| 摘要 |
PROBLEM TO BE SOLVED: To provide an acrylic syrup suitable for a variety of applications and having stable quality. SOLUTION: This acrylic syrup includes (A) 39-90 wt.% of a monomer which contains methyl methacrylate as a major component, (B) 60-9 wt.% of a polymer made from a monomer having a methyl methacrylate unit as a major component and having a weight average molecular weight of 20,000-500,000 when measured by GPC, (C) 0.0005-3.0 wt.% of 4-20C mercaptans, (D) 0.0001-0.3 wt.% of a partially esterified compound made from a 1-30C aliphatic carboxylic acid and glycerol, and/or a polymer made from a monomer which contains butadiene as a major component, and (E) 0.001-1.0 wt.% of a hindered phenol polymerization inhibitor (the total is 100 wt.%). The syrup has viscosity of 10-500,000 mPa s at 25°C. COPYRIGHT: (C)2010,JPO&INPIT
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