Patent ID: 11884814
Assignee: AJINOMOTO CO., INC.
Field: Macromolecular chemistry, polymers (Chemistry)
Classification: CPC C  H | IPC C  H

Claim 0:
1. A resin composition, comprising:
(A) at least one hollow particle formed of an organic polymer of at least one monomer comprising an aromatic vinyl unsaturated monomer;
(B) at least one epoxy resin;
(C) at least one curing agent which is at least one selected from an active ester curing agent, a phenol curing agent, a naphthol curing agent, a benzoxazine curing agent, a carbodiimide curing agent, an amine curing accelerator, an imidazole curing accelerator, and a metal curing accelerator;
(D) at least one silica; and
(E) at least one phosphorus type flame retardant,
wherein
said at least one hollow particle (A) has an average particle diameter of 0.2 μm to 8 μm:
said at least one hollow particle (A) is present in an amount of 3% to 50% by mass, based on 100% by mass of non-volatile components in the resin composition;
said at least one epoxy resin (B) is present in an amount of 10% to 40% by mass, based on 100% by mass of non-volatile components in the resin composition;
said at least one curing agent (C) is present in an amount of 0.01% to 30% by mass, based on 100% by mass of non-volatile components in the resin composition;
said at least one silica (D) is present in an amount of 60% or less by mass, based on 100% by mass of non-volatile components in the resin composition; and
said at least one phosphorus type flame retardant (E) is present in an amount of 0.1% to 10% by mass, based on 100% by mass of non-volatile components in the resin composition.