Calender band stripping section and process for stripping calendered sheet
US4681723A · kind A · utility
21Cited by
6References
10Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Nov 1, 1985 |
| Grant date | Jul 21, 1987 |
| Priority date | — |
| Expiry date | Nov 1, 2005 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB29L2007/008
- WIPO fieldOther special machines
- WIPO sectorMechanical engineering
Abstract
An improved apparatus and method for calendering of thermoplastic material are disclosed. An endless belt is interposed between the calendered material and the last calender roll which belt conveys the thermoplastic calendered sheet around the last calender roll and toward the stripper roll. The thermoplastic calendered sheet does not come into contact with the final calender roll surface. After cooling the film should strip easily off the endless belt. Consequently, problems originating in sheet adhesion to the final calender roll will be reduced if not eliminated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.