	US 12,460,154 B2
	Boron-free impregnating solution for a wick and boron-free wick
Carsten Staubach, Fulda (DE); Lukas Staubach, Fulda (DE); and Norbert Staubach, Fulda (DE)
Assigned to SCHREIBER GMBH, Fulda (DE)
Filed by SCHREIBER GMBH, Fulda (DE)
Filed on Jan. 19, 2024, as Appl. No. 18/417,685.
Application 18/417,685 is a continuation of application No. 17/608,119, granted, now 11,912,959, previously published as PCT/EP2020/062080, filed on Apr. 30, 2020.
Claims priority of application No. 19171887 (EP), filed on Apr. 30, 2019.
Prior Publication US 2024/0150673 A1, May 9, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. C11C 5/00 (2006.01); C09K 21/02 (2006.01); C09K 21/04 (2006.01); F21V 37/00 (2006.01)

CPC C11C 5/006 (2013.01) [C09K 21/02 (2013.01); C09K 21/04 (2013.01); F21V 37/002 (2013.01)]

13 Claims

1. 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 flame retardant;

c) an amount of a first additive; and

d) a second additive that is an inorganic sulfate selected from the group consisting of lithium sulfate, beryllium sulfate, sodium sulfate, ammonium sulfate, magnesium sulfate, aluminum sulfate, potassium sulfate, and calcium sulfate, wherein the proportion of inorganic sulfate is from 0.001 to 10 weight % relative to the total amount of the wick.