Biomass plastic composition and molded article of the same

The biomass plastic composition, featuring plant-derived polyolefin resin, cellulose or starch fillers, and maleic anhydride modified polyolefin, addresses the issue of deformation in molded products by suppressing warping and maintaining strength, achieving a high biobase degree suitable for food equipment and packaging.

JP2025042972APending Publication Date: 2025-03-28ASAHI GRP HLDG LTD +1
2 Cites 0 Cited by

Patent Information

Application Number
JP2023150212
Authority / Receiving Office
JP · JP
Patent Type
Applications
Current Assignee / Owner
Filing Date
2023-09-15
Publication Date
2025-03-28

AI Technical Summary

Technical Problem

Plant-derived polyolefin resins, when used to replace petroleum-derived polypropylene resins, often result in deformation such as warping in molded products, particularly in thin flat plate shapes, due to differences in crystallization rates.

Method used

A biomass plastic composition containing 65% to 94.9% by mass of plant-derived polyolefin resin, with at least one of cellulose and starch as fillers, and 0.1 to 5% by mass of maleic anhydride modified polyolefin, which helps suppress deformation and maintain physical strength.

Benefits of technology

The composition effectively reduces deformation and maintains physical strength, allowing for the production of thin molded products with minimal warping and high biobase degree, suitable for food equipment and packaging.

✦ Generated by Eureka AI based on patent content.
Patent Text Reader

Abstract

To provide a biomass plastic composition having a high biomass degree which prevents deformation (distortion and warpage) when being molded into a molded article having a thin shape, and to relate to Goal 12 of SDGs.SOLUTION: There are provided a biomass plastic composition which contains 65 mass% to 90 mass% of a plant-derived polyolefin resin, contains at least one of cellulose and starch as a filler, contains 5 mass% to 30 mass% of the filler, and contains 0.1 to 5 mass% of maleic anhydride-modified polyolefin; and a container molded from the composition.SELECTED DRAWING: Figure 1
Need to check novelty before this filing date? Find Prior Art