Difluoride composition, method of preparation, and use for frosting glass
AssigneeSociete D'Exploitation De Produits Pour Les Industries Chimiques Seppic
InventorsYves Bessoles, Hugues De Roulhac, Gerard Trouve
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Abstract
Aqueous composition comprising at least one fluoride-ion-generating agent and at least one viscosity modifier, characterized in that its viscosity, measured at 25° C. using a Brookfield™ LVT viscometer fitted with a No. 1 spindle rotating at a speed of 30 revolutions per minute, is between 50 and 5000 mPa·s. Method for preparing it, dry composition and method of frosting flat glass.
Claims21
An aqueous composition comprising at least one fluoride-ion-generating agent and at least one viscosity modifier, characterized in that its viscosity, measured at 25° C. using a Brookfield™ LVT viscometer fitted with a No. 1 spindle rotating at a speed of 30 revolutions per minute, is between 50 and 5000 mPa·s.
A composition with no water, consisting, per 100% of its weight, essentially of:
- a) 0.05% to 5% by weight of at least one viscosity modifier;
- b) 20% to 99.95% by weight of at least one water-soluble difluoride compound;
- c) 0% to 79.95% by weight of a water-insoluble filler;
- and
- d) 0% to 20% of at least one water-soluble salt.
Dependencies are inferred from the claim text.