Invention Grant
- Patent Title: Method and device for manufacturing sheet having fine shape transferred thereon
- Patent Title (中): 制造具有精细形状的片材的方法和装置
-
Application No.: US14455970Application Date: 2014-08-11
-
Publication No.: US09573300B2Publication Date: 2017-02-21
- Inventor: Yuma Hirai , Kiyoshi Minoura , Fumiyasu Nomura
- Applicant: TORAY INDUSTRIES, INC.
- Applicant Address: JP Tokyo
- Assignee: TORAY INDUSTRIES, INC.
- Current Assignee: TORAY INDUSTRIES, INC.
- Current Assignee Address: JP Tokyo
- Agency: Pillsbury Winthrop Shaw Pittman LLP
- Priority: JP2007-253727 20070928; JP2008-089929 20080331
- Main IPC: B29C59/02
- IPC: B29C59/02 ; B29C33/42 ; B29C43/00 ; B29C43/02 ; B29C43/58 ; B29C35/04 ; B29C37/00 ; B29C35/16 ; B29K101/12

Abstract:
A method for manufacturing a sheet having a fine shape transferred thereon, in which a sheet base made of a thermoplastic resin is placed between an imprint mold and an intermediate base and the sheet base is then pressed by a pair of pressing plates to imprint the fine shape of surface irregularity of the imprint mold to the sheet-like base. The sheet base is pressed such that, when pressing force of the pressing plates is maximum, an imprinting pressure difference is present in an imprinting surface of the imprint mold, a maximum imprinting pressure section is present in the imprinting surface, and a portion where the imprinting pressure is minimum is not present in the imprinting surface. The method achieves uniform and highly accurate shape transfer without trapping of air.
Public/Granted literature
- US20150028522A1 METHOD AND DEVICE FOR MANUFACTURING SHEET HAVING FINE SHAPE TRANSFERRED THEREON Public/Granted day:2015-01-29
Information query