Metal appearance composition

• US 5,308,389 A
• Filed: 05/05/1992
• Issued: 05/03/1994
• Est. Priority Date: 05/05/1992
• Status: Expired due to Term

• Current Assignee: Pennzoil-Quaker State Company (Shell Plc)
• Original Assignee: Pennzoil Products Co. (Shell Plc)
• Inventors: Russo, Joseph M., Hendrix, Randall R.
• Primary Examiner(s): Bell, Mark L.
• Assistant Examiner(s): Green, Anthony J.
• Application Number:
  US07/878,694
• Time in Patent Office: 728 Days
• Field of Search: 106/14.11, 106/14.15, 106/14.21, 427/421, 427/385.5, 427/388.4, 252/387, 252/390, 252/394, 252/305, 524/317, 524/364, 524/377, 524/428
• US Class Current: 427/385.5
• CPC Class Codes: C08L 2666/26 Natural polymers, natural resins or derivatives thereof according to C08L1/00 - C08L5/00, C08L89/00, C08L93/00, C08L97/00 or C08L99/00
• CPC Class Codes: C08L 75/04 Polyurethanes
• CPC Class Codes: C09D 175/04 Polyurethanes

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.

Claims

1. A composition for spraying on a surface to provide a flexible protective film on said surface, the composition comprising the following components:

space="preserve" listing-type="tabular">______________________________________ 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. ______________________________________

2. A composition according to claim 1 wherein the composition also contains a defoamer in an amount of 0-1.0 weight percent.

3. 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.

4. A composition according to claim 1 wherein the anti-corrosive agent is an alkanolamine.

5. A composition according to claim 4 wherein the alkanolamine is N,N-diethyl ethanolamine.

6. A composition according to claim 1 wherein the dispersing agent is a glycol ether.

7. A composition according to claim 5 wherein the dispersing agent is propylene glycol t-butyl ether or dipropylene glycol methyl ether.

8. A composition according to claim 1 wherein the antifreeze agent is an alkylene glycol.

9. A composition according to claim 6 wherein the antifreeze agent is polypropylene glycol.

10. An article of manufacture comprising a composition of claim 1 contained in an aerosol container with a propellant.

11. An article of manufacture according to claim 10 wherein the propellant is nitrogen.

12. 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.

13. A method according to claim 12 wherein the surface is metal.

14. A method according to claim 13 wherein the surface is an automobile engine.

15. A method according to claim 12 wherein the composition is applied by spraying from an aerosol container containing the composition.