(19)
(11) EP 0 349 200 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
20.06.1990 Bulletin 1990/25

(43) Date of publication A2:
03.01.1990 Bulletin 1990/01

(21) Application number: 89306335.4

(22) Date of filing: 23.06.1989
(51) International Patent Classification (IPC)5: C11D 11/00, C11D 17/00
(84) Designated Contracting States:
DE ES FR GB IT

(30) Priority: 22.12.1988 US 288759
29.06.1988 US 213575

(71) Applicant: THE PROCTER & GAMBLE COMPANY
Cincinnati, Ohio 45202 (US)

(72) Inventors:
  • Strauss, Daniel Louis
    Mason Ohio 45040 (US)
  • Stearns, Charles Louis
    Cincinnati Ohio 45240 (US)
  • Lobaugh, Thomas Eugene
    Freemont Ohio 43420 (US)

(74) Representative: Brooks, Maxim Courtney et al
Procter & Gamble Limited Whitley Road Longbenton
Newcastle-upon-Tyne NE12 9TS
Newcastle-upon-Tyne NE12 9TS (GB)


(56) References cited: : 
   
       


    (54) Process for making concentrated surfactant granules


    (57) The present invention relates to an energy saving process for preparing concentrated or condensed surfactant granules. High active surfactant paste is chilled and granulated using fine dis­persion mixing. The product surprisingly provides discrete, uniform (200-2,000 micron) granular particles. The granules of the present invention are preferably pure surfactant to be used as an intermediate in a final detergent formulation.





    Search report