US4384100A
Expired / Lapsed
US
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Novel diorganopolysiloxane compounds
Assignee: Shin-Etsu Chemical Co Ltd
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Filing: 1981-05-27
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Granted: 1983-05-17
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Expires: 2001-05-27
Abstract
Abstract The invention provides a novel diorganopolysiloxane compound composed of dimethysiloxane units, methyl (2-perfluoroalkylethyl)siloxane units and methyl acyloxyalkylsiloxane units. The novel diorganopolysiloxane compounds of the invention have excellent lubricating properties so that they are useful as an additive ingredient in various materials such as coating compositions, magnetic layer of recording tapes and the like where lubricity or mold releasability is essential.
Inventors
- 👤 Minoru Takamizawa
- 👤 Shigeo Kimura
- 👤 Masashi Somezawa
- 👤 Kunio Kobayashi
- 👤 Yoshio Inoue
- 👤 Hiroshi Yoshioka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 22:52
CPC Classifications
B; B29; B29C; B29C33/00; B29C33/56; B29C33/60; B29C33/62; B29C33/64; C; C08; C08G; C08G77/00; C08G77/04; C08G77/22; C08G77/24; C08G77/38; C08G77/382; C08G77/385; C10; C10M; C10M107/00; C10M107/50; G; G11; G11B; G11B5/00; G11B5/62; G11B5/68; G11B5/70; G11B5/71; C10M2229/00; C10M2229/04; C10M2229/05; C10M2229/051
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
116 words
A diorganopolysiloxane compound having the formula ##STR64## in which Me is a methyl group, Q is a 2-perfluoroalkylethyl group expressed by the formula F--CF 2 ) p CH 2 --CH 2 --, p being an integer from 1 to 13 inclusive, G is an acyloxyalkyl group expressed by the formula R 1 --CO--O--R 2 --, R 1 and R 2 being a saturated or unsaturated monovalent hydrocarbon group having from 7 to 21 carbon atoms and a saturated divalent hydrocarbon group having from 1 to 5 carbon atoms, respectively, A is a group of Me, Q or G, and the suffixes l, m and n are each a positive integer up to and not exceeding 100.
Claim 2
Dependent Claim
116 words
A diorganopolysiloxane compound having the formula ##STR64## in which Me is a methyl group, Q is a 2-perfluoroalkylethyl group expressed by the formula F--CF 2 ) p CH 2 --CH 2 --, p being an integer from 1 to 13 inclusive, G is an acyloxyalkyl group expressed by the formula R 1 --CO--O--R 2 --, R 1 and R 2 being a saturated or unsaturated monovalent hydrocarbon group having from 7 to 21 carbon atoms and a saturated divalent hydrocarbon group having from 1 to 5 carbon atoms, respectively, A is a group of Me, Q or G, and the suffixes l, m and n are each a positive integer up to and not exceeding 100.
References Cited (Backward Citations)
US3112333A
Cited
US3427271A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1986-05-16 | 1986-11-15 | 1987-05-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-05-16 | 1990-11-15 | 1991-05-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-05-16 | 1994-11-15 | 1995-05-17 | $7700.00 | Window Closed / Lapsed |