US4259470A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Propylene/1-butene or 1-pentene/higher 1-olefin copolymers useful as pressure-sensitive hot-melt adhesives
Assignee: Eastman Chemical Co
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Filing: 1979-08-30
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Granted: 1981-03-31
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Expires: 1999-08-30
Abstract
Abstract This invention relates to propylene/1-butene or 1-pentene/higher 1-olefin copolymers which provide useful pressure-sensitive hot-melt adhesives. The copolymers contain 5 to 39 mole % of one or more higher 1-olefins of the group 1-hexene, 1-heptene, 1-octene, 1-nonene and 1-decene and have a melt viscosity range of 5,000 to 75,000 cp. at 190 DEG C.
Inventors
- 👤 Jimmy R. Trotter
- 👤 Richard L. McConnell
- 👤 Frederick B. Joyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 05:31
CPC Classifications
C; C08; C08F; C08F210/00; C08F210/04; C08F210/06; C08F210/14; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
92 words
An adhesive composition capable of being used as a hot melt, pressure sensitive adhesive comprising a substantially amorphous propylene/1-butene or 1-pentene/higher 1-olefin copolymer, said copolymer containing about 10 to 55 mole % propylene, about 15-60 mole % of either 1-butene or 1-pentene and about 5 to 39 mole percent of at least one higher alpha-olefin of 6 to 10 carbon atoms, said copolymer having a melt viscosity of 5,000 to 75,000 centipoise at 190° C. and a density less than about 0.87 and a Tg of about -18° to about -35° C.
Claim 2
Dependent Claim
92 words
An adhesive composition capable of being used as a hot melt, pressure sensitive adhesive comprising a substantially amorphous propylene/1-butene or 1-pentene/higher 1-olefin copolymer, said copolymer containing about 10 to 55 mole % propylene, about 15-60 mole % of either 1-butene or 1-pentene and about 5 to 39 mole percent of at least one higher alpha-olefin of 6 to 10 carbon atoms, said copolymer having a melt viscosity of 5,000 to 75,000 centipoise at 190° C. and a density less than about 0.87 and a Tg of about -18° to about -35° C.
Claim 3
Dependent Claim
38 words
An adhesion composition according to claim 1 wherein said hot melt, pressure sensitive adhesive is a propylene/1-butene/higher 1-olefin copolymer containing about 30 mole % propylene, about 39 mole % of 1-butene and about 31 mole percent of 1-hexene.
Claim 4
Dependent Claim
38 words
An adhesive composition according to claim 1 wherein said hot melt, pressure sensitive adhesive is a propylene/1-butene/higher 1-olefin copolymer, containing about 35 mole % propylene, about 37 mole % of 1-butene and about 28 mole percent of 1-hexene.
Claim 5
Dependent Claim
38 words
An adhesive composition according to claim 1 wherein said hot melt, pressure sensitive adhesive is a propylene/1-butene/higher 1-olefin copolymer containing about 12 mole % propylene, about 57 mole % of 1-butene and about 31 mole percent of 1-hexene.
Claim 6
Dependent Claim
38 words
An adhesive composition according to claim 1 wherein said hot melt, pressure sensitive adhesive is a propylene/1-butene/higher 1-olefin copolymer containing about 40 mole % propylene, about 36 mole % of 1-butene and about 24 mole percent of 1-hexene.
Claim 7
Dependent Claim
38 words
An adhesive composition according to claim 1 wherein said hot melt, pressure sensitive adhesive is a propylene/1-butene/higher 1-olefin copolymer containing about 52 mole % propylene, about 31 mole % of 1-butene and about 17 mole percent of 1-hexene.
Claim 8
Dependent Claim
38 words
An adhesive composition according to claim 1 wherein said hot melt, pressure sensitive adhesive is a propylene/1-butene/higher 1-olefin copolymer containing about 43 mole % propylene, about 43 mole % of 1-butene and about 14 mole percent of 1-hexene.
Claim 9
Dependent Claim
38 words
An adhesive composition according to claim 1 wherein said hot melt, pressure sensitive adhesive is a propylene/1-butene/higher 1-olefin copolymer containing about 52 mole % propylene, about 41 mole % of 1-butene and about 7 mole percent of 1-hexene.
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) | 1984-03-30 | 1984-09-29 | 1985-03-31 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-03-30 | 1988-09-29 | 1989-03-31 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-03-30 | 1992-09-29 | 1993-03-31 | $7700.00 | Window Closed / Lapsed |