Method of preparing phosphorous-free stable detergent emulsion

A method of manufacturing a storage stable, phosphorous-free detergent emulsion comprising the steps of:

• (a) heating about 25 to 45 wt-%, based upon the emulsion, of a 40 to 60 wt-% first sodium hydroxide solution to about 100.degree. to 160.degree. F.;
• (b) blending:
• (i) about 4 to 8 wt-% acrylic acid-itaconic acid polymer having a molecular weight between about 5,000 to 15,000,
• (ii) about 10 to 15 wt-% ethoxylated nonylphenols having 6-10 moles of ethoxylate, and
• (iii) about 6 to 10 wt-% water, based upon the emulsion, to form a pre-mix;
• (c) blending the first sodium hydroxide solution and the pre-mix to form a first intermediate mixture;
• (d) blending about 1.5 to 3.5 wt-%, based upon the emulsion, acrylic resin and the first intermediate mixture to form a second intermediate mixture;
• (e) blending about 30 to 40 wt-%, based upon the emulsion, of a 40 to 60 wt-% second sodium hydroxide solution to the second intermediate mixture to form an emulsion having a viscosity of about 250 to 1000 cps at 70.degree. F.;
• and
• (f) vigorously agitating the emulsion under high shear.