COLORED THERMOPLASTIC RESIN COMPOSITIONS FOR LASER WELDING, ANTHRAQUINONE COLORANTS THEREFOR AND MOLDED PRODUCT THEREFROM

• Main Authors: KOSHIDA, REIKO, HATASE, YOSHITERU, SUMI, HIROYUKI, HAYASHI, RYUICHI
• Format: Patent
• Language: English; French
• Published: 16.05.2002
• Edition: 7
• Subjects: ADHESIVES; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING; CHEMISTRY; CLADDING OR PLATING BY SOLDERING OR WELDING; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; DYES; INDEXING SCHEME ASSOCIATED WITH SUBCLASSES B29B, B29C OR B29D, RELATING TO MOULDING MATERIALS; LAKES; MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR; METALLURGY; MISCELLANEOUS APPLICATIONS OF MATERIALS; MISCELLANEOUS COMPOSITIONS; MORDANTS; NATURAL RESINS; ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES; ORGANIC MACROMOLECULAR COMPOUNDS; PAINTS; PERFORMING OPERATIONS; POLISHES; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDEDFOR; SHAPING OR JOINING OF PLASTICS; SOLDERING OR UNSOLDERING; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS; WELDING; WORKING BY LASER BEAM; WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE, IN GENERAL

Thermoplatic resin compositions suitable for laser welding are discribed in which black colorants are added. These colorants constitute amine salts of anthraquinone dyes. Additional dyes, coloring agents, and a variety of other materials may be added. These compositions demonstrate outstanding mechanica l and chemical properties once laser-welded.