US4315044A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stable aqueous epoxy dispersions
Assignee: Resolution Performance Products LLC
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Filing: 1980-11-05
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Granted: 1982-02-09
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Expires: 2000-11-05
Abstract
Abstract Stable epoxy dispersion compositions are prepared by emulsifying in water a self-emulsifying epoxy resin film forming component which is the reaction product of (a) a diglycidyl ether of a dihydric phenol, (b) a dihydric phenol and (c) a diglycidyl ether of a polyoxyalkylene glycol. The stable dispersions can be modified by the addition of an aliphatic monoepoxide reactive diluent to the dispersion. The epoxy dispersion compositions when combined with epoxy resin curing agents are useful as coating compositions.
Inventors
- 👤 Jimmy D. Elmore
- 👤 Joseph L. Cecil
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 04:15
CPC Classifications
C; C08; C08J; C08J3/00; C08J3/02; C08J3/03; C08J3/05; C08G; C08G59/00; C08G59/02; C08G59/04; C08G59/06; C08G59/066; C08G59/14; C08G59/1433; C08G59/1438; C08G59/145; C08G59/18; C08G59/20; C08G59/22; C08G59/226; C09; C09D; C09D163/00; C08J2363/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
75 words
A stable epoxy dispersion composition comprising (1) an aqueous medium; and (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol, and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the molecular weight of the epoxy resin is in the range between about 500-20,000.
Claim 2
Dependent Claim
75 words
A stable epoxy dispersion composition comprising (1) an aqueous medium; and (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol, and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the molecular weight of the epoxy resin is in the range between about 500-20,000.
Claim 3
Dependent Claim
23 words
An epoxy dispersion in accordance with claim 1 wherein the diglycidyl ether of dihydric phenol in (a) is diglycidyl ether of bisphenol A.
Claim 4
Dependent Claim
29 words
An epoxy dispersion in accordance with claim 1 wherein at least a portion of the diglycidyl ether of dihydric phenol in (a) is replaced with diglycidyl ether of 2,2-bis(4-hydroxycyclohexyl)propane.
Claim 5
Dependent Claim
17 words
An epoxy dispersion in accordance with claim 1 wherein the dihydric phenol in (b) is bisphenol A.
Claim 6
Dependent Claim
23 words
An epoxy dispersion in accordance with claim 1 wherein the diglycidyl ether of polyoxyalkylene glycol in (3) is diglycidyl ether of polyoxyethylene glycol.
Claim 7
Dependent Claim
23 words
An epoxy dispersion in accordance with claim 1 wherein the diglycidyl ether of polyoxyalkylene glycol in (3) is diglycidyl ether of polyoxypropylene glycol.
Claim 8
Dependent Claim
23 words
An epoxy dispersion in accordance with claim 1 wherein the diglycidyl ether of polyoxyalkylene glycol in (3) is diglycidyl ether of polyoxyethylene-propylene glycol.
Claim 9
Dependent Claim
27 words
An epoxy dispersion in accordance with claim 1 wherein the diglycidyl ether of polyoxyalkylene glycol in (3) has a molecular weight in the range between about 4,000-20,000.
Claim 10
Dependent Claim
94 words
A stable epoxy dispersion composition comprising (1) an aqueous medium; (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol, and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the molecular weight of the epoxy resin is in the range between about 500-20,000; and (3) 1-25 weight percent, based on resin solids weight, of water-immiscible C 8 -C 80 aliphatic monoepoxide reactive diluent.
Claim 11
Dependent Claim
94 words
A stable epoxy dispersion composition comprising (1) an aqueous medium; (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol, and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the molecular weight of the epoxy resin is in the range between about 500-20,000; and (3) 1-25 weight percent, based on resin solids weight, of water-immiscible C 8 -C 80 aliphatic monoepoxide reactive diluent.
Claim 12
Dependent Claim
25 words
An epoxy dispersion in accordance with claim 9 wherein the monoepoxide diluent in (3) is glycidyl ether of monohydric C 8 -C 17 aliphatic alcohol.
Claim 13
Dependent Claim
117 words
A freeze-thaw resistant epoxy dispersion composition comprising (1) an aqueous medium; (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the molecular weight of the epoxy resin is in the range between about 500-20,000; (3) 1-25 weight percent, based on resin solids weight, of water-immiscible C 8 -C 20 aliphatic monoepoxide reactive diluent; and (4) 5-20 weight percent, based on resin solids weight, of water-miscible solvent selected from C 2 -C 10 glycols and glycol ethers.
Claim 14
Dependent Claim
117 words
A freeze-thaw resistant epoxy dispersion composition comprising (1) an aqueous medium; (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the molecular weight of the epoxy resin is in the range between about 500-20,000; (3) 1-25 weight percent, based on resin solids weight, of water-immiscible C 8 -C 20 aliphatic monoepoxide reactive diluent; and (4) 5-20 weight percent, based on resin solids weight, of water-miscible solvent selected from C 2 -C 10 glycols and glycol ethers.
Claim 15
Dependent Claim
21 words
An epoxy dispersion in accordance with claim 11 wherein the solvent in (4) is ethylene glycol or ethylene glycol alkyl ether.
Claim 16
Dependent Claim
21 words
An epoxy dispersion in accordance with claim 11 wherein the solvent in (4) is diethylene glycol or diethylene glycol alkyl ether.
Claim 17
Dependent Claim
21 words
An epoxy dispersion in accordance with claim 11 wherein the solvent in (4) is propylene glycol or propylene glycol alkyl ether.
Claim 18
Dependent Claim
21 words
An epoxy dispersion in accordance with claim 11 wherein the solvent in (4) is dipropylene glycol or dipropylene glycol alkyl ether.
Claim 19
Dependent Claim
96 words
A water-borne paint composition comprising (1) an aqueous medium; (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol, and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the average molecular weight of the epoxy resin is in the range between about 500-20,000; and (3) polyamine curing agent, wherein the ratio of active amino hydrogens to epoxy groups is in the range between about 0.5-2:1.
Claim 20
Dependent Claim
96 words
A water-borne paint composition comprising (1) an aqueous medium; (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol, and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the average molecular weight of the epoxy resin is in the range between about 500-20,000; and (3) polyamine curing agent, wherein the ratio of active amino hydrogens to epoxy groups is in the range between about 0.5-2:1.
Claim 21
Dependent Claim
12 words
A water-borne paint composition in accordance with claim 16 which contains pigment.
Claim 22
Dependent Claim
44 words
A process for providing a substrate surface with a protective coating which comprises applying a water-borne paint composition in accordance with claim 16 to the substrate surface, and thereafter allowing the substrate coating to cure under ambient conditions to form a continuous thermoset film.
Claim 23
Dependent Claim
107 words
A one-package water-borne epoxy coating composition comprising (1) an aqueous medium; (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol, and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the average molecular weight of the epoxy resin is in the range between about 500-20,000; and (3) a curing agent which is substantially unreactive with epoxy groups at ambient temperature, and which is epoxy-interacting and thermosetting at a temperature in the range between about 90°-250° C.
Claim 24
Dependent Claim
107 words
A one-package water-borne epoxy coating composition comprising (1) an aqueous medium; (2) between about 50-70 weight percent of self-emulsifying epoxy resin which is the addition product of reactants comprising (a) 40-90 parts by weight of diglycidyl ether of dihydric phenol, (b) 5-35 parts by weight of dihydric phenol, and (c) 2-15 parts by weight of diglycidyl ether of polyoxyalkylene glycol, wherein the average molecular weight of the epoxy resin is in the range between about 500-20,000; and (3) a curing agent which is substantially unreactive with epoxy groups at ambient temperature, and which is epoxy-interacting and thermosetting at a temperature in the range between about 90°-250° C.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1985-02-08 | 1985-08-10 | 1986-02-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-02-08 | 1989-08-10 | 1990-02-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-02-08 | 1993-08-10 | 1994-02-09 | $7700.00 | Window Closed / Lapsed |