US4062907A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyester hot melt adhesive
Assignee: Eastman Chemical Co
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Filing: 1976-11-15
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Granted: 1977-12-13
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Expires: 1996-11-15
Abstract
Abstract Polyesters useful as hot melt adhesives are prepared from selected dicarboxylic acids and selected diols, which include a critical range of polyoxyethylene glycols. In a first embodiment of the invention, the polyester is prepared from terephthalic acid, isophthalic acid, adipic acid, 1,4-butanediol, ethylene glycol, and 20 to 45 weight percent of the selected polyoxyethylene glycols. In a second embodiment of the invention, the polyester is prepared from terephthalic acid, acipic acid, 1,6-hexanediol, ethylene glycol, and 2 to 40 weight percent of the selected polyoxyethylene glycols.
Inventors
- 👤 Bobby J. Sublett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:57
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/68; C08G63/685; C08G63/6854; C09; C09J; C09J167/00
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
136 words
A polyester having an inherent viscosity of at least 0.5 consisting essentially of A. a dicarboxylic acid component which is 1. 25 to 65 mole percent terephthalic acid, 2. 10 to 25 mole percent isophthalic acid, 3. 25 to 50 mole percent adipic acid, B. a diol component which is 1. 60 to 25 mole percent 1,4-butanediol, 2. 40 to 75 mole percent ethylene glycol, and 3. 20 to 45 weight percent, based on the weight of the polyester, of a polyoxyethylene glycol selected from the group consisting of ##STR5## where x is in the range of 1 to 127 and y is in the range of 1 to 110, ##STR6## where x is in the range of 16 to 612, and (c) H(OCH.sub.2 CH.sub.2).sub.x --OH where x is in the range of 4 to 180.
Claim 2
Dependent Claim
136 words
A polyester having an inherent viscosity of at least 0.5 consisting essentially of A. a dicarboxylic acid component which is 1. 25 to 65 mole percent terephthalic acid, 2. 10 to 25 mole percent isophthalic acid, 3. 25 to 50 mole percent adipic acid, B. a diol component which is 1. 60 to 25 mole percent 1,4-butanediol, 2. 40 to 75 mole percent ethylene glycol, and 3. 20 to 45 weight percent, based on the weight of the polyester, of a polyoxyethylene glycol selected from the group consisting of ##STR5## where x is in the range of 1 to 127 and y is in the range of 1 to 110, ##STR6## where x is in the range of 16 to 612, and (c) H(OCH.sub.2 CH.sub.2).sub.x --OH where x is in the range of 4 to 180.
Claim 3
Dependent Claim
57 words
A polyester having an inherent viscosity of at least 0.5 consisting essentially of A. a dicarboxylic acid component which is 1. 40 to 60 mole percent terephthalic acid, 2. 15 to 25 mole percent isophthalic acid, 3. 25 to 40 mole percent adipic acid, B. a diol component which is 1. 60 to 40 mole percent 1,4-butanediol,
Claim 4
Dependent Claim
57 words
A polyester having an inherent viscosity of at least 0.5 consisting essentially of A. a dicarboxylic acid component which is 1. 40 to 60 mole percent terephthalic acid, 2. 15 to 25 mole percent isophthalic acid, 3. 25 to 40 mole percent adipic acid, B. a diol component which is 1. 60 to 40 mole percent 1,4-butanediol,
Claim 5
Dependent Claim
78 words
40 to 60 mole percent ethylene glycol, and 3. 30 to 40 weight percent, based on the weight of the polyester, of a polyoxyethylene glycol selected from the group consisting of ##STR7## where x is in the range of 1 to 127 and y is in the range of 1 to 110, ##STR8## where x is in the range of 16 to 612, and (c) H(OCH.sub.2 CH.sub.2).sub.x --OH where x is in the range of 4 to 180.
Claim 6
Dependent Claim
78 words
40 to 60 mole percent ethylene glycol, and 3. 30 to 40 weight percent, based on the weight of the polyester, of a polyoxyethylene glycol selected from the group consisting of ##STR7## where x is in the range of 1 to 127 and y is in the range of 1 to 110, ##STR8## where x is in the range of 16 to 612, and (c) H(OCH.sub.2 CH.sub.2).sub.x --OH where x is in the range of 4 to 180.
Claim 7
Dependent Claim
128 words
A polyester having an inherent viscosity of at least 0.5 consisting essentially of A. a dicarboxylic acid component which is 1. 100 to 60 mole percent terephthalic acid, 2. 0 to 40 mole percent adipic acid, B. a diol component which is 1. 70 to 30 mole percent 1,6-hexanediol, 2. 30 to 70 mole percent ethylene glycol, and 3. 2 to 40 weight percent, based on the weight of the polyester, of a polyoxyethylene glycol selected from the group consisting of ##STR9## where x is in the range of 1 to 127 and y is in the range of 1 to 110, ##STR10## where x is in the range of 16 to 612, and (c) H(OCH.sub.2 CH.sub.2).sub.x --OH where x is in the range of 4 to 180.
Claim 8
Dependent Claim
128 words
A polyester having an inherent viscosity of at least 0.5 consisting essentially of A. a dicarboxylic acid component which is 1. 100 to 60 mole percent terephthalic acid, 2. 0 to 40 mole percent adipic acid, B. a diol component which is 1. 70 to 30 mole percent 1,6-hexanediol, 2. 30 to 70 mole percent ethylene glycol, and 3. 2 to 40 weight percent, based on the weight of the polyester, of a polyoxyethylene glycol selected from the group consisting of ##STR9## where x is in the range of 1 to 127 and y is in the range of 1 to 110, ##STR10## where x is in the range of 16 to 612, and (c) H(OCH.sub.2 CH.sub.2).sub.x --OH where x is in the range of 4 to 180.
Claim 9
Dependent Claim
128 words
A polyester having an inherent viscosity of at least 0.5 consisting essentially of A. a dicarboxylic acid component which is 1. 80 to 60 mole percent terephthalic acid, 2. 20 to 40 mole percent adipic acid, B. a diol component which is 1. 60 to 40 mole percent 1,6-hexanediol, 2. 40 to 60 mole percent ethylene glycol, and 3. 5 to 30 weight percent, based on the weight of the polyester, of a polyoxyethylene glycol selected from the group consisting of ##STR11## where x is in the range of 1 to 127 and y is in the range of 1 to 110, ##STR12## where x is in the range of 16 to 612, and (c) H(OCH.sub.2 CH.sub.2).sub.x --OH where x is in the range of 4 to 180.
Claim 10
Dependent Claim
128 words
A polyester having an inherent viscosity of at least 0.5 consisting essentially of A. a dicarboxylic acid component which is 1. 80 to 60 mole percent terephthalic acid, 2. 20 to 40 mole percent adipic acid, B. a diol component which is 1. 60 to 40 mole percent 1,6-hexanediol, 2. 40 to 60 mole percent ethylene glycol, and 3. 5 to 30 weight percent, based on the weight of the polyester, of a polyoxyethylene glycol selected from the group consisting of ##STR11## where x is in the range of 1 to 127 and y is in the range of 1 to 110, ##STR12## where x is in the range of 16 to 612, and (c) H(OCH.sub.2 CH.sub.2).sub.x --OH where x is in the range of 4 to 180.
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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) | 1980-12-12 | 1981-06-13 | 1981-12-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-12 | 1985-06-13 | 1985-12-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-12 | 1989-06-13 | 1989-12-13 | $7700.00 | Window Closed / Lapsed |