Solution of cellulose acylate dissolved in mixed solvent comprising ketone and ester
AssigneeFuji Photo Film Co., Ltd.
InventorsYasuo Mukunoki, Tsukasa Yamada
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Abstract
In a cellulose acylate solution, cellulose acylate is dissolved in an essentially non-chlorinated solvent. The essentially non-chlorinated solvent is a mixture of a ketone having a solubility parameter of 19 to 21 and an ester having a solubility parameter of 19 to 21. The solution further contains a releasing agent.
Claims18
A solution of cellulose acylate dissolved in an essentially non-chlorinated solvent, wherein the essentially non-chlorinated solvent is a mixture of a ketone and an ester, said ketone having a solubility parameter of 19 to 21, said ester having a solubility parameter of 19 to 21, and said solution further containing a releasing agent.
A process for preparation of cellulose acylate film, wherein a film is formed from a solution of cellulose acylate dissolved in an essentially non-chlorinated solvent, said essentially non-chlorinated solvent being a mixture of a ketone and an ester, said ketone having a solubility parameter of 19 to 21, said ester having a solubility parameter of 19 to 21, and said solution further containing a releasing agent.
Dependencies are inferred from the claim text.