Detergents and liquid cleaners free of inorganic builders

US4608189A · kind A · utility

Assignee

• Henkel Kommanditgesellschaft auf Aktien · DE

Inventors

• Karlheinz Koch
• Ingo Wegener · Goldkronach, DE
• Brigitte Giesen · Goldkronach, DE

Key dates

• Filing date: May 8, 1985
• Grant date: Aug 26, 1986
• Expiry date: May 8, 2005

Classification

• Technology area (CPC C): Chemistry; Metallurgy
• CPC primary: C11D1/72
• WIPO field: Basic materials chemistry
• WIPO sector: Chemistry

Abstract

Aqueous liquid laundering and cleaning detergent compositions, essentially free from inorganic builder salts, comprising: PA0 (a) 20-40 wt. % of a mixture of nonionic surfactants of the formula: EQU RO--[CH.sub.2 --CH(CH.sub.3)--O]m--(CH.sub.2 --CH.sub.2 --O)n--H (I) PA0 where R is a C.sub.10 -C.sub.20 aliphatic hydrocarbon group; m=1-5; n=3-20; n>m; and the mixture is composed of: PA1 (i) 5-9 parts by weight of a Formula I compound where n=3-9, PA1 (ii) 1-5 parts by weight of a Formula I compound where n=10-20, and PA1 (iii) 0-6 parts by weight of a Formula I compound where m=1-3, and n=9-11; PA0 (b) 2-25 wt. % of a sodium, potassium, mono-, di- or trialkanolamine soap of a C.sub.10 1-C.sub.20 fatty acid; PA0 (c) 0.001-2 wt. % of a proteolytic enzyme; and PA0 (d) 5-25 wt. % C.sub.2 14 C.sub.4 mono- or polyhydroxy alcohol; wherein (a) and (b) together are 30-50 wt. % of the composition, and a 1% aqueous solution thereof has a pH of 6.5-9.