George A Mackey, 84Blacklick, OH

6818163, Nov 16, 2004

Nov 16, 2001

09/890907

Richard F. Fibiger - Midland MI
Kyung W. Suh - Midland MI
Mark A. Barger - Midland MI
Joseph A. Schomaker - Mt. Pleasant MI
Wenbin Liang - Sugar Land TX
George A. Mackey - Newark OH
Harvey C. Tung - Newark OH

Dow Global Technologies Inc. - Midland MI

B29C 4402

264 51, 264108

An improved process for making a structural foamed polymer, a multilayer polymer film, sheet or tube, a pultrusion polymer profile, a compression molded extruded fiber reinforced polymer pre-form, a strand foamed polymer and a SCORIM formed polymer article. The improvement includes the step of dispersing a multi-layered silicate material with the polymer so that the polymer has dispersed therein single layers of silicate material, double layers of silicate material, triple layers of silicate material, four layers of silicate material, five layers of silicate material and more than five layers of silicate material, the volume percent of the one, two, three, four and five layers of silicate material greater than the volume percent of the more then five layers of silicate material. In each of the above embodiments an important benefit of the instant invention is the orientation of the plane of the layers of silicate material. Preferably, most of the layers of silicate material have substantially the same orientation within thirty degrees of angle.

6310112, Oct 30, 2001

Nov 15, 2000

9/713408

Chau Van Vo - Souffelweyersheim, FR
Jerry L. Hahnfeld - Midland MI
Felix Achille - Midland MI
Daniel D. Imeokparia - Midland MI
George A. Mackey - Midland MI

The Dow Chemical Company - Midland MI

C08J 900

521134

This invention provides a thermoplastic polymer foam having a density of up to 800 kg/m. sup. 3. The foam is made from a hydrogenated vinyl aromatic polymer that contains pendant cycloaliphatic groups. This polymer is conveniently made by hydrogenating a poly(vinyl aromatic) polymer such as polystyrene or a polystyrene-butadiene block copolymer. A suitable blowing agent is a mixture comprising (a) one or more fluorine-containing carbon compounds and (b) carbon dioxide, nitrogen, an alcohol having from 1 to 4 carbon atoms, a linear or cyclic hydrocarbon having from 1 to 6 carbon atoms, a ketone, an alkyl ether, an alkyl halide, water or a mixture thereof.