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US5053256A
Expired / Lapsed
US
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Sodium hypochlorite surface treatment to improve the adhesion of paints to polydicyclopentadiene
Assignee: Metton America Inc
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Filing: 1988-11-03
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Granted: 1991-10-01
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Expires: 2008-11-03
Abstract
Abstract A method of improving the paint adhesion properties of a cycloolefin polymer article comprising exposing the surface of said article to a solution of sodium hypochlorite or a solution of potassium permanganate. Preferably the solution is of sodium hypochlorite and it further contains a detergent solution.
Inventors
- 👤 Harold F. Haag
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 21:23
CPC Classifications
C; C08; C08J; C08J11/00; C08J7/00; C08J7/12; C08J2365/00
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
38 words
A method of improving the paint adhesion properties of a cycloolefin polymer article, wherein said cycloolefin comprises dicyclopentadiene, comprising exposing the surface of said article to a aqueous solution of sodium hypochlorite or a solution of potassium permanganate.
Claim 2
Independent Claim
38 words
A method of improving the paint adhesion properties of a cycloolefin polymer article, wherein said cycloolefin comprises dicyclopentadiene, comprising exposing the surface of said article to a aqueous solution of sodium hypochlorite or a solution of potassium permanganate.
Claim 3
Dependent Claim
19 words
The method of claim 1 wherein the surface of said article is exposed to a solution of sodium hypochlorite.
Claim 4
Dependent Claim
23 words
The method of claim 2 wherein the solution of sodium hypochlorite consists of from about 1% to about 5% sodium hypochlorite in water.
Claim 5
Dependent Claim
21 words
The method of claim 3 wherein the solution of sodium hypochlorite consists of from about 1.0% to about 2.5% sodium hypochlorite.
Claim 6
Dependent Claim
13 words
The method of claim 2 wherein said solution comprises in addition a detergent.
Claim 7
Dependent Claim
20 words
The method of claim 5 wherein said solution of sodium hypochlorite comprises from about 0.5% to about 5% sodium hypochlorite.
Claim 8
Dependent Claim
20 words
The method of claim 6 wherein said solution of sodium hypochlorite comprises from about 0.5% to about 2% sodium hypochlorite.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1994-09-30 | 1995-04-01 | 1995-10-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-09-30 | 1999-04-01 | 1999-10-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-09-30 | 2003-04-01 | 2003-10-01 | $7700.00 | Window Closed / Lapsed |