US5925701A
Expired / Lapsed
US
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Stable aqueous polymeric dispersions containing hydrated metal salts of strong acids
Assignee: Eastman Kodak Co
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Filing: 1997-12-22
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Granted: 1999-07-20
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Expires: 2017-12-22
Abstract
Abstract An aqueous dispersion comprising a dispersed polymer is disclosed, obtained by combining (i) the dispersed polymer (ii) a hydrated metal salt of a strong acid, and (iii) a polymeric surfactant comprising a hydrophobic component containing an aryl radical containing at least 7 carbon atoms and a hydrophilic block component containing at least six repeat units derived from water-soluble monomers, or a multifunctional block copolymeric surfactant derived from the sequential addition of propylene oxide or higher alkylene oxide units and subsequently ethylene oxide units to a polyamine moiety. It has been found that the addition of such polymeric surfactants in accordance with the invention can stabilize an aqueous polymeric dispersion or latex even when hydrated metal salts of strong acids, such as Al 2 (SO 4 ) 3 .18H 2 O, AlCl 3 .6H 2 O, Al(NO 3 ) 3 .9H 2 O, Zn(NO 3 ) 2 .6H 2 O etc., are present.
Inventors
- 👤 Teh-Ming Kung
- 👤 Mary C. Brick
- 👤 Michael W. Orem
- 👤 Robin E. Osterhout
- 👤 Terry C. Schultz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 16:52
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/02; C08; C08L; C08L67/00; C08L67/02
Claims Analysis
Total Claims: 21
Claim 1
Independent Claim
85 words
An aqueous dispersion comprising a dispersed polymer, obtained by combining (i) the dispersed polymer (ii) a hydrated metal salt of a strong acid, and (iii) a polymeric surfactant comprising a hydrophobic component containing an aryl radical containing at least 7 carbon atoms and a hydrophilic block component containing at least six repeat units derived from water-soluble monomers, or a multifunctional block copolymeric surfactant derived from the sequential addition of propylene oxide or higher alkylene oxide units and subsequently ethylene oxide units to a polyamine moiety.
Claim 2
Dependent Claim
85 words
An aqueous dispersion comprising a dispersed polymer, obtained by combining (i) the dispersed polymer (ii) a hydrated metal salt of a strong acid, and (iii) a polymeric surfactant comprising a hydrophobic component containing an aryl radical containing at least 7 carbon atoms and a hydrophilic block component containing at least six repeat units derived from water-soluble monomers, or a multifunctional block copolymeric surfactant derived from the sequential addition of propylene oxide or higher alkylene oxide units and subsequently ethylene oxide units to a polyamine moiety.
Claim 3
Dependent Claim
12 words
The dispersion of claim I wherein the dispersed polymer comprises a polyester.
Claim 4
Dependent Claim
13 words
The dispersion of claim 2 wherein the dispersed polymer contains ionic monomer units.
Claim 5
Dependent Claim
69 words
The dispersion of claim 2 wherein the dispersed polymer comprises a polyester synthesized from dicarboxylates and diols according to the following structure: ##STR8## wherein R 1 is derived from an aliphatic dicarboxylate, a cycloaliphatic dicarboxylate, or an aromatic dicarboxylate; R 2 is derived from a sulfonated dicarboxylate; and R 3 is derived from an aliphatic diol, a fatty acid dimer diol, a cycloaliphatic diol, a glycol, or a prepolymer.
Claim 6
Dependent Claim
72 words
The dispersion of claim 2 wherein said hydrated metal salt of a strong acid is a hydrated form of: aluminum sulfate, aluminum nitrate, aluminum chloride, potassium aluminum sulfate, zinc sulfate, zinc nitrate, zinc chloride, nickel sulfate, nickel nitrate, nickel chloride, ferric sulfate, ferric chloride, ferric nitrate, cupric sulfate, cupric chloride, cupric nitrate, antimony (III) chloride, cobalt (II) chloride, ferrous sulfate, stannic chloride, aluminum trichloroacetate, zinc bromide, aluminum tosylate, or zirconium (IV) chloride.
Claim 7
Dependent Claim
89 words
The dispersion of claim 2 wherein said hydrated metal salt of a strong acid is Al 2 (SO 4 ) 3 .18H 2 O, AlK(SO 4 ) 2 .12H 2 O, NiSO 4 .6H 2 O, ZnSO 4 .7H 2 O, CuSO 4 .5H 2 O, Fe 2 (SO 4 ) 3 .4H 2 O, Al(NO 3 ) 3 .9H 2 O, Ni(NO 3 ) 2 .6H 2 O, Zn(NO 3 ) 2 .6H 2 O, Fe(NO 3 ) 3 .9H 2 O or AlCl 3 .6H 2 O.
Claim 8
Dependent Claim
14 words
The dispersion of claim 2 wherein the metal salt comprises a positive trivalent atom.
Claim 9
Dependent Claim
46 words
The dispersion of claim 7 comprising a nonionic aryl polyoxyethylene ether polymeric surfactant having the formula: ##STR9## where R is an aryl, alkyl or aralkyl group having from 1 to about 20 carbon atoms, and n has an average value greater than or equal to 10.
Claim 10
Dependent Claim
44 words
The dispersion of claim 7 comprising a multifunctional block copolymeric surfactant derived from the sequential addition of propylene oxide units and ethylene oxide units to a diamino moiety and having the following formula: ##STR10## wherein PEO is poly(ethylene oxide) and PPO is poly(propylene oxide).
Claim 11
Dependent Claim
26 words
The dispersion of claim 7 wherein the polymeric surfactant or multifunctional block copolymeric surfactant has an HLB value of greater than or equal to about 14.
Claim 12
Dependent Claim
34 words
The dispersion of claim 2 wherein the hydrated metal salt of a strong acid is combined at a weight ratio of from about 1:20 to 1:5, relative to the concentration of the dispersed polymer.
Claim 13
Dependent Claim
35 words
The dispersion of claim 11 wherein the polymeric surfactant or multifunctional block copolymeric surfactant is combined at a weight ratio of from about 1:10 to about 1:1, relative to the weight of the dispersed polymer.
Claim 14
Dependent Claim
22 words
The dispersion of claim 1 wherein said polymeric surfactant or multifunctional block copolymeric surfactant has an HLB value of greater than 8.
Claim 15
Dependent Claim
22 words
The dispersion of claim 1 wherein said polymeric surfactant or multifunctional block copolymeric surfactant has an HLB value of greater than 11.
Claim 16
Dependent Claim
22 words
The dispersion of claim 1 wherein said polymeric surfactant or multifunctional block copolymeric surfactant has an HLB value of greater than 14.
Claim 17
Dependent Claim
38 words
The dispersion of claim 1 comprising a polymeric surfactant comprising a hydrophobic component containing an aryl radical containing at least 7 carbon atoms and a hydrophilic block component containing at least six repeat units derived from water-soluble monomers.
Claim 18
Dependent Claim
23 words
The dispersion of claim 16 wherein the at least six repeat units derived from water-soluble monomers comprise at lease 6 ethylene oxide units.
Claim 19
Dependent Claim
33 words
The dispersion of claim 1 comprising a multifunctional block copolymeric surfactant derived from the sequential addition of propylene oxide or higher alkylene oxide units and subsequently ethylene oxide units to a polyamine moiety.
Claim 20
Dependent Claim
34 words
The dispersion of claim 1 wherein the hydrated metal salt of a strong acid is combined at a weight ratio of from about 1:20 to 1:5, relative to the concentration of the dispersed polymer.
Claim 21
Dependent Claim
35 words
The dispersion of claim 1 wherein the polymeric surfactant or multifunctional block copolymeric surfactant is combined at a weight ratio of from about 1:10 to about 1:1, relative to the weight of the dispersed polymer.
References Cited (Backward Citations)
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| 3.5 Years (Year 4) | 2002-07-19 | 2003-01-18 | 2003-07-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2006-07-19 | 2007-01-18 | 2007-07-20 | $3760.00 | Window Closed / Lapsed |
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