Composition for laser marking
First Claim
Patent Images
1. A resin composition having laser marking properties consisting essentially of a polyester thermoplastic resin, a sufficient amount of channel black carbon pigment for forming a dark background coloration whereby light colored markings are obtained on said dark background coloration in areas struck by laser light.
5 Assignments
0 Petitions
Accused Products
Abstract
A resin composition with laser marking properties comprises a polyester thermoplastic resin, a sufficient amount of channel black carbon pigment for forming a dark background coloration wherein said channel black carbon pigment decomposes in laser struck areas whereby light colored markings are obtained on the dark background.
38 Citations
13 Claims
- 1. A resin composition having laser marking properties consisting essentially of a polyester thermoplastic resin, a sufficient amount of channel black carbon pigment for forming a dark background coloration whereby light colored markings are obtained on said dark background coloration in areas struck by laser light.
- 10. A molder article having laser radiated marked surface portions, said article comprises a polyester thermoplastic resin, a sufficient amount of channel black carbon pigment for forming a dark background coloration whereby light colored markings are obtained on said dark background in areas struck by laser light.
Specification