Curable composition for hard disk drive
AssigneeKyoritsu Chemical & Co., Ltd.
InventorYuta Hara
Life of this patent
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Abstract
The present invention provides a curable composition for a hard disk drive, the composition comprising: a compound (component A1) having an ethylenically unsaturated group and having no epoxy group and a compound (component A2) having an ethylenically unsaturated group and an epoxy group, or the component A2 and a compound (component A3) having an epoxy group and having no ethylenically unsaturated group, or the component A1 and the component A3, or the component A1, the component A2, and the component A3, or the component A2; a photo-radical polymerization initiator (component B); and a compound (component C) capable of causing the epoxy group to undergo polymerization, and a method for producing a hard disk drive, which comprises the step of bonding a part to a magnetic head portion using the composition.
Claims20
A curable composition for a hard disk drive, the composition comprising:
- a compound (component A1) having an ethylenically unsaturated group and having no epoxy group and a compound (component A2) having an ethylenically unsaturated group and an epoxy group, or the component A2 and a compound (component A3) having an epoxy group and having no ethylenically unsaturated group, or the component A1 and the component A3, or the component A1, the component A2, and the component A3, or the component A2;
- a photo-radical polymerization initiator (component B);
- a compound (component C) capable of causing the epoxy group to undergo polymerization, the component C being an amine adduct;
- an imidazole compound and/or a tertiary amine compound (component D);
- and
- a thermo-radical polymerization initiator (component E) selected from a ketone peroxide, a peroxyketal, a peroxyester, or a peroxydicarbonate.
A curable composition for a hard disk drive, the composition comprising:
- a compound (component A1) having an ethylenically unsaturated group and having no epoxy group and a compound (component AZ) having an ethylenically unsaturated group and an epoxy group, or the component A2 and a compound (component A3) having an epoxy group and having no ethylenically unsaturated group, or the component A1 and the component A3, or the component A1, the component A2, and the component A3, or the component A2;
- a photo-radical polymerization initiator (component B);
- a compound (component C) capable of causing the epoxy group to undergo polymerization, the component C being an amine adduct;
- an imidazole compound (component D);
- and
- a thereto-radical polymerization initiator (component E) selected from a ketone peroxide, a peroxyketal, a peroxyester, or a peroxydicarbonate.
Dependencies are inferred from the claim text.