Dow Global Technolgoies LLC

The Dow Chemical Company

Rohm and Haas Company

Michael J Radler

Liang Chen

Robert L McGee

Edward Otto Shaffer, Ii

Robert A Devries

Ying Hung So

Mitchell G Dibbs

Roger L Kuhlman

Michael K Poindexter

Wanglin Yu

Alvin Michael Maurice

Mark Alan Barger

Thomas Oswald

Chan Han

Liang Hong

Manesh Nadupparambil Sekharan

Robert L Sammler

Gary D Parsons

Wei-Wen Tsai

Cole A Witham

Hongwei Shen

Kenneth L Foster

Robert Baumann

Michael H Mazor

Jorg Theuerkauf

Kurt A Koppi

Sung-Yu Ku

Stacey A Saba

Yi Fan

Dongkyu Kim

Richard P DeCaire

JoLee M Dominowski

Sean M Keenan

Attiganal N Sreeram

Jai Venkatesan

Richard Cesaretti

Stephen E Fosdick

Cindy L Powell

Michael C Price

Jessica R Levin

Cole Witham

Daniel S Woodman

The present invention provides strategies for improved control of fluid loss, hydration, settling, and separation of aqueous cementing compositions over a wide temperature and time range. The present invention is based at least in part upon water-effusing particles used as additives for the compositions, wherein the particles are activated to control rheology when water soluble portions of the particles are released in the presence of water.

Aqueous cement compositions incorporating particles that are activated to control rheology when water soluble portions of the particles are released in the presence of water

Treat an aggregation of particulates with two different aqueous mixtures, first with an aqueous mixture containing a sulfonated aromatic polymer component and then with an aqueous mixture containing polyethylene oxide.

Sequential treatment with aqueous sulfonated aromatic polymer and aqueous polyethylene oxide for enhanced water retention

The present invention provides compositions useful as a replacement for cellulose ether in cement, plaster or mortar compositions comprising i) nonionic or substantially nonionic vinyl or acrylic brush polymers having pendant or side chain polyether groups, and having a relative weight average molecular weight of from 140,000 to 50,000,000 g/mole, and ii) aromatic cofactors containing one or more phenolic groups, such as catechol tannins, phenolic resins, polyphenolics, and napthhols or, in combination, one or more aromatic groups with at least one sulfur acid group, such as naphthalene sulfonate aldehyde condensate polymers, poly(styrene-co-styrene sulfonate) copolymers, and lignin sulfonates, preferably branched cofactors, including phenolic resins, aldehyde condensate polymers and lignin sulfonates. The compositions may comprise a dry powder blend of i) and ii), one dry powder of both i) and ii), or an aqueous mixture.

Two component synthetic water retention agent and rheology modifier for use in cements, mortars and plasters

An aqueous dispersion of epoxy resin and a redispersible epoxy polymer powder contains particles of 50-90 weight-percent epoxy resin with 10-50 weight-percent alkali soluble shell around the particles and 2-25 weight-percent dispersing aid, with weight-percent based on total combined weight of epoxy resin, alkali soluble polymer shell and dispersing aid.

Water redispersible epoxy polymer powder and method for making the same

The present invention provides a two component geopolymer composition of wherein one component comprises a dry mix of an aluminosilicate, such as flyash, geopolymer precursor and one or more epoxy multilayer polymer particle redispersible polymer powder (RDP) having an epoxy resin core and an alkali soluble polymer shell, the epoxy resin having a calculated glass transition temperature (T) of from 7 to 45&#xb0; C., and, wherein the other component, comprises one or more alkaline silicate geopolymer precursor, preferably in the form of an aqueous solution. The two-component compositions having from 1 to 20 wt. % of the RDP, based on solids, and provide greater formulation flexibility to make geopolymer compositions having improved tensile strength.

Epoxy-multilayer polymer RDP geopolymer compositions and methods of making and using the same

The instant invention is a process for planarizing a microelectronic substrate with a cross-linked polymer dielectric layer, comprising the steps of: (a) heating such a substrate coated with a layer comprising an uncured cross-linkable polymer and a glass transition suppression modifier to a temperature greater than the glass transition temperature of the layer, the temperature being less than the curing temperature of the uncured cross-linkable polymer to form a substrate coated with a heat flowed layer; and (b) heating the substrate coated with the heat flowed layer to a curing temperature of the uncured cross-linkable polymer of the heated layer to cure the uncured cross-linkable polymer to form a planarized substrate wherein the percent planarization at 100 micrometers is greater than fifty percent. The instant invention is a microelectronic device made using the above-described process. The instant invention is a composition of matter, comprising: an essentially solvent free composition comprising an uncured cross-linkable polymer and a glass transition suppression modifier, the composition having a glass transition temperature sufficiently less than the curing temperature of the uncured composition so that if the uncured composition is heated to a temperature above its glass transition temperature but below its curing temperature, the uncured composition will flow.

Planarized microelectronic substrates

The invention is a curable cyclobutarene based polymer comprising acid functional pendant groups. The cured polymer displays excellent qualities of toughness, adhesion, dielectric constant, and low stress. The preferred system is soluble in an aqueous base and can be used to generate patterned films with excellent resolution without the need to handle organic developer solvents.

Acid functional polymers based on benzocyclobutene

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Midland, MI, United States of America

Michael J Radler