US4520142A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aerosol application of encapsulated materials
Assignee: 3M Co
•
Filing: 1984-02-17
•
Granted: 1985-05-28
•
Expires: 2004-02-17
Abstract
Abstract Microencapsulated liquids are applied to substrates from an aerosol applicator. The composition requires selection of solvents, propellants and binders that are not active solvents on the material constituting the capsule shell.
Inventors
- 👤 Roger W. Leinen
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 15:08
CPC Classifications
C; C09; C09K; C09K3/00; C09K3/30; Y; Y10; Y10S; Y10S428/00; Y10S428/905; Y10S524/00; Y10S524/903
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
75 words
An appliable composition comprising (a) microcapsules having an average diameter between 5 and 75 microns containing a liquid within a shell, (b) a film forming binder, (c) a solvent for said film forming binder which is not an active solvent for the material comprising the shell of said microcapsule, and (d) a propellant which is miscible with said solvent and which is not an active solvent for the material comprising the shell of said microcapsule.
Claim 2
Dependent Claim
75 words
An appliable composition comprising (a) microcapsules having an average diameter between 5 and 75 microns containing a liquid within a shell, (b) a film forming binder, (c) a solvent for said film forming binder which is not an active solvent for the material comprising the shell of said microcapsule, and (d) a propellant which is miscible with said solvent and which is not an active solvent for the material comprising the shell of said microcapsule.
Claim 3
Dependent Claim
21 words
The composition of claim 1 wherein a thickening agent which is compatible with said solvent is also present in the composition.
Claim 4
Dependent Claim
28 words
The composition of claim 1 wherein the relative parts by weight of the components are (a) microcapsules, 0.1-15% (b) binder, 1-30% (c) solvent, 35-95% and (d) propellant, 2-60%.
Claim 5
Dependent Claim
31 words
The composition of claim 2 wherein the relative parts by weight of the components are (a) microcapsules, 0.1-15% (b) binder, 1-30% (c) solvent, 35-95% (d) propellant, 2-60% and (e) thickener, 0.25-8%.
Claim 6
Dependent Claim
28 words
The composition of claim 1 wherein the relative parts by weight of the components are (a) microcapsules, 1-12% (b) binder, 3-25% (c) solvent, 45-90% and (d) propellant, 3-50%.
Claim 7
Dependent Claim
31 words
The composition of claim 2 wherein the relative parts by weight of the components are (a) microcapsules, 1-12% (b) binder, 3-25% (c) solvent, 45-90% (d) propellant, 3-50% and (e) thickener, 0.25-8%.
Claim 8
Dependent Claim
63 words
The composition of claim 1 wherein the microcapsules have a shell of urea formaldehyde, the binder comprises an allicyclic, petroleum-based hydrocarbon resin, the solvent comprises an aliphatic hydrocarbon selected from the group consisting of pentane, hexane, heptane, and octane, and the propellant is an aliphatic hydrocarbon selected from the group consisting of butane, isobutane, and propane or a low molecular weight halogenated hydrocarbon.
Claim 9
Dependent Claim
63 words
The composition of claim 2 wherein the microcapsules have a shell of urea formaldehyde, the binder comprises an allicyclic, petroleum-based hydrocarbon resin, the solvent comprises an aliphatic hydrocarbon selected from the group consisting of pentane, hexane, heptane, and octane, and the propellant is an aliphatic hydrocarbon selected from the group consisting of butane, isobutane, and propane or a low molecular weight halogenated hydrocarbon.
Claim 10
Dependent Claim
9 words
An aerosol can containing the composition of claim 1.
Claim 11
Dependent Claim
9 words
An aerosol can containing the composition of claim 2.
Claim 12
Dependent Claim
9 words
An aerosol can containing the composition of claim 3.
Claim 13
Dependent Claim
9 words
An aerosol can containing the composition of claim 4.
Claim 14
Dependent Claim
9 words
An aerosol can containing the composition of claim 5.
Claim 15
Dependent Claim
9 words
An aerosol can containing the composition of claim 6.
Claim 16
Dependent Claim
65 words
An aerosol can according to claim 9 wherein the microcapsules have a shell of urea formaldehyde, the binder comprises an allicyclic, petroleum-based hydrocarbon resin, the solvent comprises an aliphatic hydrocarbon selected from the group consisting of pentane, hexane, heptane, and octane, and the propellant is an aliphatic hydrocarbon selected from the group consisting of butane, isobutane, and propane or a low molecular weight halogenated hydrocarbon.
Claim 17
Dependent Claim
65 words
An aerosol can according to claim 10 wherein the microcapsules have a shell of urea formaldehyde, the binder comprises an allicyclic, petroleum-based hydrocarbon resin, the solvent comprises an aliphatic hydrocarbon selected from the group consisting of pentane, hexane, heptane, and octane, and the propellant is an aliphatic hydrocarbon selected from the group consisting of butane, isobutane, and propane or a low molecular weight halogenated hydrocarbon.
Claim 18
Dependent Claim
65 words
An aerosol can according to claim 11 wherein the microcapsules have a shell of urea formaldehyde, the binder comprises an allicyclic, petroleum-based hydrocarbon resin, the solvent comprises an aliphatic hydrocarbon selected from the group consisting of pentane, hexane, heptane, and octane, and the propellant is an aliphatic hydrocarbon selected from the group consisting of butane, isobutane, and propane or a low molecular weight halogenated hydrocarbon.
Claim 19
Dependent Claim
65 words
An aerosol can according to claim 12 wherein the microcapsules have a shell of urea formaldehyde, the binder comprises an allicyclic, petroleum-based hydrocarbon resin, the solvent comprises an aliphatic hydrocarbon selected from the group consisting of pentane, hexane, heptane, and octane, and the propellant is an aliphatic hydrocarbon selected from the group consisting of butane, isobutane, and propane or a low molecular weight halogenated hydrocarbon.
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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) | 1988-05-27 | 1988-11-26 | 1989-05-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-05-27 | 1992-11-26 | 1993-05-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-05-27 | 1996-11-26 | 1997-05-28 | $7700.00 | Window Closed / Lapsed |