Patent US4104262A successfully refreshed from Google Patents.
US4104262A
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Water-dispersible ester resin containing a moiety of polyacid or bivalent alcohol containing a sulfo group
Assignee: Dynamit Nobel AG
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Filing: 1976-04-08
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Granted: 1978-08-01
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Expires: 1996-04-08
Abstract
Abstract A water-dispersible polycondensation polyester resin having moieties of at least one polycarboxylic acid and at least one polyvalent alcohol having a terminal hydroxyl group, said polyester having a molecular weight between 300 and 3,000, a softening point between 30° and 60° C, said polyester additionally containing an amount of 1 to 5 mole percent based upon the moieties of polycarboxylic acid or polyvalent alcohol; moieties of an alkali metal-sulfo group containing polycarboxylic acid or polyvalent alcohol; aqueous dispersions of such water-dispersible polyester resin and the use of such water dispersions as baked upon lacquer compositions.
Inventors
- 👤 Gerhard Schade
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 18:12
CPC Classifications
C; C09; C09D; C09D167/00; C09D167/02; C08; C08G; C08G63/00; C08G63/68; C08G63/688; C08G63/6884; C08G63/6886
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
94 words
A water-dispersible polycondensation polyester resin having moieties of at least one dicarboxylic acid and at least one bivalent alcohol having terminal hydroxyl groups, said polyester having a molecular weight between 300 and 3,000, a softening point between 30° and 60° C, a hydroxyl number of at least 35 mg KOH/g, an acid number of less than 5 wherein said polyester additionally contains an amount of 1 to 5 mole percent, based upon the moieties of polycarboxylic acid or bivalent alcohol, moieties of an alkali metal - sulfo group containing polycarboxylic acid or bivalent alcohol.
Claim 2
Dependent Claim
94 words
A water-dispersible polycondensation polyester resin having moieties of at least one dicarboxylic acid and at least one bivalent alcohol having terminal hydroxyl groups, said polyester having a molecular weight between 300 and 3,000, a softening point between 30° and 60° C, a hydroxyl number of at least 35 mg KOH/g, an acid number of less than 5 wherein said polyester additionally contains an amount of 1 to 5 mole percent, based upon the moieties of polycarboxylic acid or bivalent alcohol, moieties of an alkali metal - sulfo group containing polycarboxylic acid or bivalent alcohol.
Claim 3
Dependent Claim
34 words
A polyester according to claim 1 wherein said polyester contains 1 to 5 mole percent of an alkali metal-sulfo group containing dicarboxylic acid, based upon the number of dicarboxylic acid groups in said polyester.
Claim 4
Dependent Claim
34 words
A polyester according to claim 1 wherein said polyester contains 1 to 5 mole percent of an alkali metal-sulfo containing bivalent alcohol, based upon the number of moieties of bivalent alcohol in said polyester.
Claim 5
Dependent Claim
34 words
A polyester according to claim 1 wherein said polyester contains 2 to 4 mole percent of an alkali metal-sulfo group containing dicarboxylic acid based upon the number of dicarboxylic acid groups in said polyester.
Claim 6
Dependent Claim
36 words
A polyester resin according to claim 1 wherein said polyester contains 2 to 4 mole percent of an alkali metal-sulfo group containing bivalent alcohol, based upon the number of moieties of bivalent alcohol in said polyester.
Claim 7
Dependent Claim
16 words
A polyester resin according to claim 1 wherein the polyester has a molecular weight below 2,000.
Claim 8
Dependent Claim
54 words
A polyester according to claim 1 wherein the moities of polycarboxylic acid free of alkali metal - sulfo groups are dicarboxylic acids and are selected from the group consisting of moieties of 1,2-benzenedicarboxylic acid, moieties of 1,3-benzenedicarboxylic acid, moieties of 1,4-dicarboxylic acid and moieties of alkane dicarboxylic acids having 4 to 36 carbon atoms.
Claim 9
Dependent Claim
51 words
A polyester according to claim 7 wherein the moieties of dicarboxylic acid free of alkali metal - sulfo groups are moieties of an alkanedicarboxylic acid having 4 to 36 carbon atoms which is selected from the group consisting of adipic acid, azelaic acid, sebaic acid, maleic acid and dimeric fatty acids.
Claim 10
Dependent Claim
14 words
A polyester according to claim 1 having an acid number of 0 to 2.
Claim 11
Dependent Claim
30 words
A polyester according to claim 1 wherein the bivalent alcohols are selected from the group consisting of ethylene glycol, 1,2-propylene glycol, 1,3-butylene glycol, 1,4-butylene glycol, 2,2-dimethylpropanediol-1,3, 3-hydroxy-2,2-dimethylpropylhydroxylpivalate, 2-ethylhexanediol-1,3, and 2,2-dimethylpentanediol-1,3.
Claim 12
Dependent Claim
16 words
A polyester according to claim 1 containing a moiety of the sodium salt of benzene-5-sulfo-1,3-dicarboxylic acid.
Claim 13
Dependent Claim
9 words
An aqueous dispersion of the polyester of claim 1.
Claim 14
Dependent Claim
21 words
An aqueous dispersion according to claim 12 wherein the polyester is present in an amount of 70 to 20 weight percent.
Claim 15
Dependent Claim
9 words
A polyester according to claim 12 containing a pigment.
Claim 16
Dependent Claim
24 words
A polyester resin according to claim 1 which is dispersible in water in an amount of 20 to 70 weight percent at 25° C.
Claim 17
Dependent Claim
22 words
A water-dispersible polycondensation polyester according to claim 1 containing more than 50 mol percent of one or more isomeric benzene dicarboxylic acids.
Claim 18
Dependent Claim
14 words
A polyester according to claim 16 additionally containing one or more alkane dicarboxylic acids.
Claim 19
Dependent Claim
26 words
A polyester according to claim 1 having an acid number of 0 to 1 mg KOH/g and a hydroxyl number between 40 and 70 mg KOH/g.
Claim 20
Dependent Claim
36 words
A polyester according to claim 1 wherein the acid moieties comprise a mixture of dimethyl terephthalate, sodium sulfodimethylisophthalate, isophthalic acid and sebacic acid and the bivalent alcohol moieties comprise a mixture of ethylene glycol and neopentylglycol.
Claim 21
Dependent Claim
34 words
A polyester according to claim 1 wherein the acid moieties comprise a mixture of dimethyl terephthalate, sodium sulfodimethylisophthalate and isophthalic acid and the bivalent alcohol moieties comprise a mixture of ethylene glycol and butane-1,3-diol.
Claim 22
Dependent Claim
36 words
A polyester according to claim 1 wherein the acid moieties comprise a mixture of dimethyl terephthalate, sodium sulfodimethylisophthalate, isophthalic acid and azelaic acid and the bivalent alcohol moieties comprise a mixture of ethylene glycol and propylene-1,2-diol.
Claim 23
Dependent Claim
39 words
A polyester according to claim 1 wherein the acid moieties comprise a mixture of dimethyl terephthalate, sodium sulfodimethylisophthalate, isophthalic acid, adipic acid and maleic acid anhydride and the bivalent alcohol moieties comprise a mixture of ethylene glycol and noepentylglycol.
Claim 24
Dependent Claim
32 words
A polyester according to claim 1 wherein the acid moieties comprise a mixture of dimethyl terephthalate and sodium sulfodimethylisophthalate and the bivalent alcohol moieties comprise a mixture of ethylene glycol and neopentylglycol.
Claim 25
Dependent Claim
16 words
A polyester according to claim 1 wherein the hydroxyl number of 37 to 370 mg KOH/g.
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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) | 1981-07-31 | 1982-01-30 | 1982-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-31 | 1986-01-30 | 1986-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-31 | 1990-01-30 | 1990-08-01 | $7700.00 | Window Closed / Lapsed |