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US4886689A
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Matrix-matrix polyblend adhesives and method of bonding incompatible polymers
Assignee: Solvay Solexis Inc
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Filing: 1988-05-19
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Granted: 1989-12-12
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Expires: 2008-05-19
Abstract
Abstract A novel adhesive is described, consisting of a matrix-matrix polyblend of polymer components useful in an adhesive tie layer to bond incompatible polymer layers. The adhesives are a blend of the components making up the incompatible polymer layers themselves, or polymers substantially similar to these, and are melt processed to produce a matrix-matrix morphology with mechanical interlocking of the polymer components that is maintained upon cooling. Additives may be provided in one or both adhesive components to improve the cohesive strength of the adhesive formed by the mechanical interlocking.
Inventors
- 👤 Abraham M. Kotliar
- 👤 William Sacks
- 👤 John P. Sibilia
- 👤 Rakesh Kumar
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:57
CPC Classifications
B; B32; B32B; B32B27/00; B32B27/06; B32B27/08; B32B7/00; B32B7/04; B32B7/12; B29; B29C; B29C48/00; B29C48/16; B29C48/18; B32B27/30; B32B27/304; B32B27/32; C; C09; C09J; C09J123/00; C09J123/02; B29C48/03; B29C48/09; B32B2323/00; B32B2323/04; B32B2327/00; B32B2327/12; C08; C08L; C08L2666/00; C08L2666/02; Y; Y10; Y10S; Y10S525/00; Y10S525/903; Y10S525/931; Y10T; Y10T428/00; Y10T428/13; Y10T428/1352; Y10T428/31504; Y10T428/3154; Y10T428/31544
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
99 words
A method for forming a coextruded laminated composite of polymers, which comprises the steps of: coextruding each of said polymers and an adhesive comprising a matrix-matrix polyblend of said polymers, each of said polymers being arranged as layers in apposition to one another, with said adhesive comprising a matrix-matrix polyblend of said polymers interposed between said layers, said polymers in the adhesive being present as interfacially interlocked polymer volume fractions; and applying heat and pressure, so as to form a coextruded laminated composite comprising polymer layers with the matrix-matrix polyblend adhesive interposed between and bonded to the polymer layers.
Claim 2
Independent Claim
99 words
A method for forming a coextruded laminated composite of polymers, which comprises the steps of: coextruding each of said polymers and an adhesive comprising a matrix-matrix polyblend of said polymers, each of said polymers being arranged as layers in apposition to one another, with said adhesive comprising a matrix-matrix polyblend of said polymers interposed between said layers, said polymers in the adhesive being present as interfacially interlocked polymer volume fractions; and applying heat and pressure, so as to form a coextruded laminated composite comprising polymer layers with the matrix-matrix polyblend adhesive interposed between and bonded to the polymer layers.
Claim 3
Dependent Claim
26 words
The method of claim 1 which further comprises the step of forming the adhesive by melt blending a powder blend of the polymers comprising said adhesive.
Claim 4
Dependent Claim
17 words
The method of claim 1 wherein a laminated composite is formed with a halopolymer and a polyolefin.
Claim 5
Dependent Claim
10 words
The method of claim 3 wherein the halopolymer is ethylene-chlorotrifluoroethylene.
Claim 6
Dependent Claim
18 words
The method of claim 4 wherein the polyolefin is selected from the group consisting of polyethlyene and polypropylene.
Claim 7
Dependent Claim
19 words
The method of claim 5 further comprising the step of adding ethylene propylene rubber to the matrix-matrix polyblend adhesive.
Claim 8
Dependent Claim
17 words
The method of claim 3 wherein the fluoropolymer is a perfluoralkoxy polymer and the polyolefin is polyethylene.
Claim 9
Dependent Claim
16 words
The method of claim 3 wherein the fluoropolymer is chlorotrifluoroethylene-vinylidene fluoride and the polyolefin is polyethylene.
Claim 10
Dependent Claim
27 words
The method of claim 1 further including the step of adding an additive to the matrix-matrix polyblend that induces interfacial bridging between the polymers in the polyblend.
Claim 11
Dependent Claim
56 words
The method of claim 9 wherein the additive is selected from the group consisting of compounds having one or more moieties compatible with both of the polymers in the polyblend, compounds having one or more moieties compatible with one polymer and reactive to the other, and compounds having one or more moieties reactive to both polymers.
Claim 12
Dependent Claim
34 words
The method of claim 10 wherein the additive has at least one moiety reactive with one polymer in the polyblend and further comprises an alkyl group having about 1 to about 20 carbon atoms.
Claim 13
Dependent Claim
16 words
The method of claim 11 wherein the additive has about 9 to about 18 carbon atoms.
Claim 14
Dependent Claim
18 words
The method of claim 12 wherein the reactive moiety comprises one or more moieties reactive with a halopolymer.
Claim 15
Dependent Claim
23 words
The method of claim 13 wherein the reactive moiety is selected from the group consisting of amino functionalities, thiols, phenols, amides, and ureas.
Claim 16
Dependent Claim
13 words
The method of claim 14 wherein the additive further comprises a metal oxide.
Claim 17
Dependent Claim
22 words
The method of claim 1 wherein each of said polymers occupies at least about 30% of the surface area of said adhesive.
Claim 18
Dependent Claim
24 words
The method of claim 16 wherein each of said polymers occupies from about 30% to about 70% of the surface area of said adhesive.
Claim 19
Dependent Claim
12 words
A coextruded laminated composite formed according to the process of claim 1.
Claim 20
Dependent Claim
12 words
A coextruded laminated composite formed according to the process of claim 3.
Claim 21
Independent Claim
143 words
A method of forming a coextruded laminated composite of a first polymer and a second polymer comprising: coextruding each of said polymers and an adhesive comprising a matrix-matrix polyblend of first component which adheres to said first polymer and a second component which adheres to said second polymer, each of said polymers being arranged as layers in apposition to one another, with said adhesive comprising a matrix-matrix polyblend of a first component which adheres to said first polymer and a second component which adheres to said second polymer and being interposed between said layers, said components in said adhesive being present as interfacially interlocked fractions of said first component and said second component; and applying heat and pressure, so as to form a coextruded laminated composite comprising the polymer layers with the matrix-matrix polyblend adhesive interposed between and bonded to the polymer layers.
Claim 22
Independent Claim
143 words
A method of forming a coextruded laminated composite of a first polymer and a second polymer comprising: coextruding each of said polymers and an adhesive comprising a matrix-matrix polyblend of first component which adheres to said first polymer and a second component which adheres to said second polymer, each of said polymers being arranged as layers in apposition to one another, with said adhesive comprising a matrix-matrix polyblend of a first component which adheres to said first polymer and a second component which adheres to said second polymer and being interposed between said layers, said components in said adhesive being present as interfacially interlocked fractions of said first component and said second component; and applying heat and pressure, so as to form a coextruded laminated composite comprising the polymer layers with the matrix-matrix polyblend adhesive interposed between and bonded to the polymer layers.
Claim 23
Dependent Claim
12 words
A coextruded laminated composite formed according to the process of claim 20.
Claim 24
Dependent Claim
45 words
A coextruded laminated container for holding or transporting highly reactive chemicals comprising layers of incompatible polymers with an adhesive comprised of a matrix-matrix polyblend of said incompatible polymers interposed between said layers, said polymers in the adhesive being present as interfacially interlocked polymer volume fractions.
Claim 25
Dependent Claim
45 words
A coextruded laminated container for holding or transporting highly reactive chemicals comprising layers of incompatible polymers with an adhesive comprised of a matrix-matrix polyblend of said incompatible polymers interposed between said layers, said polymers in the adhesive being present as interfacially interlocked polymer volume fractions.
Claim 26
Dependent Claim
23 words
The container of claim 22 wherein each of said incompatible polymers occupies at least about 30% of the surface area of said adhesive.
Claim 27
Dependent Claim
25 words
The container of claim 23 wherein each of said incompatible polymers occupies from about 30% to about 70% of the surface area of said adhesive.
Claim 28
Dependent Claim
15 words
An extruded adhesive for bonding incompatible polymer layers comprising a matrix-matrix polyblend of the incompatible.
Claim 29
Dependent Claim
15 words
An extruded adhesive for bonding incompatible polymer layers comprising a matrix-matrix polyblend of the incompatible.
Claim 30
Dependent Claim
23 words
The adhesive of claim 25 wherein each of said incompatible polymers occupies at least about 30% of the surface area of said adhesive.
Claim 31
Dependent Claim
25 words
The adhesive of claim 26 wherein each of said incompatible polymers occupies from about 30% to about 70% of the surface area of said adhesive.
Claim 32
Dependent Claim
19 words
An extruded adhesive for bonding a fluoropolymer to a polyolefin comprising a matrix-matrix polyblend of the polyolefin and fluoropolymer.
Claim 33
Dependent Claim
19 words
An extruded adhesive for bonding a fluoropolymer to a polyolefin comprising a matrix-matrix polyblend of the polyolefin and fluoropolymer.
Claim 34
Dependent Claim
25 words
The adhesive of claim 28 wherein each of said fluoropolymer and said polyolefin occupies at least about 30% of the surface area of said adhesive.
Claim 35
Dependent Claim
27 words
The adhesive of claim 29 wherein each of said fluoropolymer and said polyolefin occupies from about 30% to about 70% of the surface area of said adhesive.
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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) | 1992-12-11 | 1993-06-12 | 1993-12-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-12-11 | 1997-06-12 | 1997-12-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-12-11 | 2001-06-12 | 2001-12-12 | $7700.00 | Window Closed / Lapsed |