US 12,201,714 B2
Multicomponent pur composition
Mathias Kurt Herrlein, Darmstadt (DE); Graham Neil McKelvey, Darmstadt (DE); Matija Crne, Darmstadt (DE); Corinne Mohr, Darmstadt (DE); Simon Paul Godfrey, Darmstadt (DE); Tatjana Schaefer, Darmstadt (DE); Malte Afflerbach, Darmstadt (DE); Claus Schreiner, Bremen (DE); and Kerstin Wehnert, Bremen (DE)
Assigned to Wella International Operations Switzerland Sàrl, Petit-Lancy (CH)
Appl. No. 17/258,443
Filed by Wella International Operations Switzerland Sàrl
PCT Filed Mar. 27, 2019, PCT No. PCT/EP2019/057811
§ 371(c)(1), (2) Date Jan. 7, 2021,
PCT Pub. No. WO2020/007510, PCT Pub. Date Jan. 9, 2020.
Claims priority of provisional application 62/694,808, filed on Jul. 6, 2018.
Claims priority of provisional application 62/739,672, filed on Oct. 1, 2018.
Claims priority of provisional application 62/740,027, filed on Oct. 2, 2018.
Prior Publication US 2024/0261213 A1, Aug. 8, 2024
Int. Cl. A61Q 5/00 (2006.01); A61K 8/81 (2006.01); A61K 8/87 (2006.01); A61Q 5/06 (2006.01); D06P 1/52 (2006.01); D06P 1/54 (2006.01); D06P 5/00 (2006.01)
CPC A61K 8/87 (2013.01) [A61K 8/8147 (2013.01); A61Q 5/065 (2013.01); D06P 1/525 (2013.01); D06P 1/5285 (2013.01); D06P 1/54 (2013.01); D06P 5/002 (2013.01); A61K 2800/882 (2013.01); A61K 2800/884 (2013.01); A61K 2800/95 (2013.01)] 6 Claims
OG exemplary drawing
 
1. A method for applying a multicomponent composition to keratin material comprising:
(a) applying a third component as a pretreatment to the keratin material to form pretreated keratin material;
(b) applying first and second components sequentially or simultaneously or premixed to the pretreated keratin material; wherein:
the first component comprises an organic polymer;
the second component comprises an in situ linking material;
the third component comprises a base compound;
each of the first, second and third components comprise a medium;
one or more of the first, second and third components comprise pigment particles;
the organic polymer of the first component comprises units of a hydrophobic monomer and a hydrophilic monomer, wherein the hydrophobic monomer comprises a C1-C6 alkyl linear or branched (meth)acrylate monomer, styrene or a combination thereof wherein the styrene is present at a weight percentage amount of from none up to about 50 wt % relative to the total weight of the organic polymer; and the hydrophilic monomer comprises an olefinic acid selected from (meth)acrylic acid, and a hydroxyalkyl olefinic ester selected from hydroxymethyl or hydroxyethyl (meth)acrylate or any combination thereof,
the organic polymer of the first component has a weight average molecular weight in the range of about 2 KDa to about 100 MDa;
the acid number of the organic polymer of the first component is in a range of about 7 to about 90;
the hydroxyalkyl olefinic ester portion of the organic polymer of the first component is in a range of about 1-5 wt % relative to the total weight of the organic polymer;
the in situ linking material of the second component comprises hexamethylene diisocyanate, bis isocyanatocyclohexyl methane or uretdione hexamethylene diisocyanate;
the base compound of the third component comprises linear polyethyleneimine or branched polyethylene imine wherein the base compound has a weight average molecular weight of about 150 Da to about 1 MDa;
the molar ratio of isocyanate groups of the second component to hydroxyl groups of the first component is in a range of about 0.5:2 to 25:1.