Polyacetal resin composition and resin molded article
Provided is a polyacetal resin composition in which at least one dihydrazone compound (B) selected from the group of two kinds of dihydrazone compounds is blended in 0.02 to 5 parts by mass with respect to 100 parts by mass of a polyacetal resin (A).
1. A polyacetal resin composition in which at least one dihydrazone compound (B) selected from the group selected from a dihydrazone compound (B1) represented by the following General Formula (1) and a dihydrazone compound (B2) represented by the following General Formula (2) is blended in 0.02 to 5 parts by mass with respect to 100 parts by mass of a polyacetal resin (A)
in the above formula, R 1 represents an aliphatic hydrocarbon group having 4 to 19 carbon atoms, an alicyclic hydrocarbon group having 6 to 10 carbon atoms, or an aromatic hydrocarbon group having 6 to 10 carbon atoms; R 2 to R 5 each represent an alkyl group having 1 or 2 carbon atoms
in the above formula, R 8 represents an aliphatic hydrocarbon group having 4 to 20 carbon atoms, an alicyclic hydrocarbon group having 6 to 10 carbon atoms, or an aromatic hydrocarbon group having 6 to 10 carbon atoms; and R 6 and R 7 each independently represent an alicyclic hydrocarbon group having 3 to 12 carbon atoms.
2. The polyacetal resin composition according to claim 1 , wherein, in the above General Formula (1), R 1 is an aliphatic hydrocarbon group having 6 to 12 carbon atoms.
3. The polyacetal resin composition according to claim 1 , wherein the dihydrazone compound (B) consists of the dihydrazone compound (B1) represented by the above General Formula (1).
4. The polyacetal resin composition according to claim 1 , wherein the dihydrazone compound (B) consists of the dihydrazone compound (B2) represented by the above General Formula (2).
5. The polyacetal resin composition according to claim 1 , wherein, in the above General Formula (1),
R 2 to R 5 are each a methyl group.
6. The polyacetal resin composition according to claim 1 , wherein the dihydrazone compound (B) is blended in 0.05 to 3 parts by mass with respect to 100 parts by mass of the polyacetal resin (A).
7. The polyacetal resin composition according to claim 1 , wherein a hydrazide compound (C) is further blended at a ratio of 0.01 to 1 part by mass with respect to 100 parts by mass of the polyacetal resin (A).
8. The polyacetal resin composition according to claim 7 , wherein the hydrazide compound (C) is composed of at least one kind of the group consisting of a monohydrazide compound and a dihydrazide compound.
9. The polyacetal resin composition according to claim 8 , wherein the hydrazide compound (C) is composed of a dihydrazide compound.
10. A resin molded article being obtained by molding the polyacetal resin composition according to claim 1 .
11. A polyacetal resin composition in which at least one dihydrazone compound (B) selected from the group selected from a dihydrazone compound (B1) represented by the following General Formula (1) and a dihydrazone compound (B2) represented by the following General Formula (2) is blended in 0.02 to 5 parts by mass with respect to 100 parts by mass of a polyacetal resin (A)
in the above formula, R 1 represents an alkylene group having 11 to 19 carbon atoms, or an alicyclic hydrocarbon group having 7 to 10 carbon atoms; R 2 to R 5 each independently represent a hydrogen atom or an alkyl group having 1 or 2 carbon atoms; at least one of R 2 and R 3 represents an alkyl group having 1 or 2 carbon atoms; and at least one of R 4 and R 5 represents an alkyl group having 1 or 2 carbon atoms
in the above formula, R 8 represents an aliphatic hydrocarbon group having 4 to 20 carbon atoms, an alicyclic hydrocarbon group having 6 to 10 carbon atoms, or an aromatic hydrocarbon group having 6 to 10 carbon atoms; and R 6 and R 7 each independently represent an alicyclic hydrocarbon group having 3 to 12 carbon atoms.
12. The polyacetal resin composition according to claim 11 , wherein, in the above General Formula (1), R 1 is an alkylene group having 11 to 12 carbon atoms.
13. The polyacetal resin composition according to claim 11 , wherein the dihydrazone compound (B) consists of the dihydrazone compound (B1) represented by the above General Formula (1).
14. The polyacetal resin composition according to claim 11 , wherein the dihydrazone compound (B) consists of the dihydrazone compound (B2) represented by the above General Formula (2).
15. The polyacetal resin composition according to claim 11 , wherein, in the above General Formula (1), when R 2 and R 4 are an ethyl group, R 3 and R 5 are a hydrogen atom, or
when R 2 and R 4 are a methyl group, R 3 and R 5 are a hydrogen atom or a methyl group.
16. The polyacetal resin composition according to claim 11 , wherein the dihydrazone compound (B) is blended in 0.05 to 3 parts by mass with respect to 100 parts by mass of the polyacetal resin (A).
17. The polyacetal resin composition according to claim 11 , wherein a hydrazide compound (C) is further blended at a ratio of 0.01 to 1 part by mass with respect to 100 parts by mass of the polyacetal resin (A).
18. The polyacetal resin composition according to claim 17 , wherein the hydrazide compound (C) is composed of at least one kind of the group consisting of a monohydrazide compound and a dihydrazide compound.
19. The polyacetal resin composition according to claim 18 , wherein the hydrazide compound (C) is composed of a dihydrazide compound.
20. A resin molded article being obtained by molding the polyacetal resin composition according to claim 11 .