US4829124A
Expired / Lapsed
US
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Dynamically crosslinked thermoplastic elastomer
Assignee: AWI Licensing LLC
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Filing: 1988-02-29
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Granted: 1989-05-09
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Expires: 2008-02-29
Abstract
Abstract A thermoplastic elastomer is described which comprises a blend of (a) a carboxylated butadieneacrylonitrile elastomer and (b) an ethylene/acrylic acid copolymer which has been at least partially neutralized with a metal ion, the blend of (a) and (b) having been dynamically crosslinked with an epoxy crosslinking agent having a minimum of 2 epoxy moieties per molecule.
Inventors
- 👤 Lawrence Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 20:48
CPC Classifications
C; C08; C08L; C08L9/00; C08L13/00; C08L23/00; C08L23/02; C08L23/04; C08L23/08; C08L23/0846; C08L23/0869; C08L23/0876; C08L63/00; C08L2205/00; C08L2205/03; C08L23/0853
Claims Analysis
Total Claims: 28
Claim 1
Independent Claim
71 words
A thermoplastic elastomer comprising a blend of (a) a carboxylated butadiene-acrylonitrile elastomer and (b) a copolymer prepared from ethylene and a carboxylic acid monomer having a formula: ##STR4## wherein R can be a hydrogen or a methyl group, and (c) a non-reactive thermoplastic resin; wherein the copolymer of (b) is at least partially neutralized with metal ions and wherein (a) and (b) were dynamically crosslinked with a polyfunctional epoxy crosslinking agent.
Claim 2
Dependent Claim
71 words
A thermoplastic elastomer comprising a blend of (a) a carboxylated butadiene-acrylonitrile elastomer and (b) a copolymer prepared from ethylene and a carboxylic acid monomer having a formula: ##STR4## wherein R can be a hydrogen or a methyl group, and (c) a non-reactive thermoplastic resin; wherein the copolymer of (b) is at least partially neutralized with metal ions and wherein (a) and (b) were dynamically crosslinked with a polyfunctional epoxy crosslinking agent.
Claim 3
Dependent Claim
26 words
A composition as described in claim 1 wherein the metal ion is present in a minimum amount of 0.5 parts per hundred parts of total polymers.
Claim 4
Dependent Claim
25 words
A composition as described in claim 2 wherein the metal ion is selected from the metals of Group I and II of the Periodic Table.
Claim 5
Dependent Claim
61 words
A composition as described in claim 1 wherein (a) the carboxylated butadiene-acrylonitrile elastomer is present in an amount in the range of from about 10 to about 90 parts per hundred parts of total polymers and the copolymer of (b) is present in amount in the range of from about 90 to about 10 parts per hundred parts of total polymers.
Claim 6
Dependent Claim
34 words
A composition as described in claim 1 wherein the epoxy crosslinking agent is present in an amount sufficient to provide a minimum of 0.01 parts of oxirane oxygen per hundred parts of total polymers.
Claim 7
Dependent Claim
21 words
A composition as described in claim 1 wherein the polyfunctional epoxy crosslinking agent is a polyfunctional epoxy of an aromatic compound.
Claim 8
Dependent Claim
31 words
A composition as described in claim 1 wherein the elastomer (a) has a carboxylated monomer concentration in the range of from about 1 to about 20% by weight of the elastomer.
Claim 9
Dependent Claim
40 words
A composition as described in claim 1 wherein the polyfunctional epoxy crosslinking agent is a hydrocarbon compound which can be linear, branched and cyclic, which has from 4 to 28 carbon atoms, and which can contain ester and ether moieties.
Claim 10
Dependent Claim
18 words
A composition as described in claim 1 wherein the polyfunctional epoxy crosslinking agent is an epoxidized natural oil.
Claim 11
Dependent Claim
20 words
A composition as described in claim 6 wherein the polyfunctional epoxy of the aromatic compound is an epoxidized glycidyl, ether.
Claim 12
Dependent Claim
15 words
A composition as described in claim 1 which also contains a pigment and a plasticizer.
Claim 13
Dependent Claim
19 words
A composition as described in claim 1 which also contains an antioxidant, a pigment, a filler, and a plasticizer.
Claim 14
Dependent Claim
15 words
A composition as described in claim 1 wherein the thermoplastic resin is ethylene vinyl acetate.
Claim 15
Dependent Claim
15 words
A composition as described in claim 1 wherein the thermoplastic resin is a chlorosulfonated ppolyethylene.
Claim 16
Dependent Claim
26 words
A composition as described in claim 14 wherein the metal ion is present in a minimum amount of 0.5 parts per hundred parts of total polymers.
Claim 17
Dependent Claim
25 words
A composition as described in claim 14 wherein the metal ion is selected from the metals of Group I and II of the Periodic Table.
Claim 18
Dependent Claim
59 words
A composition as described in claim 14 wherein (a) the carboxylated butadiene-acrylonitrile elastomer is present in an amount in the range of from about 10 to about 90 parts per hundred of total polymers and the copolymer of (b) is present in amount in the range of from about 90 to about 10 parts per hundred of total polymers.
Claim 19
Dependent Claim
34 words
A composition as described in claim 14 wherein the epoxy crosslinking agent is present in an amount sufficient to provide a minimum of 0.01 parts of oxirane oxygen per hundred parts of total polymers.
Claim 20
Dependent Claim
21 words
A composition as described in claim 14 wherein the polyfunctional epoxy crosslinking agent is a polyfunctional epoxy of an aromatic compound.
Claim 21
Dependent Claim
31 words
A composition as described in claim 14 wherein the elastomer (a) has a carboxylated monomer concentration in the range of from about 1 to about 20% by weight of the elastomer.
Claim 22
Dependent Claim
40 words
A composition as described in claim 14 wherein the polyfunctional epoxy crosslinking agent is a hydrocarbon compound which can be linear, branched and cyclic, which has from 4 to 28 carbon atoms, and which can contain ester and ether moieties.
Claim 23
Dependent Claim
18 words
A composition as described in claim 14 wherein the polyfunctional epoxy crosslinking agent is an epoxidized natural oil.
Claim 24
Dependent Claim
53 words
A composition as described in claim 22 wherein the elastomer (a) is present in an amount of from about 90 to about 10 parts per hundred of total polymers; and wherein the copolymer of (b) is present in an amount of from about 10 to about 90 parts per hundred of total polymers.
Claim 25
Dependent Claim
26 words
A composition as described in claim 22 wherein the metal ions are present in a minimum amount of 0.5 parts per hundred parts of total polymers.
Claim 26
Dependent Claim
17 words
A composition as described in claim 22 which also contains a filler, a pigment, and a plasticizer.
Claim 27
Dependent Claim
34 words
A composition as described in claim 22 wherein the epoxy crosslinking agent is present in an amount sufficient to provide a minimum of 0.01 parts of oxirane oxygen per hundred parts of total polymers.
Claim 28
Dependent Claim
30 words
A composition as described in claim 22 wherein the elastomer has a carboxylated monomer concentration in the range of from about 1 to about 20% by weight of the elastomer.
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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) | 1992-05-08 | 1992-11-07 | 1993-05-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-05-08 | 1996-11-07 | 1997-05-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-05-08 | 2000-11-07 | 2001-05-09 | $7700.00 | Window Closed / Lapsed |