Method of modifying the rate of temperature change of an epoxy resin composition in a resin container during a casting process
AssigneeSiemens Aktiengesellschaft
InventorMartin Jensen
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Abstract
A method for modifying a rate of temperature change of an epoxy resin composition in a resin container during a resin casting process is proposed. The resin composition has at least one epoxy monomer component and a curing agent. A passivation agent for the curing agent is added to the epoxy resin composition. A resin container arrangement for use in such a resin transfer moulding process, a composite product having an epoxy resin composition, and a use of an organic acid in an epoxy resin casting process as a passivation agent for modifying the rate of temperature change in a resin container containing an epoxy resin composition are proposed.
Claims19
A mixture comprising:
- an epoxy resin monomer component comprising epoxy monomers;
- a curing agent effective to react with the epoxy monomers via an exothermic polymerization reaction;
- and
- a passivation agent effective to modify a rate of temperature change of or inhibit an increase of temperature from the polymerization reaction.
A resin container arrangement comprising:
- a first vessel comprising a mixture of an epoxy resin monomer component comprising epoxy monomers and a curing agent;
- a second vessel comprising an amount of a passivation agent in fluid connection with the first vessel;
- and
- means for adding the passivation agent from the second vessel to the first vessel to modify a rate of temperature change of or inhibit an increase of temperature from a polymerization reaction in the first vessel between the epoxy monomers and the curing agent.
A composite product, comprising:
- a polymerized epoxy resin comprising a reaction product of an organic acid and an amine-based curing agent, wherein the reaction product comprises a salt of the organic acid and the amine-based curing agent, an amide product between the organic acid and the amine-based curing agent, or a mixture thereof.
Dependencies are inferred from the claim text.