US5008340A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Curable adhesives
Assignee: Tyco International Ltd Bermuda
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Filing: 1988-12-21
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Granted: 1991-04-16
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Expires: 2008-12-21
Abstract
Abstract A curable adhesive composition comprises a thermoplastic fluoropolymer, an elastomeric fluoropolymer, an ethylene copolymer and a crosslinking component. The composition preferably also comprises a tackifier. The crosslinking component preferably comprises a free radial generator such as a peroxide and a co-crosslinking agent comprising a multifunctional monomer. The adhesive is particularly useful with heat recoverable articles and bonds exceptionally well to fluoropolymer substrates.
Inventors
- 👤 Robert Guerra
- 👤 Pravin Soni
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 10:53
CPC Classifications
H; H01; H01R; H01R4/00; H01R4/70; H01R4/72; H01R4/723; B; B29; B29C; B29C61/00; B29C61/06; B29C61/0608; B29C61/0616; C; C09; C09J; C09J127/00; C09J127/02; C09J127/12; C09J127/16; C08; C08L; C08L2666/00; C08L2666/02; C08L2666/04
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
115 words
An adhesive composition comprising: (a) about 30 to about 50% by weight of a thermoplastic vinylidene fluoride homopolymer or copolymer; (b) about 5 to about 40% by weight of an elastomeric vinylidene fluoride; (c) about 5 to about 25% by weight of a thermoplastic ethylene copolymer comprising at least 50 mole% of units derived from ethylene and at least 5 mole % of units derived from at least one unsaturated comonomer containing at least one polar group; (d) about 1 to about 10% by weight of a crosslinking agent component; and (e) 0 to about 20% by weight of a tackifier; all percentages by weight being based on the total weight of the five components.
Claim 2
Dependent Claim
115 words
An adhesive composition comprising: (a) about 30 to about 50% by weight of a thermoplastic vinylidene fluoride homopolymer or copolymer; (b) about 5 to about 40% by weight of an elastomeric vinylidene fluoride; (c) about 5 to about 25% by weight of a thermoplastic ethylene copolymer comprising at least 50 mole% of units derived from ethylene and at least 5 mole % of units derived from at least one unsaturated comonomer containing at least one polar group; (d) about 1 to about 10% by weight of a crosslinking agent component; and (e) 0 to about 20% by weight of a tackifier; all percentages by weight being based on the total weight of the five components.
Claim 3
Dependent Claim
13 words
An adhesive composition in accordance with claim 1, wherein (a) is polyvinylidene fluoride.
Claim 4
Dependent Claim
23 words
An adhesive composition in accordance with claim 1, wherein (a) is a thermopolastic copolymer of vinylidene fluoride and at least one other monomer.
Claim 5
Dependent Claim
20 words
An adhesive composition in accordance with claim 3, wherein (a) is a thermoplastic terpolymer of vinylidene fluoride, tetrafluoroethylene and hexafluoropropylene.
Claim 6
Dependent Claim
23 words
An adhesive composition in accordance with claim 1, wherein (b) is an elastomeric copolymer of vinylidene fluoride and at least one other monomer.
Claim 7
Dependent Claim
19 words
An adhesive composition in accordance with claim 1, wherein (b) is an elastomeric copolymer of vinylidene fluoride and hexafluoropropylene.
Claim 8
Dependent Claim
15 words
An adhesive composition in accordance with claim 1, wherein (c) is an ethylene-vinyl acetate copolymer.
Claim 9
Dependent Claim
14 words
An adhesive composition in accordance with claim 1, wherein (d) is 2,5-dimethyl, 2,5-di(t-butylperoxy) hexyne-3.
Claim 10
Dependent Claim
20 words
An adhesive composition in accordance with claim 1, wherein (d) is a mixture of 2,5-dimethyl, 2,5-di(t-butylperoxy) hexyne-3 and triallyl isocyanurate.
Claim 11
Dependent Claim
19 words
An adhesive composition in accordance with claim 1, wherein (d) is a mixture of 2,5-dimethyl, 2,5-di(t-butylperoxy) hexyne-3 and N,N'-m-phenylenedimaleimide.
Claim 12
Dependent Claim
23 words
An adhesive composition in accordance with claim 1, wherein (c) is present in an amount of about 5 to about 20% by weight.
Claim 13
Dependent Claim
19 words
An adhesive composition in accordance with claim 11, wherein (e is a copolymer of vinyl toluene and α-methyl styrene.
References Cited (Backward Citations)
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US4094949A
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US4575537A
Cited
US4530970A
Cited
US4612351A
Cited
US4642326A
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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) | 1994-04-15 | 1994-10-15 | 1995-04-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-15 | 1998-10-15 | 1999-04-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-15 | 2002-10-15 | 2003-04-16 | $7700.00 | Window Closed / Lapsed |