Aromatic polycarbonate resin molding

Patent metadata

Field	Value
Publication number	US-9670316-B2
Application number	US-201415035288-A
Country	US
Kind code	B2
Filing date	Nov 10, 2014
Priority date	Nov 11, 2013
Publication date	Jun 6, 2017
Grant date	Jun 6, 2017

Abstract

Provided is an aromatic polycarbonate resin molded body, which is obtained by molding a resin molding material containing an aromatic polycarbonate resin (A), in which: the molded body has a thin-walled portion having a thickness of 0.5 mm or less; the molded body has an o-hydroxyacetophenone content of 1 ppm by mass or less and a nitrogen atom content of 15 ppm or less; and the molded body is free of an absorption maximum in a wavelength range of from 500 nm to 600 nm.

First claim

The invention claimed is:

1. An aromatic polycarbonate resin molded body, which is obtained by molding a resin molding material comprising an aromatic polycarbonate resin (A), wherein:
the molded body has a thin-walled portion having a thickness of 0.5 mm or less;
the molded body has an o-hydroxyacetophenone content of 1 ppm by mass or less and a nitrogen atom content of 15 ppm or less; and
the molded body is free of an absorption maximum in a wavelength range of from 500 nm to 600 nm.

2. The aromatic polycarbonate resin molded body according to claim 1 , wherein a length in a longitudinal direction of the molded body is 60 mm or more, and a thickness of a region accounting for at least 80% of the molded body is 0.7 mm or less.

3. The aromatic polycarbonate resin molded body according to claim 1 , wherein when a total signal intensity observed in a chemical shift region of from 1.5 ppm or more to 1.9 ppm or less at a time of measurement of a proton NMR spectrum is defined as 100, the molded body has a ratio of a total signal intensity observed in a chemical shift region of from 6.3 ppm or more to 6.7 ppm or less of 0.15 or less.

4. The aromatic polycarbonate resin molded body according to claim 1 , wherein the resin molding material further comprises a polyether compound (b1) having a polyoxyalkylene structure.

5. The aromatic polycarbonate resin molded body according to claim 1 , wherein the resin molding material further comprises an acid-generating compound (b2).

6. The aromatic polycarbonate resin molded body according to claim 5 , wherein the acid-generating compound (b2) comprises at least one selected from a boronic acid anhydride and a sulfonate.

7. The aromatic polycarbonate resin molded body according to claim 4 , wherein a content of the polyether compound (b1) is from 0.01 part by mass to 5 parts by mass with respect to 100 parts by mass of the aromatic polycarbonate resin (A).

8. The aromatic polycarbonate resin molded body according to claim 5 , wherein a content of the acid-generating compound (b2) is from 0.0001 part by mass to 0.5 part by mass with respect to 100 parts by mass of the aromatic polycarbonate resin (A).

9. The aromatic polycarbonate resin molded body according to claim 1 , wherein the aromatic polycarbonate resin (A) has a viscosity-average molecular weight (Mv) of from 10,000 to 50,000.

10. A light-guiding plate, comprising the aromatic polycarbonate resin molded body of claim 1 .

Assignees

• Idemitsu Kosan Co

Inventors

• Takimoto Masami
• Torii Takahiro
• Nakae Mitsugu

Classifications

• G02B6/10

  of the optical waveguide type (G02B6/02, G02B6/24 take precedence; devices or arrangements for the control of light by electric, magnetic, electro-magnetic or acoustic means G02F1/00; transferring the modulation of modulated light G02F2/00; optical logic elements G02F3/00; optical analogue/digital converters G02F7/00) · CPC title

• G02B6/00

  Light guides; Structural details of arrangements comprising light guides and other optical elements, e.g. couplings · CPC title

• C08K5/55

  Boron-containing compounds {(C08K5/0091 takes precedence)} · CPC title

• C08K5/42

  Sulfonic acids; Derivatives thereof · CPC title

• C08K3/38

  Boron-containing compounds · CPC title