US3166608A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Elastic products consisting of hydrocarbon elastomers reinforced by fibers of a highly isotactic polymeric higher alpha-olefin and processes for obtaining the same
Assignee: Montedison SpA
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Filing: 1958-11-21
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Granted: 1965-01-19
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Expires: 1978-11-21
Abstract
No abstract record available.
Inventors
- 👤 Natta Giulio
- 👤 Crespi Giovanni
- 👤 Arsizio Busto
- 👤 Borsini Giancarlo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 12:02
CPC Classifications
C; C08; C08F; C08F255/00; C08F255/02; C08F255/04; C08J; C08J5/00; C08J5/04; C08J5/046; C08K; C08K3/00; C08K3/02; C08K3/04; C08K5/00; C08K5/04; C08K5/14; C08L; C08L21/00; C08L23/00; C08L23/02; C08L23/10; C08L23/16; C08L53/00; C08L53/02; C08L91/00; C09; C09J; C09J125/00; C09J125/02; C08J2323/00; C08J2323/02; C08J2323/16; C08L2203/00; C08L2203/12; C08L2312/00; C08L2312/02; C08L2666/00; C08L2666/02; C08L2666/04; Y; Y10; Y10S; Y10S156/00; Y10S156/91; Y10S525/00; Y10S525/932; Y10S8/00; Y10S8/09; Y10T; Y10T428/00; Y10T428/31504; Y10T428/31855; Y10T428/31938
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
142 words
A VULCANIZED ELASTIC PRODUCT CONSISTING ESSENTIALLY OF HYDROCARBON ELASTOMERS SELECTED FROM THE GROUP CONSISTING OF (A) NATURAL RUBBER, (B) LINEAR, SUBSTANTIALLY SATURATED AND AMORPHOUS COPOLYMERS OF HIGHER ALPHA-OLEFINS OF THE FORMULA CH2=CHR WHEREIN R IS AN ALKYL RADICAL CONTAINING FROM 1 TO 5 CARBON ATOMS WITH ETHYLENE CONTAINING FROM 20% TO 70% OF ETHYLENE IN THE COPOLYMER MARCROMOLECULE, (C) MIXTURES OF SAID HIGHER ALPHA-OLEFIN ETHYLENE COPOLYMERS WITH AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) NATURAL RUBBER AND (2) UNSATURATED SYNTHETIC HYDROCARBON RUBBERY POLYMERS OF ALIPHATIC CONJUGATED DIENES, SAID HYDROCARBON ELASTOMERS BEING REINFORCED BY FIBERS OF A LINEAR, POLYPROPYLENE CONTAINING OVER 80% ISOTACTIC MACROMOLECULES, AND SAID ELASTOMER BEING CO-VULCANIZED WITH AND CHEMICALLY BOUND TO THE POLYPROPYLENE REINFORCING FIBERS THROUGH SHORT POLYMERIC BRIDGE LINKAGES FORMED OF UNITS OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF STYRENE AND DIVINYL BENZENE.
Claim 2
Dependent Claim
142 words
A VULCANIZED ELASTIC PRODUCT CONSISTING ESSENTIALLY OF HYDROCARBON ELASTOMERS SELECTED FROM THE GROUP CONSISTING OF (A) NATURAL RUBBER, (B) LINEAR, SUBSTANTIALLY SATURATED AND AMORPHOUS COPOLYMERS OF HIGHER ALPHA-OLEFINS OF THE FORMULA CH2=CHR WHEREIN R IS AN ALKYL RADICAL CONTAINING FROM 1 TO 5 CARBON ATOMS WITH ETHYLENE CONTAINING FROM 20% TO 70% OF ETHYLENE IN THE COPOLYMER MARCROMOLECULE, (C) MIXTURES OF SAID HIGHER ALPHA-OLEFIN ETHYLENE COPOLYMERS WITH AT LEAST ONE MEMBER SELECTED FROM THE GROUP CONSISTING OF (1) NATURAL RUBBER AND (2) UNSATURATED SYNTHETIC HYDROCARBON RUBBERY POLYMERS OF ALIPHATIC CONJUGATED DIENES, SAID HYDROCARBON ELASTOMERS BEING REINFORCED BY FIBERS OF A LINEAR, POLYPROPYLENE CONTAINING OVER 80% ISOTACTIC MACROMOLECULES, AND SAID ELASTOMER BEING CO-VULCANIZED WITH AND CHEMICALLY BOUND TO THE POLYPROPYLENE REINFORCING FIBERS THROUGH SHORT POLYMERIC BRIDGE LINKAGES FORMED OF UNITS OF A SUBSTANCE SELECTED FROM THE GROUP CONSISTING OF STYRENE AND DIVINYL BENZENE.
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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) | 1968-01-19 | 1968-07-20 | 1969-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-01-19 | 1972-07-20 | 1973-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-01-19 | 1976-07-20 | 1977-01-19 | $7700.00 | Window Closed / Lapsed |