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US 11,912,959 B2Granted
Boron-free impregnating solution for a wick and boron-free wick
AssigneeSchreiber Corporation, Inc.
InventorsCarsten Staubach, Lukas Staubach, Norbert Staubach
Life of this patent
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Abstract
The invention relates to a boron-free impregnating solution for a wick, a boron-free wick, and a candle comprising a wick according to the invention. The invention further relates to a method for impregnating a wick with an impregnating solution according to the invention.
Claims13
A boron-free wick, comprising
- a) a wick material,
- the wick material being selected from cotton, rayon staple, cellulose fibers, paper yarn, linen yarn, and/or combinations thereof;
- b) at least one first flame retardant;
- and
- c) at least one first additive, the first additive being selected from the group consisting of ammonium nitrate, cerium nitrate, a polymer, and combinations thereof,
- wherein the proportion of the first additive is 0.001 to 4.0 weight % relative to the total amount of the wick;
- and
- wherein the boron-free wick further comprises a second additive, wherein the second additive is an inorganic nitrate, and the second additive is selected from the group consisting of ammonium nitrate and cerium nitrate, and wherein the second additive is different from the first additive.
5 more elements
A method for impregnating a wick with a boron-free impregnating solution for a wick, wherein the impregnating solution comprises, a solvent, at least one first flame retardant;
- and at least one first additive, the first additive being selected from the group consisting of ammonium nitrate, cerium nitrate, a polymer, and combinations thereof,
- comprising the steps
- a) passing the wick through the impregnating solution at a speed of at least 100 m/min, wherein the dwell time of the wick in the impregnating solution is at least 0.5 seconds or more;
- b) winding up the impregnated wick onto a drying device;
- wherein the boron-free impregnating solution comprises a second additive, wherein the second additive of the boron-free impregnating solution is an inorganic nitrate, and the second additive is selected from the group consisting of ammonium nitrate and cerium nitrate, and wherein the second additive is different from the first additive.
2 more elements
Dependencies are inferred from the claim text.