A cellulose ester composition is provided comprising at least one cellulose ester and at least one additive selected from the group consisting of a compatibilizer, and a plasticizer. Processes for producing the cellulose ester composition are also provided. In another embodiment, a cellulose ester/elastomer composition is provided comprising at least one elastomer, at least one cellulose ester; and at least one additive; wherein the additive is at least one selected from the group consisting of a compatibilizer and a plasticizer. Processes for producing the cellulose ester/elastomer composition is also provided as well as articles comprising the cellulose ester/elastomer composition.

Cellulose ester/elastomer compositions

A cellulose ester film with Rth>0 nm comprising a cellulose ester having a total degree of substitution of at least 23 and a polymer X with a weight-average molecular weight of 500-100000 satisfying 30%≦A≦100%, wherein A indicates the polymerization ratio of a monomer whose homopolymer has a negative birefringence, is excellent in humidity stability and wet heat durability

Cellulose ester film, polarizer and liquid crystal display device

Disclosed are an optical film having reduced process troubles during production; an optical film which hardly causes light leakage, while having high contrast; a polarizing plate; and a liquid crystal display device. Specifically disclosed is an optical film having at least an acrylic resin-containing film and a cellulose ester film, which is characterized in that the acrylic resin-containing film contains at least one acrylic resin (A) and at least one cellulose ester resin (B).

Optical film, method for producing optical film, polarizing plate and liquid crystal display device

Disclosed is a cellulose ester film which is suppressed in volatilization of components during film formation, while having high surface flatness, high durability after saponification and good adhesion to a polarizer. Also disclosed is a method for producing such a cellulose ester film by melt forming. Further disclosed are a polarizing plate having high light resistance and high durability, and a liquid crystal display having high image quality. Specifically disclosed is a cellulose ester film characterized by containing a cellulose ester, a compound represented by the general formula (1) below, and a compound represented by the general formula (2) below.

Cellulose ester film, method for producing cellulose ester film, polarizing plate using the same, and liquid crystal display

To provide a cellulose ester composition having good thermoplasticity. The cellulose ester composition including: (A) a cellulose ester and (B) a plasticizer, wherein the plasticizer of the component (B) includes at least one kind selected from adipic acid esters respectively represented by the following formulae (I), (II) and (III).

Cellulose ester composition

A process for producing an optical film, characterized by using a cellulose ester, a sugar ester compound obtained by esterifying a sugar compound made up of one to twelve structures of at least one kind selected among furanose structures and pyranose structures, and an acrylic polymer to form the film by the melt casting method. In forming a cellulose ester film from a melt in the process, the cellulose ester has satisfactory leveling properties when extruded, in the state of having a high melt viscosity, from a die and cast on a cooling drum. Thus, a cellulose ester film can be obtained which changes little in retardation with fluctuations in humidity.

Process for producing optical film, cellulose ester film, polarizer, and liquid-crystal display

A method for producing an optical film is disclosed. A cellulose ester, a sugar ester prepared by esterification of a sugar compound formed by 1 to 12 of structures selected by a furanose structure and a pyranose structure and an acryl type polymer having a weight average molecular weight of from 5,000 to 30,000 are subjected to melt-casting.

Kenzo Kasahara

Papers

Process for producing optical film, cellulose ester film, polarizer, and liquid-crystal display

Method for producing optical film