Resin composition
This invention provides a modified polyolefin resin composition that contains a large amount of an unsaturated carboxylic acid or an anhydride thereof, and that can inhibit an increase in fluidity after graft modification due to little influence of a reaction residue, wherein the resin composition when used as a compatibilizer for reinforced fiber plastics provides a molded article with excellent mechanical properties such as bending strength and impact resistance.
1. A resin composition comprising a reaction product obtained by reacting a propylene-based polymer (A), a diene-based elastomer (B), and an unsaturated carboxylic acid or anhydride thereof (C),
wherein
the content of the unsaturated carboxylic acid or anhydride thereof (C) is 2.0 mass % or more of the entire resin composition,
the melt mass flow rate of the resin composition measured at 190° C./2.16 kg as defined in JIS K 7210 is 2 g/10 min or more and 500 g/10 min or less,
the content of a reaction residue derived from the unsaturated carboxylic acid or anhydride thereof (C) is less than 2.0 mass % of the entire resin composition,
the content of a volatile hydrocarbon compound in the resin composition is 0.5 mass % or less of the entire resin composition, and
the content of the diene-based elastomer (B) is more than 10 mass % and 50 mass % or less relative to the total amount of the propylene-based polymer (A) and the diene-based elastomer (B).
2. The resin composition according to claim 1 , wherein the diene-based elastomer (B) has a number average molecular weight of 50,000 or more.
3. The resin composition according to claim 1 , further comprising a glass fiber.
4. The resin composition according to claim 2 , further comprising a glass fiber.
5. A compatibilizer comprising the resin composition according to claim 1 .
6. A compatibilizer for glass fiber-reinforced plastics, comprising the resin composition according to claim 1 .
7. A fiber-reinforced plastic comprising the compatibilizer according to claim 5 .
8. The resin composition according to claim 1 , wherein the content of a diene component in the diene-based elastomer (B) is 30 wt % or more and 100 wt % or less.