Dow Global Technolgoies LLC

Rohm and Haas Company

Georgia Tech Research Corporation

Thomas Fitzgibbons

Liren Xu

Mark K Brayden

Marcos V Martinez

William John Koros

Xin Jin

Gyongyi Gulyas

Rahul Sharma

Afua Sarpong Karikari

Michael C Mitchell

An Kaga

Wulin Qiu

Joseph Kao

A sealing composition for use in unit dose packages is provided, including: 70 to 98 wt % water; 1 to 30 wt % of a hydrogen bonding component; and 1 to 30 wt % of a complex forming component.

Sealing compositions for water soluble films and methods of using

The invention is an improved method of making an improved carbon molecular sieve (CMS) membrane in which a precursor polymer (e.g., polyimide) is pyrolyzed at a pyrolysis temperature to form a CMS membrane that is cooled to ambient temperature (about 40&#xb0; C. or 30&#xb0; C. to about 20&#xb0; C.). The CMS membrane is then reheated to a reheating temperature of at least 250&#xb0; C. to 400&#xb0; C. to form the improved CMS membrane. The CMS have a novel microstructure as determined by Raman spectroscopy. The improved CMS membranes have shown an improved combination of selectivity and permeance as well as stability for separating light hydrocarbon gas molecules such as Cto Chydrocarbon gases (e.g., methane, ethane, propane, ethylene, propylene, butane, butylene).

Method of making carbon molecular sieve membranes

A method of making a hollow fiber carbon molecular sieve is comprised of heating a hollow polymer fiber to a carbonization temperature in an atmosphere that is non-oxidizing to form a hollow fiber carbon molecular sieve, wherein during at least a portion of the heating a tensile force is applied to the hollow polymer fiber. The method may improve the separation of gases similar in size such a propylene from propane.

Method to make carbon molecular sieve hollow fiber membranes

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Lake Jackon, TX, United States of America

Thomas Fitzgibbons