US3935159A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Plastics compositions based on polyvinylidene fluoride
Assignee: Solvay SA
•
Filing: 1974-06-28
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Granted: 1976-01-27
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Expires: 1994-06-28
Abstract
Abstract Plastics compositions based on polyvinylidene fluoride which possess improved impact strength comprising 0.05 to 6 parts by weight of rhombohedral iron sesquioxide per 100 parts of polyvinylidene fluoride.
Inventors
- 👤 Edmond Demillecamps
- 👤 Andre Orban
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 22:45
CPC Classifications
C; C08; C08K; C08K3/00; C08K3/18; C08K3/20; C08K3/22; Y; Y10; Y10T; Y10T428/00; Y10T428/31504; Y10T428/3154; Y10T428/31678
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
29 words
A plastic composition based on polyvinylidene fluoride which possesses improved impact strength, comprising 0.05 to 6 parts by weight of rhombohedral iron sesquioxide per 100 parts of polyvinylidene fluoride.
Claim 2
Dependent Claim
29 words
A plastic composition based on polyvinylidene fluoride which possesses improved impact strength, comprising 0.05 to 6 parts by weight of rhombohedral iron sesquioxide per 100 parts of polyvinylidene fluoride.
Claim 3
Dependent Claim
28 words
The composition according to claim 1 which also possesses increased flexibility, comprising 0.05 to 1 part by weight of rhombohedral iron sesquioxide per 100 parts of polyvinylidene fluoride.
Claim 4
Dependent Claim
28 words
The compositions according to claim 1 which also possesses increased rigidity, comprising 1 to 6 parts by weight of rhombohedral iron sesquioxide per 100 parts of polyvinylidene fluoride.
Claim 5
Dependent Claim
37 words
The composition according to claim 1 which also shows greater adhesion and which can be used for coating metal surfaces, comprising 0.3 to 6 parts by weight of rhombohedral iron sesquioxide per 100 parts of polyvinylidene fluoride.
References Cited (Backward Citations)
US3340222A
Cited
US3498939A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-01-26 | 1979-07-28 | 1980-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-01-26 | 1983-07-28 | 1984-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-01-26 | 1987-07-28 | 1988-01-27 | $7700.00 | Window Closed / Lapsed |