Dow Global Technolgoies LLC

Gavin D Vogel

Myron J Maurer

Scott T Burr

Matthew J Turpin

Prashant Sharad Shembekar

Matthew D Mittag

Laxman P Katakkar

Srinivasan Velusamy

Eugenio Toccalino

Kalyan Sehanobish

Chau Van Vo

Andrew N Paquet

David J Moll

Warren H Griffin

Charles A Berglund

Byoung-Ho Choi

Matthew Jon Hallan

Steven B Swartzmiller

Peter E M Aerts

Vo V Chau

A tubesheet, modules incorporating tubesheets and methods for making and using the same. In one embodiment the invention includes a tubesheet comprising: i) a plurality of aligned semi-permeable hollow fiber membranes each comprising a cylindrical porous structure surrounding a lumen and extending between a first and second end and further comprising a first segment located adjacent the first end and a second segment located adjacent to the second end and ii) a block of potting material including an interfacial surface. The first segment of the hollow fiber membrane is embedded within the block of potting material and the second segment extends from the interfacial surface of the block. The tubesheet further comprises a penetrating extension of potting material within the porous structure of the second segment of the hollow fiber membrane that extends along a length from the interfacial surface of the block to a distal end.

Tubesheet and method for making and using the same

A fluid filter module including an end cap assembly disposed about at least one end of a tubular-shaped housing. The end cap assembly includes a base, fluid port and handle which may optionally comprise an integrally molded structure.

Fluid filter module including handle

A fluid filter module including an end cap assembly disposed about at least one end of a tubular-shaped housing. The end cap assembly includes a base, fluid port and sealed boss which may optionally comprise an integrally molded structure.

Fluid filter module including sealed boss

Cushions for dynamic impact applications include anisotropic cellular polymers made in an extrusion, expanded bead or reactive foaming process. The anisotropic behavior represented by C/C, C/Cand C/C, wherein C, Cand Crepresent the compressive strength of the cellular polymer in each of three orthogonal directions E, V and H, respectively, as measured by compressing a 25-50 mm thick sample of the cellular polymer at a strain rate of 0.08 sto 25% strain, Crepresents the sum of C, Cand C, and at least one of C/C, C/Cand C/Chas a value of at least 0.40, up to about 0.80. The cellular polymer also preferably has density of 1.75 to 2.35 pounds/cubic foot and a compressive stress in the direction of maximum compressive strength of 290-600 kPa at 25% strain when used for headliner countermeasure applications. The cushions are useful in automotive applications such as automotive headliners, door panels, knee bolsters, pillars, headrests, seat backs, load floors or instrument panels.

Impact-absorbing members for dynamic impact applications

An improved energy absorbing member comprising, an thermoplastic cellular polymer in contact with a structural element such as a metal guard rail or automotive door, wherein the cellular polymer has an average cell size of at least about 0.75 mm and at least one of C/C, C/Cand C/Cis about 0.25 to about 0.4 said one of C/C, C/Cand C/Chaving a compressive efficiency of at least 70% at a 60% strain, C, Cand Cbeing the compressive strength of the cellular polymer in each of three orthogonal directions E, V and H where one of these directions is the direction of maximum compressive strength in the foam and Cequals the sum of C, Cand C.

Composite material and method of making the composite material

The present invention includes an article of manufacture with a layer with a plurality of corrugations to form an energy absorbing structure, where each corrugation has a floor and two walls connecting the floor to the base layer and the length of each corrugation is longer than the widest width of the corrugation. The present invention also includes an energy absorbing structure with a multi-layer energy absorber having a layer with a plurality of surface features and a second layer with a second plurality of surface features wherein the surface features of one layer are nested within the surface features of the other layer such that the base layers are adjacent to each other. The present invention also includes a single step method of manufacturing the energy absorbers including forming a two layer material in a single step. Further, the present invention includes a method of absorbing impact energy that involves generating heat through friction between surface features on a pair of base layers.

Impact absorption structure

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Lake Orion, MI, United States of America

Gavin D Vogel