Card-use resin composition having laser-marking coloring properties and card made therewith
US10906282B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jun 12, 2018 |
| Grant date | Feb 2, 2021 |
| Priority date | — |
| Expiry date | Jun 12, 2038 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC08J2469/00
- WIPO fieldOther consumer goods
- WIPO sectorOther fields
Abstract
The present invention realizes a card-use resin composition that exhibits beautiful colors and that has high laser-marking coloring properties, a card-use resin sheet formed with the card-use resin composition, and a card. The above problem has been solved by a card-use resin composition containing a laser coloring agent and a thermoplastic resin, wherein the thermoplastic resin contains a polycarbonate resin, and the laser coloring agent contains at least one type of black pigment, the primary particle diameter of the black pigment being 40 to 80 nm, and the amount of the black pigment with respect to the entire mass of the card-use resin composition being 20 to 40 mass ppm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.