Flame-retardant resin composition

摘要

The present invention provides a resin composition that simultaneously (1) supports high productivities, (2) is resistant to bleed out by the flame retardant present in the composition, (3) is resistant to migration of its components to another resin, (4) exhibits a high flame retardancy, and (5) exhibits high flexibility. The resin composition includes components (A) a polyphenylene ether, (B) a hydrogenated copolymer, (C) a styrene resin and/or olefin resin, and (D) a metal phosphinate, wherein the component (B) includes (B1) a polymer block principally comprising an aromatic vinyl monomer unit, and (B2) a hydrogenated copolymer block principally comprising an aromatic vinyl monomer unit and a conjugated diene monomer unit, and a content of the aromatic vinyl monomer unit in the (B2) is 20 to 95% by weight, and a content of the aromatic vinyl monomer unit in the (B) is 35 to 80% by weight.

主权项

1. A resin composition, comprising components (A), (B), (C), and (D), wherein, based on a total content of components (A), (B), (C), and (D),
a content () of the component (A), which is a polyphenylene ether, is 20% by weight or more but less than 21% by weight, a content () of the component (B), which is a hydrogenated copolymer principally comprising an aromatic vinyl monomer unit and a conjugated diene monomer unit, is 57% by weight or more but 59% by weight or less, a content () of the component (C), which is a styrene resin and/or olefin resin, is 0% by weight or more but 40% by weight or less, and a content () of the component (D), which is an aluminum phosphinate is 2% by weight or more but 15% by weight or less, and wherein the component (B) comprises (B1) a polymer block principally comprising an aromatic vinyl monomer unit, and (B2) a hydrogenated copolymer block principally comprising an aromatic vinyl monomer unit and a conjugated diene monomer unit; and a content of the aromatic vinyl monomer unit in the (B2) is 20% by weight or more and 95% by weight or less, and wherein the content of the aromatic vinyl monomer unit in the component (B) is 35% by weight or more and 80% by weight or less, and the ratio of the content () of the component (B) to the content () of the component (A) is from 2.71 to 2.95.