Epoxy casting resin formulation
Assignee3M Innovative Properties Company
InventorsMathis A. Muth, Michael Petry, Adrian T. Jung
Life of this patent
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Abstract
The present disclosure provides a curable casting resin precursor, comprising (a) a first part (A) comprising: (a1) at least one epoxy resin; (b) a second part (B) comprising: (b1) at least one first amine-based epoxy curing agent; (b2) optionally, at least one second amine-based epoxy curing agent; (b3) at least one mineral filler; (b4) at least one phenolic lipid; wherein part (A) and/or part (B) comprise at least one triphenylmethane dye. The curable casting resin precursor is suited for encapsulating metal parts such as cable joints and the like.
Claims18
A curable casting resin precursor, comprising
- (a) a first part (A) comprising:
- (a1) at least one epoxy resin;
- (b) a second part (B) comprising:
- (b1) at least one first amine-based epoxy curing agent selected from a phenalkamine,
- the phenalkamine being a reaction product of cardanol, formaldehyde and an amine, and
- the phenalkamine being present in an amount of 10 to 45 wt % with respect to the weight of the second part (B);
- (b2) optionally, at least one second amine-based epoxy curing agent, if present, the at least one second amine-based epoxy curing agent being present in an amount of 1.5 to 10 wt % with respect to the weight of the second part (B);
- (b3) at least one mineral filler;
- (b4) at least one phenolic lipid;
- and
- at least one triphenylmethane dye,
- wherein the at least one triphenylmethane dye is within the first part (A) and/or the second part (B).
Dependencies are inferred from the claim text.