US5162420A
Expired / Lapsed
US
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Aqueous compositions based on acid-functional acrylic silanol polymers
Assignee: PPG Industries Ohio Inc
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Filing: 1991-05-22
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Granted: 1992-11-10
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Expires: 2011-05-22
Abstract
Abstract Disclosed is an aqueous composition containing a vinyl-type polymer product having hydrolyzable silyl groups which aqueous composition is stable at relatively high solids for such a composition and yet cures at relatively low temperatures upon the evaporation of water. More particularly, disclosed is a stable, aqueous, colloidal silica-free, dispersion or solution containing a solution-polymerized vinyl-type polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of the vinyl-type polymer. The vinyl-type polymer is characterized in that a composition consisting of at least 25 percent by weight of the polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius. Also disclosed is a stable, aqueous, colloidal silica-free, coating composition having a total organic resin solids content of greater than or equal to 25 percent by weight, at least 50 percent by weight of the total organic resin solids content consisting of the aforesaid solution-polymerized vinyl-type polymer.
Inventors
- 👤 Wen-Hsuan Chang
- 👤 Edward E. McEntire
- 👤 Marvin L. Kaufman
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 22:04
CPC Classifications
C; C09; C09D; C09D143/00; C09D143/04; C08; C08F; C08F230/00; C08F230/04; C08F230/08; C08F230/085
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
128 words
A stable, aqueous, colloidal silica-free, dispersion or solution containing a solution-polymerized vinyl-type polymer which is formed by addition polymerization of components in the presence of a vinyl polymerization initiator, the polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of said vinyl-type polymer, said vinyl-type polymer being further characterized in that a composition consisting of at least 25 percent by weight of said polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius.
Claim 2
Dependent Claim
128 words
A stable, aqueous, colloidal silica-free, dispersion or solution containing a solution-polymerized vinyl-type polymer which is formed by addition polymerization of components in the presence of a vinyl polymerization initiator, the polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of said vinyl-type polymer, said vinyl-type polymer being further characterized in that a composition consisting of at least 25 percent by weight of said polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius.
Claim 3
Dependent Claim
31 words
The aqueous dispersion or solution of claim 1 wherein the Si atoms of said hydrolyzable silyl groups are separated by at least two atoms from the backbone of said vinyl-type polymer.
Claim 4
Dependent Claim
42 words
The aqueous dispersion or solution of claim 1 wherein said solution polymerized vinyl-type polymer prior to dispersion in water has a number average molecular weight of less than or equal to 12,000 as determined by gel permeation chromatography utilizing a polystyrene standard.
Claim 5
Dependent Claim
51 words
The aqueous dispersion or solution of claim 1 wherein a 3 ml thick film of said aqueous dispersion or solution containing an amount of basic catalyst of from 0.1 to 3.0 milliequivalent/gram of polymer cures in air to a solvent resistant film at a temperature of less than 80 degrees Celsius.
Claim 6
Dependent Claim
28 words
The aqueous dispersion or solution of claim 4 wherein said film cures in air to a solvent resistant film at equal to or less than 25 degrees Celsius.
Claim 7
Dependent Claim
48 words
The aqueous dispersion or solution of claim 1 wherein said solution-polymerized vinyl-type polymer is prepared from the copolymerization of components comprising an ethylenically unsaturated silane monomer containing at least one hydrolyzable silyl group, an ethylenically unsaturated acid and/or anhydride thereof, and at least one other copolymerizable vinyl-type monomer.
Claim 8
Dependent Claim
58 words
The aqueous dispersion or solution of claim 1 wherein said solution-polymerized vinyl-type polymer is prepared from the copolymerization of components comprising an ethylenically unsaturated anhydride and at least one other copolymerizable vinyl-type monomer wherein amino functionality of an amino-functional compound containing at least one hydrolyzable silyl group has been reacted with an anhydride group of said vinyl-type polymer.
Claim 9
Dependent Claim
42 words
The aqueous dispersion or solution of claim 6 wherein said solution polymerized vinyl-type polymer prior to dispersion in water has a number average molecular weight of less than or equal to 12,000 as determined by gel permeation chromatography utilizing a polystyrene standard.
Claim 10
Dependent Claim
79 words
The aqueous dispersion or solution of claim 6 wherein said vinyl-type polymer is prepared from components comprising from 5 to 13 percent by weight of said ethylenically unsaturated acid and/or acid anhydride thereof, from 12 to 87 percent by weight of said other copolymerizable vinyl-type monomer, said percentages being based on the total weight of copolymerizable monomers used in the preparation of said vinyl-type polymer, and an amount of said ethylenically unsaturated silane monomer to provide said Si content.
Claim 11
Dependent Claim
22 words
The aqueous dispersion or solution of claim 9 wherein said unsaturated acid and/or acid anhydride comprises a carboxylic acid and/or acid anhydride.
Claim 12
Dependent Claim
46 words
The aqueous dispersion or solution of claim 9 containing at least a catalytically effective amount of a base for curing a wet film from said aqueous dispersion which is an amount of basic catalyst of from 0.1 to 3.0 milliequivalents/gram of the solution polymerized vinyl-type polymer.
Claim 13
Dependent Claim
158 words
A stable, aqueous, colloidal silica-free, coating composition having a total organic resin solids content of greater than or equal to 25 percent by weight, at least 50 percent by weight of said total organic resin solids content consisting of a solution-polymerized vinyl-type polymer which is formed by addition polymerization of components in the presence of a vinyl polymerization initiator, the polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of said vinyl-type polymer, said vinyl-type polymer being further characterized in that a composition consisting of at least 25 percent by weight of said polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius.
Claim 14
Dependent Claim
158 words
A stable, aqueous, colloidal silica-free, coating composition having a total organic resin solids content of greater than or equal to 25 percent by weight, at least 50 percent by weight of said total organic resin solids content consisting of a solution-polymerized vinyl-type polymer which is formed by addition polymerization of components in the presence of a vinyl polymerization initiator, the polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of said vinyl-type polymer, said vinyl-type polymer being further characterized in that a composition consisting of at least 25 percent by weight of said polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius.
Claim 15
Dependent Claim
29 words
The coating composition of claim 12 wherein the Si atoms of said hydrolyzable silyl groups are separated by at least two atoms from the backbone of said vinyl-type polymer.
Claim 16
Dependent Claim
40 words
The coating composition of claim 12 wherein said solution polymerized vinyl-type polymer prior to dispersion in water has a number average molecular weight of less than or equal to 12,000 as determined by gel permeation chromatography utilizing a polystyrene standard.
Claim 17
Dependent Claim
48 words
The coating composition of claim 12 wherein a 3 mil thick film of said composition containing an amount of basic catalyst of from 0.1 to 3.0 milliequivalent/gram of said vinyl-type polymer cures in air to a solvent resistant film at a temperature of less than 80 degrees Celsius.
Claim 18
Dependent Claim
26 words
The coating composition of claim 12 wherein said film cures in air to a solvent resistant film at equal to or less than 25 degrees Celsius.
Claim 19
Dependent Claim
46 words
The coating composition of claim 12 wherein said solution-polymerized vinyl-type polymer is prepared from the copolymerization of components comprising an ethylenically unsaturated silane monomer containing at least one hydrolyzable silyl group, an ethylenically unsaturated acid and/or anhydride thereof, and at least one other copolymerizable vinyl-type monomer.
Claim 20
Dependent Claim
56 words
The coating composition of claim 12 wherein said solution-polymerized vinyl-type polymer is prepared from the copolymerization of components comprising an ethylenically unsaturated anhydride and at least one other copolymerizable vinyl-type monomer wherein amino functionality of an amino-functional compound containing at least one hydrolyzable silyl group has been reacted with an anhydride group of said vinyl-type polymer.
Claim 21
Dependent Claim
40 words
The coating composition of claim 17 wherein said solution polymerized vinyl-type polymer prior to dispersion in water has a number average molecular weight of less than or equal to 12,000 as determined by gel permeation chromatography utilizing a polystyrene standard.
Claim 22
Dependent Claim
77 words
The coating composition of claim 17 wherein said vinyl-type polymer is prepared from components comprising from 5 to 13 percent by weight of said ethylenically unsaturated acid and/or acid anhydride thereof, from 12 to 87 percent by weight of said other copolymerizable vinyl-type monomer, said percentages being based on the total weight of copolymerizable monomers used in the preparation of said vinyl-type polymer, and an amount of said ethylenically unsaturated silane monomer to provide said Si content.
Claim 23
Dependent Claim
20 words
The coating composition of claim 20 wherein said unsaturated acid and/or acid anhydride comprises a carboxylic acid and/or acid anhydride.
Claim 24
Dependent Claim
25 words
The coating composition of claim 20 containing at least a catalytically effective amount of a base for curing a wet film from said aqueous dispersion.
Claim 25
Dependent Claim
154 words
A stable aqueous, colloidal silica free, dispersion or solution containing a solution-polymerized vinyl-type polymer which is formed by addition polymerization of components in the presence of a vinyl polymerization initiator, the polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of said vinyl-type polymer, said vinyl type polymer being further characterized in that a composition consisting of at least 25 percent by weight of said polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius, said vinyl type polymer being further characterized in that it is capable of forming a cured film in the absence of amino crosslinking resin.
Claim 26
Dependent Claim
154 words
A stable aqueous, colloidal silica free, dispersion or solution containing a solution-polymerized vinyl-type polymer which is formed by addition polymerization of components in the presence of a vinyl polymerization initiator, the polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight based on the total weight of said vinyl-type polymer, said vinyl type polymer being further characterized in that a composition consisting of at least 25 percent by weight of said polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius, said vinyl type polymer being further characterized in that it is capable of forming a cured film in the absence of amino crosslinking resin.
Claim 27
Dependent Claim
151 words
A stable, aqueous, colloidal silica-free, coating composition having a solution-polymerized vinyl-type polymer which is formed by addition polymerization of components in the presence of vinyl polymerization initiator, the polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight base on the total weight of said vinyl-type polymer, said vinyl type polymer being further characterized in that a composition consisting of at least 25 percent by weight of said polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius, said vinyl type polymer being further characterized in that it is capable of forming a cured film in the absence of amino crosslinking resin.
Claim 28
Dependent Claim
151 words
A stable, aqueous, colloidal silica-free, coating composition having a solution-polymerized vinyl-type polymer which is formed by addition polymerization of components in the presence of vinyl polymerization initiator, the polymer having acid functionality sufficient to provide an acid value of from 5 to 160 and having a hydroxyl value of less than or equal to 10 and sufficient hydrolyzable silyl groups to provide a Si content in the range of from 0.40 to 6.0 percent by weight base on the total weight of said vinyl-type polymer, said vinyl type polymer being further characterized in that a composition consisting of at least 25 percent by weight of said polymer in water remains stable in a closed container for at least 24 hours at a temperature of 48.9 degrees Celsius, said vinyl type polymer being further characterized in that it is capable of forming a cured film in the absence of amino crosslinking resin.
References Cited (Backward Citations)
US3729438A
Cited
US3814716A
Cited
US3706697A
Cited
US3951893A
Cited
US3966687A
Cited
US4097436A
Cited
US4267093A
Cited
US4399261A
Cited
JPS5967396A
Cited
EP0276469A1
Cited
EP0282000A2
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1995-11-10 | 1996-05-11 | 1996-11-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-11-10 | 2000-05-11 | 2000-11-10 | $3760.00 | Window Closed / Lapsed |
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