Process for making microporous products and the products...

Details Process for making microporous products and the products... Process for making microporous products and the products...

C - Chemistry, Metallurgy

08

J

18/24

C08J 9/26 (2006.01) B01D 71/52 (2006.01) C08J 3/18 (2006.01) C08J 9/28 (2006.01) C08L 65/00 (2006.01) C08L 71/00 (2006.01) D01D 5/42 (2006.01)

Patent

CA 1313442

P 34385 ABSTRACT OF THE DISCLOSURE A process of producing a structural network from a semicrystalline, melt crystallisable polyarylene ether or polyarylene thioether comprising providing a molten mixture of at least one semicrystalline polymer in the presence of a melt plasticiser for the polymer which melt contains at least some polymer entities having a crystalline form, the total polymer concentration being between 5 and 50% by weight of the mixture of polymer and melt plasticiser, and heating the mixture of polymer and melt plasticiser at a heating rate of between 1°C/hour and 1000°C/hr, preferably between 10°C/hour and 100°C/hour until the mixture is at a temperature in the range 10°C below to 20°C above its clearing point and cooling the mixture until it solidifies whereby an open cell structure essentially free from granular superstructure is obtained.

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