US4282131A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Car undercoating composition
Assignee: Chapman Enterprises Corp
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Filing: 1980-02-08
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Granted: 1981-08-04
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Expires: 2000-02-08
Abstract
Abstract An improved, water based, undercoating composition, primarily designed for undercoating of vehicles to prevent corrosion. It is a butadiene-styrene based polymer latex composition which contains from about 5% to about 20% by weight of mica as a filler and flattener which provides an effective moisture barrier and also functions to prevent premature gelling of the composition in combination with a sufficient amount of ammonium hydroxide to provide a composition pH within the range of 7.5 to 10.0 and, in addition, to provide enhancement of anti-foaming properties of the composition. The balance comprises small but effective amounts of minors such as a wetting agent, a defoaming agent, a dispersing agent, pigment, viscosity modifiers, and water. Also, disclosed is a solvent based, stryene butadiene coating.
Inventors
- 👤 Edward G. Trousil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:56
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/34
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
143 words
An aqueous emulsion butadiene styrene latex composition consisting essentially of from about 40% to about 65% weight butadiene styrene, from about 5% to about 20% by weight of mica platelets as filler and flattening agent which effectively prevents vapor transmission and also as an anti-gelling agent for said composition and a sufficient amount of ammonium hydroxide to enhance anti-foaming properties of said composition and to provide a pH within the range of about 7.5 to 10.0 from about 0.02% to about 0.2% by weight of a bacteriostatic agent, from about 0.1% to about 1% by weight of a wetting agent, from about 0.05% to about 1% by weight of a defoaming agent, from about 0.5% to about 2% by weight of a viscosity control agent, and from about 1% to about 5% by weight of pigment, the balance of said composition comprising water.
Claim 2
Dependent Claim
143 words
An aqueous emulsion butadiene styrene latex composition consisting essentially of from about 40% to about 65% weight butadiene styrene, from about 5% to about 20% by weight of mica platelets as filler and flattening agent which effectively prevents vapor transmission and also as an anti-gelling agent for said composition and a sufficient amount of ammonium hydroxide to enhance anti-foaming properties of said composition and to provide a pH within the range of about 7.5 to 10.0 from about 0.02% to about 0.2% by weight of a bacteriostatic agent, from about 0.1% to about 1% by weight of a wetting agent, from about 0.05% to about 1% by weight of a defoaming agent, from about 0.5% to about 2% by weight of a viscosity control agent, and from about 1% to about 5% by weight of pigment, the balance of said composition comprising water.
Claim 3
Dependent Claim
15 words
The composition of claim 1 wherein the amount of mica is from 8% to 15%.
Claim 4
Dependent Claim
25 words
The composition of claim 1 wherein the amount of ammonium hydroxide is from about 0.05% by weight to about 4% by weight of said composition.
Claim 5
Dependent Claim
13 words
The composition of claim 1 wherein the bacteriostatic agent is chlorylmethoxypropyl mercuric acetate.
Claim 6
Dependent Claim
59 words
The composition of claim 1 wherein the amount of defoaming agent is from about 0.08% by weight to about 0.2% by weight, and the amount of viscosity control agent is from about 1% by weight to about 1.5% by weight, and the amount of pigment is from about 2% by weight to about 3% by weight of said composition.
Claim 7
Dependent Claim
16 words
The composition of claim 1 wherein the butadiene:styrene ratio is from about 70:30 to about 75:25.
Claim 8
Dependent Claim
169 words
An improved method of undercoating vehicles for rustproofing comprising, applying to the undersurface of the metal of the vehicle's body a composition consisting essentially of an aqueous emulsion butadiene styrene latex composition which is from about 40% to about 65% by weight butadiene styrene, from about 5% to about 20% by weight of mica platelets as a filler and flattening agent which effectively prevents vapor transmission and also act as an anti-gelling agent for said composition, and a sufficient amount of ammonium hydroxide to enhance anti-foaming properties of said composition and provide a pH within the range of about 8.5 to 9.0, from about 0.02% to about 0.2% by weight of a bacteriostatic agent, from about 0.1% to about 1% by weight of a wetting agent, from about 0.05% to about 1% by weight of a defoaming agent, from about 0.5% to about 2% by weight of a viscosity control agent, and from about 1% to about 5% by weight of pigment, the balance of said composition comprising water.
Claim 9
Dependent Claim
169 words
An improved method of undercoating vehicles for rustproofing comprising, applying to the undersurface of the metal of the vehicle's body a composition consisting essentially of an aqueous emulsion butadiene styrene latex composition which is from about 40% to about 65% by weight butadiene styrene, from about 5% to about 20% by weight of mica platelets as a filler and flattening agent which effectively prevents vapor transmission and also act as an anti-gelling agent for said composition, and a sufficient amount of ammonium hydroxide to enhance anti-foaming properties of said composition and provide a pH within the range of about 8.5 to 9.0, from about 0.02% to about 0.2% by weight of a bacteriostatic agent, from about 0.1% to about 1% by weight of a wetting agent, from about 0.05% to about 1% by weight of a defoaming agent, from about 0.5% to about 2% by weight of a viscosity control agent, and from about 1% to about 5% by weight of pigment, the balance of said composition comprising water.
Claim 10
Dependent Claim
99 words
A solvent base undercoating system primarily for use on rustproofing of vehicles, said system consisting essentially of from about 5% to about 40% by weight of butadiene styrene polymer, from about 30% to about 50% solvent for said polymer, from 0% to 3% of a viscosity modifier for said solution, from 0% to 20% of a hydrocarbon resin, from 5% to 15% of mica platelets as a filler and flattening agent, and from 1% to 5% of pigment for said composition, the total solids concentration of said system being within the range of from 40% to 50% by weight.
Claim 11
Dependent Claim
99 words
A solvent base undercoating system primarily for use on rustproofing of vehicles, said system consisting essentially of from about 5% to about 40% by weight of butadiene styrene polymer, from about 30% to about 50% solvent for said polymer, from 0% to 3% of a viscosity modifier for said solution, from 0% to 20% of a hydrocarbon resin, from 5% to 15% of mica platelets as a filler and flattening agent, and from 1% to 5% of pigment for said composition, the total solids concentration of said system being within the range of from 40% to 50% by weight.
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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) | 1984-08-03 | 1985-02-02 | 1985-08-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-08-03 | 1989-02-02 | 1989-08-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-08-03 | 1993-02-02 | 1993-08-04 | $7700.00 | Window Closed / Lapsed |