US3239484A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of polyolefins with oxanilide and a crotonaldehyde-phenol condensation product
Assignee: ExxonMobil Technology and Engineering Co
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Filing: 1962-10-04
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Granted: 1966-03-08
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Expires: 1982-10-04
Abstract
No abstract record available.
Inventors
- 👤 Atmar R Stark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:29
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/04; C08K5/13; C08K5/16; C08K5/20
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
45 words
A STABILIZER SYSTEM FOR POLYOLEFINS COMPRISING A SYNERGISTIC MISTURE OF (1) THE CONDENSATION PRODUCT OF (A) 3 MOLS OF 3-METHYL-6-T-BUTYL PHENOL WITH (B) 1 MOL OF CROTONALDEHYDE AND (2) OXANILIDE IN THE RATIO OF ABOUT 4:1 TO ABOUT 1:1.5 OF OXANILDE TO SAID CONDENSATION PRODUCT.
Claim 2
Dependent Claim
45 words
A STABILIZER SYSTEM FOR POLYOLEFINS COMPRISING A SYNERGISTIC MISTURE OF (1) THE CONDENSATION PRODUCT OF (A) 3 MOLS OF 3-METHYL-6-T-BUTYL PHENOL WITH (B) 1 MOL OF CROTONALDEHYDE AND (2) OXANILIDE IN THE RATIO OF ABOUT 4:1 TO ABOUT 1:1.5 OF OXANILDE TO SAID CONDENSATION PRODUCT.
Claim 3
Dependent Claim
38 words
A COMPOSITION COMPRISING 99.5% POLYPROPYLENE AND 0.5% OF A MIXTURE CONSISTING OF (1) ONE PART OF OXANILIDE AND (2) ONE PART OF THE CONDENSATION PRODUCT OF (A) 3 MOLES OF 3-METHYL-6-T-BUTYL PHENOL AND (B) 1 MOLE OF CROTONALDEHYDE.
Claim 4
Dependent Claim
38 words
A COMPOSITION COMPRISING 99.5% POLYPROPYLENE AND 0.5% OF A MIXTURE CONSISTING OF (1) ONE PART OF OXANILIDE AND (2) ONE PART OF THE CONDENSATION PRODUCT OF (A) 3 MOLES OF 3-METHYL-6-T-BUTYL PHENOL AND (B) 1 MOLE OF CROTONALDEHYDE.
References Cited (Backward Citations)
US2972596A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-07 | 1969-09-06 | 1970-03-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-07 | 1973-09-06 | 1974-03-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-07 | 1977-09-06 | 1978-03-08 | $7700.00 | Window Closed / Lapsed |