US4844885A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Frangible capsules containing composition
Assignee: Production Previews Inc
•
Filing: 1987-04-08
•
Granted: 1989-07-04
•
Expires: 2007-04-08
Abstract
Abstract A pressure-sensitive microcapsule-containing composition composed of a liquid phase capable of solidification which has substantially evenly dispersed therethroughout a multiplicity of microencapsulated droplets of a solvent phase. The shells of the microcapsule are rupturable under applied pressure for selectively releasing the solvent phase for dissolving the liquid phase after it has solidified.
Inventors
- 👤 Milton P. Chernack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 21:16
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A61K8/11; A61Q; A61Q3/00; A61Q3/04; A61K2800/00; A61K2800/40; A61K2800/41; A61K2800/412
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
68 words
A pressure-sensitive microcapsules-containing composition comprising a nail enamel as a liquid solidifiable phase having substantially evenly dispersed therethroughout a multiplicity of microencapsulated droplets of a solvent phase comprising oil and/or fragrance, the walls of said microcapsules being rupturable under applied pressure for selectively releasing said solvent phase for dissolving said nail enamel after solidification thereof, said nail enamel and said solvent phase being non-reactive with said capsule walls.
Claim 2
Dependent Claim
68 words
A pressure-sensitive microcapsules-containing composition comprising a nail enamel as a liquid solidifiable phase having substantially evenly dispersed therethroughout a multiplicity of microencapsulated droplets of a solvent phase comprising oil and/or fragrance, the walls of said microcapsules being rupturable under applied pressure for selectively releasing said solvent phase for dissolving said nail enamel after solidification thereof, said nail enamel and said solvent phase being non-reactive with said capsule walls.
Claim 3
Dependent Claim
67 words
A pressure-sensitive microcapsules containing composition comprising water soluble paint as a liquid solidifiable phase having substantially evenly dispersed therethroughout a multiplicity of microencapsulated droplets of an aqueous phase, the walls of said microcapsules being rupturable under applied pressure for selectively releasing said aqueous phase for dissolving said water soluble paint after solidification thereof, said aqueous phase and said water soluble paint being non-reactive with said capsule walls.
Claim 4
Dependent Claim
67 words
A pressure-sensitive microcapsules containing composition comprising water soluble paint as a liquid solidifiable phase having substantially evenly dispersed therethroughout a multiplicity of microencapsulated droplets of an aqueous phase, the walls of said microcapsules being rupturable under applied pressure for selectively releasing said aqueous phase for dissolving said water soluble paint after solidification thereof, said aqueous phase and said water soluble paint being non-reactive with said capsule walls.
Claim 5
Dependent Claim
16 words
The composition of claim 1, wherein the microcapsules are substantially invisibly dispersed throughout the liquid phase.
Claim 6
Dependent Claim
17 words
The composition of claim 1, wherein the liquid phase forms a substantially smooth surface upon solidification thereof.
Claim 7
Dependent Claim
25 words
The composition of claim 1, wherein the microcapsules are of a size so as to not substantially interfere with the smooth appearance of the surface.
Claim 8
Dependent Claim
14 words
The composition of claim 1, wherein the solvent phase comprises at least two solvents.
References Cited (Backward Citations)
US3472675A
Cited
US3686701A
Cited
US3691270A
Cited
US3729569A
Cited
US3978204A
Cited
US3864294A
Cited
US4126144A
Cited
US4158053A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-07-03 | 1993-01-02 | 1993-07-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-07-03 | 1997-01-02 | 1997-07-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-07-03 | 2001-01-02 | 2001-07-04 | $7700.00 | Window Closed / Lapsed |