US3969128A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Pigment additive for protective and decorative coatings
Assignee: Individual
•
Filing: 1973-12-06
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Granted: 1976-07-13
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Expires: 1993-12-06
Abstract
Abstract This invention relates to a new and useful coating for protecting surfaces. The coating is not only decorative but is resistant to chemicals, abrasives, and to weather. The invention consists of adding fragmented glass bubbles to a protective coating solution such as paint. Prior to fragmentation of the glass bubbles they are treated with either a hydro or oleo phobic agent which will cause the fragmented bubble pieces to rise to the paint's surface. The fragmented bubbles form a glass surface when the protective coating is applied to a substrate. The untreated surfaces of the glass bubbles, that is the interior portion of the glass bubble prior to fragmentation, form a bond between themselves and the protective coating.
Inventors
- 👤 Bhaskar Raj Urs
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-03 21:04
CPC Classifications
C; C09; C09D; C09D7/00; C09D7/40; C09D7/60; C09D7/61; C09D7/62; C09D7/70; C08; C08K; C08K3/00; C08K3/40; C08K9/00; C08K9/04
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
130 words
A protective coating composition for application to a substrate, said composition comprising an admixture of: a paint composition; and a plurality of fractured pieces of a hollow bubble having a wall thickness of one-half to ten microns, wherein said hollow bubble is treated with a leafing agent and then fractured into a plurality of fractured pieces, each of the plurality of fractured pieces having the leafing agent attached to only its convex surface, and the leafing agent being such as to enable the fractured pieces of material to migrate to the outer surface of the paint composition; the untreated surfaces of each of the fragmented pieces inhibiting the fractured pieces from being removed from the outer surface of the coating composition when the coating composition is applied to the substrate.
Claim 2
Dependent Claim
130 words
A protective coating composition for application to a substrate, said composition comprising an admixture of: a paint composition; and a plurality of fractured pieces of a hollow bubble having a wall thickness of one-half to ten microns, wherein said hollow bubble is treated with a leafing agent and then fractured into a plurality of fractured pieces, each of the plurality of fractured pieces having the leafing agent attached to only its convex surface, and the leafing agent being such as to enable the fractured pieces of material to migrate to the outer surface of the paint composition; the untreated surfaces of each of the fragmented pieces inhibiting the fractured pieces from being removed from the outer surface of the coating composition when the coating composition is applied to the substrate.
Claim 3
Dependent Claim
17 words
A protective coating composition as defined in claim 1 wherein the fractured pieces of material are inorganic.
Claim 4
Dependent Claim
48 words
A protective coating composition as defined in claim 2 wherein the fractured pieces of hollow material are treated with a non-hydrophobic coupling agent, said coupling agent seeking out the untreated surfaces of the fractured material pieces creating a strong bond between the paint composition and the fractured pieces.
Claim 5
Dependent Claim
15 words
A protective coating composition as defined in claim 3 wherein the inorganic material is glass.
Claim 6
Dependent Claim
23 words
A protective coating composition as defined in claim 4 wherein the hollow material has a diameter of between twenty-five and two hundred microns.
Claim 7
Dependent Claim
24 words
A protective coating composition as defined in claim 5 wherein the wall thickness of the hollow material is between one-half micron and ten microns.
Claim 8
Dependent Claim
22 words
A protective coating composition as defined in claim 6 wherein said paint composition is comprised of solvents, reactive diluents, fillers and pigments.
References Cited (Backward Citations)
US3759852A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-07-13 | 1980-01-12 | 1980-07-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-07-13 | 1984-01-12 | 1984-07-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-07-13 | 1988-01-12 | 1988-07-13 | $7700.00 | Window Closed / Lapsed |