Invention Grant
- Patent Title: Crumple-resistant security sheet, a method of manufacturing such a sheet, and a security document including such a sheet
-
Application No.: US12599219Application Date: 2008-05-28
-
Publication No.: US10023998B2Publication Date: 2018-07-17
- Inventor: Henri Rosset
- Applicant: Henri Rosset
- Applicant Address: FR Paris
- Assignee: ARIOWIGGINS SECURITY
- Current Assignee: ARIOWIGGINS SECURITY
- Current Assignee Address: FR Paris
- Agency: Oliff PLC
- Priority: FR0755382 20070531
- International Application: PCT/FR2008/050924 WO 20080528
- International Announcement: WO2008/152299 WO 20081218
- Main IPC: D21H11/00
- IPC: D21H11/00 ; D21H13/00 ; D21H15/00 ; D21H17/00 ; D21H19/00 ; D21H21/00 ; D21H23/00 ; D21H25/00 ; D21H27/00 ; B44F11/00 ; D21F11/00 ; B42D1/00 ; B42D19/00 ; B42D15/00 ; D21H21/40 ; D21H17/42 ; D21H17/43 ; D21H17/44 ; D21H21/18 ; D21H21/20
Abstract:
The present invention relates to a crumple-resistant security sheet comprising fibers; an anionic polymer in a proportion lying in the range 5% to 45% by dry weight relative to the total dry weight of the fibers, and presenting a glass transition temperature greater than 40° C.; and a main cationic flocculation agent in a quantity lying in the range 1% to 5% by dry weight relative to the total dry weight of the fibers.
Public/Granted literature
Information query
