Laserbeschriftbare Harzzusammensetzung

• Main Authors: ITOH, HIROYUKI, YOKKAICHI-SHI, JP, MAWATARI, MASAAKI, SUZUKA-SHI, JP, KAWAKITA, MITSURU, YOKKAICHI-SHI, JP, ITO, YUKIKO, SHOWA-KU, NAGOYA-SHI, JP, MIYAMOTO, KAZUO, YOKKAICHI-SHI, JP, NAGAI, HISAO, KUWANA-SHI, JP
• Format: Patent
• Language: German
• Published: 21.01.1999
• Edition: 6
• Subjects: CHEMISTRY; COLOUR PRINTING; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; LINING MACHINES; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; PERFORMING OPERATIONS; PRINTING; PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; STAMPS; THEIR PREPARATION OR CHEMICAL WORKING-UP; TRANSPORTING; TYPEWRITERS; USE OF INORGANIC OR NON-MACROMOLECULAR ORGANIC SUBSTANCES ASCOMPOUNDING INGREDIENTS

A laser marking resin composition excellent in appearance of molded article and impact resistance which comprises: (A) 100 parts by weight of a rubber-reinforced vinyl resin consisting of: (A-1) 1 to 100% by weight of a rubber-reinforced resin having a grafting degree of 5 to 150% by weight obtained by polymerizing, in the presence of (a) 5 to 70% by weight of a rubbery polymer, (b) 95 to 30% by weight of at least one monomer selected from the group consisting of an aromatic vinyl compound, a vinyl cyanide compound, a (meth)acrylic acid ester, maleic anhydride and a maleimide compound, provided that (a) + (b) = 100% by weight, and (A-2) 99 to 0% by weight of a polymer obtained by polymerizing at least one monomer selected from the group consisting of an aromatic vinyl compound, a vinyl cyanide compound, a (meth)acrylic acid ester, maleic anhydride and a maleimide compound, provided that (A-1) + (A-2) = 100% by weight, the matrix resin in the component (A) having an intrinsic viscosity Ä eta Ü of 0.1 to 1.5 dl/g as measured in methyl ethyl ketone at 30 DEG C, and (B) 0.01 to 30 parts by weight of at least one compound selected from the group consisting of (B-1) titanium black, (B-2) black iron oxide, (B-3) yellow iron oxide and (B-4) carbon black.