| 摘要 |
A tetrahydric phenol having a specific structure, such as alpha,alpha'-dimethyl-alpha,alpha,alpha',alpha'-tetrakis(4-hydroxyphenyl)-p-xylene, is used as the branching agent in producing a branched polycarbonate resin. The resin has a branching agent content (branching agent/(dihydric phenol+chain terminator+branching agent)x100) of from 0.01 to 0.4 mol %, and an intrinsic viscosity [lambd] of from 0.5 to 0.6, and is substantially free from crosslinks. The resin has such a reduced branching agent content and has good melt characteristics including high melt tension. It exhibits improved moldability in blow molding, etc., and gives good moldings especially having improved appearances and color tone.
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