US4092284A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flameproof nylon molding compositions
Assignee: BASF SE
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Filing: 1976-10-12
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Granted: 1978-05-30
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Expires: 1996-10-12
Abstract
Abstract Filled nylon molding compositions of increased rigidity containing red phosphorus as a flameproofing agent and talc or mica as a filler. They may be converted to moldings which are used, above all, in the electrical industry.
Inventors
- 👤 Rainer Theysohn
- 👤 Rolf Wurmb
- 👤 Wolfgang Seydl
- 👤 Franz Zahradnik
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:07
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/02; C08K3/34
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
56 words
A flameproofed thermoplastic molding composition which comprises (a) a thermoplastic nylon, (b) red phosphorus and (c) talc as a filler, wherein said molding composition contains from about 0.5 to 12% by weight of red phosphorus and from about 10 to 50% by weight of filler, the amounts by weight being based on the total molding composition.
Claim 2
Dependent Claim
56 words
A flameproofed thermoplastic molding composition which comprises (a) a thermoplastic nylon, (b) red phosphorus and (c) talc as a filler, wherein said molding composition contains from about 0.5 to 12% by weight of red phosphorus and from about 10 to 50% by weight of filler, the amounts by weight being based on the total molding composition.
Claim 3
Dependent Claim
28 words
A molding composition as claimed in claim 1, wherein the red phosphorus is used as a powder or as a concentrate in caprolactam or ester wax or nylon.
Claim 4
Dependent Claim
20 words
A molding composition as claimed in claim 1, wherein the filler has a particle size of less than 50 μ.
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) | 1981-05-29 | 1981-11-28 | 1982-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-05-29 | 1985-11-28 | 1986-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-05-29 | 1989-11-28 | 1990-05-30 | $7700.00 | Window Closed / Lapsed |