Patent US4946932A successfully refreshed from Google Patents.
US4946932A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water-dispersible polyester blends
Assignee: Eastman Chemical Co
•
Filing: 1988-12-05
•
Granted: 1990-08-07
•
Expires: 2008-12-05
Abstract
Abstract A method of preparing water-dispersed polymer blends, comprising the steps of: (i) preparing an aqueous polymerization mixture by adding to water, a sulfonate group-containing polyester or polyesteramide, one or more α,β-unsaturated monomers and a polymerization initiator; and (ii) polymerizing said polymerization mixture to provide said water-dispersed polymer blend. Also disclosed is an aqueous dispersion of a polymer blend, comprising an aqueous dispersion having a solids content of about 30% to 65% of a polyester or polyesteramide blend comprising a sulfonate group-containing polyester or polyesteramide and a polymer comprising repeat units from one or more α,β-unsaturated monomers.
Inventors
- 👤 Waylon L. Jenkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 21:19
CPC Classifications
C; C08; C08G; C08G69/00; C08G69/44; C08F; C08F2/00; C08F2/12; C08F2/16; C08F2/22; C08F2/24; C08F2/26; C08F283/00; C08F283/02; C08F283/04; C08G63/00; C08G63/68; C08G63/688; C08G63/6884; C08G63/6888; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31551; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 19
Claim 1
Independent Claim
151 words
A method of preparing water-dispersed polymer blends, comprising the steps of: (i) preparing an aqueous polymerization mixture by adding to water, a water-dispersible sulfonate group-containing polyester or polyesteramide, one or more α,β-unsaturated monomers and a polymerization initiator said polyester or polyesteramide 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, hydroxyl and amino equivalents 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 hydroxy, carboxyl or amino; and (c) at least one glycol or a mixture of a glycol and a diamine having two -NRH groups, the glycol containing two -CH 2 -OH groups, and (ii) polymerizing said monomers to provide said water-dispersed polymer blend.
Claim 2
Independent Claim
151 words
A method of preparing water-dispersed polymer blends, comprising the steps of: (i) preparing an aqueous polymerization mixture by adding to water, a water-dispersible sulfonate group-containing polyester or polyesteramide, one or more α,β-unsaturated monomers and a polymerization initiator said polyester or polyesteramide 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, hydroxyl and amino equivalents 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 hydroxy, carboxyl or amino; and (c) at least one glycol or a mixture of a glycol and a diamine having two -NRH groups, the glycol containing two -CH 2 -OH groups, and (ii) polymerizing said monomers to provide said water-dispersed polymer blend.
Claim 3
Dependent Claim
15 words
The method of claim 1, wherein said monomers include an acrylic or methacrylic acid ester.
Claim 4
Dependent Claim
17 words
The method of claim 2, wherein said ester is a C 1-20 acrylic or methacrylic acid ester.
Claim 5
Dependent Claim
16 words
The method of claim 1, wherein said monomers include a vinyl C 1-6 carboxylic acid ester.
Claim 6
Dependent Claim
11 words
The method of claim 4, wherein said ester is vinyl acetate.
Claim 7
Dependent Claim
18 words
The method of claim 5, wherein said monomer comprises a mixture of a vinyl ester and an olefin.
Claim 8
Dependent Claim
28 words
The method of claim 1, wherein one or more of said monomers is selected from the group consisting of styrene, acrylonitrile vinyl chloride, hydroxyethylmethacrylate, toacetoxyethylmethacrylate, and vinyl acetate.
Claim 9
Dependent Claim
25 words
The method of claim 1, wherein said polymerization initiator is selected from the group consisting of sodium persulfate, AIBN, benzoyl peroxide and sodium bisulfate/sodium metabisulfite.
Claim 10
Dependent Claim
21 words
The method of claim 1, wherein said sulfonate group containing polyester or polyesteramide has an inherent viscosity of 0.2 to 0.5.
Claim 11
Dependent Claim
37 words
The method of claim 1, wherein said blend contains about 1 to 95 weight % polyester or polyesteramide and about 99 to 5 weight % monomer, said weights being based on the total polymer and monomer weights.
Claim 12
Dependent Claim
24 words
The method of claim 1, wherein said polyester or polyesteramide is a polyester comprising repeat units from isophthalic acid, sodiosulfo-isophthalic acid, and diethylene glycol.
Claim 13
Dependent Claim
160 words
A composition of matter comprising: an aqueous dispersion having a total solids content of about 30% to 65% of a polymer blend, said blend comprising about 1 to 95 weight % of a sulfonate group-containing polyester or polyesteramide and about 99 to 5 weight % of a polymer comprising repeat units from one or more α,β-unsaturated monomers said polyester or polyesteramide 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, hydroxyl and amino equivalents 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 hydroxy, carboxyl or amino; and (c) at least one glycol or a mixture of a glycol and a diamine having two -NRH groups, the glycol containing two -CH 2 -OH groups.
Claim 14
Dependent Claim
160 words
A composition of matter comprising: an aqueous dispersion having a total solids content of about 30% to 65% of a polymer blend, said blend comprising about 1 to 95 weight % of a sulfonate group-containing polyester or polyesteramide and about 99 to 5 weight % of a polymer comprising repeat units from one or more α,β-unsaturated monomers said polyester or polyesteramide 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, hydroxyl and amino equivalents 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 hydroxy, carboxyl or amino; and (c) at least one glycol or a mixture of a glycol and a diamine having two -NRH groups, the glycol containing two -CH 2 -OH groups.
Claim 15
Dependent Claim
35 words
The dispersion of claim 12, wherein said monomers comprise monomers selected from the group consisting of acrylic and methacrylic acid esters, vinyl carboxylic acid esters, unsaturated dicarboxylic acid diesters, styrene, vinyl chloride and vinylidene chloride.
Claim 16
Dependent Claim
49 words
The dispersion of claim 12, wherein said monomers are selected from the group consisting of C 1-20 alkyl acrylate and methacrylate esters, vinyl esters of C 1-6 carboxylic acids, ethylene, styrene, α-methyl styrene, ethyl styrene, acrylonitrile, acrylic acid, methacrylic acid, acetoacetoethyl methacrylate, acetoacetoxyethyl acrylate, vinyl chloride and vinylidene chloride.
Claim 17
Dependent Claim
15 words
The dispersion of claim 12, comprising a total solids content of about 30% to 65%.
Claim 18
Dependent Claim
15 words
The dispersion of claim 12, comprising a total solids content of about 40% to 55%.
Claim 19
Dependent Claim
24 words
The dispersion of claim 12, wherein said polyester or polyesteramide is a polyester comprising repeat units from isophthalic acid, sodiosulfoisophthalic acid and diethylene glycol.
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) | 1993-08-06 | 1994-02-05 | 1994-08-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-08-06 | 1998-02-05 | 1998-08-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-08-06 | 2002-02-05 | 2002-08-07 | $7700.00 | Window Closed / Lapsed |