Patent ID: 8293147
Filing Date: 2012-10-23
Classification: B41M,C08K

Abstract:
1. A laser-writable molding material consisting essentially of: Component A) in the amount of 80 to 99.5 percent, by weight of molding material, of at least one polymer material having siloxane crosslinking units selected from the group consisting of silicones, silicone rubbers, silicone resins, silicone-modified thermosetting materials, silicone-modified crosslinked elastomers, siloxane crosslinking units-bearing copolymers, and siloxane crosslinking units-bearing mixed polymers, and Component B) in the amount of 0.01 to 10 percent, by weight of molding material, consisting essentially of a particulate salt-like compound or a mixture of particulate salt-like compounds, which under the influence of laser light leads to a color change in component A), wherein the salt-like compound or mixture of salt-like compounds of component B) has a mean particle size (D50) of less than 50 μm, and Component C) being an additive selected from the group consisting of: stabilizers for improving the resistance to the action of light, UV radiation and weathering, stabilizers for improving thermal and thermo-oxidative resistance, stabilizers for improving hydrolytic resistance, stabilizers for improving acidolytic resistance, lubricants, mold removal aids, coloring additives, crystallization-regulating substances and nucleation agents, flame-proofing agents, impact toughness modifiers, fillers and plasticizers.