TITLE: FORM TOOL, IN PARTICULAR FOR PROCESSING PLASTIC AND SYNTHETIC RESIN
CONCRETE OR MORTAR MOLDING MATERIALS.
European Patent Application EP0241491 A1

ABSTRACT:
Abstract not available for EP0241491
Abstract of corresponding document: CH664525
The mold body of at least one casting mold (1, 2) of this form tool is
provided with a core (3, 4) of porous artificial resin concrete or
mortar which is permeable through to the mold surface (5, 6) and a
jacket (7, 8) which encloses the core on the outside in a gas tight
manner. The jacket has at least one passage (9, 10), which allows an
exchange of gas and/or liquid from and to the mold surface (5, 6). Form
tools with porous form bodies of this type are suitable for processing
gas and/or liquid-containing mold materials. Furthermore, they can be
used for processing without difficulty chemically hardenable mold
materials, for example polymers and polymer concretes or mortars by the
utilization of separating foils which are applied to the mold surfaces
by an underpressure in the mold body and which are held against this.

INVENTORS:
Hirzel, Theodor

APPLICATION NUMBER: EP19860905702
PUBLICATION DATE: 10/21/1987
FILING DATE: 09/29/1986

ASSIGNEE: Uniport, Theodor Hirzel (CH)
INTERNATIONAL CLASSES: B29C33/10; B28B1/26; B28B7/00; B28B7/06; B28B7/34; B28B13/06;
B29C33/38; B29C33/50; B29C33/56; B29C33/68; B29K103/04; B29K105/04;
(IPC1-7): B29C33/38; B29C33/50; B29C33/56; B28B7/34; B28B7/06
EUROPEAN CLASSES: B28B7/06; B28B7/34C; B29C33/38C; B29C33/50; B29C33/56

OTHER REFERENCES:
See references of WO 8702304A1