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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Abstract

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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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Patent Owner(s)

Patent OwnerAddressTotal Patents
BETZDEARBORN INC.TREVOSE, PA380

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
McDonald, Alexander C The Woodlands, TX 7 47
Soos, James L Conroe, TX 4 34

Cited Art Landscape

Patent Info (Count) # Cites Year
 
BETZ LABORATORIES, INC. (3)
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
 
CALGON CORPORATION (3)
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 131 1985
4,671,888 Polyelectrolyte and surfactant compositions for controlling alkaline earth metal scales 29 1986
 
Betz Entec, Inc. (1)
4,442,009 Boiler water treatment 16 1982
 
BETZDEARBORN INC. (1)
4,659,481 Water treatment polymers and methods of use thereof 56 1986
 
FMC CORPORATION (1)
4,597,889 Homogeneous laundry detergent slurries containing polymeric acrylic stabilizers 12 1984
 
ROHM AND HAAS COMPANY (1)
4,530,766 Method of inhibiting scaling in aqueous systems with low molecular weight copolymers 28 1984
 
SHFL ENTERTAINMENT, INC. (1)
7,506,874 Blackjack game with press wager 10 2006

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
ASHLAND LICENSING AND INTELLECTUAL PROPERTY LLC (2)
7,204,937 Metal oxides dispersant composition 1 2003
7,857,989 Metal oxides dispersant composition 0 2007
 
GE BETZ, INC. (2)
6,228,950 Polymer dispersants and methods of use in a nuclear steam generator 1 1998
6,430,249 Polymer dispersants and methods of use in a nuclear steam generator 1 2001
 
ROHM AND HAAS COMPANY (1)
6,114,294 Copolymeric scale inhibitors for (Poly)phosphate scale control 5 1998

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