Method of Making Chemically Resistant Moulds and Tools
OwnerDuncan Howlandinventor
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Abstract
A method of producing a tool or mould is claimed which comprises (A) application of a seamless modelling paste comprising at least one resin system (a) and at least one hardener system (b) onto a substrate to form a continuous film of curable material (B) curing the seamless modelling paste. The composition used comprises a resin system (a) comprising an epoxy resin (a1) having an average epoxy functionality above 2 and the hardener system (b) comprising an amine compound (b1) having an average amine functionality above 2.
Claims20
A method of producing a tool or mould comprising:
- (A) application of a seamless modelling paste comprising at least one resin system (a) and at least one hardener (b) onto a substrate to form a continuous film of curable material
- (B) curing the seamless modelling paste and
- (C) machining of the cured seamless modelling paste to form the tool or mould
- characterized in that the resin system (a) comprises an epoxy resin (a1) having an average epoxy functionality above 2 and the hardener system (b) comprises an amine compound (b1) having an average amine functionality above 2.
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A curable seamless modelling paste comprising
- (a) a resin system comprising an epoxy resin (a1) having an average epoxy functionality above 2, and
- (b) a hardener system comprising an amine compound (b1) having an average amine functionality above 2.
Dependencies are inferred from the claim text.