Charles Henry Nicol, Michael Eugene Burns: Alkyl sulfate detergent compositions. The Procter & Gamble Company, Charles R Wilson, Jerry J Yetter, Richard C Witte, December 28, 1976: US04000093 (68 worldwide citation)

Cellulose-based soil release ethers are used in detergent compositions containing C.sub.10 -C.sub.13 alkyl sulfate surfactants, and substantially free from interfering amounts of longer-chain length alkyl sulfates, to provide optimal soil release performance.

Charles Henry Nicol, Hugh Robert Hays: Detergent compositions having improved soil release properties. The Procter & Gamble Company, Jerry J Yetter, Richard C Witte, Charles R Wilson, June 8, 1976: US03962152 (43 worldwide citation)

Detergent compositions containing surface-active agents and soil release polymers comprising ethylene terephthalate and polyethylene oxide terephthalate provide improved cleaning and impart a soil release finish to synthetic fabrics treated therewith.