US3280070A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stabilization of unstable organic material with phosphonates, phosphates and/or thiodipropionates
Assignee: Novartis Corp
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Filing: 1965-05-05
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Granted: 1966-10-18
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Expires: 1985-05-05
Abstract
No abstract record available.
Inventors
- 👤 Battista Anthony Di
- 👤 Dexter Martin
- 👤 John D Spivack
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:52
CPC Classifications
C; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/524; C07; C07F; C07F9/00; C07F9/02; C07F9/28; C07F9/38; C07F9/40; C07F9/4003; C07F9/4056; C08K5/53; C08K5/5317; C08K5/5333
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
54 words
THE STABILIZE COMPOSITION OF MATTER WHICH COMPRISES NORMALLY SOLID POLYPROPYLENE AND THE STABILIZER SYSTEM COMPRISING (I) FROM ABOUT 0.05% TO ABOUT 0.25% OF DI-N-OCTADECYL - 3,5 - DI-TERTIARYBUTYL - 4- HYDROXYBENZYLPHOSPHONATE, AND (II) FROM ABOUT 0.05% TO ABOUT 1% OF TRIDCTADECYLPHOSPHITE, ALL OF SAID PERCENTS BEING BY WEIGHT, BASED UPON THE TOTAL STABILIZED COMPOSITION.
Claim 2
Dependent Claim
54 words
THE STABILIZE COMPOSITION OF MATTER WHICH COMPRISES NORMALLY SOLID POLYPROPYLENE AND THE STABILIZER SYSTEM COMPRISING (I) FROM ABOUT 0.05% TO ABOUT 0.25% OF DI-N-OCTADECYL - 3,5 - DI-TERTIARYBUTYL - 4- HYDROXYBENZYLPHOSPHONATE, AND (II) FROM ABOUT 0.05% TO ABOUT 1% OF TRIDCTADECYLPHOSPHITE, ALL OF SAID PERCENTS BEING BY WEIGHT, BASED UPON THE TOTAL STABILIZED COMPOSITION.
Claim 3
Dependent Claim
155 words
THE STABILIZED COMPOSITION OF MATTER WHICH COMPRISES NORMALLY SOLID POLYPROPYLENE AND THE STABILIZER SYSTEM COMPRISING (I) FROM ABOUT 0.05% TO ABOUT 0.25% BY WEIGHT OF THE SUBSTITUTED PHOSPHOROUS STABILIZER OF THE FORMULA: (DI(CH3-C(-CH3)2-),HO-PHENYL)-CH(-R4)-(CH2)N-P(=O)(-R1)-R WHEREIN R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYLPHENOXY HAVING 7 TO 24 CARBON ATOMS, ALKOXY HAVING 12 TO 24 CARBON ATOMS, PHENOXY, ALKYLTHIO HAVING 12 TO 24 CARBON ATOMS AND PHENYL; R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYLPHENOXY HAVING 7 TO 24 CARBON ATOMS, ALKOXY HAVING 12 TO 24 CARBON ATOMS, PHENOXY AND ALKYLTHIO HAVING 12 TO 24 CARBON ATOMS; R4 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKYL; N IS A MEMBER OF THE GROUP CONSISTING OF 0, 1, 2 AND 3, AND (II) A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) FROM ABOUT 0.05% TO ABOUT 1% BY WEIGHT OF THE PHOSPHIITE STABILIZER OF THE FORMULA:
Claim 4
Dependent Claim
155 words
THE STABILIZED COMPOSITION OF MATTER WHICH COMPRISES NORMALLY SOLID POLYPROPYLENE AND THE STABILIZER SYSTEM COMPRISING (I) FROM ABOUT 0.05% TO ABOUT 0.25% BY WEIGHT OF THE SUBSTITUTED PHOSPHOROUS STABILIZER OF THE FORMULA: (DI(CH3-C(-CH3)2-),HO-PHENYL)-CH(-R4)-(CH2)N-P(=O)(-R1)-R WHEREIN R IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYLPHENOXY HAVING 7 TO 24 CARBON ATOMS, ALKOXY HAVING 12 TO 24 CARBON ATOMS, PHENOXY, ALKYLTHIO HAVING 12 TO 24 CARBON ATOMS AND PHENYL; R1 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF ALKYLPHENOXY HAVING 7 TO 24 CARBON ATOMS, ALKOXY HAVING 12 TO 24 CARBON ATOMS, PHENOXY AND ALKYLTHIO HAVING 12 TO 24 CARBON ATOMS; R4 IS A MEMBER SELECTED FROM THE GROUP CONSISTING OF HYDROGEN AND LOWER ALKYL; N IS A MEMBER OF THE GROUP CONSISTING OF 0, 1, 2 AND 3, AND (II) A MEMBER SELECTED FROM THE GROUP CONSISTING OF (A) FROM ABOUT 0.05% TO ABOUT 1% BY WEIGHT OF THE PHOSPHIITE STABILIZER OF THE FORMULA:
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) | 1969-10-17 | 1970-04-18 | 1970-10-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-10-17 | 1974-04-18 | 1974-10-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-10-17 | 1978-04-18 | 1978-10-18 | $7700.00 | Window Closed / Lapsed |