Title:
【発明の名称】ポリテトラフルオロエチレンの一軸延伸成形物
Document Type and Number:
Japanese Patent JP2913062
Kind Code:
B2
Abstract:
For the production of a monoaxially stretched shaped article of polytetrafluoroethylene (PTFE), a pasty composition containing PTFE powder is worked continuously into a moulding, which is passed over a plurality of rollers or rolls, is heated and stretched, the moulding being heated before applying the stretching tension to a temperature of between 327 and 450 DEG C, preferably between 350 and 390 DEG C, is thereby sintered and then stretched.
This process allows the production of a monoaxially stretched shaped article of polytetrafluoroethylene (PTFE) having strength values in the direction of stretching of at least 500 N/mm<2>, preferably at least 700 N/mm<2>, and a density of between 1.80 and 2.30 g/cm<3>.
Inventors:
FURANTSU ZAASUHOOFUERU
RAINHARUTO RAINMYUURAA
KURISUCHAN HAA EFU SHUROSUNIKURU
AADARUBERUTO GEORUKU UIMERU
RAINHARUTO RAINMYUURAA
KURISUCHAN HAA EFU SHUROSUNIKURU
AADARUBERUTO GEORUKU UIMERU
Application Number:
JP9006190A
Publication Date:
June 28, 1999
Filing Date:
April 03, 1990
Export Citation:
Assignee:
RENTSUINGU AG
International Classes:
B29C55/04; B29C55/06; B29C55/18; C08J5/18; D01F6/12; D02G3/46; D02J1/22; B29K27/18; B29L7/00; B29L23/00; (IPC1-7): B29C55/06; D01F6/12; D02G3/46
Domestic Patent References:
| JP1192812A | ||||
| JP2127509A |
Other References:
【文献】米国特許4064214(US,A)
Attorney, Agent or Firm:
Yoshinori Hosoda