US3192243A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Phosphorous derivatives of pentaerythritol
Assignee: Delaware Chemicals Inc
•
Filing: 1962-04-10
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Granted: 1965-06-29
•
Expires: 1982-04-10
Abstract
No abstract record available.
Inventors
- 👤 Gagliani John
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:31
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/547; C07F9/6564; C07F9/6571; C07F9/6574; C07F9/65746; C07F9/657154; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/527; C10; C10L; C10L1/00; C10L1/10; C10L1/14; C10L1/26; C10L1/2633; C10L1/2641; C10M; C10M1/00; C10M1/08; C10M2223/00; C10M2223/02; C10M2223/04; C10M2223/042
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
7 words
PENTAERYTHRITOL TETRA ACID PHOSPHITE OF THE FORMULA
Claim 2
Dependent Claim
7 words
PENTAERYTHRITOL TETRA ACID PHOSPHITE OF THE FORMULA
Claim 3
Dependent Claim
8 words
DI (P,P''-ISOPROPYLIDENEPHENOL) PHENYL PENTAERYTHRITOL DIPHOSPHITE OF THE FORMULA
Claim 4
Dependent Claim
8 words
DI (P,P''-ISOPROPYLIDENEPHENOL) PHENYL PENTAERYTHRITOL DIPHOSPHITE OF THE FORMULA
Claim 5
Dependent Claim
5 words
PENTAERYTHRITOL BISPHOSPHOROUS-PHENYLAMIDE OF THE FORMULA
Claim 6
Dependent Claim
5 words
PENTAERYTHRITOL BISPHOSPHOROUS-PHENYLAMIDE OF THE FORMULA
Claim 7
Dependent Claim
71 words
IN A METHOD OF PRODUCING ORGANIC PHOSPHORUS COMPOUNDS CONSISTING OF PENTAERYTHRITOL POLY ACID PHOSPHITES AND DERIVATIVES THEREOF, THE STEPS COMPRISING REACTING PENTAERYTHRITOL AND PHOSPHORUS TRIHALIDE IN AN INERT SOLVENT WITH THE FORMATION OF HYDROGEN HALIDE, REMOVING SAID HYDROGEN HALIDE DURING THE SAID FORMATION THEREOF AND RECOVERING THE RESULTING PENTAERYTHRITOL POLY ACID PHOSPHITE AS A CRYSTALLINE SOLID WITH A MELTING POINT OF OVER 200*C. AND A CHLORINE CONTENT OF LESS THAN 2%.
Claim 8
Dependent Claim
71 words
IN A METHOD OF PRODUCING ORGANIC PHOSPHORUS COMPOUNDS CONSISTING OF PENTAERYTHRITOL POLY ACID PHOSPHITES AND DERIVATIVES THEREOF, THE STEPS COMPRISING REACTING PENTAERYTHRITOL AND PHOSPHORUS TRIHALIDE IN AN INERT SOLVENT WITH THE FORMATION OF HYDROGEN HALIDE, REMOVING SAID HYDROGEN HALIDE DURING THE SAID FORMATION THEREOF AND RECOVERING THE RESULTING PENTAERYTHRITOL POLY ACID PHOSPHITE AS A CRYSTALLINE SOLID WITH A MELTING POINT OF OVER 200*C. AND A CHLORINE CONTENT OF LESS THAN 2%.
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) | 1968-06-28 | 1968-12-28 | 1969-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-06-28 | 1972-12-28 | 1973-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-06-28 | 1976-12-28 | 1977-06-29 | $7700.00 | Window Closed / Lapsed |