Patent US4220568A successfully refreshed from Google Patents.
US4220568A
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Polyester containing carboxyl groups, a process for producing this polyester and aqueous coating compositions containing this polyester
Assignee: Axalta Coating Systems Germany GmbH and Co KG
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Filing: 1979-04-13
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Granted: 1980-09-02
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Expires: 1999-04-13
Abstract
Abstract A carboxyl-group-containing polyester having an acid number of from 30 to 150, a hydroxyl number of from 20 to 150 and a Patton alkyd constant of from 0.9 to 1.2 which contain in co-condensed form (a) saturated alcohols selected from the group consisting of dihydric aliphatic, polyhydric aliphatic, dihydric cycloaliphatic, and polyhydric cycloaliphatic alcohols, (b) dicarboxylic acids selected from the group consisting of aliphatic, aromatic and cycloaliphatic dicarboxylic acids, (c) cyclic carboxylic acids selected from the group consisting of tribasic and polybasic cyclic carboxylic, characterized in that of the co-condensed compounds (c), which are only attached to the polyester through a carboxyl group, at least one other carboxyl group is condensed with a compound selected from the group consisting of aliphatic monoalcohols having from 3 to 20 carbon atoms, cycloaliphatic monoalcohols having from 3 to 20 carbon atoms and secondary amines containing from 6 to 36 carbon atoms, a process for its preparation, and an aqueous coating composition containing it.
Inventors
- 👤 Hans-Peter Patzschke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:18
CPC Classifications
C; C09; C09D; C09D167/00; C08; C08G; C08G18/00; C08G18/06; C08G18/08; C08G18/0804; C08G18/0819; C08G18/0823; C08G18/28; C08G18/40; C08G18/42; C08G18/4263; C08G63/00; C08G63/02; C08G63/12; C08G63/123; C08G63/16; C08G63/20; C08G63/46; C09D175/00; C09D175/04; C09D175/06
Claims Analysis
Total Claims: 44
Claim 1
Independent Claim
149 words
A carboxyl-group-containing polyester resin having an acid number of from 30 to 150, a hydroxyl number of from 20 to 150 and a Patton alkyd constant of from 0.9 to 1.2 which contains to co-condensed form: (a) Saturated alcohols selected from the group consisting of dihydric aliphatic, polyhydric aliphatic dihydric, cycloaliphatic and polyhydric cycloaliphatic alcohols, (b) dicarboxylic acids selected from the group consisting of aliphatic, aromatic and cycloaliphatic dicarboxylic acids, (c) cyclic carboxylic acids selected from the group consisting of tribasic and polybasic cyclic carboxylic acids, characterised in that of the co-condensed compounds (c), which are only attached to the polyester through a carboxyl group, at least one other carboxyl group is condensed with compound selected from the group consisting of aliphatic monoalcohols having from 3 to 20 carbon atoms, cycloaliphatic monoalcohols containing from 3 to 20 carbon atoms and secondary amines containing from 6 to 36 carbon atoms.
Claim 2
Dependent Claim
149 words
A carboxyl-group-containing polyester resin having an acid number of from 30 to 150, a hydroxyl number of from 20 to 150 and a Patton alkyd constant of from 0.9 to 1.2 which contains to co-condensed form: (a) Saturated alcohols selected from the group consisting of dihydric aliphatic, polyhydric aliphatic dihydric, cycloaliphatic and polyhydric cycloaliphatic alcohols, (b) dicarboxylic acids selected from the group consisting of aliphatic, aromatic and cycloaliphatic dicarboxylic acids, (c) cyclic carboxylic acids selected from the group consisting of tribasic and polybasic cyclic carboxylic acids, characterised in that of the co-condensed compounds (c), which are only attached to the polyester through a carboxyl group, at least one other carboxyl group is condensed with compound selected from the group consisting of aliphatic monoalcohols having from 3 to 20 carbon atoms, cycloaliphatic monoalcohols containing from 3 to 20 carbon atoms and secondary amines containing from 6 to 36 carbon atoms.
Claim 3
Dependent Claim
29 words
A polyester according to claim 1, characterised in that the co-condensed compounds (a) have sterically hindered alcohol groups selected from the group consisting of primary and secondary alcohol groups.
Claim 4
Dependent Claim
24 words
A polyester according to claim 1, characterised in that it contains from 0.3 to 3.0 milliequivalents of co-condensed compounds (b) per gramme of resin.
Claim 5
Dependent Claim
24 words
A polyester according to claim 1, characterised in that it contains from 0.5 to 2.5 milliequivalents of co-condensed compounds (b) per gramme of resin.
Claim 6
Dependent Claim
33 words
A polyester according to claim 1, characterised in that, of the co-condensed compounds (c) from 0.8 to 2.0 millimoles per gramme of resin are attached to the polyester through only one carboxyl group.
Claim 7
Dependent Claim
33 words
A polyester according to claim 1, characterised in that, of the co-condensed compounds (c), from 0.9 to 1.8 millimoles per gramme of resin are attached to the polyester through only one carboxyl group.
Claim 8
Dependent Claim
33 words
A polyester according to claim 1, characterised in that, of the co-condensed compounds (c), from 1.1 to 1.5 millimoles per gramme of resin are attached to the polyester through only one carboxyl group.
Claim 9
Dependent Claim
55 words
A polyester according to claim 1, characterised in that, the co-condensed compounds (b) are selected from the group consisting of aliphatic saturated dicarboxylic acids and dimerised unsaturated fatty acids and are present in a quantity of up to 20mole % based on the total sum of the molar numbers of all the carboxylic acids present.
Claim 10
Dependent Claim
55 words
A polyester according to claim 1, characterised in that, the co-condensed compounds (b) are selected from the group consisting of aliphatic saturated dicarboxylic acids and dimerised unsaturated fatty acids, and are present in a quantity of up to 10mole % based on the total sum of the molar numbers of all the carboxylic acids present.
Claim 11
Dependent Claim
15 words
A polyester according to claim 1, characterised in that, co-condensed compound (b) is adipic acid.
Claim 12
Dependent Claim
19 words
A polyester according to claim 1, characterised in that the co-condensed compounds (b) are selected from monocyclic dicarboxylic acids.
Claim 13
Dependent Claim
25 words
A polyester according to claim 1, characterised in that the co-condensed compounds (b) are selected from monocyclic carboxylic acids which do not form intramolecular anhydrides.
Claim 14
Dependent Claim
19 words
A polyester according to claim 1, characterised in that the co-condensed compounds (c) are selected from monocyclic carboxylic acids.
Claim 15
Dependent Claim
19 words
A polyester according to claim 1, characterised in that the co-condensed compounds (c) are selected from benzene carboxylic acids.
Claim 16
Dependent Claim
16 words
A polyester according to claim 1, characterised in that co-condensed compound (c) is trimellitic acid (anhydride).
Claim 17
Dependent Claim
19 words
A polyester according to claim 1, characterised in that it has an acid number of from 35 to 100.
Claim 18
Dependent Claim
19 words
A polyester according to claim 1, characterised in that it has an acid number of from 40 to 60.
Claim 19
Dependent Claim
31 words
A polyester according to claim 1, characterised in that it has a viscosity of from 200 to 3000 mPas, as measured on a 50% solution in butyl glycol at 25° C.
Claim 20
Dependent Claim
31 words
A polyester according to claim 1, characterised in that it has a viscosity of from 300 to 1500 mPas, as measured on a 50% solution in butyl glycol at 25° C.
Claim 21
Dependent Claim
19 words
A polyester according to claim 1, characterised in that it has a hydroxyl number of from 30 to 90.
Claim 22
Dependent Claim
21 words
A polyester as claimed in claim 1, characterised in that it has a Patton Alkyd constant of from 0.93 to 1.05.
Claim 23
Dependent Claim
19 words
A polyester according to claim 1, characterised in that is has a Patton Alkyd constant from 0.94 to 1.00.
Claim 24
Dependent Claim
176 words
A process for the production of carboxyl-group-containing polyester resins having an acid number of from 30 to 150, a hydroxyl number of from 20 to 150 and a Patton alkyd constant of from 0.9 to 1.2, by polycondensing: (a) saturated alcohols selected from the group consisting of dihydric aliphatic, polyhydric aliphatic dihydric cycloaliphatic and polyhydride cycloaliphatic alcohols, (b) dicarboxylic acids selected from the group consisting of aliphatic, aromatic and cycloaliphatic dicarboxylic acids. (c) cyclic carboxylic acids selected from the group consisting of tribasic and polybasic cyclic carboxylic acids, characterised in that, of 50 to 100 mole % of the cyclic carboxylic acids selected from the group consisting of tribasic and polybasic cyclic carboxylic acids, at least one carboxyl group, but not all the carboxyl groups of the same acid molecule are partially condensed with aliphatic compounds selected from the groups consisting of monoalcohols having from 3 to 20 carbon atoms, cycloaliphatic monoalcohols containing from 3 to 20 carbon atoms and secondary amines containing from 3 to 6 carbon atoms and reacted with the other starting products.
Claim 25
Dependent Claim
176 words
A process for the production of carboxyl-group-containing polyester resins having an acid number of from 30 to 150, a hydroxyl number of from 20 to 150 and a Patton alkyd constant of from 0.9 to 1.2, by polycondensing: (a) saturated alcohols selected from the group consisting of dihydric aliphatic, polyhydric aliphatic dihydric cycloaliphatic and polyhydride cycloaliphatic alcohols, (b) dicarboxylic acids selected from the group consisting of aliphatic, aromatic and cycloaliphatic dicarboxylic acids. (c) cyclic carboxylic acids selected from the group consisting of tribasic and polybasic cyclic carboxylic acids, characterised in that, of 50 to 100 mole % of the cyclic carboxylic acids selected from the group consisting of tribasic and polybasic cyclic carboxylic acids, at least one carboxyl group, but not all the carboxyl groups of the same acid molecule are partially condensed with aliphatic compounds selected from the groups consisting of monoalcohols having from 3 to 20 carbon atoms, cycloaliphatic monoalcohols containing from 3 to 20 carbon atoms and secondary amines containing from 3 to 6 carbon atoms and reacted with the other starting products.
Claim 26
Dependent Claim
30 words
A process according to claim 23, characterised in that components (a) and (b) are initially reacted to form an OH--containing polyester which is then polycondensed with the other starting products.
Claim 27
Dependent Claim
29 words
A process according to claim 23, characterised in that the co-condensed compounds (a) have sterically hindered alcohol groups selected from the group consisting of primary and secondary alcohol groups.
Claim 28
Dependent Claim
23 words
A process according to claim 23, characterised in that from 0.3 to 3.0 milliequivalents of component (b) are co-condensed per gramme of resin.
Claim 29
Dependent Claim
23 words
A process according to claim 23, characterised in that from 0.5 to 2.5 milliequivalents of component (b) are co-condensed per gramme of resin.
Claim 30
Dependent Claim
32 words
A process according to claim 23, characterised in that, of the compounds (c), from 0.8 to 2.0 millimoles, per gramme of resin are attached to the polyester through only one carboxyl group.
Claim 31
Dependent Claim
32 words
A process according to claim 23, characterised in that, of the compounds (c), from 0.9 to 1.8 millimoles per gramme of resin are attached to the polyester through only one carboxyl group.
Claim 32
Dependent Claim
32 words
A process according to claim 23, characterised in that, of the compounds (c), from 1.2 to 1.5 millimoles per gramme of resin are attached to the polyester through only one carboxyl group.
Claim 33
Dependent Claim
54 words
A process according to claim 23, characterised in that, the compounds (b) are selected from the group consisting of aliphatic saturated dicarboxylic acids and dimersed unsaturated fatty acids and are used in a quantity of up to 20 mole % based on the total sum of the molar numbers of all the carboxylic acids.
Claim 34
Dependent Claim
54 words
A process according to claim 23, characterised in that, the compounds (b) are selected from the group consisting of aliphatic saturated dicarboxylic acids, and dimerised unsaturated fatty acids and are used in a quantity of up to 10 mole % based on the total sum of the molar numbers of all the carboxylic acids.
Claim 35
Dependent Claim
14 words
A process according to claim 23, characterised in that, component (b) is adipic acid.
Claim 36
Dependent Claim
30 words
A process according to claim 23, characterised in that, the compounds (b) are selected from the group consisting of monocyclic dicarboxylic acids which preferably do not form an intramolecular anhydride.
Claim 37
Dependent Claim
17 words
A process according to claim 23, characterised in that, the compound (c) used is trimellitic acid (anhydride).
Claim 38
Dependent Claim
20 words
A process according to claim 23, characterised in that, the polyester has an acid number of from 35 to 100.
Claim 39
Dependent Claim
19 words
A process according to claim 23, characterised in that, the polyester has a viscosity of from 40 to 60.
Claim 40
Dependent Claim
31 words
A process according to claim 23, characterised in that, the polyester has a viscosity of from 200 to 3000, as measured on a 50% solution in butyl glycol at 25° C.
Claim 41
Dependent Claim
32 words
A process according to claim 23, characterised in that, the polyester has a viscosity of from 300 to 1500 mPas as measured on a 50% solution in butyl glycol at 25° C.
Claim 42
Dependent Claim
20 words
A process according to claim 23, characterised in that, the polyester has a hydroxyl number of from 30 to 90.
Claim 43
Dependent Claim
21 words
A process according to claim 23, characterised in that the polyester has a Patton alkyd constant of from 0.93 to 1.05.
Claim 44
Dependent Claim
21 words
A process according to claim 23, characterised in that the polyester has a Patton alkyd constant of from 0.94 to 1.00.
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) | 1983-09-02 | 1984-03-03 | 1984-09-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-09-02 | 1988-03-03 | 1988-09-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-09-02 | 1992-03-03 | 1992-09-02 | $7700.00 | Window Closed / Lapsed |