Plasticizer composition and resin composition, and preparation method thereof

Patent metadata

Field	Value
Publication number	US-12410302-B2
Application number	US-202217729439-A
Country	US
Kind code	B2
Filing date	Apr 26, 2022
Priority date	Feb 12, 2015
Publication date	Sep 9, 2025
Grant date	Sep 9, 2025

Abstract

Provided are a plasticizer composition and a resin composition, and a preparation method thereof, wherein the present invention may provide a plasticizer, which may improve physical properties, such as plasticizing efficiency, migration, tensile strength, elongation rate, stress resistance, and light resistance, required for a sheet formulation when used as a plasticizer of a resin composition, by improving poor physical properties that have been ascribed to structural limitations, and a resin composition including the plasticizer.

First claim

The invention claimed is:

1. A plasticizer composition comprising:
a terephthalate-based material; and
a citrate-based material,
wherein a weight ratio of the terephthalate-based material to the citrate-based material is in a range of 95:5 to 50:50, and
wherein the terephthalate material is a second mixture in which diisononyl terephthalate, butyl isononyl terephthalate, and dibutyl terephthalate are mixed, or a third mixture in which di(2-ethylhexyl)terephthalate, (2-ethylhexyl)isononyl terephthalate, and diisononyl terephthalate are mixed, and
wherein the citrate-based material is at least one selected from the group consisting of tributyl citrate, tripentyl citrate, trihexyl citrate, triheptyl citrate, trioctyl citrate, trinonyl citrate, 1,2-dibutyl 3-(2-ethylhexyl)2-hydroxypropane-1,2,3-tricarboxylate, 1,3-dibutyl 2-(2-ethylhexyl)2-hydroxypropane-1,2,3-tricarboxylate, 1-butyl 2,3-bis(2-ethylhexyl)2-hydroxypropane-1,2,3-tricarboxylate, 2-butyl 1,3-bis(2-ethylhexyl)2-hydroxypropane-1,2,3-tricarboxylate, 1,2-dipentyl 3-heptyl 2-hydroxypropane-1,2,3-tricarboxylate, 1,3-dipentyl 2-heptyl 2-hydroxypropane-1,2,3-tricarboxylate, 1-pentyl 2,3-diheptyl 2-hydroxypropane-1,2,3-tricarboxylate and 2-butyl 1,3-diheptyl 2-hydroxypropane-1,2,3-tricarboxylate.

2. The plasticizer composition of claim 1 , wherein the weight ratio of the terephthalate-based material to the citrate-based material is in a range of 80:20 to 50:50.

3. The plasticizer composition of claim 1 , further comprising an epoxidized oil.

4. The plasticizer composition of claim 3 , wherein the epoxidized oil is included in an amount of 1 part by weight to 100 parts by weight based on 100 parts by weight of the plasticizer composition.

5. A resin composition comprising:
100 parts by weight of a resin; and
5 parts by weight to 150 parts by weight of the plasticizer composition of claim 1 .

6. The resin composition of claim 5 , wherein the resin comprises at least one selected from the group consisting of ethylene vinyl acetate, polyethylene, polypropylene, polyvinyl chloride, polystyrene, polyurethane, and a thermoplastic elastomer.

7. The resin composition of claim 5 , wherein the resin composition is a material of at least one product selected from the group consisting of electric wires, flooring materials, automotive interior materials, films, sheets, wallpaper, and tubes.

Assignees

• Lg Chemical Ltd

Inventors

• Kim Hyun Kyu
• Lee Mi Yeon
• Moon Jeong Ju
• Kim Joo Ho
• Jeong Seok Ho

Classifications

• C08K5/1515

  Three-membered rings · CPC title

• C08K5/11

  of acyclic polycarboxylic acids · CPC title

• C08J3/18

  Plasticising macromolecular compounds (plasticisers C08K) · CPC title

• C08L2207/04

  Thermoplastic elastomer · CPC title

• C08J2323/06

  Polyethene · CPC title