(19)
(11) EP 0 286 075 A3

(12) EUROPEAN PATENT APPLICATION

(88) Date of publication A3:
11.07.1990 Bulletin 1990/28

(43) Date of publication A2:
12.10.1988 Bulletin 1988/41

(21) Application number: 88105516.4

(22) Date of filing: 07.04.1988
(51) International Patent Classification (IPC)4C11D 3/43, C11D 3/30
(84) Designated Contracting States:
AT BE CH DE ES FR GB GR IT LI NL SE

(30) Priority: 10.04.1987 US 36635

(71) Applicant: Colgate-Palmolive Company
New York, N.Y. 10022-7499 (US)

(72) Inventors:
  • Han, Shaw-Lin
    East Amherst New York (US)
  • Lai, Kuo-Yann
    Plainsboro New Jersey (US)
  • Duliba, Edward P.
    Piscataway New Jersey (US)

(74) Representative: UEXKÜLL & STOLBERG 
Patentanwälte Beselerstrasse 4
22607 Hamburg
22607 Hamburg (DE)


(56) References cited: : 
   
       


    (54) Detergent composition


    (57) Liquid, caustic-free, pre-spotting compositions that remove baked-on food residues from hard surfaces at ambient temperatures are provided which comprise:

    a. from about 1 to 40%, preferably 4 to 20%, of a surfactant selected from the group consisting of anionic surfactants, nonionic surfactants and mixtures thereof;

    b. from about 1 to 10% of a builder selected from the group consisting of polyphosphates, pyrophosphates, citrates, carbonates, and mixtures thereof;

    c. from about 0.2% to 2% of an amine selected from the group consisting of monoethanolamine, diethanolamine, triethanolamine and mixtures thereof;

    d. water; and

    e. further comprising from about 3 to 50% of a solvent, which solvent is selected from the groups consisting of:

    i) sulfolane, propylene glycol monoethyl ether acetate, dipropylene glycol monomethyl ether acetate, ethylene glycol monoethyl ether acetate, diethylene glycol monoethyl ether acetate, diethylene glycol dimethyl ether, ethylene glycol dimethyl ether, diethylene glycol diethyl ether, and mixtures thereof;

    ii) diethylene glycol monobutyl ether, ethylene glycol monobutyl ether, and N-methyl 2-pyrrolidone and mixtures thereof; and

    iii) a mixture of two solvents, the first such solvent comprising 5-17% of an acetate selected from the group consisting of ethyl acetate and n-propyl acetate, and the second such solvent comprising 15-34% of a solvent selected from the group consisting of acetone, N-methyl 2-pyrrolidone and methyl ethyl ketone, wherein the ratio of the first solvent to the second solvent may range from 1:4 to 1:2.


    Additionally, such formulations may include:

    f. from about 3 to 22% of imidazole; and

    g. up to 6% of a foam booster, a foam stabilizer, a viscosity adjusting agent, and mixtures thereof.







    Search report