公开(公告)号：CA1172154A

公开(公告)日：1984-08-07

申请号：CA382162

申请日：1981-07-21

Applicant: IBM

Inventor： FROSCH ALBERT ,  HINKEL HOLGER ,  KRAUS GEORG ,  KUNZEL ULRICH ,  ROGALLA DIETRICH ,  SCHNEIDER JOCHEN

IPC: B32B5/28 ,  B32B5/22 ,  B32B33/00 ,  G11B5/62 ,  G11B5/73 ,  G11B5/733 ,  G11B5/82 ,  B32B5/26

Abstract: The invention provides a magentic disk substrate of plastic containing fibres in which the substrate is pressed in the form of a laminate from a plurality of thin lamellae of fibre reinforced plastic, which are arranged on top of each other at equal angular spacing.