| abstract |
PURPOSE: To provide a molding material for sealing which can be easily identified after marking and can cope with a CO 2 gas laser and a YAG laser, containing carbon black and an org. dye. n CONSTITUTION: A resin such as a phenolic resin, an epoxy resin, etc. is mixed with carbon black, 0.01W10wt% org. dye having a decomposition initiating temp. of not lower than 300°C in differential thermal analysis (e.g., Nigrosine dye), a filler having a particle size of not larger than 200μ (e.g., fused silica), a parting agent, a coupling agent and optionally, a crosslinking agent, a curing agent, a curing accelerator, etc. The mixture is kneaded, crushed and, as needed, granulated. n COPYRIGHT: (C)1987,JPO&Japio |