Patent US3928286A successfully refreshed from Google Patents.
US3928286A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-resistant adhesive composition from a bis-maleimide, an alpha-cyanoacrylate and optionally a diamine
Assignee: Toshiba Corp
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Filing: 1974-04-01
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Granted: 1975-12-23
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Expires: 1994-04-01
Abstract
Abstract A heat-resistant adhesive composition including 85 to 1 mol% of N,N''-substituted bismaleimide and 15 to 99 mol% of Alpha cyanoacrylate. Diamines or silane coupling agents may be incorporated.
Inventors
- 👤 Keiiti Akiyama
- 👤 Shyuichi Suzuki
- 👤 Yukihiro Mikogami
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 21:49
CPC Classifications
B; B32; B32B; B32B7/00; B32B7/04; B32B7/12; C; C07; C07C; C07C255/00; B32B15/00; B32B15/04; B32B15/08; B32B27/00; B32B27/06; B32B27/10; B32B27/28; B32B27/281; C07D; C07D207/00; C07D207/02; C07D207/44; C07D207/444; C07D207/448; C07D207/452; C09; C09J; C09J135/00; C09J135/04; C09J179/00; C09J179/04; C09J179/08; C09J179/085; C09J4/00; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31721
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
35 words
A HEAT-RESISTANT SOLID ADHESIVE COMPOSITION CONSISTING ESSENTIALLY OF THE POLYMERIC REACTION PRODUCT OF: 85 TO 2 MOL% OF AT LEAST ONE N,N''-SUBSTITUTED BISMALEIMIDE SELECTED FROM THE GROUP CONSISTING OF THE BISMALEIMIDE REPRESENTED BY THE FORMYLA
Claim 2
Dependent Claim
35 words
A HEAT-RESISTANT SOLID ADHESIVE COMPOSITION CONSISTING ESSENTIALLY OF THE POLYMERIC REACTION PRODUCT OF: 85 TO 2 MOL% OF AT LEAST ONE N,N''-SUBSTITUTED BISMALEIMIDE SELECTED FROM THE GROUP CONSISTING OF THE BISMALEIMIDE REPRESENTED BY THE FORMYLA
Claim 3
Dependent Claim
16 words
A heat-resistant adhesive composition according to claim 1, wherein said Alpha -cyanoacrylate is ethyl Alpha -cyanoacrylate.
Claim 4
Dependent Claim
31 words
A heat-resistant adhesive composition according to claim 1, wherein the content of said N,N''-substituted bismaleimide is 85 to 25 mol% and that of said Alpha -cyanoacrylate is 15 to 75 mol%.
Claim 5
Dependent Claim
27 words
A heat-resistant solid adhesive composition consisting essentially of the polymeric reaction product of: 85 to 1 mol% of at least one N,N''-substituted bismaleimide represented by the formula
Claim 6
Dependent Claim
27 words
A heat-resistant solid adhesive composition consisting essentially of the polymeric reaction product of: 85 to 1 mol% of at least one N,N''-substituted bismaleimide represented by the formula
Claim 7
Dependent Claim
16 words
A heat-resistant adhesive composition according to claim 4 wherein said Alpha -cyanoacrylate is ethyl Alpha -cyanoacrylate.
Claim 8
Dependent Claim
31 words
A heat-resistant adhesive composition according to claim 4, wherein the content of said N,N''-substituted bismaleimide is 85 to 25 mol% and that of said Alpha -cyanoacrylate is 15 to 75 mol%.
Claim 9
Dependent Claim
18 words
A heat-resistant adhesive composition according to claim 1 diluted with an inert solvent of relatively low boiling point.
References Cited (Backward Citations)
US3742089A
Cited
US3761430A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-12-22 | 1979-06-23 | 1979-12-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-12-22 | 1983-06-23 | 1983-12-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-12-22 | 1987-06-23 | 1987-12-23 | $7700.00 | Window Closed / Lapsed |