US4094721A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Partially crystalline copolyesters useful as adhesives
Assignee: Dynamit Nobel AG
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Filing: 1975-07-15
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Granted: 1978-06-13
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Expires: 1995-07-15
Abstract
Abstract A linear saturated crystalline polyester of an acid moiety and a moiety of a dihydric alcohol, at least 40% of the acid moiety being a terephthalic acid moiety, said polyester containing moieties of 1,4-butanediol and 1,6-hexanediol, the ratio of the 1,4-butanediol moieties to 1,6-hexanediol moieties being 10:90 to 90:10; the use of such polyesters as a fusion coating mass, particularly in securing textile substances to a substrate.
Inventors
- 👤 Karl Gunter Sturm
- 👤 Klaus Bruning
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 19:44
CPC Classifications
C; C08; C08G; C08G63/00; C08G63/02; C08G63/12; C08G63/16; C08G63/18; C08G63/181; C09; C09J; C09J167/00; C09J167/02; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31786
Claims Analysis
Total Claims: 25
Claim 1
Independent Claim
131 words
A linear saturated crystalline polyester of an acid moiety and a moiety of a dihydric alcohol, at least 40 mol percent of the acid moiety being a terephthalic acid moiety, said polyester containing as moieties of the dihydric alcohol moieties of 1,4-butanediol and 1,6-hexanediol, the ratio of the 1,4-butanediol moieties to 1,6-hexanediol moieties being 10:90:-90:10, said polyester being further characterized by: A. a glass transition temperature of -10° C to +30° C; B. a melting point of 40°-130° C; C. a difference between the glass transition temperature and the melting being equal to or less than 100° C; D. a maximum logarithmic damping decrement from 0.6 to >1.3; and E. a reduced viscosity, measured on a 1 wt.-% solution in a 60-40 mixture of phenol and 1,1,2,2-tetrachloroethane, of 0.5 to 1.5.
Claim 2
Dependent Claim
131 words
A linear saturated crystalline polyester of an acid moiety and a moiety of a dihydric alcohol, at least 40 mol percent of the acid moiety being a terephthalic acid moiety, said polyester containing as moieties of the dihydric alcohol moieties of 1,4-butanediol and 1,6-hexanediol, the ratio of the 1,4-butanediol moieties to 1,6-hexanediol moieties being 10:90:-90:10, said polyester being further characterized by: A. a glass transition temperature of -10° C to +30° C; B. a melting point of 40°-130° C; C. a difference between the glass transition temperature and the melting being equal to or less than 100° C; D. a maximum logarithmic damping decrement from 0.6 to >1.3; and E. a reduced viscosity, measured on a 1 wt.-% solution in a 60-40 mixture of phenol and 1,1,2,2-tetrachloroethane, of 0.5 to 1.5.
Claim 3
Dependent Claim
24 words
A polyester according to claim 1 wherein up to 50 mol percent of the acid moieties are acid moieties other than terephthalic acid moieties.
Claim 4
Dependent Claim
14 words
A polyester according to claim 2 wherein the polyester contains moieties of isophthalic acid.
Claim 5
Dependent Claim
14 words
A polyester according to claim 2 wherein the polyester contains moieties of azelaic acid.
Claim 6
Dependent Claim
14 words
A polyester according to claim 2 wherein the polyester contains moieties of adipic acid.
Claim 7
Dependent Claim
14 words
A polyester according to claim 2 wherein the polyester contains moieties of sebacic acid.
Claim 8
Dependent Claim
18 words
A polyester according to claim 1 wherein the mol ratio of 1,4-butanediol to 1,6-hexanediol is 80:20 to 40:60.
Claim 9
Dependent Claim
16 words
A polyester according to claim 7 wherein the polyester has a crystallinity of at least 1%.
Claim 10
Dependent Claim
46 words
A polyester according to claim 7 wherein the polyester additionally contains moieties of a third dihydric alcohol, in an amount of up to 20 mol% based upon the total diol compound said third dihydric alcohol being a saturated aliphated diol having 2 to 12 carbon atoms.
Claim 11
Dependent Claim
25 words
A polyester according to claim 9 wherein said third dihydric alcohol is selected from a group consisting of ethylene glycol, propanediol-1,3, pentanediol-1,5 and neopentyl glycol.
Claim 12
Dependent Claim
17 words
A polyester according to claim 7 wherein said polyester is free of moieties of another dihydric alcohol.
Claim 13
Dependent Claim
35 words
A polyester according to claim 7 wherein the polyester additionally contains moieties of a second acid, said acid being a saturated aliphatic dicarboxylic acid having 4 to 34 carbon atoms between the carboxylic acid groups.
Claim 14
Dependent Claim
18 words
A polyester according to claim 1 wherein the polyester has a melt viscosity between 100 and 20000 poises.
Claim 15
Dependent Claim
13 words
A polyester according to claim 13 wherein the melt viscosity is 300-10000 poises.
Claim 16
Dependent Claim
13 words
A polyester according to claim 13 having a melting point below 130° C.
Claim 17
Dependent Claim
14 words
A polyester according to claim 1 having a reduced viscosity of 0.7 to 1.2.
Claim 18
Dependent Claim
52 words
In a process for securing one substrate to another by disposing between said substrates a heat-fusible material and maintaining the substrates in sufficient juxtaposition until said material has fused and bond one of said substrates to the other, the improvement which comprises employing a heat-fusible material of the polyester of claim 1.
Claim 19
Dependent Claim
52 words
In a process for securing one substance to another by disposing between said substances a heat-fusible material and maintaining the substances in sufficient juxtaposition until said material has fused and bond one of said substances to the other, the improvement which comprises employing a heat-fusible material of the polyester of claim 2.
Claim 20
Dependent Claim
52 words
In a process for securing one substance to another by disposing between said substances a heat-fusible material and maintaining the substances in sufficient juxtaposition until said material has fused and bond one of said substances to the other, the improvement which comprises employing a heat-fusible material of the polyester of claim 7.
Claim 21
Dependent Claim
22 words
A process according to claim 12 wherein the polyester is disposed between said substances in the form of a molten heated mass.
Claim 22
Dependent Claim
33 words
A process according to claim 12 wherein the polyester is disposed between said substances in the form of a solid and thereafter is subjected to sufficient temperature and pressure to join said substances.
Claim 23
Dependent Claim
17 words
A process according to claim 12 wherein at least one of said substances is a textile substance.
Claim 24
Dependent Claim
19 words
A process according to claim 12 wherein at least one of said substances is a natural or artificial leather.
Claim 25
Dependent Claim
42 words
A process according to claim 12 wherein said polyester is disposed between a shoe lining material and a shoe upper material and in such position is subjected to sufficient temperature and pressure to join said lining material to said shoe upper material.
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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) | 1981-06-12 | 1981-12-12 | 1982-06-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-06-12 | 1985-12-12 | 1986-06-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-06-12 | 1989-12-12 | 1990-06-13 | $7700.00 | Window Closed / Lapsed |