US4303085A
Expired / Lapsed
US
⏱️ 0.0 years remaining
System and method for hair treatment
Assignee: Carson Products Co
•
Filing: 1980-02-11
•
Granted: 1981-12-01
•
Expires: 2000-02-11
Abstract
Abstract Systems and methods for curling hair and for straightening hair are disclosed, wherein the systems contain, as a principal active ingredients thereof, guanidine hydroxide, together with an ion exchange resin. The guanidine hydroxide is prepared by mixing together in an aqueous medium at least one water-soluble guanidine salt and at least one particulate, strong-base, quaternary ammonium, hydroxide-form ion-exchange resin. After the mixed components have had a chance to undergo ion exchange, the composition is applied to hair which is maintained in a desired configuration, and after the composition has been in contact with the hair for an effective time the composition is removed from the hair, thereby causing the hair to maintain such desired configuration.
Inventors
- 👤 Mario de la Guardia
- 👤 Donald R. Cowsar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:42
CPC Classifications
A; A61; A61Q; A61Q5/00; A61Q5/04; A61K; A61K8/00; A61K8/18; A61K8/30; A61K8/40; A61K8/43; A61Q5/06
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
129 words
A method of treating hair to cause the hair to maintain a desired configuration, said method comprising contacting the hair while in said desired configuration with an effective amount of an aqueous composition comprising the product formed by mixing in an aqueous medium at least one water-soluble quanidine salt in solution in said aqueous medium in an amount of greater than 0.25 molar in quanidine and an effective amount of at least one particulate, strong-base, quaternary ammonium, hydroxide-form ion-exchange resin, wherein said resin has an affinity for the anion of said quanidine salt which is at least equal to the affinity of the resin for the hydroxyl ion, and removing said composition from the hair after said composition has been in contact with the hair for an effective time.
Claim 2
Independent Claim
129 words
A method of treating hair to cause the hair to maintain a desired configuration, said method comprising contacting the hair while in said desired configuration with an effective amount of an aqueous composition comprising the product formed by mixing in an aqueous medium at least one water-soluble quanidine salt in solution in said aqueous medium in an amount of greater than 0.25 molar in quanidine and an effective amount of at least one particulate, strong-base, quaternary ammonium, hydroxide-form ion-exchange resin, wherein said resin has an affinity for the anion of said quanidine salt which is at least equal to the affinity of the resin for the hydroxyl ion, and removing said composition from the hair after said composition has been in contact with the hair for an effective time.
Claim 3
Dependent Claim
13 words
Method of claim 1, wherein said ion-exchange resin is in finely divided form.
Claim 4
Dependent Claim
27 words
Method of claim 1, wherein said salt is selected from the group consisting of guanidine sulfate, guanidine hydrochloride, guanidine nitrate, guanidine tartrate, guanidine sulfite and guanidine oxolate.
Claim 5
Dependent Claim
25 words
Method of claim 1, wherein said guanidine salt and said ion-exchange resin are mixed together at a temperature of about 5° to about 95° C.
Claim 6
Dependent Claim
35 words
Method of claim 1, wherein said desired configuration is a straightened configuration, and the hair is in the straightened configuration at least during a portion of the time it is contacted by said aqueous composition.
Claim 7
Dependent Claim
46 words
Method of claim 1, wherein said guanidine salt is selected from the group consisting of guanidine sulfate, carbonate, hydrochloride, nitrate, sulfite, phosphate, fluoride, oxalate, thioglycolate and alginate and guanidine carboxylic acid salts of alkane and alkene carboxylic acids having from 2 to about 20 carbon atoms.
Claim 8
Dependent Claim
16 words
Method of claim 2, wherein the resin has a particle size of less than 400 mesh.
Claim 9
Independent Claim
85 words
A system for treating hair to cause the hair to maintain a desired configuration, said system comprising an aqueous medium containing a hair treating-effective amount of guanidine hydroxide and at least one particulate, strong-base, quaternary ammonium ion-exchange resin having bound thereto at least a stoichiometric amount, based on the amount of said guanidine hydroxide, of an anion which when combined with the guanidine ion produces a water-soluble salt, said resin having an affinity for said anion at least as great as for the hydroxyl ion.
Claim 10
Independent Claim
85 words
A system for treating hair to cause the hair to maintain a desired configuration, said system comprising an aqueous medium containing a hair treating-effective amount of guanidine hydroxide and at least one particulate, strong-base, quaternary ammonium ion-exchange resin having bound thereto at least a stoichiometric amount, based on the amount of said guanidine hydroxide, of an anion which when combined with the guanidine ion produces a water-soluble salt, said resin having an affinity for said anion at least as great as for the hydroxyl ion.
Claim 11
Dependent Claim
21 words
System of claim 8, wherein said system is suitable for straightening hair to cause the hair to maintain a straightened configuration.
Claim 12
Dependent Claim
16 words
System of claim 8, wherein said resin has a particle size of less than 400 mesh.
Claim 13
Dependent Claim
22 words
System of claim 8, wherein said anion is selected from the group consisting of sulfate, nitrate, tartrate, oxolate, hydrochloride and sulfite anions.
Claim 14
Independent Claim
140 words
A method of treating hair to cause the hair to maintain a desired configuration, said method comprising contacting the hair while in said desired configuration with an effective amount of an aqueous composition comprising the product formed by mixing in an aqueous medium at least one water-soluble guanidine salt in solution in said aqueous medium in an amount of greater than 0.25 molar in guanidine and an effective amount of at least one particulate, strongbase, quaternary ammonium, hydroxide-form ion-exchange resin, wherein said resin has a salt splitting capacity of at least about 3.0 meq/g. and an affinity for the anion of said guanidine salt which is at least equal to the affinity of the resin for the hydroxyl ion, and removing said composition from the hair after said composition has been in contact with the hair for an effective time.
Claim 15
Independent Claim
140 words
A method of treating hair to cause the hair to maintain a desired configuration, said method comprising contacting the hair while in said desired configuration with an effective amount of an aqueous composition comprising the product formed by mixing in an aqueous medium at least one water-soluble guanidine salt in solution in said aqueous medium in an amount of greater than 0.25 molar in guanidine and an effective amount of at least one particulate, strongbase, quaternary ammonium, hydroxide-form ion-exchange resin, wherein said resin has a salt splitting capacity of at least about 3.0 meq/g. and an affinity for the anion of said guanidine salt which is at least equal to the affinity of the resin for the hydroxyl ion, and removing said composition from the hair after said composition has been in contact with the hair for an effective time.
Claim 16
Dependent Claim
15 words
Method of claim 12, wherein said salt splitting capacity is at least about 3.5 meq/g.
Claim 17
Dependent Claim
20 words
Method of claim 13, wherein at least 40 grams of resin are used to treat each adult head of hair.
Claim 18
Dependent Claim
20 words
Method of claim 14, wherein at least 50 grams of said resin are used for each adult head of hair.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |