Bulky synthetic pulp sheet useful as a separator for...

Details Bulky synthetic pulp sheet useful as a separator for... Bulky synthetic pulp sheet useful as a separator for...

D - Textiles, Paper

21

H

D21H 13/12 (2006.01) D21H 13/14 (2006.01) D21H 15/10 (2006.01) D21H 25/04 (2006.01) H01M 2/14 (2006.01) H01M 2/16 (2006.01)

Patent

CA 2119398

ABSTRACT A bulky synthetic pulp sheet which does not lose its shape even after having absorbed a liquid and has excellent resistance against chemicals such as acids and alkalis, and a process for preparing the same. A separator for cells is also obtained using the above bulky synthetic pulp sheet. The bulky synthetic pulp sheet contains 5 to 95 % by weight of a synthetic pulp having a drainage factor over a range of from 0.1 to 2.0 sec/g and 5 to 50 % by weight of a polymer binder having a melting point lower than a melting point or a decomposition temperature of said synthetic pulp, the sheet being obtained by subjecting a mixture of said synthetic pulp and said fibrous binder to the wet-type sheet-making and to the heat treatment, and having an apparent density of 0.15 g/cm3 or smaller under the load of 200 g/cm2.

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