Patent US4868057A successfully refreshed from Google Patents.
US4868057A
Expired / Lapsed
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Laminated structure comprising a plurality of polymeric layers adhered with an adhesive composition
Assignee: Kraton Polymers US LLC
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Filing: 1987-12-21
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Granted: 1989-09-19
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Expires: 2007-12-21
Abstract
Abstract A laminated structure comprising a plurality of polymeric layers at least two of said polymeric layers bonded together with an adhesive composition comprising a modified olefin polymer and at least one selectively hydrogenated block copolymer having at least one block which is predominantly a monoalkenyl aromatic hydrocarbon polymer block and at least one block which is a hydrogenated conjugated diolefin polymeric block. The adhesive composition used in the laminated structure significantly improves compatibility of the various polymeric layers thereby enabling the laminated structure or any excess thereof to be used in recycle as well as various molding applications.
Inventors
- 👤 Glenn R. Himes
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:08
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B27/30; B32B27/306; B32B27/36; B32B27/365; B32B7/00; B32B7/04; B32B7/12; B32B2329/00; B32B2329/04; B32B2369/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31507; Y10T428/31511; Y10T428/31515; Y10T428/31551; Y10T428/31573; Y10T428/31587; Y10T428/31725; Y10T428/3175; Y10T428/31786; Y10T428/31797; Y10T428/31855; Y10T428/31909; Y10T428/31913; Y10T428/3192; Y10T428/31924; Y10T428/31928
Claims Analysis
Total Claims: 17
Claim 1
Independent Claim
62 words
A laminated structure comprising a plurality of polymeric layers, at least one of said layers being an adhesive composition comprising a modified olefin polymer having incorporated polar groups and at least one selectively hydrogenated block copolymer having at least one block comprised primarily of a monoalkenyl aromatic hydrocarbon monomer and at least one block comprised predominantly of a hydrogenated conjugated diolefin monomer.
Claim 2
Dependent Claim
62 words
A laminated structure comprising a plurality of polymeric layers, at least one of said layers being an adhesive composition comprising a modified olefin polymer having incorporated polar groups and at least one selectively hydrogenated block copolymer having at least one block comprised primarily of a monoalkenyl aromatic hydrocarbon monomer and at least one block comprised predominantly of a hydrogenated conjugated diolefin monomer.
Claim 3
Dependent Claim
17 words
The laminated structure of claim 1 wherein one of the polymeric layers is an ethylene-vinyl alcohol copolymer.
Claim 4
Dependent Claim
17 words
The laminated structure of claim 1 wherein at least one of said polymeric layers is a polycarbonate.
Claim 5
Dependent Claim
39 words
The laminated structure of claim 1 wherein said adhesive layer comprises from about 50 to about 95 wt % of said selectively hydrogenated block copolymer and from about 50 to about 5 wt % of said modified olefin polymer.
Claim 6
Dependent Claim
15 words
The laminated structure of claim 4 wherein said modified olefin polymer is a maleated polypropylene.
Claim 7
Dependent Claim
39 words
The laminated structure of claim 5 wherein said adhesive layer comprises from about 60 to about 90 wt % of said selectively hydrogenated block copolymer and from about 40 to a about 10 wt % of said maleated polypropylene.
Claim 8
Dependent Claim
38 words
The laminated structure of claim 1 comprising at least one layer of ethylene-vinyl alcohol copolymer and at least one layer of a polycarbonate, said adhesive composition layer being between said ethylene-vinyl alcohol copolymer layer and said polycarbonate layer.
Claim 9
Dependent Claim
35 words
The laminated structure of claim 1 comprising at least one layer of polypropylene, one layer of ethylene-vinyl alcohol copolymer and one layer of polycarbonate, each of said layers having an adhesive composition layer there between.
Claim 10
Dependent Claim
9 words
The laminated structure of claim 7 prepared via coextrusion.
Claim 11
Dependent Claim
30 words
The laminated structure of claim 1 wherein said at least one selectively hydrogenated block copolymer is a blend containing a selectively hydrogenated triblock copolymer and a selectively hydrogenated diblock copolymer.
Claim 12
Dependent Claim
21 words
The laminate structure of claim 1 wherein said monoalkenyl aromatic hydrocarbon monomer is styrene and said hydrogenated conjugated diolefin is butadiene.
Claim 13
Dependent Claim
17 words
The laminated structure of claim 4, wherein said selectively hydrogenated block copolymer is a styrene-butadiene-sytrene triblock copolymer.
Claim 14
Dependent Claim
24 words
The laminated structure of claim 12, wherein said adhesive layer comprises from about 5 to about 25 weight percent of said modified olefin polymer.
Claim 15
Dependent Claim
14 words
The laminated structure of claim 13, wherein said modified olefin polymer is maleated polypropylene.
Claim 16
Dependent Claim
35 words
The laminated structure of claim 10, wherein said blend comprises from about 60 to about 97 weight percent of said triblock copolymer and from about 40 to about 3 weight percent of said diblock copolymer.
Claim 17
Dependent Claim
28 words
The laminated structure of claim 15, wherein said selectively hydrogenated triblock copolymer is a styrene-butadiene-styrene triblock copolymer and said selectively hydrogenated diblock copolymer is a styrene-butadiene diblock copolymer.
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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) | 1992-09-18 | 1993-03-20 | 1993-09-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-09-18 | 1997-03-20 | 1997-09-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-09-18 | 2001-03-20 | 2001-09-19 | $7700.00 | Window Closed / Lapsed |