Patent US1728973A successfully refreshed from Google Patents.
US4133787A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Water soluble polyester resin
Assignee: SI Group Inc
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Filing: 1978-02-02
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Granted: 1979-01-09
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Expires: 1998-02-02
Abstract
Abstract Water soluble polyesters are prepared by reacting an aromatic dicarboxylic acid, a diol and a triol (the molar ratio of diol to triol being 75:25 to 40:60) with or without a monohydric alcohol. The polyesters have a molecular weight of 800 to 1300, an OH/COOH ratio of 1.8:1 to 3:1. The polyesters are useful in making wire enamels.
Inventors
- 👤 Deno Laganis
- 👤 Paul M. Begley
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:51
CPC Classifications
H; H01; H01B; H01B3/00; H01B3/18; H01B3/30; H01B3/42; H01B3/421; C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C08K; C08K5/00; C08K5/16; C08K5/17; C08K5/34; C09; C09D; C09D167/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31678; Y10T428/31681
Claims Analysis
Total Claims: 38
Claim 1
Independent Claim
157 words
A solution of a thermosetting polyester in water or water containing a water miscible polar solvent, said polar solvent being present in an amount up to 30%, said solution also containing an amine and an organic titanate which is hydrolytically stable as a curing agent for the polyester, said polyester having a molecular weight of 800 to 1300, an OH/COOH ratio of 1.8:1 to 3:1 and being prepared from reactants consisting essentially of (1) (a) an aromatic dicarboxylic acid with 0 to 50% based on the total dicarboxylic acid of a cycloaliphatic dicarboxylic acid, (b) tris(2-hydroxyethyl)isocyanurate or an aliphatic polyhydric alcohol containing at least three hydroxyl groups, (c) a primary dihydric alcohol, (d) a monohydric alcohol, or (2) (a), (b) and (c), the molar ratio of (c) to (b) being from 75:25 to 40:60 when (d) is not present and the molar ratio of (c) plus (d) to (b) when (d) is present being 75:25 to 40:60.
Claim 2
Dependent Claim
157 words
A solution of a thermosetting polyester in water or water containing a water miscible polar solvent, said polar solvent being present in an amount up to 30%, said solution also containing an amine and an organic titanate which is hydrolytically stable as a curing agent for the polyester, said polyester having a molecular weight of 800 to 1300, an OH/COOH ratio of 1.8:1 to 3:1 and being prepared from reactants consisting essentially of (1) (a) an aromatic dicarboxylic acid with 0 to 50% based on the total dicarboxylic acid of a cycloaliphatic dicarboxylic acid, (b) tris(2-hydroxyethyl)isocyanurate or an aliphatic polyhydric alcohol containing at least three hydroxyl groups, (c) a primary dihydric alcohol, (d) a monohydric alcohol, or (2) (a), (b) and (c), the molar ratio of (c) to (b) being from 75:25 to 40:60 when (d) is not present and the molar ratio of (c) plus (d) to (b) when (d) is present being 75:25 to 40:60.
Claim 3
Dependent Claim
23 words
A solution according to claim 1 wherein the amine is present in an amount to impart a pH of 7-9 to the solution.
Claim 4
Dependent Claim
13 words
A solution according to claim 2 wherein the amine is a tertiary amine.
Claim 5
Dependent Claim
11 words
A solution according to claim 1 wherein (b) is a triol.
Claim 6
Dependent Claim
13 words
A solution according to claim 4 wherein (a) is 100% aromatic dicarboxylic acid.
Claim 7
Dependent Claim
11 words
A solution according to claim 5 wherein (a) is terephthalic acid.
Claim 8
Dependent Claim
12 words
A solution according to claim 6 wherein (a) is free terephthalic acid.
Claim 9
Dependent Claim
10 words
A solution according to claim 6 wherein (b) is tris(2-hydroxyethyl)isocyanurate.
Claim 10
Dependent Claim
11 words
A solution according to claim 8 wherein (c) is ethylene glycol.
Claim 11
Dependent Claim
22 words
A solution according to claim 8 wherein the polyester is (2) and there is present 5 to 30% of the polar solvent.
Claim 12
Dependent Claim
22 words
A solution according to claim 10 wherein (c) is ethylene glycol and there is present 5 to 25% of the polar solvent.
Claim 13
Dependent Claim
11 words
A solution according to claim 8 wherein the polyester is (1).
Claim 14
Dependent Claim
20 words
A solution according to claim 12 wherein (d) is a lower alkoxy ethanol, a lower alkoxy ethoxyethanol, phenoxyethanol or phenoxyethoxyethanol.
Claim 15
Dependent Claim
13 words
A solution according to claim 12 wherein (d) is methoxyethoxy ethanol or phenoxyethanol.
Claim 16
Dependent Claim
11 words
A polyester according to claim 14 wherein (c) is ethylene glycol.
Claim 17
Dependent Claim
31 words
A solution according to claim 6 which is (1), (b) is an aliphatic polyhydric alcohol and (c) is 1,3-di(hydroxyethyl)-5,5-dimethyl hydantoin and there is present 10 to 30% of the polar solvent.
Claim 18
Dependent Claim
10 words
A solution according to claim 16 where (b) is glycerine.
Claim 19
Dependent Claim
15 words
A solution according to claim 1 wherein polyester has a functionality between 2.0 and 2.2.
Claim 20
Dependent Claim
155 words
An electrical conductor coated with the resin obtained by curing a thermosetting polyester which is soluble in water in the presence of an amine or in a mixture of water with up to 30% of a water miscible polar solvent in the presence of an amine, said polyester having a molecular weight of 800 to 1300, an OH/COOH ratio of 1.8:1 to 3:1 and being prepared from reactants consisting essentially of (1) (a) an aromatic dicarboxylic acid with 0 to 50% based on the total dicarboxylic acid of a cycloaliphatic dicarboxylic acid, (b) tris(2-hydroxyethyl)isocyanurate or an aliphatic polyhydric alcohol containing at least three hydroxyl groups, (c) a primary dihydric alcohol, (d) a monohydric alcohol, or (2) (a), (b) and (c), the molar ratio of (c) to (b) being from 75:25 to 40:60 when (d) is not present and the molar ratio of (c) plus (d) to (b) when (d) is present being 75:25 to 40:60.
Claim 21
Dependent Claim
155 words
An electrical conductor coated with the resin obtained by curing a thermosetting polyester which is soluble in water in the presence of an amine or in a mixture of water with up to 30% of a water miscible polar solvent in the presence of an amine, said polyester having a molecular weight of 800 to 1300, an OH/COOH ratio of 1.8:1 to 3:1 and being prepared from reactants consisting essentially of (1) (a) an aromatic dicarboxylic acid with 0 to 50% based on the total dicarboxylic acid of a cycloaliphatic dicarboxylic acid, (b) tris(2-hydroxyethyl)isocyanurate or an aliphatic polyhydric alcohol containing at least three hydroxyl groups, (c) a primary dihydric alcohol, (d) a monohydric alcohol, or (2) (a), (b) and (c), the molar ratio of (c) to (b) being from 75:25 to 40:60 when (d) is not present and the molar ratio of (c) plus (d) to (b) when (d) is present being 75:25 to 40:60.
Claim 22
Dependent Claim
12 words
A coated electrical conductor according to claim 19 which is a wire.
Claim 23
Dependent Claim
27 words
A process for the production of an insulating coating on an electrical conductor comprising coating the conductor by passing it through the aqueous composition of claim 1.
Claim 24
Dependent Claim
11 words
A coated electrical conductor prepared by the process of claim 21.
Claim 25
Dependent Claim
12 words
A coated conductor according to claim 22 wherein (b) is a triol.
Claim 26
Dependent Claim
14 words
A coated conductor according to claim 23 wherein (a) is 100% aromatic dicarboxylic acid.
Claim 27
Dependent Claim
12 words
A coated conductor according to claim 24 wherein (a) is terephthalic acid.
Claim 28
Dependent Claim
13 words
A coated conductor according to claim 25 wherein (a) is free terephthalic acid.
Claim 29
Dependent Claim
11 words
A coated conductor according to claim 25 wherein (b) is tris(2-hydroxyethyl)isocyanurate.
Claim 30
Dependent Claim
12 words
A coated conductor according to claim 27 wherein (c) is ethylene glycol.
Claim 31
Dependent Claim
22 words
A coated conductor according to claim 28 wherein the polyester is (2) and the solution employed has 5 to 30% polar solvent.
Claim 32
Dependent Claim
12 words
A coated conductor according to claim 29 wherein (c) is ethylene glycol.
Claim 33
Dependent Claim
12 words
A coated conductor according to claim 27 wherein the polyester is (1).
Claim 34
Dependent Claim
21 words
A coated conductor according to claim 31 wherein (d) is a lower alkoxy ethanol, a lower alkoxy ethoxyethanol, phenoxyethanol or phenoxyethoxyethanol.
Claim 35
Dependent Claim
14 words
A coated conductor according to claim 31 wherein (d) is methoxyethoxy ethanol or phenoxyethanol.
Claim 36
Dependent Claim
12 words
A coated conductor according to claim 33 wherein (c) is ethylene glycol.
Claim 37
Dependent Claim
33 words
A coated conductor according to claim 25 which is (1), (b) is an aliphatic polyhydric alcohol and (c) is 1,3-di(hydroxyethyl)-5,5-dimethyl hydantoin and the solution employed has 10 to 30% of the polar solvent.
Claim 38
Dependent Claim
11 words
A coated conductor according to claim 35 where (b) is glycerine.
References Cited (Backward Citations)
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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) | 1982-01-08 | 1982-07-10 | 1983-01-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1986-01-08 | 1986-07-10 | 1987-01-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1990-01-08 | 1990-07-10 | 1991-01-09 | $7700.00 | Window Closed / Lapsed |