Low-pore pellets and method for producing molded body
AssigneeAsahi Kasei Kabushiki Kaisha
InventorKazuhiro Tanimoto
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Abstract
Provided are a pellet including a thermoplastic resin and cellulose nanofibers that enables the production of a molded body which has a good appearance in which yellowing is suppressed, and a method for producing a molded body using the same. According to one aspect, there is provided a pellet including a thermoplastic resin and cellulose nanofibers, wherein the number of pore-containing pellets per 100 pellets is 10 or less. Further, according to another aspect, there is provided a method for producing a molded body, which includes a step of preparing the pellets, and a step of injection molding the pellets in a mold to obtain a molded body.
Claims14
Pellets of a resin composition comprising a thermoplastic resin and cellulose nanofibers, the pellets having a cylindrical or elliptic cylindrical shape, wherein:
- (i) the number of void-containing pellets per 100 pellets is 10 or less provided that when the number is other than 0, the void-containing pellets have a percentage of the void area with respect to the total area of a cylindrical cross-section of at least 1.3% to 4% or lower, wherein the void area is visible in the center of a transverse-cut surface of the cylindrical cross-section;
- (ii) the thermoplastic resin comprises a crystalline resin;
- and
- (iii) the cellulose nanofibers are hydrophobized cellulose nanofibers having a fiber diameter of 50 to 1000 nm and a fiber length/fiber diameter (L/D) ratio of 30 or greater.
Dependencies are inferred from the claim text.