The Dow Chemical Company

International Business Machines Corporation

Dow Global Technolgoies LLC

Harry Craig Silvis

Muthumanickam Sankarapandian

Jeffrey Curtis Hedrick

Kalyan Sehanobish

Clark H Cummins

Scott T Matteucci

Christy Sensenich Tyberg

Abel Mendoza

James P Godschalx

William J Kruper

Wendy D Hoenig

John Newton

Marie L Hare

Qingshan J Niu

The present invention appreciates that compounds comprising ester linkages and nitrogen-containing moieties that are at least divalent (e.g., urea, urethane, amide, etc.) can be crosslinked with azides to form membranes that are resistant to COplasticization, that are selective for acid gases relative to nonpolar gases such as hydrocarbons, and that have high acid gas flux characteristics. The resultant membranes have stable structure and stable separation properties at higher temperatures and pressures. The membranes are compatible with many industrial processes in which polar gases are separated from nopolar gases. In an exemplary mode of practice, the membranes can be used to separate acid gases from the hydrocarbon gases in natural or non-acid gas components of flue gas mixtures (e.g., N, O, etc.).

Azide crosslinked and physically crosslinked polymers for membrane separation

A crosslinked polyarylene material with a reduced coefficient of thermal expansion at high temperatures compared with conventional crosslinked polyarylene materials is provided. In addition, an integrated circuit article containing a crosslinked polyarylene polymer with reduced coefficient of thermal expansion at high temperatures is provided.

Composition and method to achieve reduced thermal expansion in polyarylene networks

Disclosed are propylene polymer compositions comprising a high crystalline propylene polymer, a substantially linear ethylene polymer, linear ethylene polymer or combinations thereof, an optional filler and an optional additional polymer. Said propylene polymer compositions have improved processability with a good balance of stillness and toughness which demonstrates improved scratch resistance in injection molded articles.

Propylene polymer composition

Novel ring-brominated derivatives of the diepoxides of tetraalkyl dihydroxydiaromatic compounds, e.g., the diglycidyl ether of 3,5-dibromo-4-(2-(2-bromo-4-hydroxy-3,5-dimethylphenyl)ethyl)-2,6-dimethyl phenol.

Brominated epoxyaromatic compounds

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Midland, MI, United States of America

Harry Craig Silvis