Method for producing magnetic sheet
A method for producing a magnetic sheet wherein a magnetic sheet composition is applied onto a substrate. The magnetic sheet composition contains: a binder; magnetic powder; and a curing agent, wherein the binder contains a thermosetting organic resin, and the curing agent contains a sulfonium borate complex expressed by General Formula 1: where R 1 is an aralkyl group, R 2 is a lower alkyl group, X is a halogen atom, and n is an integer of 0 to 3.
1. A method for producing a magnetic sheet comprising:
applying a magnetic sheet composition onto a substrate;
drying the magnetic sheet composition applied onto the substrate;
thermosetting the dried magnetic sheet composition,
wherein the magnetic sheet composition comprises:
a binder;
magnetic powder; and
a curing agent,
wherein the binder contains a thermosettinq organic resin, and the curing agent contains a sulfonium borate complex expressed by General Formula 1:
where R 1 is an o-methyl benzyl group or a (1-naphthyl)methyl group, R 2 is a methyl group, a ethyl group, a propyl group, or a butyl group, X is a halogen atom, and n is an integer of 0 to 3; and
stacking a convex-concave forming layer and a pattern transferring layer on a surface of a magnetic layer, which is formed by thermosetting the magnetic sheet composition, in this order from the side of the magnetic layer so as to form a stacked body; and
hot-pressing the stacked body so as to transfer a surface configuration of the pattern transferring layer to surfaces of the convex-concave forming layer and the magnetic layer, as well as bonding the convex-concave forming layer and the magnetic layer together.
2. A method for producing a magnetic sheet, comprising:
applying a magnetic sheet composition onto a substrate;
drying the magnetic sheet composition applied onto the substrate; and
thermosetting the dried magnetic sheet composition,
wherein the magnetic sheet composition comprises:
a binder;
magnetic powder; and
a curing agent,
wherein the binder contains a thermosetting organic resin, and the curing agent contains a sulfonium borate complex expressed by General Formula 1:
where R 1 is an aralkyl group, R 2 is a lower alkyl group, X is a halogen atom, and n is an integer of 0 to 3,
said method further comprising
stacking a convex-concave forming layer and a pattern transferring layer on a surface of a magnetic layer, which is formed by thermosetting the magnetic sheet composition, in this order from the side of the magnetic layer so as to form a stacked body; and
hot-pressing the stacked body so as to transfer a surface configuration of the pattern transferring layer to surfaces of the convex-concave forming layer and the magnetic layer, as well as bonding the convex-concave forming layer and the magnetic layer together.