FLUORINE-BASED (METH)ACRYLIC RESIN, FLUORINE-BASED RESIN COMPOSITION THEREOF, FLUORINE-BASED RESIN FILM THEREOF, AND FLUORINE-BASED RESIN-LAMINATED ACRYLIC RESIN FILM

摘要

PROBLEM TO BE SOLVED: To provide a fluorine-based (meth)acrylic resin single-layered or multilayered film, obtained by improving thermal degradation resistance of a fluorine-based (meth)acrylic resin, providing beautiful appearance of the film, usable for an automotive interior member, and having a balance of various characteristics of the film such as chemical resistance. SOLUTION: The fluorine-based (meth)acrylic resin (A) has <20% of a melt viscosity-decreasing rate represented by the following equation between the melt viscosity at 1 h of the retention time and the melt viscosity at 10 min of the retention time, measured under a condition conforming to JIS K7199 (die temperature: 230°C, shear rate: 24 s-1, capillary die diameter: 1 mm, and retention time: 1 h): (melt viscosity-decreasing rate)=[(melt viscosity at 10 min of retention time)-(melt viscosity at 1 h of retention time)]/(melt viscosity at 10 min of retention time)×100 (%). COPYRIGHT: (C)2011,JPO&INPIT