Semi-Permanent Hair Straightening Composition And Method

US2016296449A1 · US · A1

Patent metadata
FieldValue
Publication numberUS-2016296449-A1
Application numberUS-201415035049-A
CountryUS
Kind codeA1
Filing dateNov 6, 2014
Priority dateNov 8, 2013
Publication dateOct 13, 2016
Grant date

How to read this patent

A practical reading order for non-experts. Skip the full description unless you need deep technical detail.

  1. Title

    What the patent document calls the invention.

  2. Abstract

    A short plain-language summary of the technical disclosure.

  3. Assignees and inventors

    Who owns or filed the patent and who is credited as inventor.

  4. Key dates

    Filing, priority, publication, and grant dates set the timeline.

  5. First independent claim

    The legal scope of protection — read this for what is actually claimed.

  6. CPC / IPC classifications

    Technology tags used to group this patent with similar filings.

  7. Citations and related patents

    Prior art links and similar publications in this corpus.

Abstract

Official abstract text for this publication.

A composition and a process for straightening hair are disclosed. The process includes coating keratin fibers with a composition comprising a thermally-activated agent and a guanidine moiety containing adjuvant compound and contacting the coated keratin fibers with a heating device at a temperature of at least 185 C for sufficient time to modify the keratin fibers.

First claim

Opening claim text (preview).

1 . A composition for straightening or relaxing hair comprising a thermally-activated composition, said composition comprising: (a) ethylene carbonate as the hair straightening agent; and (b) at least one hair straightening adjuvant compound selected from a guanidine derivative and/or the organic and inorganic salts thereof selected from a guanidine moiety containing compound represented by the radical: wherein the composition is free of all compounds which contain thiol groups. 2 . (canceled) 3 . A composition of claim 1 , wherein said guanidine moiety containing compound is represented by Formula (II): wherein R 1 , R 2 , R 3 , R 4 and R 5 independently represent a hydrogen atom; linear or branched C 1 to C 8 alkyl; linear or branched C 2 to C 4 alkenyl; phenyl; benzyl; wherein said linear or branched C 1 -C 4 alkyl said linear or branched C 2 to C 4 alkenyl, said phenyl and said benzyl groups can optionally be substituted with one or two substituents selected from halo, amino, dimethylamino, carboxyl, hydroxyl, methyl, methoxy, carboxamide, N-methylcarboxamide and —SO 3 H; and any two of R 1 , R 2 , R 3 , R 4 and R 5 together with the nitrogen atom(s) to which they are attached form a 4 to 9 membered monocyclic or bicyclic ring containing 2 to 4 carbon atoms, optionally containing one or two (ring) heteroatom(s) selected from C(O), N, O and S, and said carbon atom(s) being optionally substituted with one or two substituent(s) selected from hydroxyl and amino; when R 1 represents a hydrogen atom, —C(O)OC(CH 3 ) 3 , or the radical R 2 , R 3 , R 4 , and R 5 can independently represent a hydrogen atom, a radical selected from amino, nitro; cyano; acetyl; chloroacetyl; carboxyl, carboxamide; N-methylcarboxamide; methoxy; ethoxy; 1,2,4-triazolyl; cyclopentyl; cyclohexyl; —C(O)CH═CHC(O)OH; —CH 2 (CO)OCH 3 ; —CH 2 C(O)OCH 2 CH 3 ; —C(O)OC(CH 3 ) 3 ; thiazolidonyl; benzimidazolyl; benzoxazolyl; benzothiazolyl; —C(═NH)NH 2 ; —C(═NH)—NR 6 R 7 where R 6 and R 7 independently represent a hydrogen atom or a linear or branched C 1 -C 4 alkyl radical, optionally substituted with one or 2 substituents selected from hydroxyl, amino, dimethylamino, carboxyl and carboxamide; or where R 8 and R 9 independently represent halo, methyl, methoxy, trifluoromethyl, and trifluoromethoxy; and optionally (c) at least one cosmetically acceptable excipient; and wherein said hair straightening agent is present in an amount ranging from about 10 to about 70 wt. % (based on the total weight of the composition), and the ratio of said hair straightening agent to said adjuvant ranges from about 1.5 to 1 to about 10:1 by weight. 4 . A composition of claim 1 , wherein said hair straightening agent is selected from a mixture of ethylene carbonate and propylene carbonate. 5 . (canceled) 6 . A composition of claim 3 , wherein in said Formula (II) R 1 , R 2 and R 3 represent a hydrogen atom; and R 4 and R 5 taken together with the nitrogen atom to which they are attached, represents a pyrrolidine, piperidine, pyrazole, thiazolidone, benzimidazole, benzoxazole, benzothiazole, or 1,2,4-triazole ring, said rings being optionally substituted with 1 or 2 substituents selected from hydroxyl, amino and carboxyl groups. 7 . A composition of claim 3 , wherein in Formula (II) R 1 and R 2 represent a hydrogen atom, and R 5 represents a hydrogen atom or methyl, R 3 and R 4 taken together can represent a divalent radical selected from —CH 2 —CH 2 — and —CH 2 —O— and when taken together with the nitrogen atoms to which they are attached represent a 5 membered ring. 8 . A composition of claim 3 , wherein said adjuvant is selected from at least one compound represented by the Formula (IIA): where R 5 is as defined above; R 8 and R 9 are optionally present, and when present one or two of R 8 and R 9 can be bonded to the same or different ring carbon atom and independently represent C 1 -C 5 alkyl, hydroxyl, amino, dimethylamino, carboxyl, carboxamide, N-methylcarboxamide and SO 3 H; n and n 1 independently represent 0, 1 or 2. 9 . A composition of claim 3 , wherein said adjuvant is selected from at least one compound represented by Formulas (IIB), (IIC), (IID), (IIE) and (IIF) as follows: where R 5 , R 8 and R 9 are as previously defined. 10 . A composition of claim 9 , wherein R 5 represents a hydrogen atom and R 8 and R 9 are not present. 11 . A composition of claim 1 , wherein said adjuvant is selected from guanidine; guanidine hydrochloride; guanidine acetate; guanidine sulfate; guanidine carbonate; guanidine bicarbonate; guanidine nitrate; guanidine phosphate; guanidine sulfamate; aminoguanidine; aminoguanidine hydrochloride; aminoguanidine nitrate; aminoguanidine sulfate; aminoguanidine bicarbonate; 1,3-diaminoguanidine hydrochloride; cyanoguanidine; nitroguanidine; 1-methyl-3-nitroguanidine; 1-acetylguanidine; chloroacetylguanidine hydrochloride; guanidine acetic acid guanylurea; guanylurea phosphate; phenylguanidine carbonate; phenylguanidine bicarbonate; 1,3-diphenylguanidine; 1,3-di-o-tolylguanidine; methyl 4-guanidino-2-methoxybenzoate hydrochloride; 1-methylguanidine hydrochloride; 1,1-dimethylguanidine hydrochloride; 1,1-dimethylguanidine sulfate; 1-ethylguanidine hydrochloride; 1-ethylguanidine sulfate; 1-octylguanidine hemisulfate; 1,1-diethylguanidine hydrochloride; N-tert-butoxycarbonylguanidine (N-Boc guanidine) 1,3-bis(tert-butoxycarbonyl)guanidine (Di-Boc guanidine); carbamic acid; N,N-[[(1,1-dimethylethoxy)carbonyl]carbonimidoyl]bis-; C,C′-bis(1,1-dimethylethyl) ester (N,N′,N″-Tri-Boc guanidine); creatine; creatine monohydrate; creatinine; creatinine hydrochloride; creatine ethyl ester; agmatine; agmatine sulfate; guanidineacetic acid; guanidinosuccinic acid; 3-guanidinopropionic acid; 4-guanidinobutyric acid; 5-guanidinovaleric acid; 4-guanidine benzoic acid; 4-guanidine benzoic acid hydrochloride; 4-guanidino-2-methoxybenzoic acid; beta-N-methylguanidinopropionic acid; N-methylguanidinopropionic acid; N-(2-hydroxyethyl)guanidine; N-(3-hydroxypropyl)guanidine; biguanide hydrochloride; N-methylbiguanide hydrochloride; N-ethylbiguanide hydrochloride; N-propylbiguanide hydrochloride; N-butylbiguanide hydrochloride; 1-o-tolylbiguanide; 1,1-dimethylbiguanide hydrochloride; 1-(3-chloro-4-fluorophenyl)biguanide hydrochloride; 1-(2-chlorophenyl)biguanide hydrochloride; 1-(4-chlorophenyl)biguanide hydrochloride; 1-(2-fluorophenyl)biguanide hydrochloride; 1-(3-fluorophenyl)biguanide hydrochloride; 1-(4-fluorophenyl)biguanide hydrochloride; 1-(2,3-dichlorophenyl)biguanide hydrochloride; 1-(2,4-dichlorophenyl)biguanide hydrochloride; 1-(2,5-dichlorophenyl)biguanide hydrochloride; 1-(2,6-dichlorophenyl)biguanide hydrochloride; 1-(3,4-dichlorophenyl)biguanide hydrochloride; 1-(3,5-dichlorophenyl)biguanide hydrochloride; 1-(2,4-difluorophenyl)biguanide hydrochloride; 1-(2,5-difluorophenyl)biguanide hydrochloride; 1-[4-(trifluoromethyl)phenyl]biguanide hydrochloride; 1-[3,5-di-(trifluoromethyl)phenyl]biguanide hydrochloride; 1-[4-(trifluorome

Assignees

Inventors

Classifications

  • A61K8/4973Primary

    with oxygen as the only hetero atom · CPC title

  • Mixing prior to application · CPC title

  • Preparations for permanent waving or straightening the hair · CPC title

  • Preparations for styling the hair, e.g. by temporary shaping or colouring · CPC title

  • Characterized by the absence of a particular group of ingredients · CPC title

Patent family

Related publications grouped by family.

External sources

Frequently asked questions

Answers are generated from the same data shown on this page.

What does patent US2016296449A1 cover?
A composition and a process for straightening hair are disclosed. The process includes coating keratin fibers with a composition comprising a thermally-activated agent and a guanidine moiety containing adjuvant compound and contacting the coated keratin fibers with a heating device at a temperature of at least 185 C for sufficient time to modify the keratin fibers.
Who is the assignee on this patent?
Lubrizol Advanced Mat Inc
What technology area does this patent fall under?
Primary CPC classification A61K8/4973. Mapped technology areas include Human Necessities.
When was this patent published?
Publication date Thu Oct 13 2016 00:00:00 GMT+0000 (Coordinated Universal Time) (A1). Legal status and post-grant events are not shown on this page.
What related patents are in patentsdb?
We list 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).