Hoechst Celanese Corporation

Hoechst Trespaphan Gmbh

Other

Ravi Prasad

Charles J Runkle

Harry F Shuey

Anthony W Mancusi, Iii

J Clift Delozier

Xiaoyan Huang

A method for producing a coated polymeric article by co-extruding polypropylene and a maleic anhydride modified polypropylene, corona-treating, and applying a polysilicate barrier is described. Also provided are films and bottles produced using this method.

Process for producing coated polymeric articles and the articles produced thereby

A method for removing condensable organics from a fluid is disclosed. A fluid contaminated with condensable organics is provided. A poly (alkyl sulfone) permeable membrane having a selectivity.gtoreq.20 is provided. The fluid is passed along a surface of the membrane. The organics permeate through the membrane. The permeated organics are recycled.

Removal of organics from a fluid using a permeable membrane

Modules for use in fluid separations, especially contained liquid membrane separations, exhibit minimal effective membrane thickness. The modules have a module case and at least one pair of superposed fabric sheets disposed within the case, the fabric sheets being pleated and nested in the lengthwise direction of the case. Each fabric sheet contains warp-wise extending hollow fiber membranes. The hollow fiber membranes within the folds of one fabric sheet will therefore form alternating rows with the hollow fiber membranes within the folds of the other fabric sheet by virtue of the length-wise nested pleating. As a result, the effective membrane thickness value of the module is minimized thereby enhancing the efficacy of fluid separations.

Liquid membrane modules with minimal effective membrane thickness and

This invention provides spiral-wound hollow fiber membrane fabric-containing cartridges and modules for separations and other phase contact applications, in which the cartridges contain baffles that induce radial feed fluid flow in the shell side of the hollow fiber membrane bundle; and methods for fabricating such cartridges.

Spiral-wound hollow fiber membrane fabric cartridges and modules having

This invention provides spiral-wound hollow fiber membrane fabric-containing cartridges and modules for separations and other phase contact applications, including tube sheets having improved solvent resistance and mechanical durability which are fabricated by extrusion of thermoplastic resins having particular defined characteristics, and methods for making the same.

Hollow fiber membrane fabric - containing cartridges and modules having

Method of making spiral-wound hollow fiber membrane fabric cartridges

This invention provides spiral-wound hollow fiber membrane fabric-containing cartridges and modules for separations and other phase contact applications, in which the cartridges contain a turbulence-promoting fibrous web which is substantially-co-extensive to the fabric-like array, that induces turbulent fluid flow in the shell side of the hollow fiber membrane bundle; and methods for fabricating such cartridges.

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Charlotte, NC, United States of America

Ravi Prasad