US3666841A
Expired / Lapsed
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Aryl-polyol phosphite having terminal halide groups
Assignee: Baker Petrolite LLC
•
Filing: 1969-03-10
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Granted: 1972-05-30
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Expires: 1989-03-10
Abstract
Abstract Aryl-polyol phosphites having terminal halide groups and their use as rubber stabilizers and/or anti-oxidants. The preferred embodiments are aryl-glycol phosphites having terminal halide groups.
Inventors
- 👤 Walter R May
- 👤 Dudley Bruce Merrifield
- 👤 Lewis Bsharah
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 16:35
CPC Classifications
C; C07; C07F; C07F9/00; C07F9/02; C07F9/06; C07F9/08; C07F9/141; C07F9/145; C08; C08K; C08K5/00; C08K5/49; C08K5/51; C08K5/52; C08K5/524; C08K5/526
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
23 words
The aryl-polyol phosphite of claim 1 wherein Ar1 is alkyl phenyl and Ar2 is alkyl phenyl and Ar1 and Ar2 are the same.
Claim 2
Dependent Claim
22 words
The aryl-polyol phosphite of claim 1 wherein Ar1 is alkyl phenyl and Ar2 is alkyl phenyl and Ar1 and Ar2 are different.
Claim 3
Dependent Claim
24 words
The aryl-polyol phosphite of claim 2 wherein OA is derived from ethylene oxide, propylene oxide or a mixture of ethylene oxide and propylene oxide.
Claim 4
Dependent Claim
16 words
The aryl-polyol phosphite of claim 4 wherein the alkyl group has eight to 12 carbon atoms.
Claim 5
Dependent Claim
10 words
The aryl-polyol phosphite of claim 5 wherein n is 1-200.
Claim 6
Dependent Claim
10 words
The aryl-polyol phosphite of claim 6 wherein alkyl is nonyl.
Claim 7
Dependent Claim
9 words
The aryl-polyol phosphite of claim 7 of the formula
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-05-30 | 1975-11-29 | 1976-05-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-05-30 | 1979-11-29 | 1980-05-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-05-30 | 1983-11-29 | 1984-05-30 | $7700.00 | Window Closed / Lapsed |