PROCESS FOR PREPARING A POROUS NYLON FILM
1345349 Porous nylon films FUJI PHOTO FILM CO Ltd 22 Dec 1971 [26 Dec 1970] 59758/71 Heading C3C A porous nylon film having a uniform pore size distribution is made by adding a cyclic ether to a solution of a nylon in an alcohol, flowing the solution on to a flat support so as to form a film which i...
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Zusammenfassung: | 1345349 Porous nylon films FUJI PHOTO FILM CO Ltd 22 Dec 1971 [26 Dec 1970] 59758/71 Heading C3C A porous nylon film having a uniform pore size distribution is made by adding a cyclic ether to a solution of a nylon in an alcohol, flowing the solution on to a flat support so as to form a film which is then dried. The nylon may be a copolymer of nylon 6, nylon 66 and nylon 610. The cyclic ether may be diethylene ether, tetramethylene oxide or glycolmethylene ether. The alcohol may be a C 1-4 aliphatic alcohol. The pores may be 0À7-1À3 microns in size. |
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