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US4560554A Expired / Lapsed US ⏱️ 0.0 years remaining

Neutralizer for cold waving

Assignee: Shiseido Co Ltd
•
Filing: 1984-04-03
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Granted: 1985-12-24
•
Expires: 2004-04-03
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Abstract

Abstract A neutralizer for cold waving comprising: (i) an oxidizing agent and (ii) at least one compound selected from the group consisting of the compounds having the general formula (I) to (XII), as follows. ##STR1## wherein --R 1 and --R 2 are independently --CH 3 , --CH 2 OH, --CH 2 Cl, --CH 2 Br, --CH 2 I, ##STR2## --CH 2 COOR 6 , --CH 2 CH 2 COOR 6 , --CH 2 COR 6 , --COR 6 , ##STR3## --R 3 , --R 4 , and --R 5 are independently --H, --COR 6 , --COOR 6 , --Cl, --Br, --I, --NO 2 , --OCH 3 , --OH, and --COOH; --R 6 is hydrogen atom, or an alkyl or alkenyl group having up to 3 carbon atoms; --R 7 is --H, --OH, or --CH 3 ; and --R 8 is --H, --COCH(CH 3 ) 2 , --COCH═C(CH 3 ) 2 , --COCH 3 , ##STR4## This neutralizer generates no substantial mercaptan or other unpleasant odor when applied to the hair and forms an elastic and shiny permanent wave.

Inventors

  • 👤 Sanae Kubo
  • 👤 Emiko Kawada

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-10-30 23:07
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/33; A61K8/35; A61K8/355; A61Q; A61Q5/00; A61Q5/04

Claims Analysis

Total Claims: 4
Claim 1
Independent Claim 59 words
In an aqueous neutralizer for cold waving comprising 0.5% to 20% by weight of (i) an oxidizing agent, the improvement which comprises incorporating, into the neutralizer, 0.0001% to 5.0% by weight of (ii) at least one compound selected from the group consisting of dibenzyl ketone, p-diacetyl benzene, 2-hydroxy-1,4-naphthoquinone, hinokitiol, shikonin, benzyl acetophenone, p-nitroacetophenone, p-hydroxyacetophenone, benzophenone, 2,5-dihydroxy-1,4-benzoquinone, 2-cyclohexenone, and ethyllevulinate.
Claim 2
Dependent Claim 59 words
In an aqueous neutralizer for cold waving comprising 0.5% to 20% by weight of (i) an oxidizing agent, the improvement which comprises incorporating, into the neutralizer, 0.0001% to 5.0% by weight of (ii) at least one compound selected from the group consisting of dibenzyl ketone, p-diacetyl benzene, 2-hydroxy-1,4-naphthoquinone, hinokitiol, shikonin, benzyl acetophenone, p-nitroacetophenone, p-hydroxyacetophenone, benzophenone, 2,5-dihydroxy-1,4-benzoquinone, 2-cyclohexenone, and ethyllevulinate.
Claim 3
Dependent Claim 34 words
An aqueous neutralizer as claimed in claim 1, wherein the oxidizing agent is at least one member selected from the group consisting of sodium bromate, hydrogen peroxide, postassium bromate, sodium percarbonate, and sodium perborate.
Claim 4
Dependent Claim 33 words
In the waving of hair wherein a waving solution is applied to the hair followed by a neutralizer, the improvement which comprises employing as the neutralizer an aqueous neutralizer according to claim 1.

References Cited (Backward Citations)

US3988110A Cited
US4358286A Cited
US4424379A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1988-12-23 1989-06-24 1989-12-24 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1992-12-23 1993-06-24 1993-12-24 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1996-12-23 1997-06-24 1997-12-24 $7700.00 Window Closed / Lapsed

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