Additive for treating water used to form ice

Details Additive for treating water used to form ice Additive for treating water used to form ice

1989-09-27

1990-09-04

Tapolcai, William E.

Refrigeration

Processes

Congealing flowable material, e.g., ice making

62235, 106 13, 252 70, E01H 402

Patent

active

049533606

ABSTRACT:
The high energy cost accompanying the use of hot water in resurfacing ice rinks is reduced by use of an additive for treating water used to form ice or ice layers which comprises a surfactant, a primary alcohol and a silicone. The surfactant acts to reduce permanently the surface tension of the water while the silicone acts as a defoamer collapsing any bubbles formed on the surface and also as a lubricant when pressure is applied on the ice such as by an ice skate blade. The alcohol is believed to aid in providing a generally homogenous mixture when added to water. The composition allows the use of much cooler water, normally in the range of 45.degree. to 55.degree. F., in forming ice with favorable characteristics. The invention also encompasses novel methods of forming layers of ice using the additive.

REFERENCES:
patent: 3489596 (1970-01-01), Plump
patent: 3736172 (1973-05-01), Delano et al.
patent: 4213873 (1980-07-01), Church
patent: 4676918 (1987-06-01), Toth et al.
patent: 4728536 (1988-03-01), Barley et al.
patent: 4774112 (1988-09-01), Achtenberg et al.

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