Title:
【発明の名称】熱可塑性材料から作られたカップまたはカップ様のものの底部を結晶化し成形するための方法
Document Type and Number:
Japanese Patent JP2765713
Kind Code:
B2
Abstract:
Crystallizable mainly amorphous thermoplastic material is crystallized at a temperature exceeding the glass transition temperature of the material (13) by subjecting the material at the elevated temperature to compressive forces. By means of these the material thickness as a rule is reduced by at least 20 %, preferably by at least 40 %. In a device for the application of the procedure a plunger (20) and a mould (30) are moved to a minimum distance at which the thermoplastic material (13) located between the plunger and the mould part is subjected to compressive forces. The plunger and/or the mould part are provided with elements (29, 39) for the setting and maintaining of a temperature specified in advance of the surfaces (23, 33) with which the plunger and the mould part respectively abut against the thermoplastic material.
Inventors:
OORENSHURAAGERU URA
PEDERUSEN RUNE
ZOORENSEN EERINGU
PEDERUSEN RUNE
ZOORENSEN EERINGU
Application Number:
JP50276588A
Publication Date:
June 18, 1998
Filing Date:
March 15, 1988
Export Citation:
Assignee:
PEE ERU EMU AB
International Classes:
B29C35/02; B29C43/52; B29C49/64; B29C51/08; B29C51/30; B29C51/42; B29C57/00; B29C71/00; B29C71/02; B29K67/00; (IPC1-7): B29C51/30; B29C51/08; B29C51/42
Domestic Patent References:
| JP5724219A | ||||
| JP5798315A | ||||
| JP5941233A |
Other References:
【文献】米国特許4150079(US,A)
Attorney, Agent or Firm:
Yoshio Kawaguchi (2 outside)