US4822653A
Expired / Lapsed
US
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Recyclable hot melt adhesive compositions
Assignee: Ingredion Inc
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Filing: 1987-08-05
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Granted: 1989-04-18
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Expires: 2007-08-05
Abstract
Abstract Recyclable hot melt adhesive compositions suitable for plastic bonding may be prepared from styrene-ethylene-butylene-styrene tri-block and/or styrene-ethylene-butylene di-block copolymers which are tackified with at least one hydrogenated resin based on alpha-methyl styrene, vinyl toluene, styrene, coumarone-indene, dicyclopentadiene or mixtures thereof, optionally containing small amounts of white mineral oil or similar diluent. In addition, the adhesive may or may not include minor amounts of the above-described pure monomer resins (specifically composed of styrene, alpha methyl styrene or vinyl toluene or mixtures thereof) in their non-hydrogenated form to serve as end block reinforcing resins.
Inventors
- 👤 Thomas F. Kauffman
- 👤 Paul P. Puletti
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 23:59
CPC Classifications
C; C09; C09J; C09J153/00; C09J153/02; C09J153/025; Y; Y10; Y10T; Y10T428/00; Y10T428/13; Y10T428/1303; Y10T428/1352; Y10T428/1397; Y10T428/28; Y10T428/2813; Y10T428/2817; Y10T428/2826; Y10T428/2852; Y10T428/2878; Y10T428/2883; Y10T428/31504; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/3188; Y10T428/31895; Y10T428/31899; Y10T428/31971; Y10T428/31993
Claims Analysis
Total Claims: 14
Claim 1
Independent Claim
81 words
A recyclable composite comprising at least one plastic substrate coated with a thermally stable hot melt adhesive composition consisting essentially of (a) a styrene-ethylene-butylene-styrene tri-block or styrene-ethylene-butylene di-block copolymer or mixture thereof; (b) at least one hydrogenated, tackifying resin selected from the group consisting of alpha-methyl styrene, styrene, vinyl toluene, coumarone-indene and dicyclopentadiene; (c) 0 to 10% by weight of the adhesive of a non-hydrogenated pure monomer end block reinforcing resin; (d) optionally an oil or wax diluent; and (e) stabilizer.
Claim 2
Dependent Claim
81 words
A recyclable composite comprising at least one plastic substrate coated with a thermally stable hot melt adhesive composition consisting essentially of (a) a styrene-ethylene-butylene-styrene tri-block or styrene-ethylene-butylene di-block copolymer or mixture thereof; (b) at least one hydrogenated, tackifying resin selected from the group consisting of alpha-methyl styrene, styrene, vinyl toluene, coumarone-indene and dicyclopentadiene; (c) 0 to 10% by weight of the adhesive of a non-hydrogenated pure monomer end block reinforcing resin; (d) optionally an oil or wax diluent; and (e) stabilizer.
Claim 3
Dependent Claim
17 words
The composite of claim 1 wherein the hot melt adhesive contains at least one styrene-ethylene-butylene-styrene tri-block copolymer.
Claim 4
Dependent Claim
22 words
The composite of claim 1 wherein the hot melt adhesive contains as the hydrogenated resin a partially or fully hydrogenated styrene resin.
Claim 5
Dependent Claim
114 words
A recyclable PET bottle assembly comprising a PET bottle which has been blow-molded and joined to a HDPE base cup with a hot melt adhesive which consists essentially of: (a) 20 to 40% of a styrene-ethylene-butylene-styrene tri-block or styrene-ethylene-butylene di-block copolymer or mixture thereof; (b) 30 to 80% of at least one hydrogenated tackifying resin selected from the group consisting of alpha-methyl styrene, styrene, vinyl toluene, coumarone-indene and dicyclopentadiene; (c) 0 to 10% of a non-hydrogenated pure monomer end block reinforcing resin; (d) 0 to 40% of an oil or wax diluent; and (e) 0.2 to 4% of a stabilizer; said adhesive having a viscosity at 175° C. of from 1000 to 5000 cps.
Claim 6
Dependent Claim
114 words
A recyclable PET bottle assembly comprising a PET bottle which has been blow-molded and joined to a HDPE base cup with a hot melt adhesive which consists essentially of: (a) 20 to 40% of a styrene-ethylene-butylene-styrene tri-block or styrene-ethylene-butylene di-block copolymer or mixture thereof; (b) 30 to 80% of at least one hydrogenated tackifying resin selected from the group consisting of alpha-methyl styrene, styrene, vinyl toluene, coumarone-indene and dicyclopentadiene; (c) 0 to 10% of a non-hydrogenated pure monomer end block reinforcing resin; (d) 0 to 40% of an oil or wax diluent; and (e) 0.2 to 4% of a stabilizer; said adhesive having a viscosity at 175° C. of from 1000 to 5000 cps.
Claim 7
Dependent Claim
18 words
The PET bottle of claim 4 wherein the hot melt adhesive contains at least one styrene-ethylene-butylene-styrene tri-block copolymer.
Claim 8
Dependent Claim
23 words
The PET bottle of claim 4 wherein the hot melt adhesive contains as the hydrogenated resin a partially or fully hydrogenated styrene resin.
Claim 9
Dependent Claim
75 words
The PET bottle of claim 4 wherein the hot melt adhesive consists essentially of: (a) 25 to 30% of a styrene-ethylene-butylene-styrene tri-block copolymer or styrene-ethylene-butylene di-block or mixtures thereof; (b) 70 to 75% of at least one partially or fully hydrogenated styrene tackifying resin; (c) 0 to 5% of a non-hydrogenated pure monomer end block reinforcing resin; (d) 0 to 10% of an oil or wax diluent; and (e) 0.2 to 1% of a stabilizer.
Claim 10
Dependent Claim
105 words
A recyclable plastic bottle having adhered thereto a paper or plastic label utilizing a hot melt adhesive which consists essentially of (a) 10 to 25% of a styrene-ethylene-butylene-styrene tri-block or styrene-ethylene-butylene di-block copolymer or mixture thereof; (b) 35 to 90% of at least one hydrogenated tackifying resin selected from the group consisting of alpha-methyl styrene, styrene, vinyl toluene, coumarone-indene and dicyclopentadiene; (c) 0 to 10% of a non-hydrogenated pure monomer end block reinforcing resin; (d) 0 to 10% of an oil or wax diluent; and (e) 0.2 to 4% of a stabilizer; said adhesive having a viscosity at 125° C. of 500 to 2500 cps.
Claim 11
Dependent Claim
105 words
A recyclable plastic bottle having adhered thereto a paper or plastic label utilizing a hot melt adhesive which consists essentially of (a) 10 to 25% of a styrene-ethylene-butylene-styrene tri-block or styrene-ethylene-butylene di-block copolymer or mixture thereof; (b) 35 to 90% of at least one hydrogenated tackifying resin selected from the group consisting of alpha-methyl styrene, styrene, vinyl toluene, coumarone-indene and dicyclopentadiene; (c) 0 to 10% of a non-hydrogenated pure monomer end block reinforcing resin; (d) 0 to 10% of an oil or wax diluent; and (e) 0.2 to 4% of a stabilizer; said adhesive having a viscosity at 125° C. of 500 to 2500 cps.
Claim 12
Dependent Claim
18 words
The plastic bottle of claim 8 wherein the hot melt adhesive contains at least one styrene-ethylene-butylene-styrene tri-block copolymer.
Claim 13
Dependent Claim
23 words
The plastic bottle of claim 8 wherein the hot melt adhesive contains as the hydrogenated resin a partially or fully hydrogenated styrene resin.
Claim 14
Dependent Claim
51 words
The plastic bottle of claim 8 wherein the hot melt adhesive consists essentially of: (a) 10 to 15% of a styrene-ethylene-butylene-styrene tri-block copolymer or styrene-ethylene-butylene di-block or mixtures thereof; (b) 85 to 90% of at least one partially or fully hydrogenated styrene tackifying resin. (c) 0.2 to 1% of a stabilizer.
References Cited (Backward Citations)
US3239478A
Cited
US3700633A
Cited
US3749630A
Cited
US3952898A
Cited
US3917607A
Cited
US3932328A
Cited
US3935338A
Cited
US3956223A
Cited
US4136699A
Cited
US4089824A
Cited
US4194926A
Cited
US4212910A
Cited
US4357459A
Cited
US4286077A
Cited
US4358489A
Cited
US4419494A
Cited
US4394915A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1992-04-17 | 1992-10-17 | 1993-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-04-17 | 1996-10-17 | 1997-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-04-17 | 2000-10-17 | 2001-04-18 | $7700.00 | Window Closed / Lapsed |