C - Chemistry – Metallurgy – 11 – D
Patent
C - Chemistry, Metallurgy
11
D
C11D 1/58 (2006.01) C11D 3/386 (2006.01)
Patent
CA 2107561
A process for removing especially starch-containing impurities from crockery in dishwashers makes it possible effectively to remove the impurities if a concentrated aqueous tenside solution is used which contains 0.08 to 2.0 % wt. N-C8 to C12 alkyl pyrrolidone, 0.005 to 0.125 Anson units of one or more proteases and/or 0.1 to 6 kilo-novo units of one or more amylases per litre of solution, buffer substances active in the pH range from 5 to 9 and conventional solvent agents and possibly conventional additives like foam suppressors, perfumes, colourants, thickening agents, preserving agents and hardness dispersants.
Un procédé pour extraire les impuretés contenant de l'amidon de la vaisselle mise au lave-vaisselle permet d'enlever efficacement les impuretés pour autant que soit utilisée une solution surfactante aqueuse concentrée contenant 0,08 à 2,0 % en poids de pyrrolidone d'alkyle N-C8 à C12, 0,005 à 0,125 Ansons d'une ou plusieurs protéases et/ou 0,1 à 6 kiloNovos d'une ou plusieurs amylases par litre de solution, des substances tampons actives dans la plage de pH allant de 5 à 9 et des solvants classiques et peut-être des adjuvants classiques comme des antimousses, des parfums, des colorants, des agents épaississants, des agents de préservation et des adoucisseurs.
Chemische Fabrik Dr. Weigert (gmbh & Co.)
Ridout & Maybee Llp
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