Patent US4436848A successfully refreshed from Google Patents.
US4436848A
Expired / Lapsed
US
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Aqueous co-emulsions of epoxy resin and mineral oil
Assignee: Owens Corning
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Filing: 1983-04-12
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Granted: 1984-03-13
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Expires: 2003-04-12
Abstract
Abstract An aqueous emulsion of epoxy resin or epoxy resin solution and mineral oil can be formed using a low level of predominantly non-ionic surfactant and an anti-static agent.
Inventors
- 👤 Richard M. Haines
- 👤 Robert Wong
- 👤 Elisabeth J. Berger
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 09:42
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J2363/00; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2913; Y10T428/2933; Y10T428/2938
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
135 words
An aqueous emulsion consisting essentially of: (a) about 30 to about 75 weight percent, based on the total weight of the emulsion, of (i) an emulsified liquid epoxy resin or (ii) an emulsified liquid solution containing a total weight of epoxy resin from about 30 to about 75 percent of the total weight of the emulsion and an organic solvent therefor; (b) about 1 to about 5 weight percent, based on the weight of the epoxy resin, of mineral oil; (c) about 5 to about 12 weight percent, based on the weight of the epoxy resin, of predominantly non-ionic surfactant for emulsifying the epoxy resin or solution thereof and the mineral oil; (d) about 0.5 to about 5 weight percent, based on the weight of the epoxy resin, of an anti-static agent and (e) water.
Claim 2
Dependent Claim
135 words
An aqueous emulsion consisting essentially of: (a) about 30 to about 75 weight percent, based on the total weight of the emulsion, of (i) an emulsified liquid epoxy resin or (ii) an emulsified liquid solution containing a total weight of epoxy resin from about 30 to about 75 percent of the total weight of the emulsion and an organic solvent therefor; (b) about 1 to about 5 weight percent, based on the weight of the epoxy resin, of mineral oil; (c) about 5 to about 12 weight percent, based on the weight of the epoxy resin, of predominantly non-ionic surfactant for emulsifying the epoxy resin or solution thereof and the mineral oil; (d) about 0.5 to about 5 weight percent, based on the weight of the epoxy resin, of an anti-static agent and (e) water.
Claim 3
Dependent Claim
47 words
An aqueous emulsion according to claim 1 wherein said non-ionic surfactant comprises a major proportion by weight of material having an HLB index of about 2 to about 7 and a minor proportion by weight of material having an HLB index of about 15 to about 20.
Claim 4
Dependent Claim
20 words
An aqueous emulsion according to claim 2 wherein said non-ionic surfactant further comprises a minor proportion by weight of methylcellulose.
Claim 5
Dependent Claim
57 words
An aqueous emulsion according to claim 1 wherein said non-ionic surfactant comprises a major proportion by weight of a C.sub.≧6 -alkylaryloxypoly(C 2-4 -alkoxy)-C 2-4 -alkanol having HLB index from about 2 to about 7 and a minor proportion by weight of a C.sub.≧6 -alkylaryloxypoly(C 2-4 -alkoxy)-C 2-4 -alkanol having HLB index from about 15 to about 20.
Claim 6
Dependent Claim
19 words
An aqueous emulsion according to claim 4 wherein said surfactant further comprises a minor proportion by weight of methylcellulose.
Claim 7
Dependent Claim
23 words
An aqueous emulsion according to claim 1 wherein said epoxy resin is characterized by an epoxy equivalent weight not greater than about 250.
Claim 8
Dependent Claim
21 words
An aqueous emulsion according to claim 6 wherein said epoxy resin is a glycidylether-termintaed adduct of a bisphenol and an epihalohydrin.
Claim 9
Dependent Claim
23 words
An aqueous composition according to claim 4 wherein said epoxy resin is characterized by an epoxy equivalent weight not greater than about 250.
Claim 10
Dependent Claim
21 words
An aqueous emulsion according to claim 8 wherein said epoxy resin is a glycidylether-terminated adduct of a bisphenol and an epihalohydrin.
References Cited (Backward Citations)
US3772870A
Cited
US3837898A
Cited
US3850869A
Cited
US4140833A
Cited
US4330444A
Cited
US4361465A
Cited
US4369264A
Cited
US4394475A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-03-13 | 1987-09-12 | 1988-03-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-03-13 | 1991-09-12 | 1992-03-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-03-13 | 1995-09-12 | 1996-03-13 | $7700.00 | Window Closed / Lapsed |