US3954697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Poly(higher-1-olefin-co-propylene) copolymers as hot-melt, pressure-sensitive adhesives
Assignee: Eastman Kodak Co
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Filing: 1975-03-31
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Granted: 1976-05-04
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Expires: 1995-03-31
Abstract
Abstract This invention relates to single component, hot-melt, pressure-sensitive adhesives based on propylene/higher 1-olefin copolymers containing 40-60 mole % of the higher 1-olefin. Suitable comonomers include 1-hexene through 1-decene. These new adhesives can be readily applied to substrates such as tape by means of conventional hot-melt coating equipment and thereby eliminate the solvent pollution problems associated with the application of current solvent-based pressure-sensitive adhesives. Our hot-melt coated tapes generally have pressure-sensitive adhesive properties at least equivalent to those of solvent coated pressure-sensitive tapes.
Inventors
- 👤 Richard L. McConnell
- 👤 Doyle A. Weemes
- 👤 Frederick B. Joyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:54
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/18; C08; C08F; C08F210/00; C08F210/04; C08F210/06; C08F210/14; C09J123/16; C09J123/20
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
75 words
A hot melt, pressure sensitive adhesive comprising an amorphous propylene/higher 1-olefin copolymer containing 40 to 60 mole percent higher 1-olefin having a melt viscosity range at 190°C. of 10,000 cp. to 75,000 cp., a density of 0.85 to 0.86, a glass transition temperature of -30° to -45°C., and having no melting point measurable by Differential Scanning Calorimetry, wherein said higher 1-olefin is a member of the group consisting of 1-hexene, 1-heptene, 1-octene, 1-nonene and 1-decene.
Claim 2
Dependent Claim
75 words
A hot melt, pressure sensitive adhesive comprising an amorphous propylene/higher 1-olefin copolymer containing 40 to 60 mole percent higher 1-olefin having a melt viscosity range at 190°C. of 10,000 cp. to 75,000 cp., a density of 0.85 to 0.86, a glass transition temperature of -30° to -45°C., and having no melting point measurable by Differential Scanning Calorimetry, wherein said higher 1-olefin is a member of the group consisting of 1-hexene, 1-heptene, 1-octene, 1-nonene and 1-decene.
Claim 3
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 1 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-hexene copolymer.
Claim 4
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 1 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-heptene copolymer.
Claim 5
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 1 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-octene copolymer.
Claim 6
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 1 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-nonene copolymer.
Claim 7
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 1 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-decene copolymer.
Claim 8
Dependent Claim
75 words
A hot melt, pressure sensitive adhesive comprising an amorphous propylene/higher 1-olefin copolymer containing 40 to 60 mole percent higher 1-olefin having a melt viscosity range at 190°C. of 13,000 cp. to 50,000 cp., a density of 0.85 to 0.86, a glass transition temperature of -30° to -45°C., and having no melting point measurable by Differential Scanning Calorimetry, wherein said higher 1-olefin is a member of the group consisting of 1-hexene, 1-heptene, 1-octene, 1-nonene and 1-decene.
Claim 9
Dependent Claim
75 words
A hot melt, pressure sensitive adhesive comprising an amorphous propylene/higher 1-olefin copolymer containing 40 to 60 mole percent higher 1-olefin having a melt viscosity range at 190°C. of 13,000 cp. to 50,000 cp., a density of 0.85 to 0.86, a glass transition temperature of -30° to -45°C., and having no melting point measurable by Differential Scanning Calorimetry, wherein said higher 1-olefin is a member of the group consisting of 1-hexene, 1-heptene, 1-octene, 1-nonene and 1-decene.
Claim 10
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 7 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-hexene copolymer.
Claim 11
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 7 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-heptene copolymer.
Claim 12
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 7 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-octene copolymer.
Claim 13
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 7 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-nonene copolymer.
Claim 14
Dependent Claim
20 words
A hot melt, pressure sensitive adhesive according to claim 7 wherein said amorphous propylene/higher 1-olefin copolymer is a propylene/1-decene copolymer.
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) | 1979-05-04 | 1979-11-03 | 1980-05-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-05-04 | 1983-11-03 | 1984-05-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-05-04 | 1987-11-03 | 1988-05-04 | $7700.00 | Window Closed / Lapsed |