Cleaning compositions for solid surfaces – auxiliary compositions – Cleaning compositions or processes of preparing – For cleaning a specific substrate or removing a specific...
Patent
1994-10-24
1996-11-12
Lieberman, Paul
Cleaning compositions for solid surfaces, auxiliary compositions
Cleaning compositions or processes of preparing
For cleaning a specific substrate or removing a specific...
252380, 206503, 206515, 206519, 2065241, 220770, 220771, 510224, 510295, 510439, C11D 1700, B65D 2104, B65D 8584
Patent
active
055736980
DESCRIPTION:
BRIEF SUMMARY
BACKGROUND OF THE INVENTION
The invention is directed to the subject matter recited in the patent claims. In particular, the invention is directed to a method for manufacturing pressed, shaped and at least partially porously fashioned detergent, cleaning agent, disinfectant and/or preservative without employing a pre-heated melt or solution, whereby a pre-fabricated premix composed of powdered and/or granulated active ingredients manufactured with or without mixing this prefabricated mixture with a binder is filled into a suitably shaped, shape-stable, stackable and refillable returnable container without undercuts and is compressed under pressure, so that a compact block having powder structure consolidated in the container is formed.
The invention is also directed to recyclable, upwardly open as well as conically upwardly expanding returnable containers that can be utilized for liquid, solid or, respectively, powdered detergent, cleaning agent, disinfectant and/or preservative and that, in particular, can be utilized in dishwashers and washing machines for the implementation of the afore-mentioned method. In particular, the invention is directed to reemployable or, respectively, recyclable returnable containers particularly suitable for employment in washing machines that contain detergent, cleaning agent, disinfectant and/or preservative, said returnable containers being fashioned such that detergent, cleaning agent, disinfectant and/or preservative is delivered from the container when a stream of aqueous liquid is placed on a surface of the detergent, cleaning agent, disinfectant and/or preservative exposed to said stream of aqueous liquid. The invention, finally, is directed to the employment of this returnable container. It is critical for the container of the invention including the cover thereof that both the filled and closed container as well as the empty container and the cover is (are) fashioned stackable in and of itself (themselves).
Advantageous embodiments of the invention are contained in the subclaims.
In addition to liquid, paste-like or powdered detergents, shaped, piece-shaped, solid detergent products have been known and in use for a long time such as, for example, bars of soap, syndet bars of soap, toilet cones or tablets, shaped detergents for dishwashers and washing machines, etc.
A general overview is contained, for example, in the publication by H. E. Tschakert, "Seifen", Oele, Wachse, 98 (1972) 793-801, 845-849 and Ibid. 99 (1973) 3-7.
In addition to the manufacture of such shaped, piece-shaped detergent products by pressing and extruding processes (to form tablets, briquettes and the like), manufacture by pouring a solution or melt capable of solidification into forms has been standard for a long time, this having the advantage compared to pressing that complicated and, for example, irregularly structured shaped pieces can also be manufactured in a simple way.
The solution or melt is frequently poured into the molds in the heated condition in this case and they solidify when cooled.
The shaped pieces can either be removed from the molds after the solidification and can reach the user in a separate packing or, on the other hand, the container employed as mold simultaneously serves as packaging for the shaped detergent piece and reaches the user connected thereto, whereby the amount of detergent required for the respective use in every employment is generally released from the shaped, piece-shaped detergent product in its envelope due to the action of corresponding solvents, usually water.
Examples of such product formulations and manufacturing methods are recited, for example, in Tenside 8 (1991) 275, in Tenside 11 (1974) 330, in Seife, Oele, Fette, Wachse 96, No. 23 (1970) 823 as well as, in particular, in the afore-mentioned publication by H. E. Tschakert.
Likewise, the "Jahrbuch fuer den Praktiker", Verlag fuer Chem. Ind. Ziolkowski, Augsburg, 1972, p. 194, 1973, p. 229, 1974, p. 110 and pp. 132, 134, 135, 1975, pp. 116, 117, 118, 1976, pp. 116-120, which is well-known to a
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Kompan J urgen
Mandler Gunter
Rieber Wolfram
Sander Richard
Douyon Lorna M.
Ecopack GmbH & Co.
Lieberman Paul
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