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US4599440A
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Organocyclosiloxane
Assignee: Momentive Performance Materials Japan LLC
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Filing: 1985-08-30
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Granted: 1986-07-08
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Expires: 2005-08-30
Abstract
Abstract Disclosed is an organocyclosiloxane which comprises a compound having the following formula: <IMAGE> wherein R1, R2 and R3, which may be the same or different, represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 8 carbon atoms; Y represents <IMAGE> m is an integer of 3 to 5 and n is an integer of 1 to m.
Inventors
- 👤 Junichiro Watanabe
- 👤 Yuichi Funahashi
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:40
CPC Classifications
C; C07; C07F; C07F7/00; C07F7/02; C07F7/21
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
61 words
An organocyclosiloxane comprising a compound having the following formula: ##STR25## wherein R 1 , R 2 and R 3 , which may be the same or different, represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 8 carbon atoms; Y represents ##STR26## m is an integer 3 to 5 and n is an integer of 1 to m.
Claim 2
Dependent Claim
61 words
An organocyclosiloxane comprising a compound having the following formula: ##STR25## wherein R 1 , R 2 and R 3 , which may be the same or different, represent a hydrogen atom or a monovalent hydrocarbon group having 1 to 8 carbon atoms; Y represents ##STR26## m is an integer 3 to 5 and n is an integer of 1 to m.
Claim 3
Dependent Claim
11 words
An organocyclosiloxane according to claim 1, wherein said m is 4.
Claim 4
Dependent Claim
19 words
An organocyclosiloxane according to claim 1, wherein said R 1 , R 2 and R 3 are methyl groups.
References Cited (Backward Citations)
US4365085A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1989-07-07 | 1990-01-06 | 1990-07-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1993-07-07 | 1994-01-06 | 1994-07-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1997-07-07 | 1998-01-06 | 1998-07-08 | $7700.00 | Window Closed / Lapsed |