Patent US4217428A successfully refreshed from Google Patents.
US4217428A
Expired / Lapsed
US
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Blends of substantially amorphous higher 1-olefin copolymers and tackifying resins useful as pressure-sensitive adhesives
Assignee: Eastman Kodak Co
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Filing: 1977-11-07
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Granted: 1980-08-12
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Expires: 1997-11-07
Abstract
Abstract This invention relates to blends of substantially amorphous propylene/higher 1-olefin, 1-butene/higher 1-olefin, or propylene/1-butene/higher 1-olefin copolymers with tackifying resins which provide permanently tacky, low viscosity materials which have useful pressure-sensitive adhesive properties. The copolymers contain 40 to 60 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 10,000 to 75,000 cp. at 190° C.
Inventors
- 👤 Richard L. McConnell
- 👤 Doyle A. Weemes
- 👤 Frederick B. Joyner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:55
CPC Classifications
C; C09; C09J; C09J123/00; C09J123/02; C09J123/16; C08; C08F; C08F210/00; C08F210/04; C08F210/06; C08F210/14; C09J123/18; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10T; Y10T428/00; Y10T428/28; Y10T428/2852; Y10T428/2878; Y10T428/2883
Claims Analysis
Total Claims: 12
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 99 to 60 weight percent of at least one member selected from the group consisting of a propylene/higher 1-olefin copolymer, a 1-butene/higher 1-olefin copolymer, and a propylene/1-butene/higher 1-olefin copolymer, said copolymer containing 40 to 60 mole percent of at least one higher 1-olefin of 6 to 10 carbon atoms and having a melt viscosity of 10,000 to 75,000 centipoise at 190° C., and (2) 1 to 40 weight percent of at least one tackifying resin.
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 99 to 60 weight percent of at least one member selected from the group consisting of a propylene/higher 1-olefin copolymer, a 1-butene/higher 1-olefin copolymer, and a propylene/1-butene/higher 1-olefin copolymer, said copolymer containing 40 to 60 mole percent of at least one higher 1-olefin of 6 to 10 carbon atoms and having a melt viscosity of 10,000 to 75,000 centipoise at 190° C., and (2) 1 to 40 weight percent of at least one tackifying resin.
Claim 3
Dependent Claim
19 words
An adhesive composition according according to claim 1 wherein said tackifying resin is at least one hydrocarbon tackifying resin.
Claim 4
Dependent Claim
93 words
An adhesive composition capable of being used as a hot melt pressure sensitive adhesive comprising a blend of (1) 90 to 60 weight percent of a propylene/higher 1-olefin copolymer, a 1-butene/higher 1-olefin copolymer, and a propylene/1-butene/higher 1-olefin copolymer containing 40 to 60 mole percent of at least one higher 1-olefin of 6 to 10 carbon atoms and having a melt viscosity of 10,000 to 75,000 centipoise at 190° C., and (2) 10 to 40 weight percent of at least one tackifying resin selected from the group consisting of hydrocarbon resins, and polyterpene resins.
Claim 5
Dependent Claim
93 words
An adhesive composition capable of being used as a hot melt pressure sensitive adhesive comprising a blend of (1) 90 to 60 weight percent of a propylene/higher 1-olefin copolymer, a 1-butene/higher 1-olefin copolymer, and a propylene/1-butene/higher 1-olefin copolymer containing 40 to 60 mole percent of at least one higher 1-olefin of 6 to 10 carbon atoms and having a melt viscosity of 10,000 to 75,000 centipoise at 190° C., and (2) 10 to 40 weight percent of at least one tackifying resin selected from the group consisting of hydrocarbon resins, and polyterpene resins.
Claim 6
Dependent Claim
15 words
An adhesive composition according to claim 3 wherein said tackifying resin is a polyterpene resin.
Claim 7
Dependent Claim
17 words
An adhesive composition according to claim 3 wherein said tackifying resin is at least one hydrocarbon resin.
Claim 8
Dependent Claim
52 words
An adhesive composition according to claim 5 wherein said hydrocarbon tackifying resin has a Ring and Ball softening point of from about 80° C. to about 130° C., an acid number of from about 0-2, a saponification value of less than about 1, an iodine value of from about 30 to 100.
Claim 9
Dependent Claim
16 words
An adhesive composition according to claim 6 wherein said hydrocarbon tackifying resin is DAC-B hydrocarbon resin.
Claim 10
Dependent Claim
62 words
An adhesive composition according to claim 6 wherein said hydrocarbon tackifying resin is a resin sold under the trademark Wingtack 95 hydrocarbon resin, wherein said resin is a synthetic polyterpene hydrocarbon type tackifying resin based on a C 5 olefin fraction having a Ring and Ball softening point of 100°±5° C., an iodine number of 30, and a specific gravity of 0.93.
Claim 11
Dependent Claim
41 words
An adhesive composition according to claim 6 wherein said hydrocarbon tackifying resin is a resin sold under the trademark Wingtack 115 hydrocarbon resin having a Ring and Ball softening point of 115°-120° C. and a molecular weight of 1400 to 1500.
Claim 12
Dependent Claim
52 words
An adhesive composition according to claim 4 wherein said polyterpene tackifying resin is a resin sold under the trademark Zonarez 7100 terpene hydrocarbon resin, wherein said resin is a polyterpene type tackifying resin having a Ring and Ball softening point of 100° C. and a specific gravity at 25° C. of 0.97.
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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) | 1983-08-12 | 1984-02-11 | 1984-08-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-08-12 | 1988-02-11 | 1988-08-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-08-12 | 1992-02-11 | 1992-08-12 | $7700.00 | Window Closed / Lapsed |