US Patent No: 4,931,206
Number of patents in Portfolio can not be more than 2000
Boiler water treatment composition
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Jun 5, 1990
Issued date -
Feb 21, 1989
filing date -
07/313,642
serial no -
Expired
status
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Abstract
A composition for treatment of boiler waters is disclosed. The composition comprises a synergetic combination of a methacrylic acid-containing polymer with a strongly interacting nonionic surfactant, together with a chelant and/or a phosphate-generating species. The composition is particularly effective when the surfactant is an alkoxylated alkylphenol or an alkoxylated alkylphenol ether.
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First Claim
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International Classification(s)
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Cited Art
| Patent Info | (Count) | # Cites | Year |
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| 4,288,327 Copolymers for the control of the formation and deposition of materials in aqueous mediums | 43 | 1979 | |
| 4,326,980 Acrylic copolymer composition inhibits scale formation and disperses oil in aqueous systems | 18 | 1981 | |
| 4,828,713 Boiler water treatment | 14 | 1988 | |
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| 4,589,985 Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales | 15 | 1984 | |
| 4,640,793 Synergistic scale and corrosion inhibiting admixtures containing carboxylic acid/sulfonic acid polymers | 129 | 1985 | |
| 4,671,888 Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales | 29 | 1986 | |
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| 4,442,009 Boiler water treatment | 16 | 1982 | |
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| 4,659,481 Water treatment polymers and methods of use thereof | 56 | 1986 | |
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| 4,597,889 Homogeneous laundry detergent slurries containing polymeric acrylic stabilizers | 12 | 1984 | |
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| 4,530,766 Method of inhibiting scaling in aqueous systems with low molecular weight copolymers | 28 | 1984 | |
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| 7,506,874 Blackjack game with press wager | 8 | 2006 | |