US4122056A
Expired / Lapsed
US
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Emulsion polymerization of ethylenically unsaturated monomers in hydroxy-terminated organic compounds
Assignee: BASF Corp
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Filing: 1978-02-23
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Granted: 1978-10-24
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Expires: 1998-02-23
Abstract
Abstract Finely-divided dispersed solids are prepared by the emulsion polymerization in the presence of a free radical catalyst of a major amount of an ethylenically unsaturated monomer or mixture of monomers and a minor amount of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, an oxyethylene content of from about 15 to 80 weight percent, a hydroxyl equivalent weight of from 250 to 10,000 and containing a polymerizable carbon-to-carbon double bond. The resulting polymeric solids are particularly useful in the preparation of reinforced polymer compositions.
Inventors
- 👤 Gerhard Gustav Ramlow
- 👤 Louis Celeste Pizzini
- 👤 John Thomas Patton, Jr.
- 👤 John Richard Murphy
- 👤 John Eugene Davis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:19
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/06
Claims Analysis
Total Claims: 20
Claim 1
Independent Claim
115 words
An aqueous emulsion of finely-divided hydroxy-containing polymeric solids prepared by polymerizing, at a temperature between -5° C. and 130° C. in the presence of a catalytically sufficient amount of a free radical catalyst and water in an amount of from about one part to four parts per part of (a) below, (a) a major amount of an ethylenically unsaturated monomer or mixture of monomers and (b) a minor amount of a hydroxy-terminated organic compound having an acid number of one or less, from one to eight hydroxyl groups, an oxyethylene content of from about 15 to 80 weight percent, a hydroxyl equivalent weight of from 250 to 10,000 and containing a polymerizable carbon-to-carbon double bond.
Claim 2
Dependent Claim
115 words
An aqueous emulsion of finely-divided hydroxy-containing polymeric solids prepared by polymerizing, at a temperature between -5° C. and 130° C. in the presence of a catalytically sufficient amount of a free radical catalyst and water in an amount of from about one part to four parts per part of (a) below, (a) a major amount of an ethylenically unsaturated monomer or mixture of monomers and (b) a minor amount of a hydroxy-terminated organic compound having an acid number of one or less, from one to eight hydroxyl groups, an oxyethylene content of from about 15 to 80 weight percent, a hydroxyl equivalent weight of from 250 to 10,000 and containing a polymerizable carbon-to-carbon double bond.
Claim 3
Dependent Claim
26 words
The emulsion of claim 1 wherein the ethylenically unsaturated monomer is selected from the group consisting of styrene, acrylonitrile, vinylidene chloride, methylmethacrylate, acrylamide and mixtures thereof.
Claim 4
Dependent Claim
17 words
The emulsion of claim 1 wherein the ethylenically unsaturated monomer is a mixture of styrene and acrylonitrile.
Claim 5
Dependent Claim
12 words
The emulsion of claim 1 wherein the ethylenically unsaturated monomer is styrene.
Claim 6
Dependent Claim
63 words
The emulsion of claim 1 wherein the hydroxy-terminated organic compound is prepared by the reaction of from 1 to 2 moles of an organic compound having both ethylenic unsaturation and a hydroxyl, carboxyl or epoxy group with 1 mole of a hydroxy-containing polyalkylene polyether followed by reaction with an alkylene oxide to yield a compound having an acid number of less than one.
Claim 7
Dependent Claim
23 words
The emulsion of claim 5 wherein the organic compound having both ethylenic unsaturation and a hydroxyl, carboxyl or epoxy group is maleic anhydride.
Claim 8
Dependent Claim
23 words
The emulsion of claim 5 wherein the hydroxy-containing polyalkylene ether is an alkylene oxide adduct of trimethylolpropane, glycerol, propylene glycol and mixtures thereof.
Claim 9
Dependent Claim
28 words
The emulsion of claim 1 wherein the ethylenically unsaturated monomer comprises from 60 to 80 weight percent based on the total weight of monomer and hydroxy-terminated organic compound.
Claim 10
Dependent Claim
121 words
A process for the preparation of an aqueous emulsion of a finely-divided hydroxy-containing polymeric solid comprising polymerizing, at a temperature between -5° C. and 130° C. in the presence of a catalytically sufficient amount of a free radical catalyst and water in an amount of from about one part to four parts per part of (a) below, (a) a major amount of an ethylenically unsaturated monomer or mixture of monomers and (b) a minor amount of a hydroxy-terminated organic compound having an acid number of one or less, from one to eight hydroxy groups, an oxyethylene content of from about 15 to 80 weight percent, a hydroxyl equivalent weight of from 250 to 10,000, and containing a polymerizable carbon-to-carbon double bond.
Claim 11
Dependent Claim
121 words
A process for the preparation of an aqueous emulsion of a finely-divided hydroxy-containing polymeric solid comprising polymerizing, at a temperature between -5° C. and 130° C. in the presence of a catalytically sufficient amount of a free radical catalyst and water in an amount of from about one part to four parts per part of (a) below, (a) a major amount of an ethylenically unsaturated monomer or mixture of monomers and (b) a minor amount of a hydroxy-terminated organic compound having an acid number of one or less, from one to eight hydroxy groups, an oxyethylene content of from about 15 to 80 weight percent, a hydroxyl equivalent weight of from 250 to 10,000, and containing a polymerizable carbon-to-carbon double bond.
Claim 12
Dependent Claim
26 words
The process of claim 9 wherein the ethylenically unsaturated monomer is selected from the group consisting of styrene, acrylonitrile, vinylidene chloride, methylmethacrylate, acrylamide and mixtures thereof.
Claim 13
Dependent Claim
17 words
The process of claim 9 wherein the ethylenically unsaturated monomer is a mixture of styrene and acrylonitrile.
Claim 14
Dependent Claim
12 words
The process of claim 9 wherein the ethylenically unsaturated monomer is styrene.
Claim 15
Dependent Claim
63 words
The process of claim 9 wherein the hydroxy-terminated organic compound is prepared by the reaction of from 1 to 2 moles of an organic compound having both ethylenic unsaturation and a hydroxyl, carboxyl or epoxy group with 1 mole of a hydroxy-containing polyalkylene polyether followed by reaction with an alkylene oxide to yield a compound having an acid number of less than one.
Claim 16
Dependent Claim
23 words
The process of claim 13 wherein the organic compound having both ethylenic unsaturation and a hydroxyl, carboxyl or epoxy group is maleic anhydride.
Claim 17
Dependent Claim
23 words
The process of claim 13 wherein the hydroxy-containing polyalkylene ether is an alkylene oxide adduct of trimethylolpropane, glycerol, propylene glycol and mixtures thereof.
Claim 18
Dependent Claim
28 words
The process of claim 13 wherein the ethylenically unsaturated monomer comprises from 60 to 80 weight percent based on the total weight of monomer and hydroxy-terminated organic compound.
Claim 19
Dependent Claim
14 words
The process of claim 9 wherein the free-radical catalyst is a redox catalyst system.
Claim 20
Dependent Claim
17 words
The process of claim 17 wherein the catalyst system was a mixture of persulfate and bisulfite radicals.
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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) | 1981-10-23 | 1982-04-24 | 1982-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-10-23 | 1986-04-24 | 1986-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-10-23 | 1990-04-24 | 1990-10-24 | $7700.00 | Window Closed / Lapsed |