US4929666A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Fluorocarbon containing, reactive polymeric surfactants and coating compositions therefrom
Assignee: Dow Chemical Co
•
Filing: 1989-09-01
•
Granted: 1990-05-29
•
Expires: 2009-09-01
Abstract
Abstract Water-soluble or water-dispersible, crosslinkable polymeric surfactants having fluorocarbon and ionic moieties are disclosed. Such surfactants can be cured into tough, solvent resistant, low critical surface tension coatings useful for protective finishes on metal, plastics and fabrics.
Inventors
- 👤 Donald L. Schmidt
- 👤 Perry J. McCrackin
- 👤 Charles E. Coburn
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:36
CPC Classifications
C; C08; C08F; C08F8/00; C08F8/44; C08F8/30
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
109 words
A water-based crosslinkable coating composition comprising an aqueous solution of (a) a water-soluble or water-dispersible crosslinkable polymeric surfactant having (1) at least one pendant fluorocarbon moiety and (2) at least one pendant ionic moiety which is capable of reacting with a counterion to form a crosslinked polymer, and (b) a polymeric crosslinking agent having an ionic or potentially ionic moiety counterion capable of reacting with the ionic moiety of the surfactant; said composition having the capability of forming a uniform, thin film, on a surface to be coated, and the capability, on crosslinking, to form a uniform, thin coating having a critical surface tension less than about 19 dynes/cm.
Claim 2
Dependent Claim
109 words
A water-based crosslinkable coating composition comprising an aqueous solution of (a) a water-soluble or water-dispersible crosslinkable polymeric surfactant having (1) at least one pendant fluorocarbon moiety and (2) at least one pendant ionic moiety which is capable of reacting with a counterion to form a crosslinked polymer, and (b) a polymeric crosslinking agent having an ionic or potentially ionic moiety counterion capable of reacting with the ionic moiety of the surfactant; said composition having the capability of forming a uniform, thin film, on a surface to be coated, and the capability, on crosslinking, to form a uniform, thin coating having a critical surface tension less than about 19 dynes/cm.
Claim 3
Dependent Claim
15 words
The coating composition of claim 1 wherein the ionic moiety on the surfactant is anionic.
Claim 4
Dependent Claim
15 words
The coating composition of claim 2 wherein the crosslinking agent is polyfunctional oxazoline or oxazine.
Claim 5
Dependent Claim
12 words
The coating composition of claim 3 wherein the crosslinking agent is polyisopropenyloxazoline.
Claim 6
Dependent Claim
15 words
The coating composition of claim 1 wherein the ionic moiety on the surfactant is cationic.
Claim 7
Dependent Claim
17 words
The coating composition of claim 5 wherein the counterions of the crosslinking agent are nucleophilic polyfunctional anions.
Claim 8
Dependent Claim
11 words
The coating composition of claim 6 wherein the anions are bicarbonate.
Claim 9
Dependent Claim
12 words
The coating composition of claim 6 wherein the anions are polyfunctional carboxylates.
Claim 10
Dependent Claim
14 words
A coating formulation comprising the coating composition of claim 1 and a water-based solvent.
Claim 11
Dependent Claim
16 words
The coating formulation of claim 9 wherein the coating composition is the composition of claim 2.
Claim 12
Dependent Claim
16 words
The coating formulation of claim 9 wherein the coating composition is the composition of claim 5.
References Cited (Backward Citations)
US3806498A
Cited
US3822228A
Cited
US3654244A
Cited
SU390107A1
Cited
US3907756A
Cited
US3804797A
Cited
US4013627A
Cited
US3838110A
Cited
US4310593A
Cited
US4325857A
Cited
US4388372A
Cited
US4344993A
Cited
EP0161382A1
Cited
JPS59101319A
Cited
JPS59203788A
Cited
US4634754A
Cited
US4592930A
Cited
US4595518A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1993-05-28 | 1993-11-27 | 1994-05-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-05-28 | 1997-11-27 | 1998-05-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-05-28 | 2001-11-27 | 2002-05-29 | $7700.00 | Window Closed / Lapsed |