US5308389A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal appearance composition
Assignee: Pennzoil Quaker State Co
•
Filing: 1992-05-05
•
Granted: 1994-05-03
•
Expires: 2012-05-05
Abstract
Abstract A water-based composition for spraying on a surface such as an automobile engine, to provide a flexible protective film thereon comprises a water dispersible polyurethane elastomer, an anti-corrosive agent, a thickener, a dispersing agent, an antifreeze agent, and water.
Inventors
- 👤 Joseph M. Russo
- 👤 Randall R. Hendrix
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 05:54
CPC Classifications
C; C09; C09D; C09D175/00; C09D175/04
Claims Analysis
Total Claims: 16
Claim 1
Independent Claim
46 words
A composition for spraying on a surface to provide a flexible protective film on said surface, the composition comprising the following components: ______________________________________
Component Amount - Weight Percent
______________________________________
Polyurethane 25-40
Anti-corrosive Agent
1.0-2.0
Thickener 0.1-2.0
Distilled Water 40-70
Dispersing Agent
0.1-10
Antifreeze Agent
0.5-2.0.
______________________________________
Claim 2
Dependent Claim
46 words
A composition for spraying on a surface to provide a flexible protective film on said surface, the composition comprising the following components: ______________________________________
Component Amount - Weight Percent
______________________________________
Polyurethane 25-40
Anti-corrosive Agent
1.0-2.0
Thickener 0.1-2.0
Distilled Water 40-70
Dispersing Agent
0.1-10
Antifreeze Agent
0.5-2.0.
______________________________________
Claim 3
Dependent Claim
20 words
A composition according to claim 1 wherein the composition also contains a defoamer in an amount of 0-1.0 weight percent.
Claim 4
Dependent Claim
23 words
A composition according to claim 1 wherein the composition also contains a wetting agent in an amount of 0.5 to 3.0 weight percent.
Claim 5
Dependent Claim
13 words
A composition according to claim 1 wherein the anti-corrosive agent is an alkanolamine.
Claim 6
Dependent Claim
12 words
A composition according to claim 4 wherein the alkanolamine is N,N-diethyl ethanolamine.
Claim 7
Dependent Claim
14 words
A composition according to claim 1 wherein the dispersing agent is a glycol ether.
Claim 8
Dependent Claim
20 words
A composition according to claim 5 wherein the dispersing agent is propylene glycol t-butyl ether or dipropylene glycol methyl ether.
Claim 9
Dependent Claim
14 words
A composition according to claim 1 wherein the antifreeze agent is an alkylene glycol.
Claim 10
Dependent Claim
13 words
A composition according to claim 6 wherein the antifreeze agent is polypropylene glycol.
Claim 11
Dependent Claim
18 words
An article of manufacture comprising a composition of claim 1 contained in an aerosol container with a propellant.
Claim 12
Dependent Claim
13 words
An article of manufacture according to claim 10 wherein the propellant is nitrogen.
Claim 13
Dependent Claim
33 words
A method for forming a protective non-yellowing film on a surface which comprises applying a composition of claim 1 to the surface, and permitting the composition to remain on the surface to dry.
Claim 14
Dependent Claim
11 words
A method according to claim 12 wherein the surface is metal.
Claim 15
Dependent Claim
13 words
A method according to claim 13 wherein the surface is an automobile engine.
Claim 16
Dependent Claim
20 words
A method according to claim 12 wherein the composition is applied by spraying from an aerosol container containing the composition.
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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) | 1997-05-02 | 1997-11-01 | 1998-05-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-05-02 | 2001-11-01 | 2002-05-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-05-02 | 2005-11-01 | 2006-05-03 | $7700.00 | Window Closed / Lapsed |