A cellulose derivative having a long-chain organic group having 5 or more carbon atoms and a short-chain organic group having 4 or less carbon atoms which are introduced by use of hydroxy groups of a cellulose, and including a crystal structure derived from a cellulose derivative portion to which the short-chain organic group is linked, wherein an average number of hydroxy groups per glucose unit is of 1.0 or less.

A cellulose derivative having a long-chain organic group having 5 or more carbon atoms and a short-chain organic group having 4 or less carbon atoms which are introduced by use of hydroxy groups of a cellulose, and including a crystal structure derived from a cellulose derivative portion to which the short-chain organic group is linked, wherein an average number of hydroxy groups per glucose unit is of 1.0 or less.

Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.

Regioselectively substituted cellulose esters having a plurality of pivaloyl substituents and a plurality of aryl-acyl substituents are disclosed along with methods for making the same. Such cellulose esters may be suitable for use in films, such as +A optical films, and/or +C optical films. Optical films prepared employing such cellulose esters have a variety of commercial applications, such as, for example, as compensation films in liquid crystal displays and/or waveplates in creating circular polarized light used in 3-D technology.

The present invention provides a cellulose resin composition capable of forming a molded body having high-quality appearance and scratch resistance. A cellulose resin composition including a cellulose derivative, a lubricant, a plasticizer, and a colorant, wherein the cellulose derivative is an acylated cellulose obtained by substituting at least a part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, the content of the lubricant is in a range of 0.1 to 10% by mass, the plasticizer is an aromatic plasticizer, the content of the plasticizer is in a range of 0.1 to 100 parts by mass per 100 parts by mass of the cellulose derivative, and the content of the colorant is in a range of 0.01 to 10% by mass.

The present invention provides a cellulose resin composition capable of forming a molded body having high-quality appearance and scratch resistance. A cellulose resin composition including a cellulose derivative, a lubricant, a plasticizer, and a colorant, wherein the cellulose derivative is an acylated cellulose obtained by substituting at least a part of hydrogen atoms of hydroxy groups of a cellulose with an acyl group having 2 to 4 carbon atoms, the content of the lubricant is in a range of 0.1 to 10% by mass, the plasticizer is an aromatic plasticizer, the content of the plasticizer is in a range of 0.1 to 100 parts by mass per 100 parts by mass of the cellulose derivative, and the content of the colorant is in a range of 0.01 to 10% by mass.

Biodegradable drinking straws and methods of making biodegradable drinking straws. The drinking straws are thin and functional, having a tactile feel similar to conventional drinking straws, and are biodegradable in 12 months or less. The drinking straws use less material while maintaining high thickness uniformity, reducing cost and increasing structural integrity.

Biodegradable drinking straws and methods of making biodegradable drinking straws. The drinking straws are thin and functional, having a tactile feel similar to conventional drinking straws, and are biodegradable in 12 months or less. The drinking straws use less material while maintaining high thickness uniformity, reducing cost and increasing structural integrity.

Provided are a composite for cellulose fiber dispersion that can inexpensively and sufficiently disperse cellulose fibers, particularly nanocellulose, in a hydrophobic resin and a cellulose fiber composition containing the composite. A composite for cellulose fiber dispersion according to the present invention has a structure in which a vinyl polymer is grafted to a cellulose derivative. A cellulose fiber composition according to the present invention contains the composite and cellulose fibers and more specifically also contains an organic solvent, a resin precursor, or a resin.

A biodegradable resin particle, includes: a base particle containing a biodegradable resin; a first layer on a surface of the base particle, the first layer containing at least one cationic resin of a polyalkyleneimine, a polyallylamine and a polyvinylamine; and a second layer on the first layer, the second layer containing an anionic or nonionic hydrophobic compound.