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EP0206100A2 Expired / Lapsed EP ⏱️ 0.0 years remaining

Method and apparatus for making moulded articles of solid or microcellular plastic material, in particular a free-flowing reactive mixture forming polyurethane of at least two free-flowing reaction components

Assignee: Bayer AG
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Filing: 1986-06-10
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Granted: —
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Expires: 2006-06-10
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Abstract

Abstract Translated from German Um bei Formwerkzeugen (18) zum Herstellen von Formteilen aus massivem oder mikrozellularem Kunststoff aus einem fließfähigen Reaktionsgemisch aus mindestens zwei fließfähigen Reaktionskomponenten den zum Vermeiden von Oberflächenfehlern erforderlichen Nachdruck günstig aufbringen zu können, nähert man die in einer Schließeinheit (1) angeordneten und einen geschlossenen Formhohlraum (18) bildenden Formwerkzeughälften (15, 16) bis auf 5 mm der endgültigen Schließstellung vor dem Einfüllvorgang an, erhält diese Position während des Einfüllvorganges aufrecht und bringt die Formwerkzeughälften (15,16) erst nach Beendigung des Einfüllvorganges in die endgültige Schließstellung. In order to be able to apply the pressure required to avoid surface defects in molds (18) for the production of moldings from solid or microcellular plastic from a flowable reaction mixture of at least two flowable reaction components, the closed mold cavity arranged in a clamping unit (1) is approached (18) forming mold halves (15, 16) up to 5 mm of the final closed position before the filling process, maintains this position during the filling process and brings the mold halves (15, 16) into the final closed position only after the filling process has ended.

Inventors

  • 👤 Heinrich Boden
  • 👤 Walter Dipl.-Ing. Schneider

Bibliographic Details

Application Number —
Jurisdiction EP
Data Source google_patents
Last Synchronized 2026-10-25 04:01
CPC Classifications
B; B29; B29C; B29C67/00; B29C67/24; B29C67/246; B29C44/00; B29C44/02; B29C44/10; B29C45/00; B29C45/17; B29C45/46; B29C45/56; B29C45/561; B29C2045/5615; Y; Y10; Y10S; Y10S264/00; Y10S264/83

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