The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 25, 2020
Filed:
Dec. 29, 2015
Stepan Company, Northfield, IL (US);
Brian Holland, Deerfield, IL (US);
Randal Bernhardt, Antioch, IL (US);
Branko Sajic, Lincolnwood, IL (US);
STEPAN COMPANY, Northfield, IL (US);
Abstract
Laundry detergents and their use for cold-water cleaning are disclosed. The detergents comprise a lipase and a mid-chain headgroup surfactant or an alkylene-bridged surfactant. The mid-chain headgroup surfactants have a C-Calkyl chain and a polar group bonded to a central zone carbon of the C-Calkyl chain. The alkylene-bridged surfactants comprise a C-Calkyl chain, a polar group, and a C-Calkylene group bonded to the polar group and a central zone carbon of the C-Calkyl chain. Surprisingly, when combined with lipases, detergents formulated with the mid-chain headgroup or alkylene-bridged surfactants effectively liquefy greasy soils at low temperature and provide outstanding cold-water performance in removing greasy stains such as bacon grease, butter, cooked beef fat, or beef tallow from soiled articles.