US 11,745,529 B2
Method for producing water-insoluble quantum dot patterns
Roger Bollstrom, Zofingen (CH); and Jamal Ftouni, Zofingen (CH)
Assigned to OMYA INTERNATIONAL AG, Oftringen (CH)
Appl. No. 16/614,355
Filed by OMYA INTERNATIONAL AG, Oftringen (CH)
PCT Filed May 18, 2018, PCT No. PCT/EP2018/063073
§ 371(c)(1), (2) Date Nov. 16, 2019,
PCT Pub. No. WO2018/215333, PCT Pub. Date Nov. 29, 2018.
Claims priority of provisional application 62/512,201, filed on May 30, 2017.
Claims priority of application No. 17172598 (EP), filed on May 23, 2017.
Prior Publication US 2020/0198384 A1, Jun. 25, 2020
Int. Cl. B41M 3/06 (2006.01); B41M 3/00 (2006.01); B41M 3/14 (2006.01); C09D 11/322 (2014.01); C09D 11/38 (2014.01); C09D 11/54 (2014.01); B05D 3/00 (2006.01); B05D 5/06 (2006.01); B05D 1/26 (2006.01); B05D 1/18 (2006.01); B05D 1/02 (2006.01); B05D 1/30 (2006.01); B05D 1/00 (2006.01); B05D 3/02 (2006.01); B05D 1/28 (2006.01)
CPC B41M 3/006 (2013.01) [B41M 3/001 (2013.01); B41M 3/142 (2013.01); C09D 11/322 (2013.01); C09D 11/38 (2013.01); C09D 11/54 (2013.01); B05D 1/002 (2013.01); B05D 1/02 (2013.01); B05D 1/18 (2013.01); B05D 1/26 (2013.01); B05D 1/28 (2013.01); B05D 1/30 (2013.01); B05D 3/007 (2013.01); B05D 3/0254 (2013.01); B05D 5/06 (2013.01); B05D 5/065 (2013.01); B41M 3/14 (2013.01); B41M 3/144 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method for producing a water-insoluble pattern on and/or within a substrate, the method comprising the following steps:
(a) providing a substrate;
(b) providing a deliquescent salt comprising a cation;
(c) providing quantum dots;
(d) providing an acid or a salt thereof comprising said anion, wherein the acid is a Brønsted-Lowry acid; and
(e) depositing the deliquescent salt provided in step (b), the quantum dots provided in step (c) and the acid or salt thereof provided in step (d) onto at least one surface region of the substrate provided in step (a) wherein the deliquescent salt, the quantum dots and the acid or salt thereof are at least partially contacted to form at least one water-insoluble pattern on said substrate, within said substrate, or both on and within said substrate,
wherein (i) the deliquescent salt and the quantum dots are deposited simultaneously or (ii) the deliquescent salt and the quantum dots are deposited consecutively in any order.