US4567040A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilized hair spray composition and process
Assignee: P&G Hair Care Holding Inc
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Filing: 1985-01-30
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Granted: 1986-01-28
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Expires: 2005-01-30
Abstract
Abstract A hair spray composition comprising an alcoholic solution of partially neutralized vinyl/maleic copolymer and an alkali metal borohydride or oxidizer stabilized against discoloration.
Inventors
- 👤 Joseph J. Varco
- 👤 Carl E. Williams
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:53
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/18; A61K8/72; A61K8/81; A61K8/8164; A61K8/19; A61K8/22; A61Q; A61Q5/00; A61Q5/06; Y; Y10; Y10S; Y10S424/00; Y10S424/01
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
41 words
A hair spray composition which comprises an alcoholic solution of partially neutralized vinyl/maleic copolymer and an amount of an alkali metal borohydride, or an amount of an oxidizer, either of the aforesaid amounts being effective to stabilize said composition against discoloration.
Claim 2
Dependent Claim
41 words
A hair spray composition which comprises an alcoholic solution of partially neutralized vinyl/maleic copolymer and an amount of an alkali metal borohydride, or an amount of an oxidizer, either of the aforesaid amounts being effective to stabilize said composition against discoloration.
Claim 3
Dependent Claim
28 words
The hair spray composition of claim 1, wherein said alkali metal borohydride is sodium borohydride and said effective amount is from about 0.01% to about 0.05% by weight.
Claim 4
Dependent Claim
24 words
The hair spray composition of claim 1, wherein said oxidizer comprises hydrogen peroxide and said effective amount is from about 0.4% to about 1.5%.
Claim 5
Dependent Claim
33 words
The hair spray composition of claim 1, 2 or 3 wherein said vinyl/maleic copolymer is constituted of recurring units having the formula ##STR3## before partial neutralization and which is partially neutralized with aminomethylpropanol.
Claim 6
Dependent Claim
42 words
A process for preventing the formation of color in a partially neutralized solution of a vinyl/maleic copolymer, which comprises adding to the solution an effective amount of an alkali metal borohydride or an oxidizer that is effective to prevent such color formation.
Claim 7
Dependent Claim
42 words
A process for preventing the formation of color in a partially neutralized solution of a vinyl/maleic copolymer, which comprises adding to the solution an effective amount of an alkali metal borohydride or an oxidizer that is effective to prevent such color formation.
Claim 8
Dependent Claim
26 words
The process of claim 5, wherein said alkali metal borohydride is sodium borohydride and said effective amount is from about 0.01% to about 0.05% by weight.
Claim 9
Dependent Claim
19 words
The process of claim 5, wherein from about 0.4% to about 1.5% hydrogen peroxide is employed as the oxidizer.
Claim 10
Dependent Claim
20 words
The process of claims 6 or 7 wherein said vinyl/maleic copolymer is constituted of recurring units having the formula ##STR4##
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-01-27 | 1989-07-29 | 1990-01-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-01-27 | 1993-07-29 | 1994-01-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-01-27 | 1997-07-29 | 1998-01-28 | $7700.00 | Window Closed / Lapsed |