Preparation method of hydrogenated petroleum resin

Patent metadata

Field	Value
Publication number	US-2022325011-A1
Application number	US-202017615885-A
Country	US
Kind code	A1
Filing date	Jun 2, 2020
Priority date	Jun 3, 2019
Publication date	Oct 13, 2022
Grant date	—

Abstract

The invention relates to a method for preparing hydrogenated petroleum resin. More specifically, the invention relates to a method for preparing hydrogenated petroleum resin having aromaticity of 10% or more and exhibiting excellent color and thermal stability, through a hydrogenation reaction in a slurry reactor, using a selective hydrogenation catalyst having excellent selectivity to olefinic double bonds in petroleum resin.

First claim

1 . A method for preparing hydrogenated petroleum resin comprising the steps of:
introducing a selective hydrogenation catalyst and hydrogen gas in a mixture of petroleum resin and a solvent and conducting a hydrogenation reaction, wherein the selective hydrogenation catalyst is a supported catalyst in which nickel and sulfur are supported on a carrier, and comprises nickel in the content of 40 to 80 wt %, based on the total weight of the selective hydrogenation catalyst, and the hydrogenated petroleum resin has aromaticity of 10% or more, and APHA value measured according to ASTM D1209 of 20 or less.

2 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the mole ratio of sulfur to 1 mole of nickel is 0.03 to 0.5.

3 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the carrier comprises silica, alumina, magnesia or a mixture thereof.

4 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the carrier is comprised in an amount of 10 to 50 wt % based on the total weight of the selective hydrogenation catalyst.

5 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the selective hydrogenation catalyst is used in the amount of 0.2 to 10 parts by weight, based on 100 parts by weight of the petroleum resin.

6 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein one or more hydrogenation catalysts selected from the group consisting of a selective hydrogenation catalyst comprising nickel and copper; a selective hydrogenation catalyst comprising noble metal; and a non-selective hydrogenation catalyst of nickel metal are further added during the hydrogenation reaction.

7 . The method for preparing hydrogenated petroleum resin according to claim 6 , wherein the hydrogenation catalyst is comprised in an amount of 0.1 to 10 parts by weight, based on 1 part by weight of the selective hydrogenation catalyst.

8 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the solvent is a hydrocarbon-based solvent selected from the group consisting of pentane, hexane, heptane, nonane, decane, cyclohexane, methylcyclohexane, benzene, toluene, xylene, and a mixture thereof.

9 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the solvent is used in an amount of 40 to 80 parts by weight, based on 100 parts by weight of the petroleum resin.

10 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the hydrogenation reaction is conducted in a slurry reactor.

11 . The method for preparing hydrogenated petroleum resin according to claim 10 , wherein the slurry reactor is an autoclave type reactor equipped with a stirrer or a loop type reactor circulating and mixing reaction fluid.

12 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the hydrogenation reaction is conducted at a temperature of 150 to 250° C., and a pressure of 20 to 100 bar.

13 . The method for preparing hydrogenated petroleum resin according to claim 1 , wherein the hydrogenation reaction is conducted while continuously introducing hydrogen gas so as to maintain reaction pressure during the reaction.

14 . Hydrogenated petroleum resin prepared by the method according to claim 1 , having aromaticity of 10% or more and APHA value measured according to ASTM D1209 of 20 or less.

15 . The hydrogenated petroleum resin according to claim 14 , wherein aromaticity is 10 to 15%, APHA value measured according to ASTM D1209 is 10 to 20, and color number measured with Gardner color scale after aging at 180° C. for 72 hours is 13 to 15.

16 . A pressure sensitive adhesive comprising the hydrogenated petroleum resin according to claim 14 .

17 . An adhesive comprising the hydrogenated petroleum resin according to claim 14 .

Assignees

• Hanwha Solutions Corp

Inventors

• Seo Sangho
• Han Keedo
• Seong Pilje
• Shin Dong Ll
• Jeon Bong Sik

Classifications

• B01J23/755

  Nickel · CPC title

• C09J157/02

  Copolymers of mineral oil hydrocarbons · CPC title

• C09J125/02 Primary

  Homopolymers or copolymers of hydrocarbons · CPC title

• C08F2/01

  characterised by special features of the polymerisation apparatus used · CPC title

• C08F8/04 Primary

  Reduction, e.g. hydrogenation · CPC title