US4100077A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Zirconate treated antimony compounds
Assignee: Harshaw Chemical Co
•
Filing: 1977-06-23
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Granted: 1978-07-11
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Expires: 1997-06-23
Abstract
Abstract Finely divided particulate inorganic antimony compounds which are surface-modified with an organic zirconate having the formula (RO)4Zr WHEREIN EACH R is independently an aliphatic radical containing from one to about 18 carbon atoms are described. These surface-modified antimony compounds may be incorporated into various organic resin and elastomer systems to improve the flame-retardant properties of these materials.
Inventors
- 👤 Gerald Dennis Burt
- 👤 Anton Mudrak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 00:31
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C09; C09C; C09C1/00; C09C1/0096; C09C3/00; C09C3/08; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
34 words
A finely divided particulate inorganic antimony compound surface-modified with an organic zirconate having the general formula (RO).sub.4 Zr wherein each R is independently an aliphatic radical containing from one to about 18 carbon atoms.
Claim 2
Dependent Claim
34 words
A finely divided particulate inorganic antimony compound surface-modified with an organic zirconate having the general formula (RO).sub.4 Zr wherein each R is independently an aliphatic radical containing from one to about 18 carbon atoms.
Claim 3
Dependent Claim
21 words
The compound of claim 1 wherein the antimony compound is surface-modified with up to about 10% by weight of the zirconate.
Claim 4
Dependent Claim
13 words
The compound of claim 1 wherein the antimony compound is an antimony sulfide.
Claim 5
Dependent Claim
18 words
The compound of claim 1 wherein the antimony compound is antimony oxide, antimony oxychloride or a metal antimonate.
Claim 6
Dependent Claim
15 words
The compound of claim 4 wherein the antimony oxide is antimony trioxide or antimony pentoxide.
Claim 7
Dependent Claim
37 words
A method of improving the flame-retardant properties of organic resins and elastomers comprising incorporating into said resin or elastomer, an amount of the surface-modified antimony compound of claim 1 which is effective to improve the flame-retardant properties.
Claim 8
Dependent Claim
12 words
The method of claim 6 wherein the resin is a thermoplastic resin.
Claim 9
Dependent Claim
24 words
The method of claim 6 wherein up to about 15% by weight of the surface-modified antimony compound is incorporated into the resin or elastomer.
Claim 10
Dependent Claim
13 words
The method of claim 6 wherein the antimony compound is an antimony oxide.
Claim 11
Dependent Claim
20 words
An organic resin or elastomer containing up to about 15% by weight of the surface-modified antimony compound of claim 1.
References Cited (Backward Citations)
US3816367A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1981-07-10 | 1982-01-09 | 1982-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-07-10 | 1986-01-09 | 1986-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-07-10 | 1990-01-09 | 1990-07-11 | $7700.00 | Window Closed / Lapsed |