AROMATIC VINYL-BASED POLYMER CONTAINING HYDROXYL, PRODUCTION METHOD THEREOF, AND POLYSTYRENE RESIN FOAMING PARTICLE, PRELIMINARILY FOAMED PARTICLE AND FOAM MOLDING EACH INCLUDING THE SAME

• Main Authors: TERAMOTO KOJI, HIRATA AKIMICHI, TATSUNO SHINTARO, MARUYAMA TAKASHI, HIRATA IWAMINE
• Format: Patent
• Language: English
• Published: 12.07.2012
• 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

PROBLEM TO BE SOLVED: To provide: an aromatic vinyl-based copolymer which is excellent in compatibility with polystyrene resin and hydrophobic while having a hydroxyl in a side chain, and has a high glass transition temperature; a production method thereof; and a foam molding excellent in rigidity, impact resistance, heat insulating properties, surface appearance and dimension stability and antistatic properties, the foam molding, when added in a small amount, being uniformly dispersed in a polystyrene resin foaming particle or a polystyrene foam molding to give a high closed cell rate and a sufficient effect of preventing scattering of foaming agent thereto.SOLUTION: A copolymer having oxazoline group in a side chain is synthesized and hydrated with water in an organic solvent, whereby the aromatic vinyl-based copolymer which is hydrophilic and soluble to an organic solvent while having a hydroxyl in a side chain, and has a high glass transition temperature can be easily obtained. The polystyrene resin foam molding includes the polymer which has excellent compatibility to polystyrene resin.