Cleaning and liquid contact with solids – Processes – Using sequentially applied treating agents
Patent
1976-12-16
1977-12-27
Albrecht, Dennis L.
Cleaning and liquid contact with solids
Processes
Using sequentially applied treating agents
134 26, 134 42, 252 89R, 252135, 252173, B08B 310, B08B 1100, C11D 710, C11D 714
Patent
active
040653242
ABSTRACT:
Silicone and/or hydrophilic soft contact lenses are freed of proteinaceous and other deposits by rubbing them with a buffered, aqueous solution of a crystalline sodium silicate, and rinsing. Heavy encrustations or deposits remaining after the above treatment may be removed from the lenses by heating them in said solution, removing them and rinsing.
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Weldes, H. H., et al.: "Properties of Soluble Silicates", Reprint of article from I & EC, vol. 61, Apr. 1969, pp. 29-44.
Albrecht Dennis L.
Burton, Parsons and Company, Inc.
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