Methods for shaping fibrous material and treatment compositions therefor

Patent metadata

Field	Value
Publication number	US-9877559-B2
Application number	US-201414552603-A
Country	US
Kind code	B2
Filing date	Nov 25, 2014
Priority date	Dec 19, 2013
Publication date	Jan 30, 2018
Grant date	Jan 30, 2018

Abstract

The present invention relates to a method of shaping a fibrous material and treatment compositions therefor. The method comprises providing a treatment composition comprising an active agent and a photocatalyst, applying the treatment composition to the fibrous material to form a treated fibrous material, mechanically shaping the treated fibrous material, and exposing the treated fibrous material to electromagnetic radiation. The treatment composition comprises an active agent, wherein the active agent comprises a high-polarity functional group, preferably selected from the group consisting of hydroxyl groups, carboxylic acid groups, and combinations thereof; and a photocatalyst.

First claim

What is claimed is:

1. A method for shaping fibrous material comprising:
(a) providing a treatment composition, wherein the treatment composition comprises:
(i) an active agent comprising a high-polarity functional group selected from the group consisting of hydroxyl groups, carboxylic acid groups, and combinations thereof, wherein said active agent has a molecular weight of from about 50 g/mol to about 250 g/mol, and wherein said active agent comprises each of the following:
(aa) at least one carbon atom which is not functionalized with a hydroxyl and/or carboxylic acid group;
(bb) fewer than three total high-polarity functional groups selected from the group consisting of hydroxyl groups and carboxylic acid groups; and
(cc) no single carbon atom that has both a hydroxyl group and a carboxylic acid group; and

(ii) a photocatalyst;

(b) applying the treatment composition to a fibrous material to form a treated fibrous material;
(c) mechanically shaping the treated fibrous material by using an implement; and
(d) exposing the treated fibrous material to electromagnetic radiation.

2. The method of claim 1 , wherein the electromagnetic radiation has a wavelength of from about 300 nm to about 750 nm.

3. The method of claim 1 , wherein the photocatalyst is a photoacid.

4. The method of claim 2 , wherein the photoacid is a hydroxyl-substituted aromatic compound.

5. The method of claim 1 , wherein the implement comprises a light source.

6. The method of claim 5 , wherein the light source is selected from the group consisting of incandescent light, fluorescent light, LED light, laser light, solar light, and combinations thereof.

7. The method of claim 1 , wherein the treatment composition has not been exposed to electromagnetic radiation having a wavelength of less than 750 nm for a period of at least 1 second before the step of applying the treatment composition to the fibrous material.

8. The method of claim 1 , wherein the photocatalyst is selected from the group consisting of: 8-hydroxyquinoline, 8-hydroxyquinoline sulfate, 8-quinolinol-1-oxide, 5-hydroxyquinoline, 6-hydroxyquinoline, 7-hydroxyquinoline, 5-iodo-7-sulfo-8-hydroxyquinoline, 5-fluoro-8-hydroxyquinoline, 5-fluoro-7-chloro-8-hydroxyquinoline, 5-fluoro-7-bromo-8-hydroxyquinoline, 5-fluoro-7-iodo-8-hydroxyquinoline, 7-fluoro-8-hydroxyquinoline, 5-chloro-8-hydroxyquinoline, 5,7-dichloro-8-hydroxyquinoline, 5-chloro-7-brono-8-hydroxyquinoline, 5-chloro-7-iodo-8-hydroxyquinoline, 7-chloro-8-hydroxyquinoline, 5-bromo-8-hydroxyquinoline, 5-bromo-7-chloro-8-hydroxyquinoline, 5,7-dibromo-8-hydroxyquinoline, 5-bromo-7-iodo-8-hydroxyquinoline, 7-bromo-8-hydroxyquinoline, 5-iodo-8-hydroxyquinoline, 5-iodo-7-chloro-8-hydroxyquinoline, 5,7-diiodo-8-hydroxyquinoline, 7-iodo-8-hydroxyquinoline, 5-sulfonic acid-8-hydroxyquinoline, 7-sulfonic acid-8-hydroxyquinoline, 5-sulfonic acid-7-iodo-8-hydroxyquinoline, 5-thiocyano-8-hydroxyquinoline, 5-chloro-8-hydroxyquinoline, 5-bromo-8-hydroxyquinoline, 5,7-dibromo-8-hydroxyquinoline, 5-iodo-8-hydroxyquinoline, 5,7-diiodo-8-hydroxyquinoline, 7-azaindole, 7-cyano-2-naphthol, 8-cyano-2-naphthol, 5-cyano-2-naphthol, 1-hydroxy-3,6,8-pyrenetrisulfonic acid, trans-3-hydroxystilbene, 2-hydroxymethylphenol, Pelargonidin, and mixtures thereof.

9. The method of claim 1 , wherein the fibrous material is selected from the group consisting of keratin fibers, cellulosic fibers, synthetic fibers, and combinations thereof.

10. The method of claim 1 , wherein the fibrous material is keratin fibers.

11. The method of claim 1 , wherein the fibrous material is a woven or nonwoven fabric.

12. The method of claim 1 , wherein the method further comprises elevating the temperature of the treated fibrous material to a temperature of from about 40° C. to about 150° C.

13. The method of claim 1 , wherein the implement further comprises a heat source.

14. The method of claim 1 , wherein the treatment composition is substantially free of formaldehyde, derivatives of formaldehyde, formalin, and any compound that produces formaldehyde upon heating.

15. The method of claim 1 , wherein the treatment composition comprises from about 0.1% to about 99.99%, by weight of the treatment composition, of the active agent.

16. The method of claim 1 , wherein the treatment composition further comprises a carrier.

17. The method of claim 16 , wherein the carrier is water.

18. The method of claim 1 , wherein the treatment composition is a solid, and wherein the method further comprises the step of dissolving the treatment composition in a carrier.

19. The method of claim 1 , wherein the total number of carbon atoms (C t ) of the active agent and the number of carbon atoms bearing at least one high-polarity functional group (C f ) of the active agent have a ratio of C f /C t <1.

20. The method of claim 1 , wherein the active agent is selected from the group consisting of Pimelic acid, 1,4 Butanediol, 1,6 Hexanediol, 6-Amino-1-hexanol, 6-Amino caproic acid, Aminobutyric acid, Levulinic acid, and mixtures thereof.

21. The method of claim 1 , wherein the treatment composition is packaged in an opaque package.

Assignees

• Procter & Gamble
• The Procter & Gamble Comany

Inventors

• Adams Jacob Robert
• Mueller William Richard
• Reed Jamie Angel
• Samuel Stevan A
• Sawin Philip Andrew
• Watson Randall Alan
• Washington Randy Purnell
• Willey Alan David

Classifications

• A61K2800/81

  Preparation or application process involves irradiation · CPC title

• A61K8/4926

  having six membered rings · CPC title

• A45D7/06 Primary

  combined chemical and thermal · CPC title

• A61K8/365

  Hydroxycarboxylic acids; Ketocarboxylic acids · CPC title

• D06M10/08

  Organic compounds · CPC title