The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.

[PROBLEMS] To easily provide gels and porous bodies having high strength.

[SOLVING MEANS] A method of producing a porous body according to the present invention is characterized by having a first step of dissolving fibrous polymers each having a reactive functional group in a solution, a second step of freezing the solution in which the fibrous polymers are dissolved, and a third step of cross-linking fibrous polymers to each other by adding a predetermined amount of cross-linking agent to the frozen solution.

The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.

The disclosure relates to thermally expandable microspheres comprising a polymeric shell surrounding a blowing agent-containing hollow core, the polymer shell comprising a carboxylate-functionalised cellulose having a glass transition temperature (Tg) of at least about 125° C. The disclosure also relates to a method for preparing such thermally expandable microspheres, comprising mixing an aqueous phase that optionally comprises an emulsifier with an organic phase that comprises an organic solvent, a blowing agent and a carboxylate-functionalised cellulose having a Tg of at about least 125° C., to form a microsphere dispersion.

The invention concerns a film based on a binary polymer composition having at least a first polymer and a second polymer. The film is oriented by extruding and stretching the film in at least the machine direction. The glass-transition temperature (Tg) of the first polymer is greater than the orientation temperature and the glass-transition temperature (Tg) of the second polymer is lower than the orientation temperature. Furthermore, a method and use related thereto are described.

The present invention provides a method for the production of chemically derivatized nanocellulose, comprising the step of a. contacting a precursor cellulosic material with a chemically derivatizing composition to form a liquid reaction mixture, and b. chemically reacting the formed liquid reaction mixture, and c. subjecting the formed liquid reaction mixture to microfluidisation, wherein the steps b. and c. are carried out simultaneously.

A method of making an article of manufacture is disclosed, wherein the article includes a polymer with recycle content. In one or more embodiments, the polymer with recycle content is selected from the group consisting of (i) a recycle content polyester; and (ii) a recycle content cellulose ester.

The present application discloses regioselectively substituted cellulose esters, films made from the regioselectively substituted cellulose esters and methods for making the same. The regioselectively substituted cellulose esters are synthesized using trifluoroacetic anhydride and cellulose with various acyl donors or acyl donor precursors.

Provided is an optical laminate capable of suppressing deterioration of visibility in a high-temperature environment. The optical laminate comprises a layer comprising a metal oxide on a plastic film, wherein the emissivity of the optical laminate for light with a wavelength range of 2000 nm or more and 22000 nm or less is 0.27 or more and 0.75 or less as measured from the side of the layer comprising a metal oxide with respect to the plastic film.

Disclosed is a cellulose ester-based composition, The cellulose ester-based composition of the present invention includes comprising at least 51% by weight cellulose ester based on the total weight of polymer in the composition and polyvinyl acetal. Related calendered articles and flooring articles are also described.