Cleaning products comprising improved alkylarylsulfonate surfactants prepared via vinylidene olefins and processes for preparation thereof

US6566319B1 · kind B1 · utility

Assignee

• The Procter & Gamble Company · US

Inventors

• Jeffrey John Scheibel · Loveland, US
• Kevin Lee Kott · Cincinnati, US
• Thomas Anthony Cripe · Loveland, US
• Daniel Stedman Connor · Cincinnati, US
• James Charles Theophile Roger Burckett-St. Laurent · Lasne, BE

Key dates

• Filing date: Jan 7, 2000
• Grant date: May 20, 2003
• Expiry date: Jan 7, 2020

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D11/04
• WIPO field: Organic fine chemistry
• WIPO sector: Chemistry

Abstract

Cleaning compositions, especially laundry detergents and the like, comprising (i) modified alkylarylsulfonate surfactants, e.g., modified alkylbenzenesulfonates, which are the product of particular processes and (ii) cleaning adjuncts such as enzymes and bleaches. Processes for making the cleaning products, including processes comprising vinylidene olefin production, alkylation of arenes, sulfonation and domestic cleaning product formulation. VO production is used to introduce particular limited branching into an alpha-olefinic feedstock which, converted to dimer form, has from about 10 to about 16, preferably from about 12 to about 14 carbon atoms. Preferred processes maximize the amount of vinylidene olefin useful for detergent manufacture, and minimize deep internal olefin production. Further, an alkylation step, preferably having an internal isomer selectivity of from 0 to no more than about 40 is used, in which the VO monoalkylates arenes such as benzene, in presence of an alkylation catalyst preferably comprising an at least partially crystalline, porous zeolite-containing solid, the zeolite being at least partially acidic and having intermediate pore size. Preferred alkylati…