Use of polyaminomethylenephosphonates as dispersing agents

A method for increasing dispersion in a liquid solution or dispersion, the method comprising:

• adding a polyaminomethylenephosphonate composition to the liquid solution or dispersion, the polyaminomethylenephosphonate composition having the formula
• wherein n is an integer higher than 2,
• wherein M is a cation selected from the group consisting of the alkaline metal ions and the ammonium ion,
• wherein each of the R groups is independently selected from the group consisting of,
• —CH2PO3M2,
• —CH2Z, wherein Z is selected from the group consisting of —CH2OH, —CHOHCH3, —CHOHCH2Cl, —CHOHCH2OH,
• —(CH2)mSO3M, wherein m is 3 or 4,
• —CH2CH2T, wherein T is selected from the group consisting of —CONH2, —CHO, —COOQ, —COOX, —CN, wherein Q is —CH3 or —C2H5,and wherein X is a cation selected from the group consisting of the alkaline metal ions and the ammonium ion,
• wherein the polyaminomethylenephosphonate composition is added in a weight quantity higher than 0.01% of total solution or dispersion weight, and
• wherein the liquid solution or dispersion further comprises a ceramic composition selected from the group consisting of clay, ceramic glass, and silicone carbide whiskers.