Biodegradable resin composition and molded product
AssigneeTbm Co., Ltd.
InventorsHiroshi Nakamura, Eiji Mizuno, Gouki Sasakawa
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Abstract
Provided is a biodegradable resin composition that exhibits excellent biodegradability even in a molded product having a large thickness, has excellent mechanical properties, and is economically advantageous, and a molded product using the same. The molded product is provided using an inorganic substance powder-containing biodegradable resin composition including: a biodegradable resin and an inorganic substance powder in a mass ratio of 10:90 to 70:30, in which the biodegradable resin is a cellulose acetate-based resin and the inorganic substance powder is heavy calcium carbonate.
Claims20
An inorganic substance powder-containing biodegradable resin composition comprising:
- a biodegradable resin and an inorganic substance powder in a mass ratio of 10:90 to 70:30, wherein the biodegradable resin is a cellulose acetate-based resin, and the inorganic substance powder is heavy calcium carbonate, which is a product produced by crushing and classifying natural calcium carbonate, having a roundness of 0.50 to 0.95, and the inorganic substance powder-containing biodegradable resin composition does not contain a thermoplastic resin other than the cellulose acetate-based resin,
- wherein the inorganic substance powder-containing biodegradable resin composition does not comprise a plasticizer.
An inorganic substance powder-containing biodegradable resin composition comprising:
- a biodegradable resin and an inorganic substance powder in a mass ratio of 10:90 to 70:30, wherein the biodegradable resin is a cellulose acetate-based resin, and the inorganic substance powder is heavy calcium carbonate, which is a product produced by crushing and classifying natural calcium carbonate, having a roundness of 0.50 to 0.95, and
- the inorganic substance powder-containing biodegradable resin composition does not contain polylactic acid and has a tensile strength of 38.9 to 43.8 MPa,
- wherein the inorganic substance powder-containing biodegradable resin composition does not comprise a plasticizer.
Dependencies are inferred from the claim text.