Antifreeze composition and method

Details Antifreeze composition and method Antifreeze composition and method

2007-07-24

2007-07-24

Green, Anthony J. (Department: 1755)

Compositions

Frost-preventing, ice-thawing, thermostatic, thermophoric,...

C252S071000, C252S073000, C062S080000, C062S081000

Reexamination Certificate

active

11147947

ABSTRACT:
An antifreeze composition and method of use provides safety and protection for potable water systems in RVs, vacation homes, swimming pools and raw water cooled marine engines against freeze damage. The antifreeze composition includes propylene glycol, a sorbitol surfactant having a high Hydrophilic Lipophilic Balance (HLB) number and water. The preferred sorbitol surfactant consists of food grade polyoxyethylene (20) sorbitan monooleate. By directing the antifreeze composition into these water systems, freeze damage is prevented even when the temperature drops to extremely low levels.

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One page print out of a webpage from sci-toys.com titled: “Ingredients—Polysorbate 80”; undated.
One page titled: “Chemical and physical properties: Emulsifiers”; undated.
One page titled: “Product Information Bulletin” of Uniqema on “Tween 80”; dated Apr. 1999.
Two pages; titled: “Tween series Polyoxyethylene derivatives of sorbitan esters” of Uniqema; dated 2004.
One page titled: “Certificate of Analysis” of Uniqema on the product “Tween 80”; dated Jul. 14, 2004.
Eight pages titled: “Material Safety Data Sheet” on the product Tween 80 of Uniqema; revision date of Jan. 17, 2001.

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