Titanium catalyst and synthesizing polyester resins
AssigneesNational Tsing Hua University, Chang Chun Plastics Co., Ltd., Chang Chun Petrochemical Co., Ltd., Dairen Chemical Corporation
InventorsYi-Chou Tsai, John Di Yi Ou, Chuan-Sheng Huang, Yung-Sheng Lin
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Abstract
A titanium catalyst and a synthesizing method of polyester resins are provided in the present disclosure. The titanium catalyst has a chemical structure represented by Formula (I), Formula (II) or Formula (III). The symbols shown in the Formula (I), the Formula (II) or the Formula (III) are defined in the description. The synthesizing method of polyester resins includes providing the titanium catalyst, performing a feeding step, performing a heating and pressurizing step and performing a heating and vacuuming step. The titanium catalyst and a heat stabilizer are added into an autoclave before the feeding step or before the heating and vacuuming step.
Claims8
A titanium catalyst, having a chemical structure shown as Formula (I) or Formula (II):
- wherein each of the R1 in the Formula (I) is independently an n-propyl group, an isopropyl group, a phenyl group, a 3,5-xylyl group, a group shown as Formula (MAI), a group shown as Formula (MAII) or a group shown as Formula (MAIII):
- each of the R2 in the Formula (II) is independently a methyl group, a phenyl group, a trifluoromethyl group or an ethyl group, each of the R3 in the Formula (II) is independently a hydrogen or an n-propyl group, and the R2 and the R3 are not simultaneously the methyl group and the hydrogen, respectively.
Dependencies are inferred from the claim text.