US4056612A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Air freshener gels
Assignee: Stauffer Chemical Co
•
Filing: 1975-11-26
•
Granted: 1977-11-01
•
Expires: 1995-11-26
Abstract
Abstract An air freshener gel consisting essentially of a novel gelling agent and an aqueous medium containing a volatile air freshener component. The novel gelling agent comprises carrageenan, locut bean gum, and a water soluble ammonium salt having a pH greater than about 5.0. The carrageenan contains at least 40% by weight of the carrageenan, kappa carrageenan. The improved air freshener gels exhibit practically no syneresis, improved water gel strength, and water viscosity.
Inventors
- 👤 Chii-Fa Lin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 19:32
CPC Classifications
A; A61; A61L; A61L9/00; A61L9/015; A61L9/04; A61L9/048
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
122 words
In an air freshener gel consisting essentially of about 1.5 to 4% of a gelling agent, and about 98.5 to 96% of an aqueous medium containing a volatile air freshener component; the improvement which comprises a gelling agent comprising: a. from about 0.6 to about 2% of a carrageenan of which at least 40% by weight is the kappa fraction, b. from about 0.2 to about 1.0% of locust bean gum; and c. from about 0.05 to about 1.0% of a water soluble ammonium salt having a pH greater than about 5.0 selected from the group consisting of ammonium chloride, ammonium sulfate, ammonium acetate, ammonium phosphate (dibasic) and mixtures thereof, wherein said percent is percent by weight of said air freshener gel.
Claim 2
Dependent Claim
122 words
In an air freshener gel consisting essentially of about 1.5 to 4% of a gelling agent, and about 98.5 to 96% of an aqueous medium containing a volatile air freshener component; the improvement which comprises a gelling agent comprising: a. from about 0.6 to about 2% of a carrageenan of which at least 40% by weight is the kappa fraction, b. from about 0.2 to about 1.0% of locust bean gum; and c. from about 0.05 to about 1.0% of a water soluble ammonium salt having a pH greater than about 5.0 selected from the group consisting of ammonium chloride, ammonium sulfate, ammonium acetate, ammonium phosphate (dibasic) and mixtures thereof, wherein said percent is percent by weight of said air freshener gel.
Claim 3
Dependent Claim
54 words
The gelling agent of claim 1 wherein said carrageenan containing at least 40% by weight of the kappa fraction is obtained from extracts and combinations of extracts from seaweed of the class Rhodophyceae, sub-class Florideae, order Gigartinales, and family selected from the group consisting of Gigartinaceae, Solieriaceae, Hypneaceae, Furcellariaceae and combinations of said seaweed.
Claim 4
Dependent Claim
52 words
The gelling agent of claim 1 wherein said carrageenan containing at least 40% by weight of the kappa fraction is obtained from extracts and combinations of extracts from seaweed of the class Rhodophyceae of the genera selected from the group consisting of Gigartina, Chondrus, Eucheuma, Hypnea, Furcellaria, and combinations of said seaweed.
Claim 5
Dependent Claim
59 words
The gelling agent of claim 1 wherein said carrageenan containing at least 40% by weight of the kappa fraction is obtained from extracts and combinations of extracts from seaweed of the class Rhodophyceae of the species selected from the group consisting of Gigartina stellata, Chondrus crispus, Chondrus ocellatus, Eucheuma cottonii, Hypnea musciformis, Furcellaria fastigiata and combinations of said seaweed.
Claim 6
Dependent Claim
12 words
The gelling agent of claim 4 wherein said specie is Chondrus crispus.
Claim 7
Dependent Claim
12 words
The gelling agent of claim 4 wherein said specie is Furcellaria fastigiata.
Claim 8
Dependent Claim
12 words
The gelling agent of claim 4 wherein said specie is Hypnea musciformis.
Claim 9
Dependent Claim
65 words
The air freshener gel of claim 1 wherein said gelling agent comprises: a. from about 1.0 to about 1.8% of said carrageenan containing at least 40% by weight of the kappa fraction, b. from about 0.4 to about 0.8% of said locust bean gum; and c. from about 0.5 to about 1.0% of said water soluble ammonium salt having a pH greater than about 5.0.
Claim 10
Dependent Claim
43 words
The air freshener gel of claim 8 wherein said gelling agent comprises: a. about 1.5% of said carrageenan containing at least 40% by weight of the kappa fraction, b. about 0.6% of said locust beam gum; and c. about 0.75% of ammonium chloride.
Claim 11
Dependent Claim
111 words
In an air freshener gel consisting of about 2.5 to 3.0% of a gelling agent and about 97.5 to 97% of an aqueous medium containing a volatile air freshener component; the improvement which comprises a gelling agent comprising: from about 1.0 to about 1.8% of a carrageenan containing at least 40% by weight of the kappa fraction, b. from about 0.4 to about 0.8% of locust bean gum; and c. from about 0.5 to about 1.0% of a water soluble ammonium salt selected from the group consisting of ammonium chloride, ammonium sulfate, ammonium acetate, ammonium phosphate (dibasic), and mixtures thereof, wherein said percent is percent by weight of said freshener gel.
Claim 12
Dependent Claim
111 words
In an air freshener gel consisting of about 2.5 to 3.0% of a gelling agent and about 97.5 to 97% of an aqueous medium containing a volatile air freshener component; the improvement which comprises a gelling agent comprising: from about 1.0 to about 1.8% of a carrageenan containing at least 40% by weight of the kappa fraction, b. from about 0.4 to about 0.8% of locust bean gum; and c. from about 0.5 to about 1.0% of a water soluble ammonium salt selected from the group consisting of ammonium chloride, ammonium sulfate, ammonium acetate, ammonium phosphate (dibasic), and mixtures thereof, wherein said percent is percent by weight of said freshener gel.
Claim 13
Dependent Claim
52 words
The gelling agent of claim 10 wherein said carrageenan containing at least 40% by weight of the kappa fraction is obtained from extracts and combinations of extracts from seaweed of the class Rhodophyceae of the genera selected from the group consisting of Gigartina, Chondrus, Eucheuma, Hypnea, Furcellaria, and combinations of said seaweed.
Claim 14
Dependent Claim
59 words
The gelling agent of claim 10 wherein said carrageenan containing at least 40% by weight of the kappa fraction is obtained from extracts and combinations of extracts from seaweed of the class Rhodophyceae of the species selected from the group consisting of Gigartina stellata, Chondrus crispus, Chondrus oscellatus, Eucheuma cottonii, Hypnea musciformis, Furcellaria fastigiata, and combinations of said seaweed.
Claim 15
Dependent Claim
12 words
The gelling agent of claim 12 wherein said specie is Furcellaria fastigiata.
Claim 16
Dependent Claim
12 words
The gelling agent of claim 12 wherein said specie is Hypnea musciformis.
Claim 17
Dependent Claim
12 words
The gelling agent of claim 12 wherein said specie is Choadrus crispus.
Claim 18
Dependent Claim
43 words
The air freshener gel of claim 10 wherein said gelling agent comprises: a. about 1.5% of said carrageenan containing at least 40% by weight of the kappa fraction, b. about 0.6% of said locust bean gum; and c. about 0.75% of ammonium chloride.
References Cited (Backward Citations)
CA895825A
Cited
US2927055A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1980-10-31 | 1981-05-02 | 1981-11-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-10-31 | 1985-05-02 | 1985-11-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-10-31 | 1989-05-02 | 1989-11-01 | $7700.00 | Window Closed / Lapsed |