Patent US3931092A successfully refreshed from Google Patents.
US3931092A
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Finely-divided polymeric solids having improved physical properties
Assignee: BASF Corp
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Filing: 1974-04-29
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Granted: 1976-01-06
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Expires: 1994-04-29
Abstract
Abstract Finely-divided dispersed solids are prepared by polymerizing in the presence of a free radical catalyst and an organic solvent 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 equivalent weight of from 500 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 G. Ramlow
- 👤 Louis C. Pizzini
- 👤 John T. Patton, Jr.
- 👤 John R. Murphy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:07
CPC Classifications
C; C08; C08F; C08F246/00; C08F299/00
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
136 words
A finely-divided dispersed solid polymer prepared by polymerizing at a temperature between 25°C. and 180°C. in the presence of from about 0.05 to 5.0 weight percent based on the weight of (a) below of a free radical catalyst and from about one part to nineteen parts by weight per part of (b) below of an organic solvent having a boiling point between 25°C. and 250°C.: a. from about 55 to 95 weight percent of an ethylenically unsaturated monomer or mixture of monomers, and b. from about 45 to 5 weight percent of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, a hydroxyl equivalent weight of from 500 to 10,000 and containing a polymerizable carbon-to-carbon double bond, said weight percents of (a) and (b) being based on the total weight of (a) and (b).
Claim 2
Dependent Claim
136 words
A finely-divided dispersed solid polymer prepared by polymerizing at a temperature between 25°C. and 180°C. in the presence of from about 0.05 to 5.0 weight percent based on the weight of (a) below of a free radical catalyst and from about one part to nineteen parts by weight per part of (b) below of an organic solvent having a boiling point between 25°C. and 250°C.: a. from about 55 to 95 weight percent of an ethylenically unsaturated monomer or mixture of monomers, and b. from about 45 to 5 weight percent of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, a hydroxyl equivalent weight of from 500 to 10,000 and containing a polymerizable carbon-to-carbon double bond, said weight percents of (a) and (b) being based on the total weight of (a) and (b).
Claim 3
Dependent Claim
26 words
The polymer 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 polymer of claim 1 wherein the ethylenically unsaturated monomer is a mixture of styrene and acrylonitrile.
Claim 5
Dependent Claim
12 words
The polymer of claim 1 wherein the ethylenically unsaturated monomer is styrene.
Claim 6
Dependent Claim
63 words
The polymer of claim 1 wherein the hydroxy-terminated organic compound is prepared by the reaction of from one to two moles of an organic compound having both ethylenic unsaturation and a hydroxyl, carboxyl or epoxy group with one 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 polymer 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 polymer 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 polymer of claim 1 wherein the ethylenically unsaturated monomer comprises from 60 to 80 weight percent based on the total weight of monomer and hydroxyterminated organic compound.
Claim 10
Dependent Claim
12 words
The polymer of claim 1 wherein the organic solvent is an alkanol.
Claim 11
Dependent Claim
10 words
The polymer of claim 1 wherein the alkanol is isopropanol.
Claim 12
Dependent Claim
140 words
A process for the preparation of a finelydivided dispersed solid comprising polymerizing at a temperature between 25°C. and 180°C. in the presence of from about 0.05 to 5.0 weight percent based on the weight of (a) below of a free radical catalyst and from about one part to nineteen parts by weight per part of (b) below of an organic solvent having a boiling point between 25°C. and 250°C.: a. from about 55 to 95 weight percent of an ethylenically unsaturated monomer or mixture of monomers and b. from about 45 to 5 weight percent of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, a hydroxyl equivalent weight of from 500 to 10,000 and containing a polymerizable carbon-to-carbon double bond, said weight percents of (a) and (b) being based on the total weight of (a) and (b).
Claim 13
Dependent Claim
140 words
A process for the preparation of a finelydivided dispersed solid comprising polymerizing at a temperature between 25°C. and 180°C. in the presence of from about 0.05 to 5.0 weight percent based on the weight of (a) below of a free radical catalyst and from about one part to nineteen parts by weight per part of (b) below of an organic solvent having a boiling point between 25°C. and 250°C.: a. from about 55 to 95 weight percent of an ethylenically unsaturated monomer or mixture of monomers and b. from about 45 to 5 weight percent of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, a hydroxyl equivalent weight of from 500 to 10,000 and containing a polymerizable carbon-to-carbon double bond, said weight percents of (a) and (b) being based on the total weight of (a) and (b).
Claim 14
Dependent Claim
26 words
The process of claim 11 wherein the ethylenically unsaturated monomer is selected from the group consisting of styrene, acrylonitrile, vinylidene chloride, methylmethacrylate, acrylamide and mixtures thereof.
Claim 15
Dependent Claim
17 words
The process of claim 11 wherein the ethylenically unsaturated monomer is a mixture of styrene and acrylonitrile.
Claim 16
Dependent Claim
12 words
The process of claim 11 wherein the ethylenically unsaturated monomer is styrene.
Claim 17
Dependent Claim
63 words
The process of claim 11 wherein the hydroxy-terminated organic compound is prepared by the reaction of from one to two moles of an organic compound having both ethylenic unsaturation and a hydroxyl, carboxyl or epoxy group with one 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 18
Dependent Claim
23 words
The process of claim 15 wherein the organic compound having both ethylenic unsaturation and a hydroxyl, carboxyl or epoxy group is maleic anhydride.
Claim 19
Dependent Claim
23 words
The process of claim 15 wherein the hydroxy-containing polyalkylene ether is an alkylene oxide adduct of trimethylolpropane, glycerol, propylene glycol and mixtures thereof.
Claim 20
Dependent Claim
28 words
The process of claim 11 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 21
Dependent Claim
12 words
The process of claim 11 wherein the organic solvent is an alkanol.
Claim 22
Dependent Claim
10 words
The process of claim 11 wherein the alkanol is isopropanol.
Claim 23
Dependent Claim
158 words
A process for the preparation of a finelydivided solid polymer comprising: a. polymerizing at a temperature between 25°C. and 180°C. in the presence of from about 0.05 to 5.0 weight percent based on the weight of (a) below of a free radical catalyst and from about one part to nineteen parts by weight per part of b. below of an organic solvent having a boiling point between 25°C. and 250°C.: 1. from about 55 to 95 weight percent of an ethylenically unsaturated monomer or mixture of monomers, and 2. from about 45 to 5 weight percent of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, a hydroxyl equivalent weight of from 500 to 10,000 and containing a polymerizable carbon-to-carbon double bond, said weight percents of (a) and (b) being based on the total weight of (a) and (b), to obtain a dispersed solid polymer, and b. separating said organic solvent from said dispersed solid polymer.
Claim 24
Dependent Claim
158 words
A process for the preparation of a finelydivided solid polymer comprising: a. polymerizing at a temperature between 25°C. and 180°C. in the presence of from about 0.05 to 5.0 weight percent based on the weight of (a) below of a free radical catalyst and from about one part to nineteen parts by weight per part of b. below of an organic solvent having a boiling point between 25°C. and 250°C.: 1. from about 55 to 95 weight percent of an ethylenically unsaturated monomer or mixture of monomers, and 2. from about 45 to 5 weight percent of a hydroxy-terminated organic compound having from one to eight hydroxyl groups, a hydroxyl equivalent weight of from 500 to 10,000 and containing a polymerizable carbon-to-carbon double bond, said weight percents of (a) and (b) being based on the total weight of (a) and (b), to obtain a dispersed solid polymer, and b. separating said organic solvent from said dispersed solid polymer.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-05 | 1979-07-07 | 1980-01-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-05 | 1983-07-07 | 1984-01-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-05 | 1987-07-07 | 1988-01-06 | $7700.00 | Window Closed / Lapsed |