Patent US3875262A successfully refreshed from Google Patents.
US3875262A
Expired / Lapsed
US
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Stabilized organosols through the inter-reaction of functional groups on the stabilizer and dispersed polymers
Assignee: EIDP Inc
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Filing: 1972-11-13
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Granted: 1975-04-01
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Expires: 1992-11-13
Abstract
Abstract Stable dispersions of preformed synthetic organic polymers in organic liquids, stabilized by other preformed synthetic organic polymers attached to the dispersed polymer particles by the inter-reaction of functional groups. The dispersions are useful as coating compositions.
Inventors
- 👤 David G Milne
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 16:44
CPC Classifications
C; C08; C08L; C08L101/00; C09; C09D; C09D127/00; C09D127/02; C09D127/12; C08L33/00; C08L33/04; C08L33/06; C08L33/062
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
116 words
COMPOSITION COMPRISING ORGANIC LIQUID CONTAINING PREFORMED PERFLUOROOLEFIN POLYMER PARTICLES HAVING ATTACHED THERTO 1-100 PERCENT BY WEIGHT THEREOF OF OTHER PREFORMED SYNTHETIC ORGANIC POLYMERS SOLUBLE IN SAID LIQUID, SAID SYNTHETIC ORGANIC POLYMER BEING POLYMERIZED FROM AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER AND CONTAINING AT LEAST 0.5 TO 25 PERCENT BY WEIGHT OF AN UNSATURATED MONOMER CONTAINING AN AMINE FUNCTIONAL GROUP OR A FUNCTIONAL GROUP WHICH IS CONVERTIBLE TO AN AMINE GROUP THE SOLUBLE-POLYMERS BEING ATTACHED TO THE PERFLUOROOLEFIN POLYMER PARTICLES BY THE INTERREACTION OF AMINE GROUPS CARRIED BY SAID SOLUBLE POLYMERS AND CARBOXYLIC OR SULFONIC ACID GROUPS CARRIED BY SAID PERFLUOROOLEFIN POLYMER PARTICLES, SAID PERFLUOROOLEFIN POLYMER CONTAINING AT LEAST ONE CARBOXYLIC OR SULFONIC ACID GROUP PER MOLECULE.
Claim 2
Dependent Claim
116 words
COMPOSITION COMPRISING ORGANIC LIQUID CONTAINING PREFORMED PERFLUOROOLEFIN POLYMER PARTICLES HAVING ATTACHED THERTO 1-100 PERCENT BY WEIGHT THEREOF OF OTHER PREFORMED SYNTHETIC ORGANIC POLYMERS SOLUBLE IN SAID LIQUID, SAID SYNTHETIC ORGANIC POLYMER BEING POLYMERIZED FROM AT LEAST ONE ETHYLENICALLY UNSATURATED MONOMER AND CONTAINING AT LEAST 0.5 TO 25 PERCENT BY WEIGHT OF AN UNSATURATED MONOMER CONTAINING AN AMINE FUNCTIONAL GROUP OR A FUNCTIONAL GROUP WHICH IS CONVERTIBLE TO AN AMINE GROUP THE SOLUBLE-POLYMERS BEING ATTACHED TO THE PERFLUOROOLEFIN POLYMER PARTICLES BY THE INTERREACTION OF AMINE GROUPS CARRIED BY SAID SOLUBLE POLYMERS AND CARBOXYLIC OR SULFONIC ACID GROUPS CARRIED BY SAID PERFLUOROOLEFIN POLYMER PARTICLES, SAID PERFLUOROOLEFIN POLYMER CONTAINING AT LEAST ONE CARBOXYLIC OR SULFONIC ACID GROUP PER MOLECULE.
Claim 3
Dependent Claim
29 words
Composition of claim 1 wherein said soluble polymer is a copolymer of ethylenically unsaturated monomer and at least one unsaturated monomer carrying at least one amine group per molecule.
Claim 4
Dependent Claim
30 words
Composition of claim 2 wherein said ethylenically unsaturated monomer that is not carrying amine groups is selected from the group consisting of esters of acrylic, methacrylic acid and mixtures thereof.
Claim 5
Dependent Claim
22 words
Composition of claim 1 wherein said perfluoroolefin polymer is selected from the group consisting of polyetetrafluoroethylene, copolymer of tetrafluoroethylene/hexafluoropropylene and mixtures thereof.
Claim 6
Dependent Claim
106 words
The composition of claim 4 wherein said soluble polymer is selected from the group consisting of (1) a copolymer formed from about 0.5-25 percent by weight of glycidyl methacrylate and about 99.5-75 percent by weight of at least one ester of acrylic acid or methacrylic acid, such copolymer being post reacted with ammonia and (2) a copolymer formed from about 0.5-25 percent by weight of at least one of the following monomers: 3-( Beta -methacryloxyethyl)-2,2-spirocyclohexyloxazolidine, diethylaminoethyl methacrylate, butylaminoethyl methacrylate, aminoethyl vinyl ether and mixtures thereof and about 99.5-75 percent by weight of at least one ester of acrylic acid or methacrylic acid and (3) mixtures thereof.
Claim 7
Dependent Claim
88 words
Composition of claim 4 wherein said soluble polymer is selected from the group consisting of (1) a copolymer formed from about 0.5-25 percent by weight of glycidyl methacrylate and about 99.5-75 percent by weight of methyl methacrylate, such copolymer being post reacted with ammonia and (2) a copolymer formed from about 0.5-25 percent by weight of at least one of the following monomers: 3-( Beta -methacryloxyethyl)-2,2-spirocyclohexyloxazolidine, diethylaminoethyl methacrylate, butylaminoethyl methacrylate, aminoethyl vinyl ether, and mixtures thereof and 99.5-75 percent by weight of methyl methacrylate and (3) mixtures thereof.
Claim 8
Independent Claim
134 words
A method for stabilizing a dispersion, in an organic liquid, of preformed perfluoroolefin polymer particles bearing functional groups selected from the group consisting of carboxylic acid groups and sulfonic acid groups, said perfluoroolefin polymer containing at least one functional group per molecule, said method comprising bringing said particles into contact with 1-100% by weight thereof of other synthetic organic polymers, soluble in said liquid and bearing amine functional groups, under conditions in which the functional groups carried by the perfluoroolefin polymer and the functional groups carried by the soluble polymer inter-react, said synthetic organic polymer being polymerized from at least one ethylenically unsaturated monomer and containing at least 0.5 to 25 percent by weight of an unsaturated monomer containing an amine functional group or a functional group which is convertible to an amine group.
Claim 9
Independent Claim
134 words
A method for stabilizing a dispersion, in an organic liquid, of preformed perfluoroolefin polymer particles bearing functional groups selected from the group consisting of carboxylic acid groups and sulfonic acid groups, said perfluoroolefin polymer containing at least one functional group per molecule, said method comprising bringing said particles into contact with 1-100% by weight thereof of other synthetic organic polymers, soluble in said liquid and bearing amine functional groups, under conditions in which the functional groups carried by the perfluoroolefin polymer and the functional groups carried by the soluble polymer inter-react, said synthetic organic polymer being polymerized from at least one ethylenically unsaturated monomer and containing at least 0.5 to 25 percent by weight of an unsaturated monomer containing an amine functional group or a functional group which is convertible to an amine group.
Claim 10
Dependent Claim
50 words
The process of claim 6 wherein said soluble polymer is a copolymer formed from about 99.5-75 percent by weight of at least one ester of acrylic acid or methacrylic acid and about 0.5-25 percent by weight of at least one unsaturated monomer carrying at least one amine group per molecule.
References Cited (Backward Citations)
US3232903A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-31 | 1978-09-30 | 1979-04-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-31 | 1982-09-30 | 1983-04-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-31 | 1986-09-30 | 1987-04-01 | $7700.00 | Window Closed / Lapsed |