To obtain the subject acrylic composition having excellent viscosity stability, moldability and processability, compatibility of acrylic resin with a plasticizer, not causing bleeding even after overheating and melting, further having excellent low-temperature characteristics by making the composition include a specific compound as a plasticizer.
This composition comprises (A) a granular acrylic resin (e.g. a hompoplymer of methyl methacrylate monomer alone or a copolymer comprising methyl methacrylate as a main component) and (B) an aliphatic ether ester- based plasticizer of formula I (R1 and R2 are each a 1-20C alkyl; 1 is 2-20) (e.g. polyethylene glycol dibutanoic acid ester) or an aliphatic ether ester-based plasticizer of formula II (R3 and R4 are each a 1-20C alkyl; A is a 1-12C alkylene; m and n are each 1-10) (e.g. adipic acid dibutoxyethanol, etc.) and a glycol benzoic acid diester-based palsticizer of formula III (G is a 2-10C alkylene; p is 1-10) (e.g. ethylene glycol dibenzoic acid ester, etc.).
ARAI TERUO
JPH08225748A | 1996-09-03 | |||
JPH05148401A | 1993-06-15 | |||
JPH10231409A | 1998-09-02 | |||
JPH06145454A | 1994-05-24 | |||
JPH10195406A | 1998-07-28 |