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Patent US3883475A successfully refreshed from Google Patents.
US3883475A
Expired / Lapsed
US
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Moulding composition of thermoplastic materials
Assignee: Hoechst AG
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Filing: 1974-02-15
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Granted: 1975-05-13
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Expires: 1994-02-15
Abstract
Abstract Flame proof thermoplastic moulding composition which contains red phosphorus and a substance binding hydrogen phosphide.
Inventors
- 👤 Werner Racky
- 👤 Harald Cherdron
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 13:42
CPC Classifications
C; C08; C08K; C08K3/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
64 words
A MOULDING COMPOSITION OF THERMOPLASTIC MATERIAL CONTAINING FROM 1 TO 20 PERCENT BY WEIGHT, BASED ON THE TOTAL WEIGHT OF MOULDING COMPOSITION, OF RED PHOSPHOURUS AND FROM 0.2 TO 15 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF RED PHOSPHORUS, OF A SUBSTANCE BINDING HYDROGEN PHOSPHIDE SELECTED FROM THE GROUP CONSISTING OF MOS2, HGO, PBO2, AGNO3, HGCL2, FECL3 6 H2O, CUO, AND ACTIVE CARBON.
Claim 2
Dependent Claim
64 words
A MOULDING COMPOSITION OF THERMOPLASTIC MATERIAL CONTAINING FROM 1 TO 20 PERCENT BY WEIGHT, BASED ON THE TOTAL WEIGHT OF MOULDING COMPOSITION, OF RED PHOSPHOURUS AND FROM 0.2 TO 15 PERCENT BY WEIGHT, BASED ON THE WEIGHT OF RED PHOSPHORUS, OF A SUBSTANCE BINDING HYDROGEN PHOSPHIDE SELECTED FROM THE GROUP CONSISTING OF MOS2, HGO, PBO2, AGNO3, HGCL2, FECL3 6 H2O, CUO, AND ACTIVE CARBON.
Claim 3
Dependent Claim
34 words
Moulding composition of thermoplastic material as claimed in claim 1, wherein the thermoplastic material is a polyurethane, a polyamide, a polyformaldehyde, polyethlene terephthalate, an epoxy resin, a styreneacrylonitrile copolymer, polyvinyl chloride, polyethylene, or polypropylene.
Claim 4
Dependent Claim
37 words
Moulding composition of thermoplastic material as claimed in claim 1, wherein the red phosphorus and the substance binding hydrogen phosphide, optionally with the aid of an adhesion promoter, are applied to the surfAce of the thermoplastic material.
Claim 5
Dependent Claim
33 words
Moulding composition of thermoplastic material as claimed in claim 1, wherein the active carbon used as substance for binding hydrogen phosphide has a specific surface of from 900 to 1300 m2 / g.
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) | 1978-05-12 | 1978-11-11 | 1979-05-13 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-12 | 1982-11-11 | 1983-05-13 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-12 | 1986-11-11 | 1987-05-13 | $7700.00 | Window Closed / Lapsed |