润滑科技信息平台

Polyisobutyl benzene sulfonate for lubricants and fuels

专利摘要

The present invention relates to a method for preparing a polyisobutyl benzene sulfonate comprising the steps of alkylation of benzene with a terminal unsaturated polyisobutene to produce a polyisobutyl benzene, sulfonation of the polyisobutyl benzene to produce a polyisobutyl benzene sulfonic acid, and neutralizing the polyisobutyl benzene sulfonic acid to produce a polyisobutyl benzene sulfonate. The invention also relates to the polyisobutyl benzene sulfonate, the polyisobutyl benzene sulfonic acid, the polyisobutyl benzene, and to a lubricant comprising the polyisobutyl benzene sulfonate, to a fuel comprising the polyisobutyl benzene sulfonate, and to a use of the polyisobutyl benzene sulfonate as lubricant additive or fuel additive. ......

基本信息

专利类型:
发明专利
申请/专利号:
PCT/EP2023/064428
申请日期:
2023-05-30
专利申请人:
巴斯夫欧洲公司
分类号:
["C10L1/24","C10L10/18","C10M135/10","C07C303/06","C07C309/31","C08F10/10","C08F110/10","C10N10/04","C10N20/00","C10N30/04"]
发明/设计人:
PERETOLCHIN, MAXIM ， KOSCHABEK, RENE ， SCHUSTER, THOMAS
权利要求: Claims1. A method for preparing a polyisobutyl benzene sulfonate comprising the steps of i) alkylation of benzene with a terminal unsaturated polyisobutene to produce a polyisobutyl benzene, ii) sulfonation of the polyisobutyl benzene to produce a polyisobutyl benzene sulfonic acid, and iii) neutralizing the polyisobutyl benzene sulfonic acid to produce a polyisobutyl benzene sulfonate.2. The method according to claim 1 where the terminal unsaturated polyisobutene is of the formula (b1), (b2), or mixtures thereofwhere p is in the range from 5 to 100, preferably from 8 to 80, and in particular from 10 to 50.3. The method according to claim 1 or 2 where the terminal unsaturated polyisobutene comprises at least 50 mol%, preferably at least 60 mol% and in particular at least 80 mol%, based on the total number of polyisobutene macromolecules, of terminal double bonds.4. The method according to any of the preceding claims where the polyisobutyl group has a molecular weight of 300 to 10.000 g/mol, preferably from 400 to 5000 g/mol, and in particular from 400 to 3000 g/mol.5. The method according to any of the preceding claims where the polyisobutyl is a monovalent radical of the formula (a)where p is in the range from 5 to 100, preferably from 8 to 80, and in particular from 10 to 50.6. The method according to any of the preceding claims where the sulfonic acid group is in para position to the polyisobutyl group.A polyisobutyl benzene sulfonate. The polyisobutyl benzene sulfonate according to claim 7 where the polyisobutyl group has a molecular weight of 300 to 10.000 g/mol, preferably from 400 to 5000 g/mol, and in particular from 400 to 3000 g/mol. The polyisobutyl benzene sulfonate according to claim 7 or 8, in form of a neutral or overbased alkali metal salt, earth alkali metal salt or ammonium salt. The polyisobutyl benzene sulfonate according to any of claims 7 to 9 where the sulfonate group is in para position to the polyisobutyl group. A polyisobutyl benzene sulfonic acid. The polyisobutyl benzene sulfonic acid according to claim 11 where the polyisobutyl group has a molecular weight of 300 to 10.000 g/mol, preferably from 400 to 5000 g/mol, and in particular from 400 to 3000 g/mol. The polyisobutyl benzene sulfonic acid according to claim 11 or 12 having the general structure (II)where p is in the range from 5 to 100. The polyisobutyl benzene sulfonic acid according to claims 11 to 13 where the sulfonic acid group is in para position to the polyisobutyl group. A polyisobutyl benzene. The polyisobutyl benzene according to claim 15 where the polyisobutyl group has a molecular weight of 300 to 10.000 g/mol, preferably from 400 to 5000 g/mol, and in particular from 400 to 3000 g/mol.A lubricant, preferably a lubricating liquid, a lubricating oil or a lubricating grease, comprising the polyisobutyl benzene sulfonate as defined in any of claims 7 to 10 or obtainable according to the method as defined in any of claims 1 to 6. A fuel comprising the polyisobutyl benzene sulfonate as defined in any of claims 7 to 10 or obtainable according to the method as defined in any of claims 1 to 6. A use of the polyisobutyl benzene sulfonate as defined in any of claims 7 to 10 or obtainable according to the method as defined in any of claims 1 to 6 as lubricant additive or fuel additive.