US5194458A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Surface modified fillers and compositions containing the same
Assignee: JM Huber Corp
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Filing: 1991-07-09
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Granted: 1993-03-16
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Expires: 2011-07-09
Abstract
Abstract A surface modified filler comprises sodium aluminocarbonate particles having a surface coating comprising an organofunctional silane or an organofunctional titanate. The surface modified filler is useful as a fire retardant material in thermoplastic and thermoset compositions.
Inventors
- 👤 Michael E. Tarquini
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 06:39
CPC Classifications
C; C01; C01F; C01F11/00; C01F11/18; C01F11/181; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993; Y10T428/2995
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
59 words
A surface modified filler, comprising sodium magnesium aluminocarbonate particles having a surface coating theron, said sodium magnesium aluminocarbonate particles being substantially amorphous and said surface coating comprising an organofunctional silane or an organofunctional titanate said filler giving an UL 94 O.V. rating at 50% loading for thermosetting resins and an UL 94 O.V. rating at 55% for thermoplastic resins.
Claim 2
Dependent Claim
59 words
A surface modified filler, comprising sodium magnesium aluminocarbonate particles having a surface coating theron, said sodium magnesium aluminocarbonate particles being substantially amorphous and said surface coating comprising an organofunctional silane or an organofunctional titanate said filler giving an UL 94 O.V. rating at 50% loading for thermosetting resins and an UL 94 O.V. rating at 55% for thermoplastic resins.
Claim 3
Dependent Claim
28 words
A surface modified filer as defined by claim 1, wherein the sodium aluminocarbonate has the approximate formula 0.8MgO.1.1Na 2 O.Al 2 O 3 .2CO 2 .4.1H 2 O.
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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) | 1996-03-15 | 1996-09-14 | 1997-03-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-03-15 | 2000-09-14 | 2001-03-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-03-15 | 2004-09-14 | 2005-03-16 | $7700.00 | Window Closed / Lapsed |