Resin composition and process for producing resin molding
A polyester resin component having crystallization improved and including a cyclic compound shown by a below-described formula and polyester capable of having a crystal structure: In the formula, each of ring A and a ring B is a benzene ring, and the hydrogen bonded to the benzene rings be substituted with other groups. Additionally, Y is —CONH— or —NHCO— and X is a heterocyclic group or a condensed heterocyclic group including one or more NH or CO.
1. A resin component comprising:
a nucleus agent represented by a formula 1 below; and
formula 1
a polyester having at least a partially crystallized structure, wherein,
the nucleus agent is effective to accelerate the crystallization of the polyester, and
in the formula 1, (a) each of a ring A and a ring B is a benzene ring, (b) a hydrogen bonded to the benzene ring may optionally be substituted with other groups, (c) Y is —CONH— or —NHCO—, and (d) X is a heterocyclic group or a condensed heterocyclic group including one or more NH or CO.
2. The resin component according to claim 1 , wherein the nucleus agent includes a benzimidazolone structure.
3. The resin component according to claim 1 , wherein the nucleus agent is the a formula below
where in the formula, ring C is a benzene ring, and
hydrogen bonded to the benzene ring may optionally be substituted with other another group.
4. The resin component according to claim 1 , wherein the nucleus agent is C. I. Pigment Violet 32, C. I. Pigment Red 185, or C. I. Pigment Red 208.
5. The resin component according to claim 1 , wherein the nucleus agent is a particle having a particle diameter of exceeding 0 and not larger than 10 μm.
6. The resin component according to claim 1 , wherein the polyester having at least a partially crystallized structure is a biodegradable polyester.
7. The resin component according to claim 6 , wherein the biodegradable polyester is polylactic acid.
8. The resin component according to claim 1 , wherein the resin component forms a molded body.
9. The resin component according to claim 1 , wherein the ratio of the nucleus agent is within a range from 0.001 to 10 parts by mass relative to the polyester having at least a partially crystallized structure of 100 parts by mass that is capable of having the crystal structure.
10. The resin component according to claim 1 , wherein an inorganic filler is further added to the resin component.
11. The resin component according to claim 10 , wherein the inorganic filler is talc.
12. The resin component according to claim 10 , wherein the ratio of the inorganic filler is within a range from 1 to 50 parts by mass relative to the resin component of 100 parts by mass.
13. The resin component according to claim 1 , wherein a hydrolysis inhibitor is further included.
14. The resin component according to claim 13 , wherein the hydrolysis inhibitor includes a compound having a carbodiimide group.
15. The resin component according to claim 1 , wherein a crystallization rate is within a range from 40 to 100%.
16. The resin component according to claim 1 , wherein a crystallization time is within a range from exceeding 0 to 200 seconds.
17. A nucleus agent comprising:
a cyclic formula represented by a formula 1 below
formula 1
wherein,
in the formula 1, (a) each of a ring A and a ring B is a benzene ring, (b) a hydrogen bonded to the benzene ring may optionally be substituted with other groups, (c) Y is —CONH— or —NHCO—, and (d) X is a heterocyclic group or a condensed heterocyclic group including one or more NH or CO.
18. A method of improving the crystallization of polyester, comprising the step of:
adding a nucleus agent represented by a formula 1 below into a polyester having at least a partially crystallized structure
formula 1
wherein,
in the formula 1, (a) each of a ring A and a ring B is a benzene ring, (b) a hydrogen bonded to the benzene ring may optionally be substituted with other groups, (c) Y is —CONH— or —NHCO, and (d) X is a heterocyclic group or a condensed heterocyclic group including one or more NH or CO.