Method for vacuum molding of large objects of synthetic resin
OwnerDag Thulininventor
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Abstract
A method for vacuum molding of large objects in a dismountable mold. The method includes the steps of introducing a monomer and a hardening agent to a cavity within a mold, with the cavity being under a vacuum. The monomer and hardening agent are introduced at least at one position in the cavity. The position being situated initially in the lower portion of the cavity. The position is successively moved upward at such a speed that the position is located just below the surface of the monomer and hardening agent as they are introduced into the cavity and their level rises within the cavity.
Claims15
A method for vacuum molding of large objects of synthetic resin in a dismountable mold, said method comprising the steps of:
- introducing a synthetic resin made up of a monomer and a hardening agent into a cavity within a dismountable mold, said cavity being under a vacuum, wherein said monomer and hardening agent are introduced into the cavity in at least at one position, said at least one position situated initially in a lower portion of said cavity;
- and
- successively moving said at least one position upward at such a speed that said at least one position is located just below a surface of said monomer and hardening agent as they are introduced into said cavity and their level rises within said cavity.
Dependencies are inferred from the claim text.