Nucleating agent, synthetic-resin composition containing same, and molded object thereof

Patent metadata

Field	Value
Publication number	US-12540122-B2
Application number	US-201917279817-A
Country	US
Kind code	B2
Filing date	Sep 25, 2019
Priority date	Sep 26, 2018
Publication date	Feb 3, 2026
Grant date	Feb 3, 2026

Abstract

Provided are: a novel nucleating agent capable of imparting excellent transparency to synthetic resins; a synthetic resin composition containing the same; and a molded object of the synthetic resin composition. The nucleating agent contains at least one triazine compound represented by Formula (1), wherein Ar 1 , Ar 2 and Ar 3 each independently represent an unsubstituted phenyl group or a substituted phenyl group. In Formula (1), for example, the number of substituents of the substituted phenyl group is preferably 1, and Ar 1 , Ar 2 and Ar 3 are preferably all different groups.

First claim

The invention claimed is:

1 . A method of improving the transparency of a synthetic resin, the method comprising: a step of incorporating a nucleating agent comprising at least one triazine compound represented by the following Formula (1) into the synthetic resin:

wherein Ar 1, Ar 2 and Ar 3 each independently represent an unsubstituted phenyl group or a substituted phenyl group.

2 . The method according to claim 1 , wherein, in Formula (1), the number of substituents of the substituted phenyl group is 1.

3 . The method according to claim 2 , wherein, in Formula (1), the substituent of the substituted phenyl group is located at the para-position.

4 . The method according to claim 1 , wherein, in Formula (1), Ar 1, Ar 2 and Ar 3 are all different groups.

5 . The method according to claim 1 , wherein, in Formula (1), Ar 1 and Ar 2 are the same group, and Ar 3 is a group different from Ar 1 and Ar 2.

6 . The method according to claim 5 , wherein, in Formula (1), Ar 1 and Ar 2 are unsubstituted phenyl groups.

7 . The method according to claim 1 , wherein, in Formula (1), Ar 1, Ar 2 and Ar 3 are all substituted phenyl groups.

8 . The method according to claim 7 , wherein, in Formula (1), Ar 1 and Ar 2 have the same substituent, and Ar 3 has a substituent different from that of Ar 1 and Ar 2 .

9 . The method according to claim 1 , wherein at least one of substituted phenyl groups in Formula (1) has a substituent containing a carbonyl group in its structure.

10 . The method according to claim 9 , wherein, in Formula (1), Ar 3 has the substituent containing a carbonyl group in its structure.

11 . A synthetic resin composition, comprising:
a synthetic resin; and a nucleating agent comprising at least one triazine compound represented by the following Formula (1):

wherein Ar 1, Ar 2 and Ar 3 each independently represent an unsubstituted phenyl group or a substituted phenyl group,
wherein the content of the nucleating agent is 0.001 to 10 parts by mass with respect to 100 parts by mass of the synthetic resin, and
wherein the synthetic resin is a polyolefin-based resin.

12 . A molded object, comprising the synthetic resin composition according to claim 11 .

13 . The method according to claim 2 , wherein, in Formula (1), Ar 1, Ar 2 and Ar 3 are all different groups.

14 . The method according to claim 3 , wherein, in Formula (1), Ar 1, Ar 2 and Ar 3 are all different groups.

15 . The method according to claim 2 , wherein, in Formula (1), Ar 1 and Ar 2 are the same group, and Ar 3 is a group different from Ar 1 and Ar 2.

16 . The method according to claim 3 , wherein, in Formula (1), Ar 1 and Ar 2 are the same group, and Ar 3 is a group different from Ar 1 and Ar 2 .

17 . The method according to claim 2 , wherein, in Formula (1), Ar 1, Ar 2 and Ar 3 are all substituted phenyl groups.

18 . The method according to claim 3 , wherein, in Formula (1), Ar 1, Ar 2 and Ar 3 are all substituted phenyl groups.

19 . A method of producing a synthetic resin composition, the method comprising:
a step of incorporating a nucleating agent comprising at least one triazine compound represented by the following Formula (1) into a synthetic resin:

wherein Ar 1, Ar 2 and Ar 3 each independently represent an unsubstituted phenyl group or a substituted phenyl group,
wherein the content of the nucleating agent is 0.001 to 10 parts by mass with respect to 100 parts by mass of the synthetic resin, and
wherein the synthetic resin is a polyolefin-based resin.

Assignees

• Adeka Corp

Inventors

• Fukui Satoshi
• Ueda Naoto

Classifications

• C08K5/3492 Primary

  Triazines · CPC title

• C07D251/30 Primary

  Only oxygen atoms · CPC title

• C07D251/34 Primary

  Cyanuric or isocyanuric esters · CPC title

• C08L101/00

  Compositions of unspecified macromolecular compounds · CPC title

• C08K5/0083

  Nucleating agents promoting the crystallisation of the polymer matrix · CPC title