Polymer mixture for Injection mouldings with a matt surface

• Main Authors: GOLCHERT URSULA, NAU STEFAN, HOESS WERNER, WICKER MICHAEL, SCHULTES KLAUS, ALBRECHT KLAUS, KEMPF PETER
• Format: Patent
• Language: Chinese; English
• Published: 09.02.2011
• Subjects: AFTER-TREATMENT NOT COVERED BY SUBCLASSES C08B, C08C, C08F,C08G; CHEMISTRY; COMPOSITIONS BASED THEREON; COMPOSITIONS OF MACROMOLECULAR COMPOUNDS; GENERAL PROCESSES OF COMPOUNDING; MACROMOLECULAR COMPOUNDS OBTAINED BY REACTIONS ONLY INVOLVINGCARBON-TO-CARBON UNSATURATED BONDS; METALLURGY; ORGANIC MACROMOLECULAR COMPOUNDS; THEIR PREPARATION OR CHEMICAL WORKING-UP; WORKING-UP

The invention relates to a polymer blend comprising: a) a polymer matrix, which consists of a (meth)acrylate (co)polymer or a blend of (meth)acrylate (co)polymers with a Vicat softening temperature VST (ISO 306-B50) of at least 104 DEG C and/or a (meth)acrylimide (co)polymer; b) an impact resistance modification agent, which is based on cross-linked poly(meth)acrylates and not covalently bonded to the polymer matrix a); c) between 1 and 15 wt. % plastic particles consisting of cross-linked polymers based on polymethylmethacrylates, polystyrenes and/or polysilicones. The polymer blend can be used to produce injection moulded parts with matte surfaces and Vicat softening temperatures VST (ISO 306-B50) of at least 90 DEG C.