Cellulose acetates and process for producing the cellulose acetates

The present invention provides a cellulose acetate satisfying at least one requirement selected from the following requirements (A), (B) and (C), provided that the case where (B) alone is satisfied is excluded.Requirement (A): Bright spotty matters in sizes of 20 mum or more are not more than 20 uni...

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Bibliographic Details
Main Authors SUZUKI SHINSUKE, TANIGUCHI HIROKI, NAKAI MICHIYO, OZAKI TORU, SASAI HIROFUMI
Format Patent
LanguageEnglish
Published 12.10.2004
Edition7
Subjects
CHEMISTRY
COMPOSITIONS BASED THEREON
DERIVATIVES THEREOF
METALLURGY
ORGANIC MACROMOLECULAR COMPOUNDS
POLYSACCHARIDES
THEIR PREPARATION OR CHEMICAL WORKING-UP
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Summary:The present invention provides a cellulose acetate satisfying at least one requirement selected from the following requirements (A), (B) and (C), provided that the case where (B) alone is satisfied is excluded.Requirement (A): Bright spotty matters in sizes of 20 mum or more are not more than 20 units/mm .Requirement (B): Blocking constant (K) is not more than 60.Requirement (C): The ratio (G'/G'') of storage modulus (G') to loss modulus (G'') at a measuring frequency of 0.016 Hz is not more than 0.2.
Bibliography:Application Number: US20020239628