EP0074662A2
Expired / Lapsed
EP
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Polymer water-in-oil emulsions
Assignee: Union Carbide Corp
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Filing: 1982-09-13
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Granted: —
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Expires: 2002-09-13
Abstract
Abstract Water soluble ter- or higher polymer water-in-oil emulsions comprising: (a) an aqueous phase comprising from about 60 to about 80 weight percent and containing therein from about 30 to about 70 weight pecent of a ter- or higher polymer and from about 30 to about 70 weight percent of water, (b) a hydrophobic liquid comprising from about 15 to about 39.5 weight percent, and (c) an oil-soluble surfactant comprising from about 0.5 to about 5 weight percent, said weight percents based on the total weight of the emulsion. The water-in-oil emulsion may be inverted into aqueous systems wherein the polymer is released.
Inventors
- 👤 Nan Shieh Chu
- 👤 You-Ling Fan
- 👤 George Lewis Brode
- 👤 Meyer Robert Rosen
Bibliographic Details
Application Number
—
Jurisdiction
EP
Data Source
google_patents
Last Synchronized
2026-10-29 22:15
CPC Classifications
C; C08; C08F; C08F2/00; C08F2/32
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
88 words
A water soluble ter-or higher polymer water-in-oil emulsion comprising: (a) an aqueous phase comprising from about 60 to about 80 weight percent and containing therein from about 30 to about 70 weight percent of a ter- or nigger polymer and from about 30 to about 70 weight percent of water, (b) a hydropnooic liquid comprising from aoout 15 to about 39.5 weight percent; ana (c) an oil-soluole surfactant comprising from about 0.5 to about 5 weight percent, said weight percents based on the total weight of tne emulsion.
Claim 2
Dependent Claim
88 words
A water soluble ter-or higher polymer water-in-oil emulsion comprising: (a) an aqueous phase comprising from about 60 to about 80 weight percent and containing therein from about 30 to about 70 weight percent of a ter- or nigger polymer and from about 30 to about 70 weight percent of water, (b) a hydropnooic liquid comprising from aoout 15 to about 39.5 weight percent; ana (c) an oil-soluole surfactant comprising from about 0.5 to about 5 weight percent, said weight percents based on the total weight of tne emulsion.
Claim 3
Dependent Claim
48 words
A water-in-oil emulsion as defined in claim 1 wherein the aqueous phase comprises from about 68 to about 78 weight percent and contains therein from about 30 to about 70 weight percent of a ter-or higner polymer and from about 30 to about 70 weight percent of water.
Claim 4
Dependent Claim
23 words
A water-in-oil emulsion as defined in claim 1 or 2 wherein the hydrophobic liquid comprises from about 19 to about 31 weight percent.
Claim 5
Dependent Claim
23 words
A water-in-oil emulsion as defined in any of claims 1-3 wherein the oil-soluble surfactant comprises from about 1 to about 3 weight percent.
Claim 6
Dependent Claim
148 words
A water-in-oil emulsion as defined in any of claims 1-4 wherein the terpolymer is of the following formula: wherein R, R 1 and R 3 are independently hydrogen or methyl, is an aixail metal ion, such as Na + or K + , R 4 is OR 5 , where R 5 is an alkyl group having up to 5 carbon atoms, wherein R 7 is either methyl or sthyl, phenyl substituted phenyl, CN, or and R 6 is an alkyl group having up to 8 carbon atoms, wherein (a) is from about 5 to about 90, preferably from about 30 to about 60 percent, (b) is from 5 to about 90, preferably from about 30 to about 60 percent, (c) is from about 0.2 to about 20, preferably from about 1 to about 10 percent, and (d) is an integer of from about 1,000 to about 500,000.
Claim 7
Dependent Claim
53 words
A water-in-oill emulsion as defined in any of claims 1-4 wherein the higher polymer is a tetrapolymer of the following general formula: wherein R, R 1 , , R 3 , R 4 , a, b, c, and d are as previously defined and e is from about 0.1 to about 20 percent.
Claim 8
Dependent Claim
77 words
A water-in-oil emulsion as defined in any of claims 1-4 wherein the terpolymer is of the following formula: wherein is Na + or K + , R 7 is metnyl, ethyl, butyl, and f is from about 5 to about 90, preferably from about 30 to about 60 percent, g is from about 5 to 90, preferably from about 30 to 60 percent,h is from about 0.2 to about 20 percent, and d is as previously defined.
Claim 9
Dependent Claim
43 words
A water-in-oil emulsion as defined in any of claims 1-4 wherein the higher polymer is a tetrapolymer of the following general formula: wherein R 1 , is , R 3 , R 7 , f, g, h, and e are as previous defined.
Claim 10
Dependent Claim
29 words
A water-in-oil emulsion as defined in any of claims 1-8 wherein the hydrophobic liquid is selected from benzene, xylene, toluene, mineral oils, kerosenes, petroleum, Isopar M, or mixtures thereof.
Claim 11
Dependent Claim
24 words
A water-in-oil emulsion as defined in any of claims 1-9 wherein the sufactant has an HLB value of from about 1 to about 10.
References Cited (Backward Citations)
No citation records indexed.
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