US3020259A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Polyolefins stabilized with reaction products of nonylphenol and carbonyl compounds
Assignee: Hoechst AG
•
Filing: 1958-09-03
•
Granted: 1962-02-06
•
Expires: 1978-09-03
Abstract
No abstract record available.
Inventors
- 👤 Schulde Felix
- 👤 Mauz Otto
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 07:19
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
AS A NEW COMPOSITION OF MATTER, A SOLID POLYMER PRODUCED FROM AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPENE AND BUTENE-1, SAID POLYMER CONTAINING TERTIARY CARBON ATOMS AND BEING PREPARED BY THE POLYMERIZATION OF THE OLEFIN IN THE PRESENCE OF A CATALYST AMOUNT OF A CATALYST PREPARED FROM A MIXTURE OF AN ORGANOALUMINUM COMPOUND AND A SALT OF OF A HEAVY METAL OF SUBGROUPS IVB-VIB OF THE PERIODIC TABLE, AND 0.05-5% BY WEIGHT OF THE PRODUCT FORMED BY THE REACTION OF NONYL PHENOL, IN THE PRESENCE OF A MINERAL ACID DEHYDRATING AGENT, WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, ACETALDEHYDE, ACETONE METHYLETHYL KETONE, CYCLOHEXANONE AND BENZALDEHYDE.
Claim 2
Dependent Claim
110 words
AS A NEW COMPOSITION OF MATTER, A SOLID POLYMER PRODUCED FROM AN OLEFIN SELECTED FROM THE GROUP CONSISTING OF PROPENE AND BUTENE-1, SAID POLYMER CONTAINING TERTIARY CARBON ATOMS AND BEING PREPARED BY THE POLYMERIZATION OF THE OLEFIN IN THE PRESENCE OF A CATALYST AMOUNT OF A CATALYST PREPARED FROM A MIXTURE OF AN ORGANOALUMINUM COMPOUND AND A SALT OF OF A HEAVY METAL OF SUBGROUPS IVB-VIB OF THE PERIODIC TABLE, AND 0.05-5% BY WEIGHT OF THE PRODUCT FORMED BY THE REACTION OF NONYL PHENOL, IN THE PRESENCE OF A MINERAL ACID DEHYDRATING AGENT, WITH A MEMBER SELECTED FROM THE GROUP CONSISTING OF FORMALDEHYDE, ACETALDEHYDE, ACETONE METHYLETHYL KETONE, CYCLOHEXANONE AND BENZALDEHYDE.
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) | 1965-02-05 | 1965-08-07 | 1966-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-02-05 | 1969-08-07 | 1970-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-02-05 | 1973-08-07 | 1974-02-06 | $7700.00 | Window Closed / Lapsed |