Title:
POLYCARBONATE RESIN MOLDED ARTICLE FOR LASER MARKING
Document Type and Number:
Japanese Patent JP2009029845
Kind Code:
A
Abstract:
To provide a polycarbonate resin molded article for laser marking which is suppressed in the color change of a base material resin and can be produced at a low cost.
The polycarbonate resin molded article for the laser marking comprises carbon black and is regulated so that the thickness t (mm) and the amount c (ppm) of the added carbon black may satisfy the formula (1):-0.02t+0.06c-14t+33 (1).
Inventors:
MAEDA KENJI
SAHORI MIKIO
MARUMO TOMOFUYU
SAHORI MIKIO
MARUMO TOMOFUYU
Application Number:
JP2007192353A
Publication Date:
February 12, 2009
Filing Date:
July 24, 2007
Export Citation:
Assignee:
MGC FILSHEET CO LTD
MITSUBISHI GAS CHEMICAL CO
MITSUBISHI GAS CHEMICAL CO
International Classes:
C08J5/00; C08J7/04; C08K3/04; C08K7/18; C08L69/00
Attorney, Agent or Firm:
Takashi Nagai