Patent US4458087A successfully refreshed from Google Patents.
US4458087A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Organosilicon compounds
Assignee: Individual
•
Filing: 1981-10-16
•
Granted: 1984-07-03
•
Expires: 2001-10-16
Abstract
Abstract There are prepared silafluoroolefins and polymers thereof by reacting carbon with silicon tetrafluoride and a source of hydrogen followed by polymerization. The polymers are useful for architectural purposes.
Inventors
- 👤 Roy E. McAlister
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:03
CPC Classifications
C; C08; C08F; C08F30/00; C08F30/04; C08F30/08; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12
Claims Analysis
Total Claims: 58
Claim 1
Independent Claim
7 words
Monosilatetrafluoroethylene of the formula SiCF 4 .
Claim 2
Dependent Claim
7 words
Monosilatetrafluoroethylene of the formula SiCF 4 .
Claim 3
Dependent Claim
33 words
A fluorine containing compound of the formula ##STR9## where n is an integer of at least 0 and X is hydrogen or fluorine with the proviso that at least one X is fluorine.
Claim 4
Dependent Claim
33 words
A fluorine containing compound of the formula ##STR9## where n is an integer of at least 0 and X is hydrogen or fluorine with the proviso that at least one X is fluorine.
Claim 5
Dependent Claim
17 words
A fluorine containing compound according to claim 2 where n is an integer from 0 to 3.
Claim 6
Dependent Claim
17 words
A fluorine containing compound according to claim 3 wherein n is an integer from 1 to 3.
Claim 7
Dependent Claim
21 words
A fluorine containing compound according to claim 4 wherein four of the X groups are fluorine and the rest are hydrogen.
Claim 8
Dependent Claim
46 words
A fluorine containing compound according to claim 2 wherein four of the X groups are fluorine and wherein two of the fluorine atoms are attached to the silicon atom and the other two fluorine atoms are attached to a carbon atom adjacent to the silicon atom.
Claim 9
Dependent Claim
12 words
A fluorine containing compound according to claim 3 where n is 0.
Claim 10
Dependent Claim
11 words
A fluorine containing compound according to claim 7 having formula I.
Claim 11
Dependent Claim
11 words
A fluorine containing compound according to claim 7 having formula II.
Claim 12
Dependent Claim
11 words
A fluorine containing compound according to claim 2 having formula I.
Claim 13
Dependent Claim
11 words
A fluorine containing compound according to claim 2 having formula II.
Claim 14
Dependent Claim
12 words
Monosilatetrafluorobutylene of the formula Si C 3 F 4 H 4 .
Claim 15
Dependent Claim
12 words
Monosilatetrafluorobutylene of the formula Si C 3 F 4 H 4 .
Claim 16
Dependent Claim
9 words
Monosilatetrafluorobutylene according to claim 12 having the formula ##STR10##
Claim 17
Dependent Claim
9 words
Monosilatetrafluorobutylene according to claim 12 having the formula ##STR11##
Claim 18
Dependent Claim
28 words
A process for preparing the monosilatetrafluorobutadiene of claim 1 comprising reacting a source of carbon which is carbon, coal or a lower aliphatic hydrocarbon and SiF 4 .
Claim 19
Dependent Claim
17 words
A process according to claim 15 wherein the source of carbon is carbon dissolved in carbon disulfide.
Claim 20
Dependent Claim
44 words
A process for preparing a compound according to claim 2 comprising reacting a source of carbon which is carbon, coal or a lower aliphatic hydrocarbon, a source of fluorine which is SiF 4 or SiCF 4 and a source of hydrogen at elevated temperature.
Claim 21
Dependent Claim
19 words
A process according to claim 17 comprising carrying out the reaction at a temperature of at least 1000° F.
Claim 22
Dependent Claim
14 words
A process according to claim 18 wherein the temperature is 1500° to 2000° F.
Claim 23
Dependent Claim
14 words
A process according to claim 17 wherein the reactants comprise SiF 4 and methane.
Claim 24
Dependent Claim
22 words
A process according to claim 17 wherein the reactants comprise SiCF 4 , a source of carbon and a source of hydrogen.
Claim 25
Dependent Claim
17 words
A process according to claim 21 wherein the reactants comprise SiCF 4 and a lower aliphatic hydrocarbon.
Claim 26
Dependent Claim
12 words
A process according to claim 22 wherein the reactants also include carbon.
Claim 27
Dependent Claim
19 words
A process according to claim 17 wherein the reactants include SiF 4 , carbon and a lower aliphatic hydrocarbon.
Claim 28
Dependent Claim
19 words
A process according to claim 24 wherein the reactants include SiF 4 , coal and a lower aliphatic hydrocarbon.
Claim 29
Dependent Claim
8 words
A polymer of the monomer of claim 1.
Claim 30
Dependent Claim
10 words
A polymer according to claim 26 which is a homopolymer.
Claim 31
Dependent Claim
17 words
A polymer according to claim 26 which is a copolymer of SiCF 4 and a copolymerizable monomer.
Claim 32
Dependent Claim
16 words
A polymer according to claim 28 wherein the copolymerizable monomer is ethylene, propylene or vinyl chloride.
Claim 33
Dependent Claim
23 words
A polymer according to claim 29 wherein the SiCF 4 is employed in an amount of at least 50% of the polymerizable monomers.
Claim 34
Dependent Claim
8 words
A polymer of a monomer of claim 2.
Claim 35
Dependent Claim
10 words
A polymer according to claim 31 which is a homopolymer.
Claim 36
Dependent Claim
14 words
A polymer according to claim 31 which is a copolymer with a copolymerizable monomer.
Claim 37
Dependent Claim
24 words
A polymer according to claim 33 wherein the copolymerizable monomer is present in an amount of not over 50% of the total polymerizable monomer.
Claim 38
Dependent Claim
16 words
A polymer according to claim 34 wherein the copolymerizable monomer is ethylene, propylene or vinyl chloride.
Claim 39
Dependent Claim
12 words
A polymer according to claim 31 of a monomer having formula I.
Claim 40
Dependent Claim
12 words
A polymer according to claim 31 of a monomer having formula II.
Claim 41
Dependent Claim
12 words
A polymer according to claim 31 where n is 0 to 3.
Claim 42
Dependent Claim
19 words
A polymer according to claim 38 wherein four of the X groups are fluorine and the rest are hydrogen.
Claim 43
Dependent Claim
35 words
A polymer according to claim 39 wherein two of the fluorine atoms are attached to the silicon atom and the other two fluorine atoms are attached to a carbon atom adjacent to the silicon atom.
Claim 44
Dependent Claim
8 words
A polymer of the monomer of claim 12.
Claim 45
Dependent Claim
11 words
A copolymer of the monomer of claim 1 and vinyl chloride.
Claim 46
Dependent Claim
10 words
A copolymer of the monomer of claim 1 and ethylene.
Claim 47
Dependent Claim
10 words
A copolymer of the monomer of claim 1 and propylene.
Claim 48
Dependent Claim
10 words
A composition consisting essentially of the compound of claim 1.
Claim 49
Dependent Claim
14 words
A composition consisting essentially of the compound of claim 1 and a copolymerizable monomer.
Claim 50
Dependent Claim
16 words
A composition according to claim 46 wherein the copolymerizable monomer is ethylene, propylene or vinyl chloride.
Claim 51
Dependent Claim
12 words
A composition according to claim 47 wherein the copolymerizable monomer is ethylene.
Claim 52
Dependent Claim
25 words
A composition consisting essentially of the compound of claim 1 and at least one monosilicontetrafluorobutylene of the formula SiC 3 F 4 H 4 .
Claim 53
Dependent Claim
13 words
A composition consisting essentially of at least one compound according to claim 2.
Claim 54
Dependent Claim
31 words
A composition consisting essentially of at least one compound according to claim 2 and a copolymerizable monomer other than SiCF 4 and other than a compound of formula I or II.
Claim 55
Dependent Claim
43 words
A composition consisting essentially of at least one monosilicontetrafluorobutylene of the formula SiC 3 F 4 H 4 according to claim 12 and a copolymerizable monomer other than SiCF 4 and other than of the formula SiC 3 F 4 H 4 .
Claim 56
Dependent Claim
18 words
A polymer according to claim 28 wherein the copolymerizable monomer is ethylene, propylene, vinyl chloride, tetrafluoroethylene or perfluoropropylene.
Claim 57
Dependent Claim
18 words
A polymer according to claim 33 wherein the copolymerizable monomer is ethylene, propylene, vinyl chloride, tetrafluoroethylene or perfluoropropylene.
Claim 58
Dependent Claim
18 words
A composition according to claim 46 wherein the copolymerizable monomer is ethylene, propylene, vinyl chloride, tetrafluoroethylene or perfluoropropylene.
References Cited (Backward Citations)
DD59284A
Cited
US2539638A
Cited
US2682512A
Cited
US2675307A
Cited
US2800494A
Cited
US2802851A
Cited
US2962357A
Cited
US3453079A
Cited
US3661519A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1987-07-03 | 1988-01-02 | 1988-07-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1991-07-03 | 1992-01-02 | 1992-07-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1995-07-03 | 1996-01-02 | 1996-07-03 | $7700.00 | Window Closed / Lapsed |