US4468504A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Thermosetting resin masses based upon aminoplast
Assignee: AUGUST KREMPEL SOEHNE & Co A GERMAN CORP GmbH
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Filing: 1983-10-13
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Granted: 1984-08-28
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Expires: 2003-10-13
Abstract
Abstract The present invention provides a thermosetting, hardenable, flame-inhibiting and self-extinguishing resin mass based upon a conventional aminoplast or reaction resin and optionally containing a conventional cold or warm hardening system, wherein it contains melamine borate.
Inventors
- 👤 Robert Kuemmel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 13:45
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/55
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
30 words
Thermosetting, hardenable, flame-inhibiting and self-extinguishing resin mass based upon a conventional aminoplast or reaction resin and optionally containing a conventional cold or warm hardening system, wherein it contains melamine borate.
Claim 2
Dependent Claim
30 words
Thermosetting, hardenable, flame-inhibiting and self-extinguishing resin mass based upon a conventional aminoplast or reaction resin and optionally containing a conventional cold or warm hardening system, wherein it contains melamine borate.
Claim 3
Dependent Claim
17 words
Resin mass according to claim 1, wherein the melamine borate content is at least 5% by volume.
Claim 4
Dependent Claim
17 words
Resin mass according to claim 2, wherein the melamine borate content is 15 to 25% by volume.
Claim 5
Dependent Claim
25 words
Resin mass according to any of the preceding claims, wherein the melamine borate is present in the resin in a fine and uniformly distributed form.
Claim 6
Dependent Claim
18 words
Resin mass according to claim 4, wherein the melamine borate has an average particle size of <0.1 mm.
Claim 7
Dependent Claim
73 words
Use of the resin mass according to any of claims 1 to 5 for production of storage-stable prepregs according to German Industrial Standard DIN 65 146, Part 2, and CFK prepregs according to LN 29 971, for the impregnation and coating of filament fabrics, especially of glass, carbon and poly-p-phenylene terephthalamide fibres, as well as for the production of difficultly inflammable laminates and shaped bodies, especially for the air and space travel industries.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-08-28 | 1988-02-27 | 1988-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-08-28 | 1992-02-27 | 1992-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-08-28 | 1996-02-27 | 1996-08-28 | $7700.00 | Window Closed / Lapsed |