Patent US3170509A successfully refreshed from Google Patents.
Patent US4100075A successfully refreshed from Google Patents.
US4100075A
Expired / Lapsed
US
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Silane treated antimony compounds
Assignee: HARSHAW/FILTROL PARTNERSHIP A PARTNERSHIP OF
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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 up to about 5% by weight of an organosilane having the formula ##STR1## wherein R 1 , R 2 and R 3 are each independently hydrogen, lower alkyl, lower alkenyl, alkoxyalkyl aryl, lower alkylaryl, or lower arylalkyl groups, and R' is an organo functional group 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
- 👤 John Slocum Ashman
- 👤 Anton Mudrak
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 19:02
CPC Classifications
C; C08; C08K; C08K9/00; C08K9/04; C08K9/06; C09; C09C; C09C1/00; C09C1/0096; C09C3/00; C09C3/12; C01; C01P; C01P2004/00; C01P2004/80; C01P2004/82; C01P2004/84; Y; Y10; Y10S; Y10S260/00; Y10S260/24
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
55 words
A finely divided particulate inorganic antimony compound surface modified with up to about 5% by weight of an organosilane having the formula ##STR5## wherein R 1 , R 2 and R 3 are each independently hydrogen, lower alkyl, lower alkenyl, alkoxyalkyl aryl, lower alkylaryl, or lower arylalkyl groups, and R' is an organo functional group.
Claim 2
Dependent Claim
55 words
A finely divided particulate inorganic antimony compound surface modified with up to about 5% by weight of an organosilane having the formula ##STR5## wherein R 1 , R 2 and R 3 are each independently hydrogen, lower alkyl, lower alkenyl, alkoxyalkyl aryl, lower alkylaryl, or lower arylalkyl groups, and R' is an organo functional group.
Claim 3
Dependent Claim
22 words
The compound of claim 1 wherein the organo functional group is aminoalkyl, mercaptoalkyl, haloalkyl, epoxyalkyl, epoxyalkoxyalkyl, acryloxyalkyl or a vinyl functional group.
Claim 4
Dependent Claim
29 words
The compound of claim 1 wherein the organo functional group R' further is represented by the formula X-(CH.sub.2).sub.3 wherein X is an amino, mercapto, halogen, epoxy or ester group.
Claim 5
Dependent Claim
14 words
The compound of claim 1 wherein the inorganic antimony compound is an antimony oxide.
Claim 6
Dependent Claim
14 words
The compound of claim 1 wherein the inorganic antimony compound is an antimony sulfide.
Claim 7
Dependent Claim
26 words
The compound of claim 1 wherein R 1 , R 2 and R 3 are methyl or ethyl groups and R' is an amino propyl group.
Claim 8
Dependent Claim
20 words
The compound of claim 1 wherein the inorganic antimony compound is an antimony oxide, antimony oxychloride, or a metal antimonate.
Claim 9
Dependent Claim
36 words
A method for 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 effective to improve the flame-retardant properties.
Claim 10
Dependent Claim
12 words
The method of claim 8 wherein the resin is a thermoplastic resin.
Claim 11
Dependent Claim
25 words
The method of claim 8 wherein up to about 15% by weight of the surface modified antimony compound is incorporated into the resin or elastomer.
Claim 12
Dependent Claim
13 words
The method of claim 8 wherein the antimony compound is an antimony oxide.
Claim 13
Dependent Claim
21 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)
US3810864A
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 |