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US4898958A
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Organosilicon compound
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1988-09-09
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Granted: 1990-02-06
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Expires: 2008-09-09
Abstract
Abstract An organosilicon compound represented by general formula (I): ##STR1## wherein R 1 , R 2 , R 3 , R 4 and R 5 may be the same or different and each represent an alkyl group having 1 to 4 carbon atoms; R f represents --C 1 F 2l+1 where l represents an integer of 3 to 10, ##STR2## where q represents an integer of 1 to 5, or ##STR3## where q is as defined above; and X represents --O-- or --CH 2 --; provided that n is 3 and m is an integer of 0 to 2 when X represents --O--, and n is 0 and m is 1 when X represents --CH 2 --. The compound is useful for preparing silicone polymers having a high thermal resistance, chemical resistance and weathering resistance and have a small surface energy.
Inventors
- 👤 Hirofumi Kishita
- 👤 Koichi Yamaguchi
- 👤 Akira Yoshida
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 14:30
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/21
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
103 words
An organosilicon compound represented by general formula (I): ##STR26## wherein R 1 , R 2 , R 3 , R 4 and R 5 may be the same or different and each represent an alkyl group having 1 to 4 carbon atoms; R f represents ##STR27## where q represents an integer of 1 to 5, or ##STR28## where q is as defined above; and X represents --O-- or --CH 2 --; provided that n is 3 and m is an integer of 0 to 2 when X represents --O--, and n is 0 and m is 1 when X represents --CH 2 --.
Claim 2
Dependent Claim
103 words
An organosilicon compound represented by general formula (I): ##STR26## wherein R 1 , R 2 , R 3 , R 4 and R 5 may be the same or different and each represent an alkyl group having 1 to 4 carbon atoms; R f represents ##STR27## where q represents an integer of 1 to 5, or ##STR28## where q is as defined above; and X represents --O-- or --CH 2 --; provided that n is 3 and m is an integer of 0 to 2 when X represents --O--, and n is 0 and m is 1 when X represents --CH 2 --.
Claim 3
Dependent Claim
25 words
The compound of claim 1, wherein R 1 , R 2 , R 3 , R 4 and R 5 each represent a methyl group.
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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) | 1993-02-05 | 1993-08-07 | 1994-02-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1997-02-05 | 1997-08-07 | 1998-02-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2001-02-05 | 2001-08-07 | 2002-02-06 | $7700.00 | Window Closed / Lapsed |