COMPOSITION BASED ON POLYESTER RESIN AND A MOLDED PRODUCT MADE FROM IT

Claims

1. A polyester resin-based composition comprising a polyester resin (A) and a dye (B), characterized in that the polyester resin (A) comprises a dicarboxylic acid component unit and a diol component unit, the dicarboxylic acid unit is a terephthalic acid unit and / or a 2,6-naphthalenedicarboxylic acid unit, from 5% to 90% by molar ratio of the diol constituent unit is a unit derived from a diol having a cyclic acetal skeleton represented by the following general formula (1) or general formula (2), and from 5% to 90% by molar ratio of the diol constituent unit is a unit derived from an alicyclic diol, dye (B) is a combination of Solvent Blue RR and Solvent Violet 36, a combination of Solvent Blue 97 and Solvent Violet 36, or a combination of Reactive Red 2 and Solvent Blue 104, The mixing ratio (unit:mass) of Solvent Blue RR and Solvent Violet 36 is Solvent Blue RR: Solvent Violet 36 = 70 to 50: 30 to 50, the mixing ratio (unit:mass) of Solvent Blue 97 and Solvent Violet 36 is Solvent Blue 97: Solvent Violet 36 = 70 to 50: 30 to 50, the mixing ratio (unit:mass) of Reactive Red 2 and Solvent Blue 104 is Solvent Blue 104 : Reactive Red 2 = 70 to 50 : 30 to 50, and said polyester resin-based composition contains a dye (B) in an amount of 0.5 ppm or more and 10 ppm or less:: [Formula 1] and in formula (1) each R 1 and R 2 independently represents an aliphatic group containing from 1 to 10 carbon atoms, an alicyclic group containing from 3 to 10 carbon atoms, or an aromatic group containing from 6 to 10 carbon atoms, [Formula 2] in formula (2) R 1 is the same as described above, R 3 is an aliphatic group containing from 1 to 10 carbon atoms, an alicyclic group containing from 3 to 10 carbon atoms, or an aromatic group containing from 6 to 10 carbon atoms.

2. A polyester resin-based composition comprising a polyester resin (A) and a dye (B), characterized in that the polyester resin (A) comprises a dicarboxylic acid component unit and a diol component unit, the dicarboxylic acid unit is a terephthalic acid unit and / or a 2,6-naphthalenedicarboxylic acid unit, from 5% to 90% by molar ratio of the diol constituent unit is a unit derived from a diol having a cyclic acetal skeleton represented by the following general formula (1) or general formula (2), and from 5% to 90% by molar ratio of the diol constituent unit is a unit derived from an alicyclic diol, the dye (B) is a combination of a compound of the following formula (3) and a compound of the following formula (4), or a combination of a compound of the following formula (5) and a compound of the following formula (6), the mixing ratio (unit:mass) of the compound of the following formula (3) and the compound of the following formula (4) is: compound of the following formula (3) : compound of the following formula (4) = 70-50 : 30-50, the mixing ratio (unit:mass) of the compound of the following formula (5) and the compound of the following formula (64) is: compound of the following formula (6) : compound of the following formula (5) = 70-50 : 30-50, and the said polyester resin-based composition contains a dye (B) in an amount of 0.5 ppm or more and 10 ppm or less: [Formula 3] and in formula (1) each R 1 and R 2 independently represents an aliphatic group containing from 1 to 10 carbon atoms, an alicyclic group containing from 3 to 10 carbon atoms, or an aromatic group containing from 6 to 10 carbon atoms, [Formula 4] in formula (2) R 1 is the same as described above, R 3 is an aliphatic group containing from 1 to 10 carbon atoms, an alicyclic group containing from 3 to 10 carbon atoms, or an aromatic group containing from 6 to 10 carbon atoms. [Formula 5] 3. A polyester resin composition according to claim 1 or 2, wherein the diol having a cyclic acetal skeleton is 3,9-bis(1,1-dimethyl-2-hydroxyethyl)-2,4,8,10-tetraoxaspiro[5.5]undecane, and the alicyclic diol is 1,4-cyclohexanedimethanol.

4. A polyester resin composition according to claim 1 or 2, wherein the dicarboxylic acid component unit is a 2,6-naphthalenedicarboxylic acid unit.

5. The polyester resin composition according to claim 1 or 2, wherein the polycarbodiimide content in the polyester resin composition is less than 0.1% by weight.

6. A molded product in which a polyester resin-based composition according to claim 1 or 2 is used.

7. A container in which a polyester resin-based composition according to claim 1 or 2 is used.

8. A baby bottle in which the polyester resin-based composition according to claim 1 or 2 is used.