Patent ID: 11953650
Assignee: DAICEL-EVONIK LTD.
Field: Other special machines (Mechanical engineering)
Classification: CPC G  B  A | IPC B  G

Claim 0:
1. A sheet having a thickness from 0.1 to 5 mm and comprising a plastic containing at least one resin selected from alicyclic polyamide resins, polycarbonate resins, cellulose acylate resins, and acrylic resins,
wherein the alicyclic polyamide resin contains a repeating unit represented by the below Formula,, where X is a single bond or a divalent hydrocarbon group, L is a divalent hydrocarbon group, R1 and R2 each is an alkyl group, and m and n each is an integer from 0 to 4, and
wherein a difference between a maximum value and a minimum value of retardation of the sheet is 3000 nm or less.