Title:
MANUFACTURING PROCESS OF POLYTETRAFLUOROETHYLENE SHEET AND MANUFACTURING PROCESS OF SEAL TAPE MADE OF POLYTETRAFLUOROETHYLENE
Document Type and Number:
Japanese Patent JP2008114582
Kind Code:
A
Abstract:
To provide a manufacturing process of a polytetrafluoroethylene sheet (PTFE) and a manufacturing process of a seal tape made of PTFE which exhibit a better productivity than the conventional processes and reduce the manufacturing costs.
The manufacturing processes comprise (i) a step to form a PTFE-containing solid material including a surfactant and water by imposing force on a PTFE particle dispersion containing PTFE particles, a surfactant and water being a dispersion medium to bring the particles into the vicinity of or contact with each other, (ii) a step to deform the solid into a sheet and (iii) a step to reduce the amount of the water contained in the solid deformed into the sheet.
Inventors:
WANO TAKASHI
NAGAI YOZO
HORIE YURI
TANAKA ATSUSHI
TABEI OSAMU
NAGAI YOZO
HORIE YURI
TANAKA ATSUSHI
TABEI OSAMU
Application Number:
JP2007120245A
Publication Date:
May 22, 2008
Filing Date:
April 27, 2007
Export Citation:
Assignee:
NITTO DENKO CORP
International Classes:
B29C67/04; B29C41/08; C08J5/18; C09K3/10; B29K27/18
Domestic Patent References:
| JPH07290551A | 1995-11-07 | |||
| JPH06234865A | 1994-08-23 | |||
| JPS4812052B1 | 1973-04-18 | |||
| JP2002370279A | 2002-12-24 | |||
| JPH06234865A | 1994-08-23 | |||
| JPH07290551A | 1995-11-07 | |||
| JP2002370279A | 2002-12-24 | |||
| JPS4812052B1 | 1973-04-18 |
Attorney, Agent or Firm:
Koichi Kamata