Claims
- 1. A composition comprising a permanent structure altering lotion for hair containing a reducing agent suitable for relaxation of the hair fiber structure and a sufficient hair fiber protective and conditioning amount of an N-alkyl lactam having a 5 to 7 membered heterocyclic ring and from 8 to 22 carbon atoms in said alkyl group.
- 2. The composition of claim 1 wherein said lactam is an N-alkyl pyrrolidone.
- 3. The composition of claim 1 wherein said lotion is a permanent waving lotion.
- 4. The composition of claim 1 wherein said lotion is a permanent hair straightening lotion.
- 5. The composition of claim 1 wherein said reducing agent is selected from the group consisting essentially of a mono- or di-thioglycolate or an alkali or ammonium salt thereof; a sodium or potassium borate; and alkali sulfite; a bisulfite or an alkali or ammonium salt thereof optionally employed in admixture with urea; glyceryl monothioglycolate; thioglycolic acid; dithio glycolic acid; mercaptoethyl amine; mercaptopropionic acid; potassium or sodium hydroxide or carbonate optionally employed in admixture with guanidine and mixtures of said reducing agents.
- 6. The composition of claim 5 wherein said reducing agent is an aqueous solution of ammonium thioglycolate.
- 7. The composition of claim 5 wherein said reducing agent is an ammonium bisulfite/urea mixture.
- 8. The composition of claim 5 wherein said reducing agent is dithiodiammonium glycolate.
- 9. The composition of claim 5 wherein said reducing agent is sodium or potassium hydroxide.
- 10. The composition of claim 2 wherein said N-alkyl pyrrolidone is N-dodecyl pyrrolidone and wherein the lotion contains between about 0.75% and about 1.5% of said N-dodecyl pyrrolidone.
- 11. The composition of claim 1 wherein said lotion contains between about 0.01% and about 7.00% by weight of said N-alkyl lactam.
- 12. The composition of claim 1 wherein said lotion contains between about 0.05% and about 5.0% by weight of said N-alkyl lactam.
- 13. The composition of claim 2 wherein said composition contains said hair reducing agent, a neutralizing amount of a neutralizing agent for said reducing agent and N-alkyl pyrrolidone in a concentration sufficient to protect and condition the hair against damage.
- 14. The composition of claim 13 wherein said neutralizing agent is selected from the group consisting essentially of hydrogen peroxide; barium or calcium chloride; a sodium or potassium perborate or bromate, perbromate, or percarbonate optionally employed in admixture with guanidine and mixtures of said neutralizing agents.
- 15. The composition of claim 13 where the N-alkyl pyrrolidone comprises a portion of at least one of said reducing and neutralizing agents.
- 16. A process for permanently altering the configuration of hair without damage which includes the steps of
- (a) imparting the desired configuration to the hair
- (b) treating the hair with an aqueous alkaline solution containing a keratin reducing agent sufficient to relax the hair fiber structure and an N-alkyl lactam having a 5 to 7 membered heterocyclic ring and 8 to 22 carbon atoms in said alkyl group in a mole ratio of from about 3:1 to about 30:1 reducing agent to lactam at a pH of from about 7 to about 10.5 for a period sufficient to obtain a permanent hair configuration alteration without hair damage and
- (c) fixing the hair fiber structure in said altered configuration.
- 17. The process of claim 16 wherein said reducing agent is selected from the group consisting essentially of a mono- or di-thioglycolate; or an alkali or ammonium salt thereof; a sodium or potassium borate; an alkali sulfite; a bisulfite or an alkali or ammonium salt thereof optionally employed in admixture with urea; glyceryl monothioglycolate; thioglycolic acid; dithioglycolic acid; mercaptoethyl amine; mercaptopropionic acid; potassium or sodium hydroxide or carbonate optionally employed in admixture with guanidine and mixtures of said reducing agents.
- 18. The process of claim 16 wherein said N-alkyl lactam is an N-alkyl pyrrolidone having from 12 to 26 carbon atoms.
- 19. The process of claim 16 which is a permanent hair curling process.
- 20. The process of claim 16 which is a permanent hair straightening process.
- 21. The process of claim 18 wherein said fixing step is effected by adding a neutralizing amount of a neutralizing agent for said reducing agent and wherein said N-alkyl pyrrolidone is added to at least one of said reducing and said neutralizing agents in a concentration of between about 0.01% and about 7.00% by weight based on the total volume of the agent to which it is added.
- 22. The process of claim 21 wherein said neutralizing agent is selected from the group consisting essentially of hydrogen peroxide; barium or calcium chloride; a sodium or potassium perborate, bromate, perbromate, or percarbonate optionally employed in admixture with guanidine and mixtures of said neutralizing agents.
- 23. A method for permanently altering the configuration of hair without damage including the steps of
- (a) imparting the desired configuration to the hair
- (b) treating the hair with an aqueous alkaline solution containing a mercaptan keratin reducing agent and an N-alkyl-pyrrolidone having from 12 to 26 carbon atoms in a mole ratio of from about 3:1 to about 30:1 reducing agent to N-alkyl pyrrolidone at a pH of from about 7 to about 10.5 for a period sufficient to obtain a permanent hair configuration alteration without damage to the hair and
- (c) fixing said altered configuration.
- 24. The process of claim 23 wherein the mole ratio of reducing agent to N-alkyl pyrrolidone is between about 8:1 and about 20:1.
Parent Case Info
This application is a continuation-in-part of U.S. patent application Ser. No. 879,776 filed June 27, 1987, now abandoned.
US Referenced Citations (3)
Number |
Name |
Date |
Kind |
3988318 |
Copes et al. |
Oct 1976 |
|
3988350 |
Copes et al. |
Oct 1976 |
|
4557934 |
Cooper |
Dec 1985 |
|
Non-Patent Literature Citations (1)
Entry |
Zienty and Steahly, "N-Substituted 2-Pyrrolidones", J. of the Amer. Chem. Soc., vol. 80, Mar. 1947, pp. 715-717. |
Continuation in Parts (1)
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Number |
Date |
Country |
Parent |
879776 |
Jun 1986 |
|