EP0348831A3

Method and apparatus for producing moulded parts from curable plastic material

Abstract

The invention relates to a method for producing a relatively thin-walled and large-area molded part made of thermosetting, in particular laminated material, for example plastic, in which the material in a closed, at least one stretchable film (4,6) and a positive and / or Inserted negative mold (1) limited mold space (8) and is distributed in the same by vacuum and / or pressure uniformly over the mold surface. In order to provide a method in which it is ensured even at very low wall thicknesses that the material is well and evenly, but especially in the time available, distributed over the molding surface, so that in particular inserted fiber mats (5) are imbued properly, is in a provided with distributed grooves (3) positive and / or negative form at the same form-fitting film by pressure and / or vacuum at least partially drawn into the grooves and flow channels (7) are formed, the material is on the flow channels below Pressure and / or vacuum evenly filled in the mold space and distributed over the mold surface (2) and at the end of the distribution orShaping process, the retracted in the grooves carrier sheet is moved back by pressure and / or vacuum in the plane of the forming surface.

Term

Term ended

Projected expiry passed 23 June 2009, 17.3 years ago.

  1. Priority
  2. Filed
  3. Published
  4. Projected expiry
  5. Today

Every citation, both ways

Citations
DocumentRelationOfficeCategoryCited during
EP0017452A1CitesEuropean Patent Office (EPO)ASearch report
EP0322042A2CitesEuropean Patent Office (EPO)TSearch report
GB1024582ACitesUnited KingdomASearch report
FR1504274ACitesFranceASearch report
FR1527814ACitesFranceASearch report
DE2162174A1CitesGermanyASearch report
US2913036ACitesUnited States of AmericaASearch report
DE3206905A1CitesGermanyADSearch report
US4560523ACitesUnited States of AmericaASearch report
US4952135ACitesUnited States of AmericaTSearch report
WO8900495A1CitesWorld Intellectual Property Organization (WIPO)APSearch report
WO8909686A1CitesWorld Intellectual Property Organization (WIPO)TSearch report
PATENT ABSTRACTS OF JAPAN, Band 10, Nr. 18 (M-448)[2075], 24. Januar 1986; & JP-A-60 176 746 (HITACHI) 10-09-1985Non-patentSearch report