-forming composition

A composition including: (a) at least one anionically stabilized acrylic polymer dispersion where the acrylic polymer contains acid monomer units; and (b) at least on polyamino siloxane relative to the weight of the total polymers in the composition, wherein the polyaminosiloxane copolymer containing steric stabilizing groups having a pendant group with a secondary or a primary amine functionality; and (ii) at least a portion of the silicon atoms in the polyaminosiloxane copolymer containing steric stabilizing groups having a pendant alkyl-poly(ethylene oxide) chain with 5 ethylene oxide units to 20 ethylene oxide units.

Waterborne composition

The present invention provides substantially nonionic brush polymers having pendant polyether groups, preferably poly(alkylene glycol) groups, which polymers are useful as synthetic polymer substitutes for cellulose ethers in mortars and hydraulic binders. The brush polymers are preferably crosslinked, such as with ethylene glycol di(meth)acrylates.

Synthetic polymer rheology modifier and water retention agent replacement for cellulose ether in cement compositions

A mortar contains cement, one or more than one mineral additive, superplasticizer, aggregates, a hydroxyethyl methyl cellulose and water, wherein the hydroxyethyl methyl cellulose is characterized by the sum of its hydroxyethyl molecular substitution and methyl degree of substitution is 1.90 or higher and 2.30 or lower and its viscosity as a 2 weight-percent aqueous solution that is below 30,000 milliPascals*seconds.

Mortar with hydroxyethyl methyl cellulose for self-compacting concrete

The invention relates to a cementitious composition that can effectively reduce the adsorption of water, which comprises a) at least one polymer that is the polymerization product of one or more ethylenically unsaturated monomers, in the form of their polymer dispersions and water-redispersible polymer powders; and b) at least one alkyl and/or alkenyl substituted dicarboxylic acids or anhydrides.

Hydrophobic cementitious composition

The present invention provides compositions comprising redispersible polymer powders of polyolefins with carboxyl group containing dispersant polymers and vinyl ester copolymers which may further comprise hydraulic or water curable inorganic cements for various construction applications, such as cement tile adhesives. Methods of making redispersible polymer powders of polyolefins are also provided, including forming an aqueous polyolefin dispersion, such as, for example, by mechanical dispersion, followed by drying to form the redispersible polymer powders.

Redispersible polymer powder from polyolefin dispersions and the use thereof in construction applications

The present invention relates to polysaccharide derivatives having an adjusted particle morphology for use in the preparation of a hydraulic setting composition having an adjusted lump rating. The invention further relates to a method of adjusting the lump rating of a hydraulic setting composition comprising adjusting the particle morphology of a particulate polysaccharide derivative. Furthermore, the invention is directed to a hydraulic setting composition comprising a particulate polysaccharide derivative having an adjusted particle morphology. The invention is also directed to various uses of the particulate polysaccharide derivative having an adjusted particle morphology.

Polysaccharide derivatives having an adjusted particle morphology for hydrolytically setting compositions

A water redispersible polymer powder is produced by drying an aqueous mixture of a high Tcarboxylated styrene butadiene polymer and a low Tcarboxylated styrene butadiene polymer, where the ratio of the mean or average particle size of the high Tpolymer to the particle size of the low Tpolymer is from 1:1 to 5:1, preferably from 1:1 to 3:1, and the amount of the high Tpolymer is from 20 wt. % to 35 wt. %, preferably from 25 wt. % to 30 wt. %, based upon the total weight of the high Tpolymer and the low Tpolymer. Cement compositions such as mortars, which contain the redispersible polymer powder exhibit unexpectedly superior high bond strength and high impact resistance.

Redispersible polymer powders prepared from blends of carboxylate

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Rueschlikon, Switzerland

Robert Baumann