US4939233A
Expired / Lapsed
US
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Aqueous polymer compositions and methods for their preparation
Assignee: Eastman Chemical Co
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Filing: 1988-12-05
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Granted: 1990-07-03
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Expires: 2008-12-05
Abstract
Abstract An aqueous dispersion comprising a polyester having repeat units from at least one difunctional sulfomonomer containing at least one metal sulfonate group attached to an aromatic nucleus wherein the functional groups are carboxyl or hydroxyl, and a polymer having a majority of repeat units from vinyl acetate, wherein this polymer is formed from monomers polymerized in an aqueous dispersion of said polyesters.
Inventors
- 👤 Waylon L. Jenkins
- 👤 Kenneth R. Barton
- 👤 Harold L. Jaffe
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 21:58
CPC Classifications
C; C08; C08F; C08F283/00; C08F283/02; C08L; C08L67/00; C08L67/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
152 words
An aqueous dispersion comprising a polyester (A) consisting essentially of repeat units from (a) at least one difunctional aromatic, saturated aliphatic or saturated alicyclic dicarboxylic acid; (b) from about 4 to about 25 mole percent, based on a total of all acid and hydroxyl monomer being equal to 200 mole percent, of at least one difunctional sulfomonomer containing at least one metal sulfonate-group attached to an aromatic nucleus wherein the functional groups are hydroxyl or carboxyl; and (c) at least one glycol; and a polymer (B) having repeat units from about 50 to 100 a weight percent vinyl acetate, said aqueous dispersion having been prepared by polymerizing monomers to form said polymer (B) in an aqueous dispersion of said polyester (A), and said aqueous dispersion containing about 50-95% of said polymer (B) and about 50-5% of said polyester (A) both said percentages being based on the combined weight of (A) and (B).
Claim 2
Dependent Claim
152 words
An aqueous dispersion comprising a polyester (A) consisting essentially of repeat units from (a) at least one difunctional aromatic, saturated aliphatic or saturated alicyclic dicarboxylic acid; (b) from about 4 to about 25 mole percent, based on a total of all acid and hydroxyl monomer being equal to 200 mole percent, of at least one difunctional sulfomonomer containing at least one metal sulfonate-group attached to an aromatic nucleus wherein the functional groups are hydroxyl or carboxyl; and (c) at least one glycol; and a polymer (B) having repeat units from about 50 to 100 a weight percent vinyl acetate, said aqueous dispersion having been prepared by polymerizing monomers to form said polymer (B) in an aqueous dispersion of said polyester (A), and said aqueous dispersion containing about 50-95% of said polymer (B) and about 50-5% of said polyester (A) both said percentages being based on the combined weight of (A) and (B).
Claim 3
Dependent Claim
12 words
The aqueous dispersion of claim 1 wherein said sulfomonomer is sodiosulfoisophthalic acid.
Claim 4
Dependent Claim
13 words
The aqueous dispersion of claim 1 wherein said dicarboxylic acid comprises isophthalic acid.
Claim 5
Dependent Claim
13 words
The aqueous dispersion of claim 1 wherein said glycol comprises a poly(ethylene glycol).
Claim 6
Dependent Claim
46 words
An aqueous dispersion of claim 1 wherein said polyester has repeat units from isophthalic acid, sodiosulfoisophthalic acid, diethylene glycol and another glycol selected from at least one of ethylene glycol and 1,4-cyclohexanedimethanol, and another polymer containing at least 50 weight percent repeat units from vinyl acetate.
Claim 7
Dependent Claim
20 words
The aqueous dispersion of claim 1 wherein said aqueous dispersion has a total solids content of about 30% to 65%.
Claim 8
Dependent Claim
51 words
The aqueous dispersion of claim 1 wherein said polymer (B) comprises repeating units from 0 to about 50 weight % of one or more comonomers selected from the group consisting of ethylene, acrylic acid, methacrylic acid, acrylic and methacrylic acid esters, acrylamides, unsaturated dicarboxylic acid diesters, vinyl chloride and maleic anhydride.
Claim 9
Dependent Claim
35 words
The dispersion of claim 1 wherein said polymer (B) comprises repeating units from 0 to about 50 weight % of one or more comonomers selected from ethylene, acrylic acid ester and unsaturated dicarboxylic acid diesters.
Claim 10
Independent Claim
155 words
The method of preparing an aqueous polymer dispersion which comprises (I) forming an aqueous dispersion having (1) about 5% to about 35% of a polyester having an I.V. of at least 0.1 and consisting essentially of repeat units from (a) at least one aromatic, saturated aliphatic or saturated alicyclic dicarboxylic acid, (b) from about 4 to about 25 mol %, based on the total of all acid and hydroxyl monomers being equal to 200 mol %, of at least one difunctional sulfomonomer containing at least one metal sulfonate-group attached to an aromatic nucleous wherein the functional groups are hydroxyl or carboxyl, and (c) at least one glycol, and (2) at least one vinyl monomer of which about 50 to 100 weight % is vinyl acetate, (II) polymerizing said vinyl monomers in said aqueous dispersion, to thereby obtain an aqueous dispersion of a blend of polymers with a total solids content of up to about 65%.
Claim 11
Independent Claim
155 words
The method of preparing an aqueous polymer dispersion which comprises (I) forming an aqueous dispersion having (1) about 5% to about 35% of a polyester having an I.V. of at least 0.1 and consisting essentially of repeat units from (a) at least one aromatic, saturated aliphatic or saturated alicyclic dicarboxylic acid, (b) from about 4 to about 25 mol %, based on the total of all acid and hydroxyl monomers being equal to 200 mol %, of at least one difunctional sulfomonomer containing at least one metal sulfonate-group attached to an aromatic nucleous wherein the functional groups are hydroxyl or carboxyl, and (c) at least one glycol, and (2) at least one vinyl monomer of which about 50 to 100 weight % is vinyl acetate, (II) polymerizing said vinyl monomers in said aqueous dispersion, to thereby obtain an aqueous dispersion of a blend of polymers with a total solids content of up to about 65%.
Claim 12
Dependent Claim
11 words
The method of claim 9 wherein said sulfomonomer is sodiosulfoisophthalic acid.
Claim 13
Dependent Claim
12 words
The method of claim 9 wherein said dicarboxylic acid comprises isophthalic acid.
Claim 14
Dependent Claim
12 words
The method of claim 9 wherein said glycol comprises a poly(ethylene glycol).
Claim 15
Dependent Claim
45 words
A method of claim 9 wherein said polyester has repeat units from isophthalic acid, sodiosulfoisophthalic acid, diethylene glycol and another glycol selected from at least one of ethylene glycol and 1,4-cyclohexanedimethanol, and another polymer containing at least 50 weight percent repeat units from vinyl acetate.
Claim 16
Dependent Claim
50 words
The method of claim 9 wherein said polymer (B) comprises repeating units from 0 to about 50 weight % of one or more comonomers selected from the group consisting of ethylene, acrylic acid, methacrylic acid, acrylic and methacrylic acid esters, acrylamides, unsaturated dicarboxylic acid diesters, vinyl chloride and maleic anhydride.
Claim 17
Dependent Claim
34 words
The method of claim 9 wherein said polymer comprises repeating units from 0 to about 50 weight % of one or more comonomers selected from ethylene, acrylic acid esters and unsaturated dicarboxylic acid diesters.
Claim 18
Dependent Claim
15 words
A substrate having a coating comprising the solids residue from the dispersion of claim 1.
References Cited (Backward Citations)
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| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
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| 3.5 Years (Year 4) | 1993-07-02 | 1994-01-01 | 1994-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-07-02 | 1998-01-01 | 1998-07-03 | $3760.00 | Window Closed / Lapsed |
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