Patent US4288358A successfully refreshed from Google Patents.
US4288358A
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US
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Blends of propylene/1-butene or 1-pentene/higher α-olefin copolymers, compatible tackifying resins and plasticizing oils useful as hot-melt, pressure-sensitive adhesives
Assignee: Eastman Chemical Co
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Filing: 1979-08-30
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Granted: 1981-09-08
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Expires: 1999-08-30
Abstract
Abstract This invention relates to blends of plasticizing oils and compatible tackifiers with olefin copolymers containing propylene, either 1-butene or 1-pentene and 3 to 14 mole percent of at least one C 6 to C 10 linear α-olefin which are useful as hot-melt, pressure-sensitive adhesives. The unmodified copolymer base resins have melt viscosities in the range of 10,000 cp up to about 1,000,000 cp at 190° C. The addition of the plasticizing oils and compatible tackifiers to the copolymer base resin causes a dramatic and unexpected increase in the shear adhesion failure time in addition to improved coatability as well as substantial increases in probe tack and peel adhesion values of the copolymers.
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 11:10
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/16; C08; C08L; C08L2666/00; C08L2666/02
Claims Analysis
Total Claims: 18
Claim 1
Independent Claim
95 words
An adhesive composition capable of being used as a hot-melt, pressure-sensitive adhesive comprising a blend of (1) about 98 to 25 weight percent of an olefin copolymer containing 10-65 mole % propylene, 15-75 mole % of either 1-butene or 1-pentene and 3 to 14 mole percent of at least one higher linear alpha-olefin of 6 to 10 carbon atoms, said copolymer having a melt viscosity of 10,000 to 1,000,000 centipoise at 190° C., (2) 1 to 60 weight percent of at least one compatible tackifying resin, and (3) 1 to 25 weight percent plasticizing oil.
Claim 2
Dependent Claim
95 words
An adhesive composition capable of being used as a hot-melt, pressure-sensitive adhesive comprising a blend of (1) about 98 to 25 weight percent of an olefin copolymer containing 10-65 mole % propylene, 15-75 mole % of either 1-butene or 1-pentene and 3 to 14 mole percent of at least one higher linear alpha-olefin of 6 to 10 carbon atoms, said copolymer having a melt viscosity of 10,000 to 1,000,000 centipoise at 190° C., (2) 1 to 60 weight percent of at least one compatible tackifying resin, and (3) 1 to 25 weight percent plasticizing oil.
Claim 3
Dependent Claim
19 words
An adhesive composition according to claim 1 wherein said compatible tackifying resin is at least one hydrocarbon tackifying resin.
Claim 4
Dependent Claim
106 words
An adhesive composition capable of being used as a hot-melt, pressure-sensitive adhesive comprising a blend of (1) 90 to 30 weight percent of an olefin copolymer containing 10-65 mole % propylene, 15-75 mole % of either 1-butene or 1-pentene and 3 to 14 mole percent of at least one higher linear alpha-olefin of 6 to 10 carbon atoms, said copolymer having a melt viscosity of 16,000 to 1,000,000 centipoise at 190° C., and (2) 10 to 50 weight percent of at least one compatible tackifying resin selected from the group consisting of hydrocarbon resins, and polyterpene resins, and (3) 5 to 15 weight percent plasticizing oil.
Claim 5
Dependent Claim
106 words
An adhesive composition capable of being used as a hot-melt, pressure-sensitive adhesive comprising a blend of (1) 90 to 30 weight percent of an olefin copolymer containing 10-65 mole % propylene, 15-75 mole % of either 1-butene or 1-pentene and 3 to 14 mole percent of at least one higher linear alpha-olefin of 6 to 10 carbon atoms, said copolymer having a melt viscosity of 16,000 to 1,000,000 centipoise at 190° C., and (2) 10 to 50 weight percent of at least one compatible tackifying resin selected from the group consisting of hydrocarbon resins, and polyterpene resins, and (3) 5 to 15 weight percent plasticizing oil.
Claim 6
Dependent Claim
18 words
An adhesive composition according to claim 3 wherein said compatible tackifying resin is at least one polyterpene resin.
Claim 7
Dependent Claim
18 words
An adhesive composition according to claim 3 wherein said compatible tackifying resin is at least one hydrocarbon resin.
Claim 8
Dependent Claim
16 words
An adhesive composition according to claim 5 wherein said hydrocarbon tackifying resin is DAC-B hydrocarbon resin.
Claim 9
Dependent Claim
17 words
An adhesive composition according to claim 5 wherein said hydrocarbon tackifying resin is Wingtack 95 hydrocarbon resin.
Claim 10
Dependent Claim
17 words
An adhesive composition according to claim 5 wherein said hydrocarbon tackifying resin is Wingtack 115 hydrocarbon resin.
Claim 11
Dependent Claim
18 words
An adhesive composition according to claim 4 wherein said polyterpene tackifying resin is Zonarez 7100 terpene hydrocarbon resin.
Claim 12
Dependent Claim
68 words
An adhesive composition according to claim 3 wherein said plasticizing oil is a member of the group consisting of paraffinic/naphthenic oils, low molecular weight oils derived from a C 5 hydrocarbon fraction, low molecular weight polyisobutylenes, low molecular weight liquid polymerized DAC-B oils, liquid polyterpenes and esters having a boiling point of greater than about 275° C. at 760 mm pressure derived from either aromatic or aliphatic acids.
Claim 13
Dependent Claim
68 words
An adhesive composition according to claim 4 wherein said plasticizing oil is a member of the group consisting of paraffinic/naphthenic oils, low molecular weight oils derived from a C 5 hydrocarbon fraction, low molecular weight polyisobutylenes, low molecular weight liquid polymerized DAC-B oils, liquid polyterpenes and esters having a boiling point of greater than about 275° C. at 760 mm pressure derived from either aromatic or aliphatic acids.
Claim 14
Dependent Claim
68 words
An adhesive composition according to claim 5 wherein said plasticizing oil is a member of the group consisting of paraffinic/naphthenic oils, low molecular weight oils derived from a C 5 hydrocarbon fraction, low molecular weight polyisobutylenes, low molecular weight liquid polymerized DAC-B oils, liquid polyterpenes and esters having a boiling point of greater than about 275° C. at 760 mm pressure derived from either aromatic or aliphatic acids.
Claim 15
Dependent Claim
68 words
An adhesive composition according to claim 6 wherein said plasticizing oil is a member of the group consisting of paraffinic/naphthenic oils, low molecular weight oils derived from a C 5 hydrocarbon fraction, low molecular weight polyisobutylenes, low molecular weight liquid polymerized DAC-B oils, liquid polyterpenes and esters having a boiling point of greater than about 275° C. at 760 mm pressure derived from either aromatic or aliphatic acids.
Claim 16
Dependent Claim
68 words
An adhesive composition according to claim 7 wherein said plasticizing oil is a member of the group consisting of paraffinic/naphthenic oils, low molecular weight oils derived from a C 5 hydrocarbon fraction, low molecular weight polyisobutylenes, low molecular weight liquid polymerized DAC-B oils, liquid polyterpenes and esters having a boiling point of greater than about 275° C. at 760 mm pressure derived from either aromatic or aliphatic acids.
Claim 17
Dependent Claim
68 words
An adhesive composition according to claim 8 wherein said plasticizing oil is a member of the group consisting of paraffinic/naphthenic oils, low molecular weight oils derived from a C 5 hydrocarbon fraction, low molecular weight polyisobutylenes, low molecular weight liquid polymerized DAC-B oils, liquid polyterpenes and esters having a boiling point of greater than about 275° C. at 760 mm pressure derived from either aromatic or aliphatic acids.
Claim 18
Dependent Claim
69 words
An adhesive composition according to claim 9 wherein said plasticizing oil is a member of the group consisting of a paraffinic/naphthenic oils, low molecular weight oils derived from a C 5 hydrocarbon fraction, low molecular weight polyisobutylenes, low molecular weight liquid polymerized DAC-B oils, liquid polyterpenes and esters having a boiling point of greater than about 275° C. at 760 mm pressure derived from either aromatic or aliphatic acids.
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) | 1984-09-07 | 1985-03-09 | 1985-09-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-09-07 | 1989-03-09 | 1989-09-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-09-07 | 1993-03-09 | 1993-09-08 | $7700.00 | Window Closed / Lapsed |