Polybutene based foam control compositions for aqueous systems

Details Polybutene based foam control compositions for aqueous systems Polybutene based foam control compositions for aqueous systems

1991-02-06

1993-07-20

Stoll, Robert L.

Compositions

Preservative agents

Anti-corrosion

252321, B01D 1700, B01D 1904

Patent

active

052290336

ABSTRACT:
A composition to control foam in aqueous systems such as those found in papermaking operations comprising a polybutene and at least one surfactant having a melting or pour point below 20.degree. C. The surfactants include polyethylene glycol esters, sorbitan ester, polyoxyalkylene ester, oleic diethanolamide and block copolymers of ethylene oxide and propylene oxide. Due to their low melting point, these surfactants may be blended with the polybutene at room temperature resulting in a foam control composition that is translucent, resistant to deposition and highly effective.

REFERENCES:
patent: 3652453 (1972-03-01), MacDonnell
patent: 3677963 (1972-07-01), Lichtman et al.
patent: 3705859 (1972-12-01), Boylan
patent: 3705860 (1972-12-01), Duvall
patent: 3723342 (1973-03-01), Shane et al.
patent: 3935121 (1976-01-01), Lieberman et al.
patent: 3959175 (1976-05-01), Smith, Jr. et al.
patent: 4451390 (1984-05-01), Flannigan
patent: 4950420 (1990-08-01), Svarz
patent: 5045232 (1991-09-01), Dahanayake
Chemical Abstract 87:103470d.
Derwent Publication: J4909977 Abstract, Sep. 20, 1974.
McCutcheon's Detergents & Emulsifiers, (1973 N. American Ed.) Allured Publishing Corp., Ridgewood, N.J. p. 129.

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