US4554026A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aqueous hydrotrope solutions for paint detackifiers
Assignee: ChampionX LLC
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Filing: 1984-11-13
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Granted: 1985-11-19
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Expires: 2004-11-13
Abstract
Abstract Aqueous hydrotrope solutions are useful as detackification aids for oversprayed paint solids.
Inventors
- 👤 David R. Cosper
- 👤 Gretchen L. McKay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:22
CPC Classifications
B; B01; B01D; B01D53/00; B01D53/14; B01D53/1493
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
88 words
A method for the detackification of oversprayed paint solids which comprises contacting such oversprayed paint solids with an aqueous alkaline hydrotrope solution and then recovering detackified paint solids, said hydrotrope being selected from the group consisting of aliphatic and aromatic hydrotropes and blends thereof wherein when the hydrotrope is aliphatic, it contains from 3-10 carbon atoms and when it is aromatic, it contains from 6-9 carbon atoms, said hydrotrope being further characterized as containing a polar group from the group consisting of carboxylate, phosphate, phosphonate, sulfates, or sulfonates.
Claim 2
Independent Claim
88 words
A method for the detackification of oversprayed paint solids which comprises contacting such oversprayed paint solids with an aqueous alkaline hydrotrope solution and then recovering detackified paint solids, said hydrotrope being selected from the group consisting of aliphatic and aromatic hydrotropes and blends thereof wherein when the hydrotrope is aliphatic, it contains from 3-10 carbon atoms and when it is aromatic, it contains from 6-9 carbon atoms, said hydrotrope being further characterized as containing a polar group from the group consisting of carboxylate, phosphate, phosphonate, sulfates, or sulfonates.
Claim 3
Dependent Claim
16 words
The method of claim 1 wherein the aqueous hydrotrope solution contains 250-3,000 ppm of a hydrotrope.
Claim 4
Dependent Claim
16 words
The method of claim 1 wherein the aqueous hydrotrope solution contains 250-1,000 ppm of a hydrotrope.
Claim 5
Dependent Claim
30 words
The method of claim 1 wherein the hydrotrope is selected from the group consisting of sodium hexanoate, sodium octanoate, sodium xylene sulphonate, sodium cumene sulphonate, and sodium dodecyl benzene sulphonate.
Claim 6
Dependent Claim
12 words
The method of claim 1 wherein the paint solid is a lacquer.
Claim 7
Dependent Claim
12 words
The method of claim 1 wherein the paint solid is an enamel.
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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |