Catalyst composition and method for preparing hydrocarbon resin using the same

Patent metadata

Field	Value
Publication number	US-11987651-B2
Application number	US-202017435097-A
Country	US
Kind code	B2
Filing date	Aug 25, 2020
Priority date	Aug 26, 2019
Publication date	May 21, 2024
Grant date	May 21, 2024

Abstract

A catalyst composition and a method for preparing a hydrocarbon resin using the same are disclosed herein. In some embodiments, a catalyst composition includes an oxonium ion-based catalyst and an additive. In some embodiments, a method includes polymerizing a monomer mixture in the presence of a catalyst composition, wherein the monomer mixture comprises a C5 unsaturated hydrocarbon monomer, a C9 unsaturated hydrocarbon monomer, or a mixture thereof, wherein the catalyst composition comprising a catalyst represented by the following Formula 1 and an additive represented by the following Formula 2.

First claim

The invention claimed is:

1. A method for preparing a hydrocarbon resin, the method comprising:
polymerizing a monomer mixture in the presence of a catalyst composition,
wherein the monomer mixture comprises a C5 unsaturated hydrocarbon monomer, a C9 unsaturated hydrocarbon monomer, or a mixture thereof,
wherein the catalyst composition comprises a catalyst represented by Formula 1 and an additive represented by Formula 2:

in Formula 1,
R is an alkyl group of 4 to 12 carbon atoms,
R 1 to R4 are each independently hydrogen, a halogen group, or a substituted or unsubstituted alkyl group of 1 to 20 carbon atoms, and
o, p, q and r are each an integer of 5,
R a —X  [Formula 2]

in Formula 2,
R a is hydrogen, an alkyl group of 1 to 20 carbon atoms, a cycloalkyl group of 3 to 20 carbon atoms, an aryl group of 6 to 20 carbon atoms, an alkylaryl group of 7 to 20 carbon atoms or an arylalkyl group of 7 to 20 carbon atoms, and
X is a nitrile group, a pyridine group, an alkoxy group of 1 to 20 carbon atoms, or an aryloxy group of 6 to 20 carbon atoms.

2. The method for preparing a hydrocarbon resin according to claim 1 , wherein the C5 unsaturated hydrocarbon monomer is one or more selected from the group consisting of isoprene, 1-pentene, 2-pentene, 2-methyl-2-butene, cyclopentene, cyclopentadiene, 1,3-pentadiene, and 1,4-pentadiene.

3. The method for preparing a hydrocarbon resin according to claim 1 , wherein the C9 unsaturated hydrocarbon monomer is one or more selected from the group consisting of vinyl toluene, indene, and alpha-methylstyrene.

4. The method for preparing a hydrocarbon resin according to claim 1 , wherein the monomer mixture further comprises one or more of isobutylene, 2-methyl-1-pentene, 2-methyl-2-pentene, 1,3-hexadiene, 1,4-hexadiene, or dicyclopentadiene.

5. The method for preparing a hydrocarbon resin according to claim 1 , wherein the additive represented by Formula 2 is one or more selected from the group consisting of acetonitrile, benzonitrile, 2-phenylpyridine, diethyl ether, and dibutyl ether.

6. The method for preparing a hydrocarbon resin according to claim 1 , wherein, in Formula 1, R is a n-butyl group, an isobutyl group, a t-butyl group, a n-pentyl group, an isopentyl group, or a hexyl group.

7. The method for preparing a hydrocarbon resin according to claim 1 , wherein, in Formula 1, R 1 to R 4 are each independently a halogen group or a halogen group-substituted alkyl group of 1 to 12 carbon atoms.

8. The method for preparing a hydrocarbon resin according to claim 1 , wherein

of the catalyst represented by Formula 1 is one or more selected from the group consisting of tetrakis(phenyl)borate, tetrakis(pentafluorophenyl)borate, tetrakis [3,5-bis(trifluoromethyl)phenyl]borate, and derivatives thereof.

9. The method for preparing a hydrocarbon resin according to claim 1 , wherein the catalyst represented by Formula 1 is dissolved in a halogenated hydrocarbon solvent prior to polymerization of the monomer mixture.

10. The method for preparing a hydrocarbon resin according to claim 1 , wherein the polymerization of the monomer mixture is performed at a temperature of −10° C. to 30 20 C. for 30 minutes to 2 hours.

Assignees

• Lg Chemical Ltd

Inventors

• Choi Gyeong Shin
• Kim Won Hee
• Ko Young Soo
• Jung Ha Young
• Carino Ann Chaise

Classifications

• C08F112/08 Primary

  Styrene · CPC title

• C07F5/027

  Organoboranes and organoborohydrides · CPC title

• C08K5/06

  Ethers; Acetals; Ketals; Ortho-esters · CPC title

• C08K5/315

  Compounds containing carbon-to-nitrogen triple bonds · CPC title

• C08K5/3432

  Six-membered rings · CPC title