US4330670A
Expired / Lapsed
US
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Copolyester adhesives
Assignee: Eastman Kodak Co
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Filing: 1981-05-26
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Granted: 1982-05-18
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Expires: 2001-05-26
Abstract
Abstract Copolyester adhesives are disclosed which are derived from 100 mole % of a dibasic acid component and 100 mole % of a glycol component, the dibasic acid component comprising at least 40 mole % of trans-1,4-cyclohexanedicarboxylic acid and the glycol component comprising at least 50 mole % 1,4-butanediol. The copolyester is characterized by having a melting point of about 40°-130° C., a glass transition temperature of about -20° C. to about 40° C., a heat of fusion of not less than 1.0 calorie per gram, and a crystalline half time of less than 10 minutes at maximum crystallization temperature. These copolyesters are useful as adhesives, and are especially useful as fusible interlining adhesives.
Inventors
- 👤 Bobby J. Sublett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 02:40
CPC Classifications
C; C09; C09J; C09J167/00; C09J167/02; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/199
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
102 words
A crystalline copolyester derived from 100 mole % of a dibasic acid component and 100 mole % of a glycol component, said dibasic acid component comprising at least 40 mole % of 1,4-cyclohexanedicarboxylic acid at least 80% of which is the trans-isomer, and said glycol component comprising at least 50 mole % 1,4-butanediol, said copolyester characterized by having a melting point of about 40°-130° C., a glass transition temperature of about -20° C. to about 40° C., a heat of fusion of greater than 1.0 calorie per gram, and a crystalline half time of less than 10 minutes at maximum crystallization temperature.
Claim 2
Dependent Claim
102 words
A crystalline copolyester derived from 100 mole % of a dibasic acid component and 100 mole % of a glycol component, said dibasic acid component comprising at least 40 mole % of 1,4-cyclohexanedicarboxylic acid at least 80% of which is the trans-isomer, and said glycol component comprising at least 50 mole % 1,4-butanediol, said copolyester characterized by having a melting point of about 40°-130° C., a glass transition temperature of about -20° C. to about 40° C., a heat of fusion of greater than 1.0 calorie per gram, and a crystalline half time of less than 10 minutes at maximum crystallization temperature.
Claim 3
Dependent Claim
33 words
A copolyester according to claim 1 wherein said dibasic acid component comprises up to about 60 mole % of a second acid selected from the group consisting of isophthalic, succinic, adipic and glutaric.
Claim 4
Dependent Claim
25 words
A copolyester according to claim 1 wherein said glycol component comprises up to about 50 mole % of ethylene glycol, diethylene glycol or mixtures thereof.
Claim 5
Dependent Claim
13 words
A copolyester according to claim 3 wherein said glycol component comprises ethylene glycol.
Claim 6
Dependent Claim
13 words
A copolyester according to claim 3 wherein said glycol component comprises diethylene glycol.
Claim 7
Dependent Claim
24 words
A copolyester according to claim 1 wherein said acid component comprises 1,4-cyclohexanedicarboxylic and glutaric acid and said glycol component comprises 1,4-butanediol and diethylene glycol.
Claim 8
Dependent Claim
24 words
A copolyester according to claim 1 wherein said acid component comprises 1,4-cyclohexanedicarboxylic and glutaric acid and said glycol component comprises 1,4-butanediol and ethylene glycol.
Claim 9
Dependent Claim
17 words
A copolyester according to claim 1 wherein the inherent viscosity is between about 0.4 and about 1.2.
Claim 10
Dependent Claim
12 words
A copolyester according to claim 1 in the form of a powder.
Claim 11
Dependent Claim
143 words
A crystalline copolyester adhesive composition derived from 100 mole % of a dibasic acid component and 100 mole % of a glycol component, said dibasic acid component comprising at least 40 mole % of 1,4-cyclohexanedicarboxylic acid and up to 60 mole % of at least one other acid selected from the group consisting of isophthalic, terephthalic succinic, adipic and glutaric, and said glycol component comprising at least 50 mole % 1,4-butanediol and up to 50 mole % of at least one other glycol selected from the group consisting of ethylene glycol and diethylene glycol, said copolyester characterized by having a melting point of about 40°-130° C., a glass transition temperature of about -20° C. to about 40° C., a heat of fusion of greater than 1.0 calorie per gram, and a crystalline half time of less than 10 minutes at maximum crystallization temperature.
Claim 12
Dependent Claim
143 words
A crystalline copolyester adhesive composition derived from 100 mole % of a dibasic acid component and 100 mole % of a glycol component, said dibasic acid component comprising at least 40 mole % of 1,4-cyclohexanedicarboxylic acid and up to 60 mole % of at least one other acid selected from the group consisting of isophthalic, terephthalic succinic, adipic and glutaric, and said glycol component comprising at least 50 mole % 1,4-butanediol and up to 50 mole % of at least one other glycol selected from the group consisting of ethylene glycol and diethylene glycol, said copolyester characterized by having a melting point of about 40°-130° C., a glass transition temperature of about -20° C. to about 40° C., a heat of fusion of greater than 1.0 calorie per gram, and a crystalline half time of less than 10 minutes at maximum crystallization temperature.
Claim 13
Dependent Claim
11 words
A fabric having the copolyester according to claim 1 adhered thereto.
Claim 14
Dependent Claim
11 words
A fabric having the copolyester according to claim 10 adhered thereto.
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) | 1985-05-17 | 1985-11-16 | 1986-05-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1989-05-17 | 1989-11-16 | 1990-05-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1993-05-17 | 1993-11-16 | 1994-05-18 | $7700.00 | Window Closed / Lapsed |