Patent US3284387A successfully refreshed from Google Patents.
US3284387A
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Stabilized polymeric composition and method of preparing same
Assignee: Montedison SpA
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Filing: 1963-02-05
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Granted: 1966-11-08
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Expires: 1983-02-05
Abstract
No abstract record available.
Inventors
- 👤 Cantatore Giuseppe
- 👤 Bordini Fosco
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 21:31
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/16; C08K5/34; C08K5/3467; C08K5/3472; C08K5/3475; C08L; C08L23/00; C08L23/02
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
76 words
A POLYMERIC COMPOSITION WHICH IS STABLE AGAINST THE ACTION OF HEAT, AGEING AND LIGHT, SAID COMPOSITION COMPRISING: (A) A POLYPROPYLENE CONSISTING PREVAILINGLY OF ISOTATIC MACROMOLECULES AND (B) A STABILIZING MIXTURE COMPRISING (1) A HYDROXYBENZOTRIAZOLE AND (2) A BASIC CONDENSATION PRODUCT OF EPICHLOROHYDRIN WITH AN AMINE OR IMINE OR OF A DIHALOGEN ALKANE WITH A DIAMINE, SAID BASIC CONDENSATION PRODUCT BEIN PRESENT IN AN AMOUNT OF FROM ABOUT 1 TO 99% BY WEIGHT OF SAID STABILIZING MIXTURE.
Claim 2
Dependent Claim
76 words
A POLYMERIC COMPOSITION WHICH IS STABLE AGAINST THE ACTION OF HEAT, AGEING AND LIGHT, SAID COMPOSITION COMPRISING: (A) A POLYPROPYLENE CONSISTING PREVAILINGLY OF ISOTATIC MACROMOLECULES AND (B) A STABILIZING MIXTURE COMPRISING (1) A HYDROXYBENZOTRIAZOLE AND (2) A BASIC CONDENSATION PRODUCT OF EPICHLOROHYDRIN WITH AN AMINE OR IMINE OR OF A DIHALOGEN ALKANE WITH A DIAMINE, SAID BASIC CONDENSATION PRODUCT BEIN PRESENT IN AN AMOUNT OF FROM ABOUT 1 TO 99% BY WEIGHT OF SAID STABILIZING MIXTURE.
References Cited (Backward Citations)
US3004896A
Cited
US3031505A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |