Patent US3944516A successfully refreshed from Google Patents.
US3944516A
Expired / Lapsed
US
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Adhesive composition
Assignee: Eastman Kodak Co
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Filing: 1975-04-07
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Granted: 1976-03-16
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Expires: 1995-04-07
Abstract
Abstract Disclosed is a hot-melt adhesive composition comprised of an admixture of a polyetherester, polystyrene and optionally a filler. The adhesive composition exhibits a desirable overall balance of properties, including good bond strength, particularly after aging. In a preferred embodiment, the adhesive composition can be used to bond poly(vinyl chloride) to wood or particleboard.
Inventors
- 👤 Frederick D. Petke
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 11:21
CPC Classifications
C; C09; C09J; C09J167/00; C09J167/02; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; C08K3/24; C08K3/26; C08K3/30; C08K3/32; C08K3/34; C08L; C08L25/00; C08L25/02; C08L25/04; C08L25/06; C08L67/00; C08L67/02; C08L2666/00; C08L2666/02; C08L2666/04; C08L2666/54
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
112 words
A composition comprising, based on the weight of the composition, an admixture of A. from 95-60 weight percent of a polyetherester having an inherent viscosity in the range of 0.5 to 1.4, the polyetherester being comprised of 1. a dicarboxylic acid component comprised of a. from 90-60 mole percent terephthalic acid, b. from 10-40 mole percent cis/trans hexahydroterephthalic acid, 2. a diol component comprised of, based on the weight of the diol component a. 80-60 weight percent 1,4-butanediol, b. 20-40 weight percent poly(tetramethylene glycol) having an average molecular weight in the range of 600-2000, and B. from 5-40 weight percent polystyrene having an inherent viscosity in the range of 0.2 to 0.7.
Claim 2
Dependent Claim
112 words
A composition comprising, based on the weight of the composition, an admixture of A. from 95-60 weight percent of a polyetherester having an inherent viscosity in the range of 0.5 to 1.4, the polyetherester being comprised of 1. a dicarboxylic acid component comprised of a. from 90-60 mole percent terephthalic acid, b. from 10-40 mole percent cis/trans hexahydroterephthalic acid, 2. a diol component comprised of, based on the weight of the diol component a. 80-60 weight percent 1,4-butanediol, b. 20-40 weight percent poly(tetramethylene glycol) having an average molecular weight in the range of 600-2000, and B. from 5-40 weight percent polystyrene having an inherent viscosity in the range of 0.2 to 0.7.
Claim 3
Dependent Claim
122 words
A composition comprising, based on the weight of the composition, an admixture of A. from 85-30 weight percent of a polyetherester having an inherent viscosity in the range of 0.50 to 0.80, the polyetherester being comprised of 1. a dicarboxylic acid component comprised of a. from 75-65 mole percent terephthalic acid, b. from 25-35 mole percent cis/trans hexahydroterephthalic acid, 2. a diol component comprised of, based on the weight of the diol component, a. 80-70 weight percent 1,4-butanediol, b. 20-30 weight percent poly(tetramethylene glycol) having an average molecular weight in the range of 600-2000, B. from 10-30 weight percent polystyrene having an inherent viscosity in the range of 0.2 to 0.5, and C. from 5-40 weight percent of an inert, inorganic filler.
Claim 4
Dependent Claim
122 words
A composition comprising, based on the weight of the composition, an admixture of A. from 85-30 weight percent of a polyetherester having an inherent viscosity in the range of 0.50 to 0.80, the polyetherester being comprised of 1. a dicarboxylic acid component comprised of a. from 75-65 mole percent terephthalic acid, b. from 25-35 mole percent cis/trans hexahydroterephthalic acid, 2. a diol component comprised of, based on the weight of the diol component, a. 80-70 weight percent 1,4-butanediol, b. 20-30 weight percent poly(tetramethylene glycol) having an average molecular weight in the range of 600-2000, B. from 10-30 weight percent polystyrene having an inherent viscosity in the range of 0.2 to 0.5, and C. from 5-40 weight percent of an inert, inorganic filler.
Claim 5
Dependent Claim
120 words
A composition comprising, based on the weight of the composition, an admixture of A. about 49 weight percent of a polyetherester having an inherent viscosity in the range of 0.60 to 0.75, the polyetherester being comprised of 1. a dicarboxylic acid component comprised of a. about 70 mole percent terephthalic acid, b. about 30 mole percent cis/trans hexahydroterephthalic acid, 2. a diol component comprised of, based on the weight of the diol component, a. about 75 weight percent 1,4-butanediol, b. about 25 weight percent poly(tetramethylene glycol) having an average molecular weight of about 1000, B. about 21 weight percent polystyrene having an inherent viscosity in the range of 0.2 to 0.4, and C. about 30 weight percent CaCO 3 .
Claim 6
Dependent Claim
120 words
A composition comprising, based on the weight of the composition, an admixture of A. about 49 weight percent of a polyetherester having an inherent viscosity in the range of 0.60 to 0.75, the polyetherester being comprised of 1. a dicarboxylic acid component comprised of a. about 70 mole percent terephthalic acid, b. about 30 mole percent cis/trans hexahydroterephthalic acid, 2. a diol component comprised of, based on the weight of the diol component, a. about 75 weight percent 1,4-butanediol, b. about 25 weight percent poly(tetramethylene glycol) having an average molecular weight of about 1000, B. about 21 weight percent polystyrene having an inherent viscosity in the range of 0.2 to 0.4, and C. about 30 weight percent CaCO 3 .
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) | 1979-03-16 | 1979-09-15 | 1980-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-03-16 | 1983-09-15 | 1984-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-03-16 | 1987-09-15 | 1988-03-16 | $7700.00 | Window Closed / Lapsed |