B - Operations – Transporting – 28 – B
Patent
B - Operations, Transporting
28
B
25/111
B28B 1/52 (2006.01) B22C 1/00 (2006.01) B22C 9/00 (2006.01) B28B 21/56 (2006.01) B32B 13/02 (2006.01)
Patent
CA 1282578
Abstract of the Disclosure The specification discloses a procedure for the production of moulds, patterns and tools made from plaster-based and cement-based materials. The pattern to be copied is coated with a release agent, and to this pattern is applied at least one base layer consisting of a binding agent. To this base layer is then applied by the wet-on-wet method a glass-fibre-reinforced moulding compound consisting of 95 to 0 wt.% alpha-calcium-sulfate-hemihydrate, 0 to 95 wt.% cement, 0.5 to 8 wt.% glass fibres and 0.5 to 4 wt.% of an adjuvant, relative to the dry weight, as well as water. The laminate thus formed is removed once it has set.
510279
Clubbs Neville H.
Faessle Fritz
Stadler Siegmund
Clubbs Neville H.
Faessle Fritz
Giulini Chemie Gmbh
Gowling Lafleur Henderson Llp
Stadler Siegmund
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