
US Patent No: 5,837,049
Number of patents in Portfolio can not be more than 2000
Treated inorganic solids
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Nov 17, 1998
Issued date -
Oct 23, 1997
filing date -
08/957,411
serial no -
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Abstract
A treated inorganic solid comprises particulate inorganic material the particles of which are coated with an alkylphosphonic acid or ester thereof, the alkylphosphonic acid containing 6 to 22 carbon atoms. The particulate material is usually a pigment, extender or filler which is treated by mixing with the alkylphosphonic acid or ester for example in an aqueous dispersion or during a process step such as milling. The treated inorganic solid is particularly useful for preparing polymer compositions such as masterbatches.
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First Claim
Related Publications
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
|---|---|---|---|
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| 4,781,982 Surface treating mineral particles to reduce halide adsorption | 18 | 1987 | |
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| 4,889,879 Thermoplastic compositions with very high content of pulverized mineral materials for incorporation in polymers | 6 | 1987 | |
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| 4,254,073 Pyrophosphonates and method of making same | 1 | 1980 | |
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| 4,209,430 Treatment of inorganic pigments | 29 | 1978 | |