IP Library › Granted Patent US 12,214,066
Granted Patent B2
US 12,214,066 · App. 16/603,280 · Granted Feb 4, 2025

Hair care compositions

Inventors: Oded Shoseyov (Shoham, IL); Roni Shalev (Moshav Timorim, IL); Sigal Baruch-Sharon (Ness-Ziona, IL); Tal Ben Shalom (Beer-Yaacov, IL); Liron Nuttman-Nesial (Rechovot, IL)
Assignees: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.; SMART RESILIN LTD.
A61K8/64A61K8/731A61Q5/06
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Quick Facts
Patent No.
US 12,214,066
App. No.
16/603,280
Granted
Feb 4, 2025
Kind
B2
Abstract

Provided are methods, compositions and kits employing cellulose nanocrystals for hair-straightening treatment. Also provided are methods, compositions and kits employing a resilin, for hair-straightening treatment and/or for maintenance of straightened hair following a hair-straightening treatment.

Claims (13)

1. A method of straightening hair, the method comprising:

applying to the hair cysteine, sodium metabisulfite or a combination thereof to thereby obtain cleaved disulfide bonds in the hair;

applying arginine or chitosan to the hair, having cleaved disulfide bonds and heat treating the hair;

subsequently to heat treating the hair, applying to the hair a formulation containing cellulose nanocrystals (CNC) bonded to cellulose binding domain (CBD)-modified resilin in a non-covalent interaction; and

subsequent to applying the formulation containing the CNC, applying heat and pressure to the hair, to cause hair straightening without causing damage to hair,

thereby straightening the hair.

2. The method of claim 1 , further comprising contacting said hair, having been treated with said formulation containing said CNC bonded to CBD-modified resilin in a non-covalent interaction, with a cross-linking agent capable of cross-linking cellulose nanocrystals.

3. The method of claim 1 , comprising applying a further amount of CBD-modified resilin to the hair subsequently to the hair straightening.

4. The method of claim 3 , wherein said applying the further amount of CBD-modified resilin is effected at least one day subsequently to the hair straightening.

5. The method of claim 4 , wherein said applying the further amount of CBD-modified resilin is effected at least one week after the hair straightening.

6. The method of claim 4 , wherein said applying the further amount of CBD-modified resilin is effected during a time period in a range of from one week to two years after hair straightening.

7. The method of claim 3 , wherein said applying the further amount of CBD-modified resilin is effected on at least two different days.

8. The method of claim 7 , wherein said applying the further amount of CBD-modified resilin is effected on at least 5 different days.

Assignments (2)
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 27, 2019
From: NUTTMAN-NESIAL, LIRON
To: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.; SMART RESILIN LTD.
Reel/Frame 051127/0733 →
ASSIGNMENT OF ASSIGNOR'S INTEREST Recorded Nov 27, 2019
From: SHOSEYOV, ODED; SHALEV, RONI; BARUCH-SHARON, SIGAL; BEN SHALOM, TAL
To: YISSUM RESEARCH DEVELOPMENT COMPANY OF THE HEBREW UNIVERSITY OF JERUSALEM LTD.
Reel/Frame 051142/0134 →
Continuity (2)
Provisional Application 62482910 · Apr 7, 2017
Related Publication 20200121581A1 · Apr 23, 2020
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