Modifier for resin and resin composition using the same and formed article

Abstract

A modifier for resin has an average particle size of 20 μm or more, wherein particles having an average particle size of 10 μm or less account for less than 30% by mass of the modifier, and particles having an average particle size of 10 μm or less account for 30% by mass or more of the modifier after irradiating the modifier with ultrasonic wave of 40 W for 5 minutes. Also a resin composition comprises 1 to 40% by mass of the modifier for resin and 99 to 60% by mass (the total amount of both components is 100% by mass) of a thermoplastic resin or a curable resin, and a molded article is produced by molding the same.

1 . A modifier for resin having an average particle size of 20 μm or more, wherein particles having an average particle size of 10 μm or less account for less than 30% by mass of the modifier, and particles having an average particle size of 10 μm or less account for 30% by mass or more of the modifier after irradiating the modifier with ultrasonic wave of 40 W for 5 minutes.  
   
   
       2 . The modifier for resin according to  claim 1 , which is made of an acrylic graft copolymer.  
   
   
       3 . A resin composition comprising 1 to 40% by mass of the modifier for resin according to  claim 1  and 99 to 60% by mass (the total amount of both components is 100% by mass) of a thermoplastic resin or a curable resin.  
   
   
       4 . A molded article which is produced by molding the resin composition according to  claim 3.