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US 11,951,662 B2Granted
Foamed sheet, product, and method for producing foamed sheet
AssigneeRicoh Company, Ltd.
InventorsTaichi Nemoto, Shizuka Hashida, Yoshimitsu Kumai, Ryo Miyakoshi, Tomoharu Miki
Life of this patent
Estimating the term…
Abstract
A foamed sheet including: a polylactic acid; and a filler, wherein the foamed sheet has a compressive stress of 0.2 Mpa or less when the cushioning coefficient of the foamed sheet is 10 or less; and wherein the foamed sheet has a puncture strength of 2 N or more when the sheet thickness of the foamed sheet is 2 mm.
Claims20
A foamed sheet comprising:
- a polylactic acid;
- and
- a filler, wherein
- the foamed sheet when measured at a compressive stress of 0.2 MPa or less has a cushioning coefficient of 10 or less, and
- the foamed sheet measured at a thickness of 2 mm has a puncture strength of 2 N or more.
2 more elements
A product, comprising:
- a polylactic acid;
- and
- a filler, wherein
- the product when measured at a compressive stress of 0.2 MPa or less has a cushioning coefficient of 10 or less, and
- the product measured at a thickness of 2 mm has a puncture strength of 2 N or more.
2 more elements
Dependencies are inferred from the claim text.