US4297499A
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Novel disubstituted dichlorosilane and method for producing same
Assignee: JNC Corp
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Filing: 1978-04-11
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Granted: 1981-10-27
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Expires: 1998-04-11
Abstract
Abstract Novel disubstituted dichlorosilane compounds which have two different specified substituents and are necessary as monomers for preparing special silicone resin are provided and a method for producing same without accompaniment of by-product production is also provided.
Inventors
- 👤 Isao Koga
- 👤 Yohji Terui
- 👤 Masuhito Ohgushi
- 👤 Tohru Kitahara
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 04:33
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/08; C07F7/12; C07F7/14; C08; C08G; C08G77/00; C08G77/04
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
63 words
A disubstituted dichlorosilane having the general formula ##STR4## wherein R' is an alkyl group having 2˜3 carbon atoms and R" is an alkyl group having 8˜20 carbon atoms, or R' is an alkyl group having 4˜20 carbon atoms and R" is an alkyl group having 5˜20 carbon atoms which is different from R', or R' is phenethyl group and R" is cyclohexyl group.
Claim 2
Dependent Claim
63 words
A disubstituted dichlorosilane having the general formula ##STR4## wherein R' is an alkyl group having 2˜3 carbon atoms and R" is an alkyl group having 8˜20 carbon atoms, or R' is an alkyl group having 4˜20 carbon atoms and R" is an alkyl group having 5˜20 carbon atoms which is different from R', or R' is phenethyl group and R" is cyclohexyl group.
Claim 3
Dependent Claim
32 words
A disubstituted dichlorosilane having the general formula ##STR5## defined in claim 1 wherein R' is alkyl group having 2 or 3 carbon atoms and R" is alkyl group has 8˜20 carbon atoms.
Claim 4
Dependent Claim
32 words
A disubstituted dichlorosilane having the general formula ##STR6## defined in claim 1 wherein R' and R" are different alkyl groups and R' has 4˜20 carbon atoms and R" has 5˜20 carbon atoms.
Claim 5
Dependent Claim
23 words
A disubstituted dichlorosilane defined in claims 3 wherein the difference of number of carbon atoms of R' and R" is 6 or more.
Claim 6
Dependent Claim
12 words
A disubstituted dichlorosilane defined in claim 1 having the general formula ##STR7##
Claim 7
Dependent Claim
200 words
Disubstituted dichlorosilanes as set forth in claim 1 which are produced by reacting dichlorosilane with an α-olefin or styrene in the presence of a homogenous complex catalyst selected from the group consisting of RhH(PPh 3 ) 4 , RhCl(CO)(PPh 3 ) 3 , RhCl(PPh 3 ) 3 , RuCl 2 (PPH 3 ) 3 , RuHCl(PPh 3 ) 3 [C 6 H 6 ], RuH 3 (PPh 3 ) 3 [Si(OCH 3 ) 3 ], RuH 3 (PPh 3 ) 3 [Si(OCH 3 ) 2 Pt], RuH(PPh 3 ) 3 [Si(C 2 H 5 ) 2 Cl], RuH 2 (PPh 3 ) 4 , NiCl 2 (PPh 3 ) 2 , PdCl 2 (PPh 3 ) 2 , and Pt (PPh 3 ) 4 , wherein Ph stands for a phenyl group, to form a monosubstituted dichlorosilane having the general formula R°HSiCl 2 (wherein R° is an alkyl having 2-20 carbon atoms, or phenethyl) and reacting said monosubstituted dichlorosilane with an α-olefin having carbon atoms of 2 to 20 (but different from the number of carbon atoms of R°) or cyclohexene (excepting the case where R° is alkyl) in the presence of chloroplatinic acid at a temperature of 30°-150° C.
Claim 8
Dependent Claim
77 words
Disubstituted dichlorosilanes having the general formula ##STR8## wherein R' is an alkyl group having 2 or 3 carbon atoms and R" is alkyl group having 8-20 carbon atoms which are produced by reacting dichlorosilane and ethylene or propylene in the presence of the catalyst of claim 6 at a temperature of 30°-200° C. for 0.1 to 60 hours to produce ethyldichlorosilane or propydichlorosilane compound and reacting said monosubstituted dichlorosilane with an α-olefin compound having 8-20 carbon atoms.
Claim 9
Dependent Claim
74 words
Disubstituted dichlorosilanes having the general formula ##STR9## wherein R' is an alkyl group having 2 or 3 carbon atoms and R" is an alkyl group having 8-20 carbon atoms which are produced by reacting dichlorosilane and an α-olefin compound having 8-20 carbon atoms in the presence of the catalyst of claim 6 at a temperature of 30°-200° C. for 0.1-60 hours to produce monoalkyldichlorosilane and said monosubstituted dichlorosilane is reacted with ethylene or propylene.
Claim 10
Dependent Claim
86 words
Disubstituted dichlorosilanes having the general formula ##STR10## wherein R' and R" are different alkyl groups and R' has 4-20 carbon atoms and R" has 5-20 carbon atoms which are produced by reacting a dichlorosilane with an α-olefin compound having 4-20 carbon atoms in the presence of the catalyst of claim 6 at a temperature of 30°-200° C. for 0.1-60 hours to produce a monosubstituted dichlorosilane compound with an α-olefin compound having 5 to 20 carbon atoms, but different numbers of carbon atoms from said monoalkyl substitute.
Claim 11
Dependent Claim
76 words
Disubstituted dichlorosilanes having the general formula ##STR11## wherein R' and R" are different alkyl groups and R' has 4-20 carbon atoms and R" has 5-20 carbon atoms produced by reacting a dichlorosilane and an α-olefin compound having 5-20 carbon atoms in the presence of the catalyst of claim 6 at a temperature of 30°-200° C. for 0.1-60 hours to produce a monoalkyldichlorosilane having 5 to 20 carbon atoms and the resulting monoalkyldichlorosilane is reacted with butene.
Claim 12
Dependent Claim
52 words
Cyclohexylphenethydichlorosilane having the general formula ##STR12## which is produced by reacting a dichlorosilane and styrene in the presence of the catalyst of claim 6 at a temperature of 30°-150° C. for 0.1-60 hours to produce a monophenethyldichlorosilane and reacting said monosubstitute with cyclohexene at a temperature of 80°-150° C. for 5-20 hours.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-10-26 | 1985-04-27 | 1985-10-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-10-26 | 1989-04-27 | 1989-10-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-10-26 | 1993-04-27 | 1993-10-27 | $7700.00 | Window Closed / Lapsed |