US4996267A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heat-curable resin mixture of monocyanate, polycyanate and reactive thermoplastic
Assignee: Cytec Technology Corp
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Filing: 1989-01-30
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Granted: 1991-02-26
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Expires: 2009-01-30
Abstract
Abstract A heat-curable resin mixture comprises (A) a polyfunctional aromatic cyanic ester, (B) a monofunctional aromatic cyanic ester, (C) a thermoplastic polymer, (D) an optional bismaleimide, (E) an optional epoxy resin.
Inventors
- 👤 Dale Gerth
- 👤 Peter Ittemann
- 👤 Helmut Tesch
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 19:13
CPC Classifications
C; C08; C08L; C08L79/00; C08L79/04; C08L79/08; C08L79/085; C08G; C08G59/00; C08G59/18; C08G59/40; C08G59/4007; C08G59/4014; C08G73/00; C08G73/06; C08G73/0622; C08G73/0638; C08G73/065; C08G73/0655; C08K; C08K5/00; C08K5/16; C08K5/315; C08L63/00
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
A heat-curable resin mixture containing (A) 100 parts by weight of a polyfunctional aromatic cyanic ester, (B) from 2 to 100 parts by weight of a monofunctional aromatic cyanic ester, (C) from 5 to 100 parts by weight of a hydroxyl terminated polysulfone or polyether sulfone thermoplastic having an average molecular weight Mn of from 5,000 to 20,000; polymer having a glass transition temperature above 100° C., (D) from 0 to 50 parts by weight of an optional bismaleimide, and (E) from 0 to 50 parts by weight of an optional epoxy resin.
Claim 2
Dependent Claim
93 words
A heat-curable resin mixture containing (A) 100 parts by weight of a polyfunctional aromatic cyanic ester, (B) from 2 to 100 parts by weight of a monofunctional aromatic cyanic ester, (C) from 5 to 100 parts by weight of a hydroxyl terminated polysulfone or polyether sulfone thermoplastic having an average molecular weight Mn of from 5,000 to 20,000; polymer having a glass transition temperature above 100° C., (D) from 0 to 50 parts by weight of an optional bismaleimide, and (E) from 0 to 50 parts by weight of an optional epoxy resin.
References Cited (Backward Citations)
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JPH01165451A
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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) | 1994-02-25 | 1994-08-27 | 1995-02-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-02-25 | 1998-08-27 | 1999-02-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-02-25 | 2002-08-27 | 2003-02-26 | $7700.00 | Window Closed / Lapsed |